diff options
Diffstat (limited to 'drivers/input/touchscreen')
61 files changed, 1719 insertions, 301 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 1a03de7fcfa6..7d5b72ee07fa 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -103,6 +103,18 @@ config TOUCHSCREEN_ADC To compile this driver as a module, choose M here: the module will be called resistive-adc-touch.ko. +config TOUCHSCREEN_APPLE_Z2 + tristate "Apple Z2 touchscreens" + depends on SPI && (ARCH_APPLE || COMPILE_TEST) + help + Say Y here if you have an ARM Apple device with + a touchscreen or a touchbar. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called apple_z2. + config TOUCHSCREEN_AR1021_I2C tristate "Microchip AR1020/1021 i2c touchscreen" depends on I2C && OF @@ -429,6 +441,16 @@ config TOUCHSCREEN_HIDEEP To compile this driver as a module, choose M here : the module will be called hideep_ts. +config TOUCHSCREEN_HIMAX_HX852X + tristate "Himax HX852x(ES) touchscreen" + depends on I2C + help + Say Y here if you have a Himax HX852x(ES) touchscreen. + If unsure, say N. + + To compile this driver as a module, choose M here: the module + will be called himax_hx852x. + config TOUCHSCREEN_HYCON_HY46XX tristate "Hycon hy46xx touchscreen support" depends on I2C @@ -453,6 +475,18 @@ config TOUCHSCREEN_HYNITRON_CSTXXX To compile this driver as a module, choose M here: the module will be called hynitron-cstxxx. +config TOUCHSCREEN_HYNITRON_CST816X + tristate "Hynitron CST816x touchscreen" + depends on I2C + help + Say Y here if you have a touchscreen using a Hynitron + CST816x series touchscreen controller. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called hynitron-cst816x. + config TOUCHSCREEN_ILI210X tristate "Ilitek ILI210X based touchscreen" depends on I2C diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 82bc837ca01e..ab9abd151078 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879_I2C) += ad7879-i2c.o obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI) += ad7879-spi.o obj-$(CONFIG_TOUCHSCREEN_ADC) += resistive-adc-touch.o obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o +obj-$(CONFIG_TOUCHSCREEN_APPLE_Z2) += apple_z2.o obj-$(CONFIG_TOUCHSCREEN_AR1021_I2C) += ar1021_i2c.o obj-$(CONFIG_TOUCHSCREEN_ATMEL_MXT) += atmel_mxt_ts.o obj-$(CONFIG_TOUCHSCREEN_AUO_PIXCIR) += auo-pixcir-ts.o @@ -48,7 +49,9 @@ obj-$(CONFIG_TOUCHSCREEN_GOODIX_BERLIN_CORE) += goodix_berlin_core.o obj-$(CONFIG_TOUCHSCREEN_GOODIX_BERLIN_I2C) += goodix_berlin_i2c.o obj-$(CONFIG_TOUCHSCREEN_GOODIX_BERLIN_SPI) += goodix_berlin_spi.o obj-$(CONFIG_TOUCHSCREEN_HIDEEP) += hideep.o +obj-$(CONFIG_TOUCHSCREEN_HIMAX_HX852X) += himax_hx852x.o obj-$(CONFIG_TOUCHSCREEN_HYNITRON_CSTXXX) += hynitron_cstxxx.o +obj-$(CONFIG_TOUCHSCREEN_HYNITRON_CST816X) += hynitron-cst816x.o obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o obj-$(CONFIG_TOUCHSCREEN_ILITEK) += ilitek_ts_i2c.o obj-$(CONFIG_TOUCHSCREEN_IMAGIS) += imagis.o diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c index a0598e9c7aff..33c5eb522389 100644 --- a/drivers/input/touchscreen/ad7877.c +++ b/drivers/input/touchscreen/ad7877.c @@ -201,7 +201,7 @@ static int ad7877_read(struct spi_device *spi, u16 reg) struct ser_req *req; int status, ret; - req = kzalloc(sizeof *req, GFP_KERNEL); + req = kzalloc_obj(*req); if (!req) return -ENOMEM; @@ -232,7 +232,7 @@ static int ad7877_write(struct spi_device *spi, u16 reg, u16 val) struct ser_req *req; int status; - req = kzalloc(sizeof *req, GFP_KERNEL); + req = kzalloc_obj(*req); if (!req) return -ENOMEM; @@ -259,7 +259,7 @@ static int ad7877_read_adc(struct spi_device *spi, unsigned command) int sample; int i; - req = kzalloc(sizeof *req, GFP_KERNEL); + req = kzalloc_obj(*req); if (!req) return -ENOMEM; @@ -375,7 +375,7 @@ static inline void ad7877_ts_event_release(struct ad7877 *ts) static void ad7877_timer(struct timer_list *t) { - struct ad7877 *ts = from_timer(ts, t, timer); + struct ad7877 *ts = timer_container_of(ts, t, timer); unsigned long flags; spin_lock_irqsave(&ts->lock, flags); @@ -415,7 +415,7 @@ static void ad7877_disable(void *data) ts->disabled = true; disable_irq(ts->spi->irq); - if (del_timer_sync(&ts->timer)) + if (timer_delete_sync(&ts->timer)) ad7877_ts_event_release(ts); } diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c index e5d69bf2276e..4c448f39bf57 100644 --- a/drivers/input/touchscreen/ad7879.c +++ b/drivers/input/touchscreen/ad7879.c @@ -22,6 +22,7 @@ #include <linux/device.h> #include <linux/delay.h> +#include <linux/export.h> #include <linux/input.h> #include <linux/interrupt.h> #include <linux/irq.h> @@ -237,7 +238,7 @@ static void ad7879_ts_event_release(struct ad7879 *ts) static void ad7879_timer(struct timer_list *t) { - struct ad7879 *ts = from_timer(ts, t, timer); + struct ad7879 *ts = timer_container_of(ts, t, timer); ad7879_ts_event_release(ts); } @@ -273,7 +274,7 @@ static void __ad7879_disable(struct ad7879 *ts) AD7879_PM(AD7879_PM_SHUTDOWN); disable_irq(ts->irq); - if (del_timer_sync(&ts->timer)) + if (timer_delete_sync(&ts->timer)) ad7879_ts_event_release(ts); ad7879_write(ts, AD7879_REG_CTRL2, reg); @@ -444,10 +445,11 @@ static int ad7879_gpio_get_value(struct gpio_chip *chip, unsigned gpio) return !!(val & AD7879_GPIO_DATA); } -static void ad7879_gpio_set_value(struct gpio_chip *chip, - unsigned gpio, int value) +static int ad7879_gpio_set_value(struct gpio_chip *chip, unsigned int gpio, + int value) { struct ad7879 *ts = gpiochip_get_data(chip); + int ret; mutex_lock(&ts->mutex); if (value) @@ -455,8 +457,10 @@ static void ad7879_gpio_set_value(struct gpio_chip *chip, else ts->cmd_crtl2 &= ~AD7879_GPIO_DATA; - ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2); + ret = ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2); mutex_unlock(&ts->mutex); + + return ret; } static int ad7879_gpio_add(struct ad7879 *ts) diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index 67264c5b49cb..0963b1a78a0c 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -357,7 +357,7 @@ static int ads7846_read12_ser(struct device *dev, unsigned command) struct ser_req *req; int status; - req = kzalloc(sizeof *req, GFP_KERNEL); + req = kzalloc_obj(*req); if (!req) return -ENOMEM; @@ -442,7 +442,7 @@ static int ads7845_read12_ser(struct device *dev, unsigned command) struct ads7845_ser_req *req; int status; - req = kzalloc(sizeof *req, GFP_KERNEL); + req = kzalloc_obj(*req); if (!req) return -ENOMEM; diff --git a/drivers/input/touchscreen/apple_z2.c b/drivers/input/touchscreen/apple_z2.c new file mode 100644 index 000000000000..271ababf0ad5 --- /dev/null +++ b/drivers/input/touchscreen/apple_z2.c @@ -0,0 +1,481 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Apple Z2 touchscreen driver + * + * Copyright (C) The Asahi Linux Contributors + */ + +#include <linux/delay.h> +#include <linux/firmware.h> +#include <linux/input.h> +#include <linux/input/mt.h> +#include <linux/input/touchscreen.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/spi/spi.h> +#include <linux/unaligned.h> + +#define APPLE_Z2_NUM_FINGERS_OFFSET 16 +#define APPLE_Z2_FINGERS_OFFSET 24 +#define APPLE_Z2_TOUCH_STARTED 3 +#define APPLE_Z2_TOUCH_MOVED 4 +#define APPLE_Z2_CMD_READ_INTERRUPT_DATA 0xEB +#define APPLE_Z2_REPLY_INTERRUPT_DATA 0xE1 +#define APPLE_Z2_HBPP_CMD_BLOB 0x3001 +#define APPLE_Z2_FW_MAGIC 0x5746325A +#define LOAD_COMMAND_INIT_PAYLOAD 0 +#define LOAD_COMMAND_SEND_BLOB 1 +#define LOAD_COMMAND_SEND_CALIBRATION 2 +#define CAL_PROP_NAME "apple,z2-cal-blob" + +struct apple_z2 { + struct spi_device *spidev; + struct gpio_desc *reset_gpio; + struct input_dev *input_dev; + struct completion boot_irq; + bool booted; + int index_parity; + struct touchscreen_properties props; + const char *fw_name; + u8 *tx_buf; + u8 *rx_buf; +}; + +struct apple_z2_finger { + u8 finger; + u8 state; + __le16 unknown2; + __le16 abs_x; + __le16 abs_y; + __le16 rel_x; + __le16 rel_y; + __le16 tool_major; + __le16 tool_minor; + __le16 orientation; + __le16 touch_major; + __le16 touch_minor; + __le16 unused[2]; + __le16 pressure; + __le16 multi; +} __packed; + +struct apple_z2_hbpp_blob_hdr { + __le16 cmd; + __le16 len; + __le32 addr; + __le16 checksum; +}; + +struct apple_z2_fw_hdr { + __le32 magic; + __le32 version; +}; + +struct apple_z2_read_interrupt_cmd { + u8 cmd; + u8 counter; + u8 unused[12]; + __le16 checksum; +}; + +static void apple_z2_parse_touches(struct apple_z2 *z2, + const u8 *msg, size_t msg_len) +{ + int i; + int nfingers; + int slot; + int slot_valid; + struct apple_z2_finger *fingers; + + if (msg_len <= APPLE_Z2_NUM_FINGERS_OFFSET) + return; + nfingers = msg[APPLE_Z2_NUM_FINGERS_OFFSET]; + fingers = (struct apple_z2_finger *)(msg + APPLE_Z2_FINGERS_OFFSET); + for (i = 0; i < nfingers; i++) { + slot = input_mt_get_slot_by_key(z2->input_dev, fingers[i].finger); + if (slot < 0) { + dev_warn(&z2->spidev->dev, "unable to get slot for finger\n"); + continue; + } + slot_valid = fingers[i].state == APPLE_Z2_TOUCH_STARTED || + fingers[i].state == APPLE_Z2_TOUCH_MOVED; + input_mt_slot(z2->input_dev, slot); + if (!input_mt_report_slot_state(z2->input_dev, MT_TOOL_FINGER, slot_valid)) + continue; + touchscreen_report_pos(z2->input_dev, &z2->props, + le16_to_cpu(fingers[i].abs_x), + le16_to_cpu(fingers[i].abs_y), + true); + input_report_abs(z2->input_dev, ABS_MT_WIDTH_MAJOR, + le16_to_cpu(fingers[i].tool_major)); + input_report_abs(z2->input_dev, ABS_MT_WIDTH_MINOR, + le16_to_cpu(fingers[i].tool_minor)); + input_report_abs(z2->input_dev, ABS_MT_ORIENTATION, + le16_to_cpu(fingers[i].orientation)); + input_report_abs(z2->input_dev, ABS_MT_TOUCH_MAJOR, + le16_to_cpu(fingers[i].touch_major)); + input_report_abs(z2->input_dev, ABS_MT_TOUCH_MINOR, + le16_to_cpu(fingers[i].touch_minor)); + } + input_mt_sync_frame(z2->input_dev); + input_sync(z2->input_dev); +} + +static int apple_z2_read_packet(struct apple_z2 *z2) +{ + struct apple_z2_read_interrupt_cmd *len_cmd = (void *)z2->tx_buf; + struct spi_transfer xfer; + int error; + size_t pkt_len; + + memset(&xfer, 0, sizeof(xfer)); + len_cmd->cmd = APPLE_Z2_CMD_READ_INTERRUPT_DATA; + len_cmd->counter = z2->index_parity + 1; + len_cmd->checksum = + cpu_to_le16(APPLE_Z2_CMD_READ_INTERRUPT_DATA + len_cmd->counter); + z2->index_parity = !z2->index_parity; + xfer.tx_buf = z2->tx_buf; + xfer.rx_buf = z2->rx_buf; + xfer.len = sizeof(*len_cmd); + + error = spi_sync_transfer(z2->spidev, &xfer, 1); + if (error) + return error; + + if (z2->rx_buf[0] != APPLE_Z2_REPLY_INTERRUPT_DATA) + return 0; + + pkt_len = (get_unaligned_le16(z2->rx_buf + 1) + 8) & 0xfffffffc; + + error = spi_read(z2->spidev, z2->rx_buf, pkt_len); + if (error) + return error; + + apple_z2_parse_touches(z2, z2->rx_buf + 5, pkt_len - 5); + + return 0; +} + +static irqreturn_t apple_z2_irq(int irq, void *data) +{ + struct apple_z2 *z2 = data; + + if (unlikely(!z2->booted)) + complete(&z2->boot_irq); + else + apple_z2_read_packet(z2); + + return IRQ_HANDLED; +} + +/* Build calibration blob, caller is responsible for freeing the blob data. */ +static const u8 *apple_z2_build_cal_blob(struct apple_z2 *z2, + u32 address, size_t *size) +{ + u8 *cal_data; + int cal_size; + size_t blob_size; + u32 checksum; + u16 checksum_hdr; + int i; + struct apple_z2_hbpp_blob_hdr *hdr; + int error; + + if (!device_property_present(&z2->spidev->dev, CAL_PROP_NAME)) + return NULL; + + cal_size = device_property_count_u8(&z2->spidev->dev, CAL_PROP_NAME); + if (cal_size < 0) + return ERR_PTR(cal_size); + + blob_size = sizeof(struct apple_z2_hbpp_blob_hdr) + cal_size + sizeof(__le32); + u8 *blob_data __free(kfree) = kzalloc(blob_size, GFP_KERNEL); + if (!blob_data) + return ERR_PTR(-ENOMEM); + + hdr = (struct apple_z2_hbpp_blob_hdr *)blob_data; + hdr->cmd = cpu_to_le16(APPLE_Z2_HBPP_CMD_BLOB); + hdr->len = cpu_to_le16(round_up(cal_size, 4) / 4); + hdr->addr = cpu_to_le32(address); + + checksum_hdr = 0; + for (i = 2; i < 8; i++) + checksum_hdr += blob_data[i]; + hdr->checksum = cpu_to_le16(checksum_hdr); + + cal_data = blob_data + sizeof(struct apple_z2_hbpp_blob_hdr); + error = device_property_read_u8_array(&z2->spidev->dev, CAL_PROP_NAME, + cal_data, cal_size); + if (error) + return ERR_PTR(error); + + checksum = 0; + for (i = 0; i < cal_size; i++) + checksum += cal_data[i]; + put_unaligned_le32(checksum, cal_data + cal_size); + + *size = blob_size; + return no_free_ptr(blob_data); +} + +static int apple_z2_send_firmware_blob(struct apple_z2 *z2, const u8 *data, + u32 size, bool init) +{ + struct spi_message msg; + struct spi_transfer blob_xfer, ack_xfer; + int error; + + z2->tx_buf[0] = 0x1a; + z2->tx_buf[1] = 0xa1; + + spi_message_init(&msg); + memset(&blob_xfer, 0, sizeof(blob_xfer)); + memset(&ack_xfer, 0, sizeof(ack_xfer)); + + blob_xfer.tx_buf = data; + blob_xfer.len = size; + blob_xfer.bits_per_word = init ? 8 : 16; + spi_message_add_tail(&blob_xfer, &msg); + + ack_xfer.tx_buf = z2->tx_buf; + ack_xfer.len = 2; + spi_message_add_tail(&ack_xfer, &msg); + + reinit_completion(&z2->boot_irq); + error = spi_sync(z2->spidev, &msg); + if (error) + return error; + + /* Irq only happens sometimes, but the thing boots reliably nonetheless */ + wait_for_completion_timeout(&z2->boot_irq, msecs_to_jiffies(20)); + + return 0; +} + +static int apple_z2_upload_firmware(struct apple_z2 *z2) +{ + const struct apple_z2_fw_hdr *fw_hdr; + size_t fw_idx = sizeof(struct apple_z2_fw_hdr); + int error; + u32 load_cmd; + u32 address; + bool init; + size_t size; + + const struct firmware *fw __free(firmware) = NULL; + error = request_firmware(&fw, z2->fw_name, &z2->spidev->dev); + if (error) { + dev_err(&z2->spidev->dev, "unable to load firmware\n"); + return error; + } + + fw_hdr = (const struct apple_z2_fw_hdr *)fw->data; + if (le32_to_cpu(fw_hdr->magic) != APPLE_Z2_FW_MAGIC || le32_to_cpu(fw_hdr->version) != 1) { + dev_err(&z2->spidev->dev, "invalid firmware header\n"); + return -EINVAL; + } + + /* + * This will interrupt the upload half-way if the file is malformed + * As the device has no non-volatile storage to corrupt, and gets reset + * on boot anyway, this is fine. + */ + while (fw_idx < fw->size) { + if (fw->size - fw_idx < 8) { + dev_err(&z2->spidev->dev, "firmware malformed\n"); + return -EINVAL; + } + + load_cmd = le32_to_cpup((__force __le32 *)(fw->data + fw_idx)); + fw_idx += sizeof(u32); + if (load_cmd == LOAD_COMMAND_INIT_PAYLOAD || load_cmd == LOAD_COMMAND_SEND_BLOB) { + size = le32_to_cpup((__force __le32 *)(fw->data + fw_idx)); + fw_idx += sizeof(u32); + if (fw->size - fw_idx < size) { + dev_err(&z2->spidev->dev, "firmware malformed\n"); + return -EINVAL; + } + init = load_cmd == LOAD_COMMAND_INIT_PAYLOAD; + error = apple_z2_send_firmware_blob(z2, fw->data + fw_idx, + size, init); + if (error) + return error; + fw_idx += size; + } else if (load_cmd == LOAD_COMMAND_SEND_CALIBRATION) { + address = le32_to_cpup((__force __le32 *)(fw->data + fw_idx)); + fw_idx += sizeof(u32); + + const u8 *data __free(kfree) = + apple_z2_build_cal_blob(z2, address, &size); + if (IS_ERR(data)) + return PTR_ERR(data); + + if (data) { + error = apple_z2_send_firmware_blob(z2, data, size, false); + if (error) + return error; + } + } else { + dev_err(&z2->spidev->dev, "firmware malformed\n"); + return -EINVAL; + } + fw_idx = round_up(fw_idx, 4); + } + + + z2->booted = true; + apple_z2_read_packet(z2); + return 0; +} + +static int apple_z2_boot(struct apple_z2 *z2) +{ + int error; + + reinit_completion(&z2->boot_irq); + enable_irq(z2->spidev->irq); + gpiod_set_value(z2->reset_gpio, 0); + if (!wait_for_completion_timeout(&z2->boot_irq, msecs_to_jiffies(20))) + return -ETIMEDOUT; + + error = apple_z2_upload_firmware(z2); + if (error) { + gpiod_set_value(z2->reset_gpio, 1); + disable_irq(z2->spidev->irq); + return error; + } + + return 0; +} + +static int apple_z2_probe(struct spi_device *spi) +{ + struct device *dev = &spi->dev; + struct apple_z2 *z2; + int error; + + z2 = devm_kzalloc(dev, sizeof(*z2), GFP_KERNEL); + if (!z2) + return -ENOMEM; + + z2->tx_buf = devm_kzalloc(dev, sizeof(struct apple_z2_read_interrupt_cmd), GFP_KERNEL); + if (!z2->tx_buf) + return -ENOMEM; + /* 4096 will end up being rounded up to 8192 due to devres header */ + z2->rx_buf = devm_kzalloc(dev, 4000, GFP_KERNEL); + if (!z2->rx_buf) + return -ENOMEM; + + z2->spidev = spi; + init_completion(&z2->boot_irq); + spi_set_drvdata(spi, z2); + + /* Reset the device on boot */ + z2->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(z2->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(z2->reset_gpio), "unable to get reset\n"); + + error = devm_request_threaded_irq(dev, z2->spidev->irq, NULL, apple_z2_irq, + IRQF_ONESHOT | IRQF_NO_AUTOEN, + "apple-z2-irq", z2); + if (error) + return dev_err_probe(dev, error, "unable to request irq\n"); + + error = device_property_read_string(dev, "firmware-name", &z2->fw_name); + if (error) + return dev_err_probe(dev, error, "unable to get firmware name\n"); + + z2->input_dev = devm_input_allocate_device(dev); + if (!z2->input_dev) + return -ENOMEM; + + z2->input_dev->name = (char *)spi_get_device_id(spi)->driver_data; + z2->input_dev->phys = "apple_z2"; + z2->input_dev->id.bustype = BUS_SPI; + + /* Allocate the axes before setting from DT */ + input_set_abs_params(z2->input_dev, ABS_MT_POSITION_X, 0, 0, 0, 0); + input_set_abs_params(z2->input_dev, ABS_MT_POSITION_Y, 0, 0, 0, 0); + touchscreen_parse_properties(z2->input_dev, true, &z2->props); + input_abs_set_res(z2->input_dev, ABS_MT_POSITION_X, 100); + input_abs_set_res(z2->input_dev, ABS_MT_POSITION_Y, 100); + input_set_abs_params(z2->input_dev, ABS_MT_WIDTH_MAJOR, 0, 65535, 0, 0); + input_set_abs_params(z2->input_dev, ABS_MT_WIDTH_MINOR, 0, 65535, 0, 0); + input_set_abs_params(z2->input_dev, ABS_MT_TOUCH_MAJOR, 0, 65535, 0, 0); + input_set_abs_params(z2->input_dev, ABS_MT_TOUCH_MINOR, 0, 65535, 0, 0); + input_set_abs_params(z2->input_dev, ABS_MT_ORIENTATION, -32768, 32767, 0, 0); + + error = input_mt_init_slots(z2->input_dev, 256, INPUT_MT_DIRECT); + if (error) + return dev_err_probe(dev, error, "unable to initialize multitouch slots\n"); + + error = input_register_device(z2->input_dev); + if (error) + return dev_err_probe(dev, error, "unable to register input device\n"); + + /* Wait for device reset to finish */ + usleep_range(5000, 10000); + error = apple_z2_boot(z2); + if (error) + return error; + + return 0; +} + +static void apple_z2_shutdown(struct spi_device *spi) +{ + struct apple_z2 *z2 = spi_get_drvdata(spi); + + disable_irq(z2->spidev->irq); + gpiod_direction_output(z2->reset_gpio, 1); + z2->booted = false; +} + +static int apple_z2_suspend(struct device *dev) +{ + apple_z2_shutdown(to_spi_device(dev)); + + return 0; +} + +static int apple_z2_resume(struct device *dev) +{ + struct apple_z2 *z2 = spi_get_drvdata(to_spi_device(dev)); + + return apple_z2_boot(z2); +} + +static DEFINE_SIMPLE_DEV_PM_OPS(apple_z2_pm, apple_z2_suspend, apple_z2_resume); + +static const struct of_device_id apple_z2_of_match[] = { + { .compatible = "apple,j293-touchbar" }, + { .compatible = "apple,j493-touchbar" }, + {} +}; +MODULE_DEVICE_TABLE(of, apple_z2_of_match); + +static struct spi_device_id apple_z2_of_id[] = { + { .name = "j293-touchbar", .driver_data = (kernel_ulong_t)"MacBookPro17,1 Touch Bar" }, + { .name = "j493-touchbar", .driver_data = (kernel_ulong_t)"Mac14,7 Touch Bar" }, + {} +}; +MODULE_DEVICE_TABLE(spi, apple_z2_of_id); + +static struct spi_driver apple_z2_driver = { + .driver = { + .name = "apple-z2", + .pm = pm_sleep_ptr(&apple_z2_pm), + .of_match_table = apple_z2_of_match, + .probe_type = PROBE_PREFER_ASYNCHRONOUS, + }, + .id_table = apple_z2_of_id, + .probe = apple_z2_probe, + .remove = apple_z2_shutdown, +}; + +module_spi_driver(apple_z2_driver); + +MODULE_LICENSE("GPL"); +MODULE_FIRMWARE("apple/dfrmtfw-*.bin"); +MODULE_DESCRIPTION("Apple Z2 touchscreens driver"); diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 3ddabc5a2c99..dd0544cc1bc1 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -19,6 +19,7 @@ #include <linux/firmware.h> #include <linux/i2c.h> #include <linux/input/mt.h> +#include <linux/input/touchscreen.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/of.h> @@ -355,6 +356,8 @@ struct mxt_data { enum mxt_suspend_mode suspend_mode; u32 wakeup_method; + + struct touchscreen_properties prop; }; struct mxt_vb2_buffer { @@ -888,8 +891,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message) /* Touch active */ input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 1); - input_report_abs(input_dev, ABS_MT_POSITION_X, x); - input_report_abs(input_dev, ABS_MT_POSITION_Y, y); + touchscreen_report_pos(input_dev, &data->prop, x, y, true); input_report_abs(input_dev, ABS_MT_PRESSURE, amplitude); input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area); } else { @@ -1010,8 +1012,7 @@ static void mxt_proc_t100_message(struct mxt_data *data, u8 *message) id, type, x, y, major, pressure, orientation); input_mt_report_slot_state(input_dev, tool, 1); - input_report_abs(input_dev, ABS_MT_POSITION_X, x); - input_report_abs(input_dev, ABS_MT_POSITION_Y, y); + touchscreen_report_pos(input_dev, &data->prop, x, y, true); input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, major); input_report_abs(input_dev, ABS_MT_PRESSURE, pressure); input_report_abs(input_dev, ABS_MT_DISTANCE, distance); @@ -2212,6 +2213,8 @@ static int mxt_initialize_input_device(struct mxt_data *data) 0, 255, 0, 0); } + touchscreen_parse_properties(input_dev, true, &data->prop); + /* For T15 and T97 Key Array */ if (data->T15_reportid_min || data->T97_reportid_min) { for (i = 0; i < data->t15_num_keys; i++) @@ -2535,8 +2538,6 @@ fault: static const struct vb2_ops mxt_queue_ops = { .queue_setup = mxt_queue_setup, .buf_queue = mxt_buffer_queue, - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, }; static const struct vb2_queue mxt_queue = { @@ -3319,7 +3320,7 @@ static int mxt_probe(struct i2c_client *client) if (data->reset_gpio) { /* Wait a while and then de-assert the RESET GPIO line */ msleep(MXT_RESET_GPIO_TIME); - gpiod_set_value(data->reset_gpio, 0); + gpiod_set_value_cansleep(data->reset_gpio, 0); msleep(MXT_RESET_INVALID_CHG); } diff --git a/drivers/input/touchscreen/bu21029_ts.c b/drivers/input/touchscreen/bu21029_ts.c index 686d0a6b1570..64f474e67312 100644 --- a/drivers/input/touchscreen/bu21029_ts.c +++ b/drivers/input/touchscreen/bu21029_ts.c @@ -209,7 +209,8 @@ static void bu21029_touch_report(struct bu21029_ts_data *bu21029, const u8 *buf) static void bu21029_touch_release(struct timer_list *t) { - struct bu21029_ts_data *bu21029 = from_timer(bu21029, t, timer); + struct bu21029_ts_data *bu21029 = timer_container_of(bu21029, t, + timer); input_report_abs(bu21029->in_dev, ABS_PRESSURE, 0); input_report_key(bu21029->in_dev, BTN_TOUCH, 0); @@ -325,7 +326,7 @@ static void bu21029_stop_chip(struct input_dev *dev) struct bu21029_ts_data *bu21029 = input_get_drvdata(dev); disable_irq(bu21029->client->irq); - del_timer_sync(&bu21029->timer); + timer_delete_sync(&bu21029->timer); bu21029_put_chip_in_reset(bu21029); regulator_disable(bu21029->vdd); diff --git a/drivers/input/touchscreen/cyttsp5.c b/drivers/input/touchscreen/cyttsp5.c index eafe5a9b8964..47f4271395a6 100644 --- a/drivers/input/touchscreen/cyttsp5.c +++ b/drivers/input/touchscreen/cyttsp5.c @@ -580,7 +580,7 @@ static int cyttsp5_power_control(struct cyttsp5 *ts, bool on) int rc; SET_CMD_REPORT_TYPE(cmd[0], 0); - SET_CMD_REPORT_ID(cmd[0], HID_POWER_SLEEP); + SET_CMD_REPORT_ID(cmd[0], state); SET_CMD_OPCODE(cmd[1], HID_CMD_SET_POWER); rc = cyttsp5_write(ts, HID_COMMAND_REG, cmd, sizeof(cmd)); @@ -870,13 +870,16 @@ static int cyttsp5_probe(struct device *dev, struct regmap *regmap, int irq, ts->input->phys = ts->phys; input_set_drvdata(ts->input, ts); - /* Reset the gpio to be in a reset state */ + /* Assert gpio to be in a reset state */ ts->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(ts->reset_gpio)) { error = PTR_ERR(ts->reset_gpio); dev_err(dev, "Failed to request reset gpio, error %d\n", error); return error; } + + fsleep(10); /* Ensure long-enough reset pulse (minimum 10us). */ + gpiod_set_value_cansleep(ts->reset_gpio, 0); /* Need a delay to have device up */ @@ -920,8 +923,8 @@ static int cyttsp5_i2c_probe(struct i2c_client *client) regmap = devm_regmap_init_i2c(client, &config); if (IS_ERR(regmap)) { - dev_err(&client->dev, "regmap allocation failed: %ld\n", - PTR_ERR(regmap)); + dev_err(&client->dev, "regmap allocation failed: %pe\n", + regmap); return PTR_ERR(regmap); } diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c index b8ce6012364c..9e729910fbc8 100644 --- a/drivers/input/touchscreen/cyttsp_core.c +++ b/drivers/input/touchscreen/cyttsp_core.c @@ -14,6 +14,7 @@ */ #include <linux/delay.h> +#include <linux/export.h> #include <linux/input.h> #include <linux/input/mt.h> #include <linux/input/touchscreen.h> diff --git a/drivers/input/touchscreen/da9052_tsi.c b/drivers/input/touchscreen/da9052_tsi.c index c2d3252f8466..a8e3d85eece7 100644 --- a/drivers/input/touchscreen/da9052_tsi.c +++ b/drivers/input/touchscreen/da9052_tsi.c @@ -232,7 +232,7 @@ static int da9052_ts_probe(struct platform_device *pdev) if (!da9052) return -EINVAL; - tsi = kzalloc(sizeof(*tsi), GFP_KERNEL); + tsi = kzalloc_obj(*tsi); input_dev = input_allocate_device(); if (!tsi || !input_dev) { error = -ENOMEM; diff --git a/drivers/input/touchscreen/dynapro.c b/drivers/input/touchscreen/dynapro.c index fe626a226b85..943ba8c2fb6c 100644 --- a/drivers/input/touchscreen/dynapro.c +++ b/drivers/input/touchscreen/dynapro.c @@ -110,7 +110,7 @@ static int dynapro_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - pdynapro = kzalloc(sizeof(*pdynapro), GFP_KERNEL); + pdynapro = kzalloc_obj(*pdynapro); input_dev = input_allocate_device(); if (!pdynapro || !input_dev) { err = -ENOMEM; @@ -119,8 +119,8 @@ static int dynapro_connect(struct serio *serio, struct serio_driver *drv) pdynapro->serio = serio; pdynapro->dev = input_dev; - snprintf(pdynapro->phys, sizeof(pdynapro->phys), - "%s/input0", serio->phys); + scnprintf(pdynapro->phys, sizeof(pdynapro->phys), + "%s/input0", serio->phys); input_dev->name = "Dynapro Serial TouchScreen"; input_dev->phys = pdynapro->phys; diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index 0d7bf18e2508..d0ab644be006 100644 --- a/drivers/input/touchscreen/edt-ft5x06.c +++ b/drivers/input/touchscreen/edt-ft5x06.c @@ -120,7 +120,6 @@ struct edt_ft5x06_ts_data { struct regmap *regmap; #if defined(CONFIG_DEBUG_FS) - struct dentry *debug_dir; u8 *raw_buffer; size_t raw_bufsize; #endif @@ -815,23 +814,21 @@ static const struct file_operations debugfs_raw_data_fops = { .read = edt_ft5x06_debugfs_raw_data_read, }; -static void edt_ft5x06_ts_prepare_debugfs(struct edt_ft5x06_ts_data *tsdata, - const char *debugfs_name) +static void edt_ft5x06_ts_prepare_debugfs(struct edt_ft5x06_ts_data *tsdata) { - tsdata->debug_dir = debugfs_create_dir(debugfs_name, NULL); + struct dentry *debug_dir = tsdata->client->debugfs; - debugfs_create_u16("num_x", S_IRUSR, tsdata->debug_dir, &tsdata->num_x); - debugfs_create_u16("num_y", S_IRUSR, tsdata->debug_dir, &tsdata->num_y); + debugfs_create_u16("num_x", S_IRUSR, debug_dir, &tsdata->num_x); + debugfs_create_u16("num_y", S_IRUSR, debug_dir, &tsdata->num_y); debugfs_create_file("mode", S_IRUSR | S_IWUSR, - tsdata->debug_dir, tsdata, &debugfs_mode_fops); + debug_dir, tsdata, &debugfs_mode_fops); debugfs_create_file("raw_data", S_IRUSR, - tsdata->debug_dir, tsdata, &debugfs_raw_data_fops); + debug_dir, tsdata, &debugfs_raw_data_fops); } static void edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata) { - debugfs_remove_recursive(tsdata->debug_dir); kfree(tsdata->raw_buffer); } @@ -842,8 +839,7 @@ static int edt_ft5x06_factory_mode(struct edt_ft5x06_ts_data *tsdata) return -ENOSYS; } -static void edt_ft5x06_ts_prepare_debugfs(struct edt_ft5x06_ts_data *tsdata, - const char *debugfs_name) +static void edt_ft5x06_ts_prepare_debugfs(struct edt_ft5x06_ts_data *tsdata) { } @@ -1349,7 +1345,7 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client) if (error) return error; - edt_ft5x06_ts_prepare_debugfs(tsdata, dev_driver_string(&client->dev)); + edt_ft5x06_ts_prepare_debugfs(tsdata); dev_dbg(&client->dev, "EDT FT5x06 initialized: IRQ %d, WAKE pin %d, Reset pin %d.\n", @@ -1479,6 +1475,10 @@ static const struct edt_i2c_chip_data edt_ft5x06_data = { .max_support_points = 5, }; +static const struct edt_i2c_chip_data edt_ft3518_data = { + .max_support_points = 10, +}; + static const struct edt_i2c_chip_data edt_ft5452_data = { .max_support_points = 5, }; @@ -1495,6 +1495,10 @@ static const struct edt_i2c_chip_data edt_ft8201_data = { .max_support_points = 10, }; +static const struct edt_i2c_chip_data edt_ft8716_data = { + .max_support_points = 10, +}; + static const struct edt_i2c_chip_data edt_ft8719_data = { .max_support_points = 10, }; @@ -1503,10 +1507,12 @@ static const struct i2c_device_id edt_ft5x06_ts_id[] = { { .name = "edt-ft5x06", .driver_data = (long)&edt_ft5x06_data }, { .name = "edt-ft5506", .driver_data = (long)&edt_ft5506_data }, { .name = "ev-ft5726", .driver_data = (long)&edt_ft5506_data }, + { .name = "ft3518", .driver_data = (long)&edt_ft3518_data }, { .name = "ft5452", .driver_data = (long)&edt_ft5452_data }, /* Note no edt- prefix for compatibility with the ft6236.c driver */ { .name = "ft6236", .driver_data = (long)&edt_ft6236_data }, { .name = "ft8201", .driver_data = (long)&edt_ft8201_data }, + { .name = "ft8716", .driver_data = (long)&edt_ft8716_data }, { .name = "ft8719", .driver_data = (long)&edt_ft8719_data }, { /* sentinel */ } }; @@ -1518,11 +1524,13 @@ static const struct of_device_id edt_ft5x06_of_match[] = { { .compatible = "edt,edt-ft5406", .data = &edt_ft5x06_data }, { .compatible = "edt,edt-ft5506", .data = &edt_ft5506_data }, { .compatible = "evervision,ev-ft5726", .data = &edt_ft5506_data }, + { .compatible = "focaltech,ft3518", .data = &edt_ft3518_data }, { .compatible = "focaltech,ft5426", .data = &edt_ft5506_data }, { .compatible = "focaltech,ft5452", .data = &edt_ft5452_data }, /* Note focaltech vendor prefix for compatibility with ft6236.c */ { .compatible = "focaltech,ft6236", .data = &edt_ft6236_data }, { .compatible = "focaltech,ft8201", .data = &edt_ft8201_data }, + { .compatible = "focaltech,ft8716", .data = &edt_ft8716_data }, { .compatible = "focaltech,ft8719", .data = &edt_ft8719_data }, { /* sentinel */ } }; diff --git a/drivers/input/touchscreen/egalax_ts_serial.c b/drivers/input/touchscreen/egalax_ts_serial.c index 07a4aa1c19bb..e04ea1fea4ad 100644 --- a/drivers/input/touchscreen/egalax_ts_serial.c +++ b/drivers/input/touchscreen/egalax_ts_serial.c @@ -99,7 +99,7 @@ static int egalax_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int error; - egalax = kzalloc(sizeof(*egalax), GFP_KERNEL); + egalax = kzalloc_obj(*egalax); input_dev = input_allocate_device(); if (!egalax || !input_dev) { error = -ENOMEM; @@ -108,8 +108,7 @@ static int egalax_connect(struct serio *serio, struct serio_driver *drv) egalax->serio = serio; egalax->input = input_dev; - snprintf(egalax->phys, sizeof(egalax->phys), - "%s/input0", serio->phys); + scnprintf(egalax->phys, sizeof(egalax->phys), "%s/input0", serio->phys); input_dev->name = "EETI eGalaxTouch Serial TouchScreen"; input_dev->phys = egalax->phys; diff --git a/drivers/input/touchscreen/elo.c b/drivers/input/touchscreen/elo.c index ad209e6e82a6..434b9b47e964 100644 --- a/drivers/input/touchscreen/elo.c +++ b/drivers/input/touchscreen/elo.c @@ -307,7 +307,7 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - elo = kzalloc(sizeof(*elo), GFP_KERNEL); + elo = kzalloc_obj(*elo); input_dev = input_allocate_device(); if (!elo || !input_dev) { err = -ENOMEM; @@ -320,7 +320,7 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv) elo->expected_packet = ELO10_TOUCH_PACKET; mutex_init(&elo->cmd_mutex); init_completion(&elo->cmd_done); - snprintf(elo->phys, sizeof(elo->phys), "%s/input0", serio->phys); + scnprintf(elo->phys, sizeof(elo->phys), "%s/input0", serio->phys); input_dev->name = "Elo Serial TouchScreen"; input_dev->phys = elo->phys; diff --git a/drivers/input/touchscreen/exc3000.c b/drivers/input/touchscreen/exc3000.c index fdda8412b164..28da7ba55a4b 100644 --- a/drivers/input/touchscreen/exc3000.c +++ b/drivers/input/touchscreen/exc3000.c @@ -105,7 +105,7 @@ static void exc3000_report_slots(struct input_dev *input, static void exc3000_timer(struct timer_list *t) { - struct exc3000_data *data = from_timer(data, t, timer); + struct exc3000_data *data = timer_container_of(data, t, timer); input_mt_sync_frame(data->input); input_sync(data->input); @@ -174,7 +174,7 @@ static int exc3000_handle_mt_event(struct exc3000_data *data) /* * We read full state successfully, no contacts will be "stuck". */ - del_timer_sync(&data->timer); + timer_delete_sync(&data->timer); while (total_slots > 0) { int slots = min(total_slots, EXC3000_SLOTS_PER_FRAME); diff --git a/drivers/input/touchscreen/fsl-imx25-tcq.c b/drivers/input/touchscreen/fsl-imx25-tcq.c index a32708652d10..ff270b3b8572 100644 --- a/drivers/input/touchscreen/fsl-imx25-tcq.c +++ b/drivers/input/touchscreen/fsl-imx25-tcq.c @@ -39,7 +39,6 @@ struct mx25_tcq_priv { }; static const struct regmap_config mx25_tcq_regconfig = { - .fast_io = true, .max_register = 0x5c, .reg_bits = 32, .val_bits = 32, diff --git a/drivers/input/touchscreen/fujitsu_ts.c b/drivers/input/touchscreen/fujitsu_ts.c index 1a3e14ea2e08..8ed592294b17 100644 --- a/drivers/input/touchscreen/fujitsu_ts.c +++ b/drivers/input/touchscreen/fujitsu_ts.c @@ -99,7 +99,7 @@ static int fujitsu_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - fujitsu = kzalloc(sizeof(*fujitsu), GFP_KERNEL); + fujitsu = kzalloc_obj(*fujitsu); input_dev = input_allocate_device(); if (!fujitsu || !input_dev) { err = -ENOMEM; @@ -108,8 +108,7 @@ static int fujitsu_connect(struct serio *serio, struct serio_driver *drv) fujitsu->serio = serio; fujitsu->dev = input_dev; - snprintf(fujitsu->phys, sizeof(fujitsu->phys), - "%s/input0", serio->phys); + scnprintf(fujitsu->phys, sizeof(fujitsu->phys), "%s/input0", serio->phys); input_dev->name = "Fujitsu Serial Touchscreen"; input_dev->phys = fujitsu->phys; diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c index a3e8a51c9144..f8798d11ec03 100644 --- a/drivers/input/touchscreen/goodix.c +++ b/drivers/input/touchscreen/goodix.c @@ -44,9 +44,11 @@ #define GOODIX_HAVE_KEY BIT(4) #define GOODIX_BUFFER_STATUS_TIMEOUT 20 -#define RESOLUTION_LOC 1 -#define MAX_CONTACTS_LOC 5 -#define TRIGGER_LOC 6 +#define RESOLUTION_LOC 1 +#define MAX_CONTACTS_LOC 5 +#define TRIGGER_LOC 6 + +#define GOODIX_POLL_INTERVAL_MS 17 /* 17ms = 60fps */ /* Our special handling for GPIO accesses through ACPI is x86 specific */ #if defined CONFIG_X86 && defined CONFIG_ACPI @@ -497,6 +499,14 @@ sync: input_sync(ts->input_dev); } +static void goodix_ts_work_i2c_poll(struct input_dev *input) +{ + struct goodix_ts_data *ts = input_get_drvdata(input); + + goodix_process_events(ts); + goodix_i2c_write_u8(ts->client, GOODIX_READ_COOR_ADDR, 0); +} + /** * goodix_ts_irq_handler - The IRQ handler * @@ -513,13 +523,29 @@ static irqreturn_t goodix_ts_irq_handler(int irq, void *dev_id) return IRQ_HANDLED; } +static void goodix_enable_irq(struct goodix_ts_data *ts) +{ + if (ts->client->irq) + enable_irq(ts->client->irq); +} + +static void goodix_disable_irq(struct goodix_ts_data *ts) +{ + if (ts->client->irq) + disable_irq(ts->client->irq); +} + static void goodix_free_irq(struct goodix_ts_data *ts) { - devm_free_irq(&ts->client->dev, ts->client->irq, ts); + if (ts->client->irq) + devm_free_irq(&ts->client->dev, ts->client->irq, ts); } static int goodix_request_irq(struct goodix_ts_data *ts) { + if (!ts->client->irq) + return 0; + return devm_request_threaded_irq(&ts->client->dev, ts->client->irq, NULL, goodix_ts_irq_handler, ts->irq_flags, ts->client->name, ts); @@ -770,17 +796,6 @@ int goodix_reset_no_int_sync(struct goodix_ts_data *ts) usleep_range(6000, 10000); /* T4: > 5ms */ - /* - * Put the reset pin back in to input / high-impedance mode to save - * power. Only do this in the non ACPI case since some ACPI boards - * don't have a pull-up, so there the reset pin must stay active-high. - */ - if (ts->irq_pin_access_method == IRQ_PIN_ACCESS_GPIO) { - error = gpiod_direction_input(ts->gpiod_rst); - if (error) - goto error; - } - return 0; error: @@ -931,14 +946,6 @@ static int goodix_add_acpi_gpio_mappings(struct goodix_ts_data *ts) return -EINVAL; } - /* - * Normally we put the reset pin in input / high-impedance mode to save - * power. But some x86/ACPI boards don't have a pull-up, so for the ACPI - * case, leave the pin as is. This results in the pin not being touched - * at all on x86/ACPI boards, except when needed for error-recover. - */ - ts->gpiod_rst_flags = GPIOD_ASIS; - return devm_acpi_dev_add_driver_gpios(dev, gpio_mapping); } #else @@ -963,12 +970,6 @@ static int goodix_get_gpio_config(struct goodix_ts_data *ts) return -EINVAL; dev = &ts->client->dev; - /* - * By default we request the reset pin as input, leaving it in - * high-impedance when not resetting the controller to save power. - */ - ts->gpiod_rst_flags = GPIOD_IN; - ts->avdd28 = devm_regulator_get(dev, "AVDD28"); if (IS_ERR(ts->avdd28)) return dev_err_probe(dev, PTR_ERR(ts->avdd28), "Failed to get AVDD28 regulator\n"); @@ -993,7 +994,7 @@ retry_get_irq_gpio: ts->gpiod_int = gpiod; /* Get the reset line GPIO pin number */ - gpiod = devm_gpiod_get_optional(dev, GOODIX_GPIO_RST_NAME, ts->gpiod_rst_flags); + gpiod = devm_gpiod_get_optional(dev, GOODIX_GPIO_RST_NAME, GPIOD_ASIS); if (IS_ERR(gpiod)) return dev_err_probe(dev, PTR_ERR(gpiod), "Failed to get %s GPIO\n", GOODIX_GPIO_RST_NAME); @@ -1219,6 +1220,18 @@ retry_read_config: return error; } + input_set_drvdata(ts->input_dev, ts); + + if (!ts->client->irq) { + error = input_setup_polling(ts->input_dev, goodix_ts_work_i2c_poll); + if (error) { + dev_err(&ts->client->dev, + "could not set up polling mode, %d\n", error); + return error; + } + input_set_poll_interval(ts->input_dev, GOODIX_POLL_INTERVAL_MS); + } + error = input_register_device(ts->input_dev); if (error) { dev_err(&ts->client->dev, @@ -1422,7 +1435,7 @@ static int goodix_suspend(struct device *dev) /* We need gpio pins to suspend/resume */ if (ts->irq_pin_access_method == IRQ_PIN_ACCESS_NONE) { - disable_irq(client->irq); + goodix_disable_irq(ts); return 0; } @@ -1466,7 +1479,7 @@ static int goodix_resume(struct device *dev) int error; if (ts->irq_pin_access_method == IRQ_PIN_ACCESS_NONE) { - enable_irq(client->irq); + goodix_enable_irq(ts); return 0; } @@ -1519,6 +1532,7 @@ MODULE_DEVICE_TABLE(i2c, goodix_ts_id); static const struct acpi_device_id goodix_acpi_match[] = { { "GDIX1001", 0 }, { "GDIX1002", 0 }, + { "GDIX1003", 0 }, { "GDX9110", 0 }, { } }; diff --git a/drivers/input/touchscreen/goodix.h b/drivers/input/touchscreen/goodix.h index 87797cc88b32..0d1e8a8d2cba 100644 --- a/drivers/input/touchscreen/goodix.h +++ b/drivers/input/touchscreen/goodix.h @@ -88,7 +88,6 @@ struct goodix_ts_data { struct gpio_desc *gpiod_rst; int gpio_count; int gpio_int_idx; - enum gpiod_flags gpiod_rst_flags; char id[GOODIX_ID_MAX_LEN + 1]; char cfg_name[64]; u16 version; diff --git a/drivers/input/touchscreen/goodix_berlin.h b/drivers/input/touchscreen/goodix_berlin.h index 38b6f9ddbdef..d8bbd4853206 100644 --- a/drivers/input/touchscreen/goodix_berlin.h +++ b/drivers/input/touchscreen/goodix_berlin.h @@ -12,12 +12,26 @@ #include <linux/pm.h> +#define GOODIX_BERLIN_FW_VERSION_INFO_ADDR_A 0x1000C +#define GOODIX_BERLIN_FW_VERSION_INFO_ADDR_D 0x10014 + +#define GOODIX_BERLIN_IC_INFO_ADDR_A 0x10068 +#define GOODIX_BERLIN_IC_INFO_ADDR_D 0x10070 + +struct goodix_berlin_ic_data { + int fw_version_info_addr; + int ic_info_addr; + ssize_t read_dummy_len; + ssize_t read_prefix_len; +}; + struct device; struct input_id; struct regmap; int goodix_berlin_probe(struct device *dev, int irq, const struct input_id *id, - struct regmap *regmap); + struct regmap *regmap, + const struct goodix_berlin_ic_data *ic_data); extern const struct dev_pm_ops goodix_berlin_pm_ops; extern const struct attribute_group *goodix_berlin_groups[]; diff --git a/drivers/input/touchscreen/goodix_berlin_core.c b/drivers/input/touchscreen/goodix_berlin_core.c index f7ea443b152e..83f28b870531 100644 --- a/drivers/input/touchscreen/goodix_berlin_core.c +++ b/drivers/input/touchscreen/goodix_berlin_core.c @@ -12,7 +12,7 @@ * to the previous generations. * * Currently the driver only handles Multitouch events with already - * programmed firmware and "config" for "Revision D" Berlin IC. + * programmed firmware and "config" for "Revision A/D" Berlin IC. * * Support is missing for: * - ESD Management @@ -20,14 +20,16 @@ * - "Config" update/flashing * - Stylus Events * - Gesture Events - * - Support for older revisions (A & B) + * - Support for revision B */ #include <linux/bitfield.h> +#include <linux/export.h> #include <linux/gpio/consumer.h> #include <linux/input.h> #include <linux/input/mt.h> #include <linux/input/touchscreen.h> +#include <linux/property.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/sizes.h> @@ -53,10 +55,8 @@ #define GOODIX_BERLIN_DEV_CONFIRM_VAL 0xAA #define GOODIX_BERLIN_BOOTOPTION_ADDR 0x10000 -#define GOODIX_BERLIN_FW_VERSION_INFO_ADDR 0x10014 #define GOODIX_BERLIN_IC_INFO_MAX_LEN SZ_1K -#define GOODIX_BERLIN_IC_INFO_ADDR 0x10070 #define GOODIX_BERLIN_CHECKSUM_SIZE sizeof(u16) @@ -175,6 +175,8 @@ struct goodix_berlin_core { /* Runtime parameters extracted from IC_INFO buffer */ u32 touch_data_addr; + const struct goodix_berlin_ic_data *ic_data; + struct goodix_berlin_event event; }; @@ -299,7 +301,7 @@ static int goodix_berlin_read_version(struct goodix_berlin_core *cd) { int error; - error = regmap_raw_read(cd->regmap, GOODIX_BERLIN_FW_VERSION_INFO_ADDR, + error = regmap_raw_read(cd->regmap, cd->ic_data->fw_version_info_addr, &cd->fw_version, sizeof(cd->fw_version)); if (error) { dev_err(cd->dev, "error reading fw version, %d\n", error); @@ -367,7 +369,7 @@ static int goodix_berlin_get_ic_info(struct goodix_berlin_core *cd) if (!afe_data) return -ENOMEM; - error = regmap_raw_read(cd->regmap, GOODIX_BERLIN_IC_INFO_ADDR, + error = regmap_raw_read(cd->regmap, cd->ic_data->ic_info_addr, &length_raw, sizeof(length_raw)); if (error) { dev_err(cd->dev, "failed get ic info length, %d\n", error); @@ -380,8 +382,8 @@ static int goodix_berlin_get_ic_info(struct goodix_berlin_core *cd) return -EINVAL; } - error = regmap_raw_read(cd->regmap, GOODIX_BERLIN_IC_INFO_ADDR, - afe_data, length); + error = regmap_raw_read(cd->regmap, cd->ic_data->ic_info_addr, afe_data, + length); if (error) { dev_err(cd->dev, "failed get ic info data, %d\n", error); return error; @@ -706,7 +708,7 @@ static const struct bin_attribute *const goodix_berlin_bin_attrs[] = { }; static const struct attribute_group goodix_berlin_attr_group = { - .bin_attrs_new = goodix_berlin_bin_attrs, + .bin_attrs = goodix_berlin_bin_attrs, }; const struct attribute_group *goodix_berlin_groups[] = { @@ -716,7 +718,8 @@ const struct attribute_group *goodix_berlin_groups[] = { EXPORT_SYMBOL_GPL(goodix_berlin_groups); int goodix_berlin_probe(struct device *dev, int irq, const struct input_id *id, - struct regmap *regmap) + struct regmap *regmap, + const struct goodix_berlin_ic_data *ic_data) { struct goodix_berlin_core *cd; int error; @@ -733,6 +736,7 @@ int goodix_berlin_probe(struct device *dev, int irq, const struct input_id *id, cd->dev = dev; cd->regmap = regmap; cd->irq = irq; + cd->ic_data = ic_data; cd->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(cd->reset_gpio)) diff --git a/drivers/input/touchscreen/goodix_berlin_i2c.c b/drivers/input/touchscreen/goodix_berlin_i2c.c index ad7a60d94338..929090a094bf 100644 --- a/drivers/input/touchscreen/goodix_berlin_i2c.c +++ b/drivers/input/touchscreen/goodix_berlin_i2c.c @@ -31,6 +31,8 @@ static const struct input_id goodix_berlin_i2c_input_id = { static int goodix_berlin_i2c_probe(struct i2c_client *client) { + const struct goodix_berlin_ic_data *ic_data = + i2c_get_match_data(client); struct regmap *regmap; int error; @@ -39,22 +41,28 @@ static int goodix_berlin_i2c_probe(struct i2c_client *client) return PTR_ERR(regmap); error = goodix_berlin_probe(&client->dev, client->irq, - &goodix_berlin_i2c_input_id, regmap); + &goodix_berlin_i2c_input_id, regmap, + ic_data); if (error) return error; return 0; } +static const struct goodix_berlin_ic_data gt9916_data = { + .fw_version_info_addr = GOODIX_BERLIN_FW_VERSION_INFO_ADDR_D, + .ic_info_addr = GOODIX_BERLIN_IC_INFO_ADDR_D, +}; + static const struct i2c_device_id goodix_berlin_i2c_id[] = { - { "gt9916" }, + { .name = "gt9916", .driver_data = (long)>9916_data }, { } }; MODULE_DEVICE_TABLE(i2c, goodix_berlin_i2c_id); static const struct of_device_id goodix_berlin_i2c_of_match[] = { - { .compatible = "goodix,gt9916", }, + { .compatible = "goodix,gt9916", .data = >9916_data }, { } }; MODULE_DEVICE_TABLE(of, goodix_berlin_i2c_of_match); diff --git a/drivers/input/touchscreen/goodix_berlin_spi.c b/drivers/input/touchscreen/goodix_berlin_spi.c index 0662e87b8692..01f850f484c2 100644 --- a/drivers/input/touchscreen/goodix_berlin_spi.c +++ b/drivers/input/touchscreen/goodix_berlin_spi.c @@ -18,10 +18,14 @@ #define GOODIX_BERLIN_SPI_TRANS_PREFIX_LEN 1 #define GOODIX_BERLIN_REGISTER_WIDTH 4 -#define GOODIX_BERLIN_SPI_READ_DUMMY_LEN 3 -#define GOODIX_BERLIN_SPI_READ_PREFIX_LEN (GOODIX_BERLIN_SPI_TRANS_PREFIX_LEN + \ +#define GOODIX_BERLIN_SPI_READ_DUMMY_LEN_A 4 +#define GOODIX_BERLIN_SPI_READ_DUMMY_LEN_D 3 +#define GOODIX_BERLIN_SPI_READ_PREFIX_LEN_A (GOODIX_BERLIN_SPI_TRANS_PREFIX_LEN + \ GOODIX_BERLIN_REGISTER_WIDTH + \ - GOODIX_BERLIN_SPI_READ_DUMMY_LEN) + GOODIX_BERLIN_SPI_READ_DUMMY_LEN_A) +#define GOODIX_BERLIN_SPI_READ_PREFIX_LEN_D (GOODIX_BERLIN_SPI_TRANS_PREFIX_LEN + \ + GOODIX_BERLIN_REGISTER_WIDTH + \ + GOODIX_BERLIN_SPI_READ_DUMMY_LEN_D) #define GOODIX_BERLIN_SPI_WRITE_PREFIX_LEN (GOODIX_BERLIN_SPI_TRANS_PREFIX_LEN + \ GOODIX_BERLIN_REGISTER_WIDTH) @@ -33,6 +37,7 @@ static int goodix_berlin_spi_read(void *context, const void *reg_buf, size_t val_size) { struct spi_device *spi = context; + const struct goodix_berlin_ic_data *ic_data = spi_get_device_match_data(spi); struct spi_transfer xfers; struct spi_message spi_msg; const u32 *reg = reg_buf; /* reg is stored as native u32 at start of buffer */ @@ -42,23 +47,22 @@ static int goodix_berlin_spi_read(void *context, const void *reg_buf, return -EINVAL; u8 *buf __free(kfree) = - kzalloc(GOODIX_BERLIN_SPI_READ_PREFIX_LEN + val_size, - GFP_KERNEL); + kzalloc(ic_data->read_prefix_len + val_size, GFP_KERNEL); if (!buf) return -ENOMEM; spi_message_init(&spi_msg); memset(&xfers, 0, sizeof(xfers)); - /* buffer format: 0xF1 + addr(4bytes) + dummy(3bytes) + data */ + /* buffer format: 0xF1 + addr(4bytes) + dummy(3/4bytes) + data */ buf[0] = GOODIX_BERLIN_SPI_READ_FLAG; put_unaligned_be32(*reg, buf + GOODIX_BERLIN_SPI_TRANS_PREFIX_LEN); memset(buf + GOODIX_BERLIN_SPI_TRANS_PREFIX_LEN + GOODIX_BERLIN_REGISTER_WIDTH, - 0xff, GOODIX_BERLIN_SPI_READ_DUMMY_LEN); + 0xff, ic_data->read_dummy_len); xfers.tx_buf = buf; xfers.rx_buf = buf; - xfers.len = GOODIX_BERLIN_SPI_READ_PREFIX_LEN + val_size; + xfers.len = ic_data->read_prefix_len + val_size; xfers.cs_change = 0; spi_message_add_tail(&xfers, &spi_msg); @@ -68,7 +72,7 @@ static int goodix_berlin_spi_read(void *context, const void *reg_buf, return error; } - memcpy(val_buf, buf + GOODIX_BERLIN_SPI_READ_PREFIX_LEN, val_size); + memcpy(val_buf, buf + ic_data->read_prefix_len, val_size); return error; } @@ -123,6 +127,7 @@ static const struct input_id goodix_berlin_spi_input_id = { static int goodix_berlin_spi_probe(struct spi_device *spi) { + const struct goodix_berlin_ic_data *ic_data = spi_get_device_match_data(spi); struct regmap_config regmap_config; struct regmap *regmap; size_t max_size; @@ -137,7 +142,7 @@ static int goodix_berlin_spi_probe(struct spi_device *spi) max_size = spi_max_transfer_size(spi); regmap_config = goodix_berlin_spi_regmap_conf; - regmap_config.max_raw_read = max_size - GOODIX_BERLIN_SPI_READ_PREFIX_LEN; + regmap_config.max_raw_read = max_size - ic_data->read_prefix_len; regmap_config.max_raw_write = max_size - GOODIX_BERLIN_SPI_WRITE_PREFIX_LEN; regmap = devm_regmap_init(&spi->dev, NULL, spi, ®map_config); @@ -145,21 +150,38 @@ static int goodix_berlin_spi_probe(struct spi_device *spi) return PTR_ERR(regmap); error = goodix_berlin_probe(&spi->dev, spi->irq, - &goodix_berlin_spi_input_id, regmap); + &goodix_berlin_spi_input_id, regmap, + ic_data); if (error) return error; return 0; } +static const struct goodix_berlin_ic_data gt9897_data = { + .fw_version_info_addr = GOODIX_BERLIN_FW_VERSION_INFO_ADDR_A, + .ic_info_addr = GOODIX_BERLIN_IC_INFO_ADDR_A, + .read_dummy_len = GOODIX_BERLIN_SPI_READ_DUMMY_LEN_A, + .read_prefix_len = GOODIX_BERLIN_SPI_READ_PREFIX_LEN_A, +}; + +static const struct goodix_berlin_ic_data gt9916_data = { + .fw_version_info_addr = GOODIX_BERLIN_FW_VERSION_INFO_ADDR_D, + .ic_info_addr = GOODIX_BERLIN_IC_INFO_ADDR_D, + .read_dummy_len = GOODIX_BERLIN_SPI_READ_DUMMY_LEN_D, + .read_prefix_len = GOODIX_BERLIN_SPI_READ_PREFIX_LEN_D, +}; + static const struct spi_device_id goodix_berlin_spi_ids[] = { - { "gt9916" }, + { .name = "gt9897", .driver_data = (long)>9897_data }, + { .name = "gt9916", .driver_data = (long)>9916_data }, { }, }; MODULE_DEVICE_TABLE(spi, goodix_berlin_spi_ids); static const struct of_device_id goodix_berlin_spi_of_match[] = { - { .compatible = "goodix,gt9916", }, + { .compatible = "goodix,gt9897", .data = >9897_data }, + { .compatible = "goodix,gt9916", .data = >9916_data }, { } }; MODULE_DEVICE_TABLE(of, goodix_berlin_spi_of_match); diff --git a/drivers/input/touchscreen/gunze.c b/drivers/input/touchscreen/gunze.c index dbf92fb02f80..2baeb4f3b941 100644 --- a/drivers/input/touchscreen/gunze.c +++ b/drivers/input/touchscreen/gunze.c @@ -97,7 +97,7 @@ static int gunze_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - gunze = kzalloc(sizeof(*gunze), GFP_KERNEL); + gunze = kzalloc_obj(*gunze); input_dev = input_allocate_device(); if (!gunze || !input_dev) { err = -ENOMEM; @@ -106,7 +106,7 @@ static int gunze_connect(struct serio *serio, struct serio_driver *drv) gunze->serio = serio; gunze->dev = input_dev; - snprintf(gunze->phys, sizeof(serio->phys), "%s/input0", serio->phys); + scnprintf(gunze->phys, sizeof(serio->phys), "%s/input0", serio->phys); input_dev->name = "Gunze AHL-51S TouchScreen"; input_dev->phys = gunze->phys; diff --git a/drivers/input/touchscreen/hampshire.c b/drivers/input/touchscreen/hampshire.c index dc0a2482ddd6..394ae8c88d50 100644 --- a/drivers/input/touchscreen/hampshire.c +++ b/drivers/input/touchscreen/hampshire.c @@ -109,7 +109,7 @@ static int hampshire_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - phampshire = kzalloc(sizeof(*phampshire), GFP_KERNEL); + phampshire = kzalloc_obj(*phampshire); input_dev = input_allocate_device(); if (!phampshire || !input_dev) { err = -ENOMEM; @@ -118,8 +118,8 @@ static int hampshire_connect(struct serio *serio, struct serio_driver *drv) phampshire->serio = serio; phampshire->dev = input_dev; - snprintf(phampshire->phys, sizeof(phampshire->phys), - "%s/input0", serio->phys); + scnprintf(phampshire->phys, sizeof(phampshire->phys), + "%s/input0", serio->phys); input_dev->name = "Hampshire Serial TouchScreen"; input_dev->phys = phampshire->phys; diff --git a/drivers/input/touchscreen/himax_hx852x.c b/drivers/input/touchscreen/himax_hx852x.c new file mode 100644 index 000000000000..83c60e137a55 --- /dev/null +++ b/drivers/input/touchscreen/himax_hx852x.c @@ -0,0 +1,503 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Himax HX852x(ES) Touchscreen Driver + * Copyright (c) 2020-2024 Stephan Gerhold <stephan@gerhold.net> + * Copyright (c) 2020 Jonathan Albrieux <jonathan.albrieux@gmail.com> + * + * Based on the Himax Android Driver Sample Code Ver 0.3 for HMX852xES chipset: + * Copyright (c) 2014 Himax Corporation. + */ + +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/i2c.h> +#include <linux/input.h> +#include <linux/input/mt.h> +#include <linux/input/touchscreen.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/regulator/consumer.h> +#include <linux/unaligned.h> + +#define HX852X_COORD_SIZE(fingers) ((fingers) * sizeof(struct hx852x_coord)) +#define HX852X_WIDTH_SIZE(fingers) ALIGN(fingers, 4) +#define HX852X_BUF_SIZE(fingers) (HX852X_COORD_SIZE(fingers) + \ + HX852X_WIDTH_SIZE(fingers) + \ + sizeof(struct hx852x_touch_info)) + +#define HX852X_MAX_FINGERS 12 +#define HX852X_MAX_KEY_COUNT 4 +#define HX852X_MAX_BUF_SIZE HX852X_BUF_SIZE(HX852X_MAX_FINGERS) + +#define HX852X_TS_SLEEP_IN 0x80 +#define HX852X_TS_SLEEP_OUT 0x81 +#define HX852X_TS_SENSE_OFF 0x82 +#define HX852X_TS_SENSE_ON 0x83 +#define HX852X_READ_ONE_EVENT 0x85 +#define HX852X_READ_ALL_EVENTS 0x86 +#define HX852X_READ_LATEST_EVENT 0x87 +#define HX852X_CLEAR_EVENT_STACK 0x88 + +#define HX852X_REG_SRAM_SWITCH 0x8c +#define HX852X_REG_SRAM_ADDR 0x8b +#define HX852X_REG_FLASH_RPLACE 0x5a + +#define HX852X_SRAM_SWITCH_TEST_MODE 0x14 +#define HX852X_SRAM_ADDR_CONFIG 0x7000 + +struct hx852x { + struct i2c_client *client; + struct input_dev *input_dev; + struct touchscreen_properties props; + struct gpio_desc *reset_gpiod; + struct regulator_bulk_data supplies[2]; + unsigned int max_fingers; + unsigned int keycount; + unsigned int keycodes[HX852X_MAX_KEY_COUNT]; +}; + +struct hx852x_config { + u8 rx_num; + u8 tx_num; + u8 max_pt; + u8 padding1[3]; + __be16 x_res; + __be16 y_res; + u8 padding2[2]; +} __packed __aligned(4); + +struct hx852x_coord { + __be16 x; + __be16 y; +} __packed __aligned(4); + +struct hx852x_touch_info { + u8 finger_num; + __le16 finger_pressed; + u8 padding; +} __packed __aligned(4); + +static int hx852x_i2c_read(struct hx852x *hx, u8 cmd, void *data, u16 len) +{ + struct i2c_client *client = hx->client; + int error; + int ret; + + struct i2c_msg msg[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = &cmd, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = len, + .buf = data, + }, + }; + + ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg)); + if (ret != ARRAY_SIZE(msg)) { + error = ret < 0 ? ret : -EIO; + dev_err(&client->dev, "failed to read %#x: %d\n", cmd, error); + return error; + } + + return 0; +} + +static int hx852x_power_on(struct hx852x *hx) +{ + struct device *dev = &hx->client->dev; + int error; + + error = regulator_bulk_enable(ARRAY_SIZE(hx->supplies), hx->supplies); + if (error) { + dev_err(dev, "failed to enable regulators: %d\n", error); + return error; + } + + gpiod_set_value_cansleep(hx->reset_gpiod, 1); + msleep(20); + gpiod_set_value_cansleep(hx->reset_gpiod, 0); + msleep(50); + + return 0; +} + +static int hx852x_start(struct hx852x *hx) +{ + struct device *dev = &hx->client->dev; + int error; + + error = i2c_smbus_write_byte(hx->client, HX852X_TS_SLEEP_OUT); + if (error) { + dev_err(dev, "failed to send TS_SLEEP_OUT: %d\n", error); + return error; + } + msleep(30); + + error = i2c_smbus_write_byte(hx->client, HX852X_TS_SENSE_ON); + if (error) { + dev_err(dev, "failed to send TS_SENSE_ON: %d\n", error); + return error; + } + msleep(20); + + return 0; +} + +static int hx852x_stop(struct hx852x *hx) +{ + struct device *dev = &hx->client->dev; + int error; + + error = i2c_smbus_write_byte(hx->client, HX852X_TS_SENSE_OFF); + if (error) { + dev_err(dev, "failed to send TS_SENSE_OFF: %d\n", error); + return error; + } + msleep(20); + + error = i2c_smbus_write_byte(hx->client, HX852X_TS_SLEEP_IN); + if (error) { + dev_err(dev, "failed to send TS_SLEEP_IN: %d\n", error); + return error; + } + msleep(30); + + return 0; +} + +static int hx852x_power_off(struct hx852x *hx) +{ + struct device *dev = &hx->client->dev; + int error; + + error = regulator_bulk_disable(ARRAY_SIZE(hx->supplies), hx->supplies); + if (error) { + dev_err(dev, "failed to disable regulators: %d\n", error); + return error; + } + + return 0; +} + +static int hx852x_read_config(struct hx852x *hx) +{ + struct device *dev = &hx->client->dev; + struct hx852x_config conf; + int x_res, y_res; + int error, error2; + + error = hx852x_power_on(hx); + if (error) + return error; + + /* Sensing must be turned on briefly to load the config */ + error = hx852x_start(hx); + if (error) + goto err_power_off; + + error = hx852x_stop(hx); + if (error) + goto err_power_off; + + error = i2c_smbus_write_byte_data(hx->client, HX852X_REG_SRAM_SWITCH, + HX852X_SRAM_SWITCH_TEST_MODE); + if (error) + goto err_power_off; + + error = i2c_smbus_write_word_data(hx->client, HX852X_REG_SRAM_ADDR, + HX852X_SRAM_ADDR_CONFIG); + if (error) + goto err_test_mode; + + error = hx852x_i2c_read(hx, HX852X_REG_FLASH_RPLACE, &conf, sizeof(conf)); + if (error) + goto err_test_mode; + + x_res = be16_to_cpu(conf.x_res); + y_res = be16_to_cpu(conf.y_res); + hx->max_fingers = (conf.max_pt & 0xf0) >> 4; + dev_dbg(dev, "x res: %u, y res: %u, max fingers: %u\n", + x_res, y_res, hx->max_fingers); + + if (hx->max_fingers > HX852X_MAX_FINGERS) { + dev_err(dev, "max supported fingers: %u, found: %u\n", + HX852X_MAX_FINGERS, hx->max_fingers); + error = -EINVAL; + goto err_test_mode; + } + + if (x_res && y_res) { + input_set_abs_params(hx->input_dev, ABS_MT_POSITION_X, 0, x_res - 1, 0, 0); + input_set_abs_params(hx->input_dev, ABS_MT_POSITION_Y, 0, y_res - 1, 0, 0); + } + +err_test_mode: + error2 = i2c_smbus_write_byte_data(hx->client, HX852X_REG_SRAM_SWITCH, 0); + error = error ?: error2; +err_power_off: + error2 = hx852x_power_off(hx); + return error ?: error2; +} + +static int hx852x_handle_events(struct hx852x *hx) +{ + /* + * The event packets have variable size, depending on the amount of + * supported fingers (hx->max_fingers). They are laid out as follows: + * - struct hx852x_coord[hx->max_fingers]: Coordinates for each finger + * - u8[ALIGN(hx->max_fingers, 4)]: Touch width for each finger + * with padding for 32-bit alignment + * - struct hx852x_touch_info + * + * Load everything into a 32-bit aligned buffer so the coordinates + * can be assigned directly, without using get_unaligned_*(). + */ + u8 buf[HX852X_MAX_BUF_SIZE] __aligned(4); + struct hx852x_coord *coord = (struct hx852x_coord *)buf; + u8 *width = &buf[HX852X_COORD_SIZE(hx->max_fingers)]; + struct hx852x_touch_info *info = (struct hx852x_touch_info *) + &width[HX852X_WIDTH_SIZE(hx->max_fingers)]; + unsigned long finger_pressed, key_pressed; + unsigned int i, x, y, w; + int error; + + error = hx852x_i2c_read(hx, HX852X_READ_ALL_EVENTS, buf, + HX852X_BUF_SIZE(hx->max_fingers)); + if (error) + return error; + + finger_pressed = get_unaligned_le16(&info->finger_pressed); + key_pressed = finger_pressed >> HX852X_MAX_FINGERS; + + /* All bits are set when no touch is detected */ + if (info->finger_num == 0xff || !(info->finger_num & 0x0f)) + finger_pressed = 0; + if (key_pressed == 0xf) + key_pressed = 0; + + for_each_set_bit(i, &finger_pressed, hx->max_fingers) { + x = be16_to_cpu(coord[i].x); + y = be16_to_cpu(coord[i].y); + w = width[i]; + + input_mt_slot(hx->input_dev, i); + input_mt_report_slot_state(hx->input_dev, MT_TOOL_FINGER, 1); + touchscreen_report_pos(hx->input_dev, &hx->props, x, y, true); + input_report_abs(hx->input_dev, ABS_MT_TOUCH_MAJOR, w); + } + input_mt_sync_frame(hx->input_dev); + + for (i = 0; i < hx->keycount; i++) + input_report_key(hx->input_dev, hx->keycodes[i], key_pressed & BIT(i)); + + input_sync(hx->input_dev); + return 0; +} + +static irqreturn_t hx852x_interrupt(int irq, void *ptr) +{ + struct hx852x *hx = ptr; + int error; + + error = hx852x_handle_events(hx); + if (error) { + dev_err_ratelimited(&hx->client->dev, + "failed to handle events: %d\n", error); + return IRQ_NONE; + } + + return IRQ_HANDLED; +} + +static int hx852x_input_open(struct input_dev *dev) +{ + struct hx852x *hx = input_get_drvdata(dev); + int error; + + error = hx852x_power_on(hx); + if (error) + return error; + + error = hx852x_start(hx); + if (error) { + hx852x_power_off(hx); + return error; + } + + enable_irq(hx->client->irq); + return 0; +} + +static void hx852x_input_close(struct input_dev *dev) +{ + struct hx852x *hx = input_get_drvdata(dev); + + hx852x_stop(hx); + disable_irq(hx->client->irq); + hx852x_power_off(hx); +} + +static int hx852x_parse_properties(struct hx852x *hx) +{ + struct device *dev = &hx->client->dev; + int error, count; + + count = device_property_count_u32(dev, "linux,keycodes"); + if (count == -EINVAL) { + /* Property does not exist, keycodes are optional */ + return 0; + } else if (count < 0) { + dev_err(dev, "Failed to read linux,keycodes: %d\n", count); + return count; + } else if (count > HX852X_MAX_KEY_COUNT) { + dev_err(dev, "max supported keys: %u, found: %u\n", + HX852X_MAX_KEY_COUNT, hx->keycount); + return -EINVAL; + } + hx->keycount = count; + + error = device_property_read_u32_array(dev, "linux,keycodes", + hx->keycodes, hx->keycount); + if (error) { + dev_err(dev, "failed to read linux,keycodes: %d\n", error); + return error; + } + + return 0; +} + +static int hx852x_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct hx852x *hx; + int error, i; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C | + I2C_FUNC_SMBUS_WRITE_BYTE | + I2C_FUNC_SMBUS_WRITE_BYTE_DATA | + I2C_FUNC_SMBUS_WRITE_WORD_DATA)) { + dev_err(dev, "not all required i2c functionality supported\n"); + return -ENXIO; + } + + hx = devm_kzalloc(dev, sizeof(*hx), GFP_KERNEL); + if (!hx) + return -ENOMEM; + + hx->client = client; + hx->input_dev = devm_input_allocate_device(dev); + if (!hx->input_dev) + return -ENOMEM; + + hx->input_dev->name = "Himax HX852x"; + hx->input_dev->id.bustype = BUS_I2C; + hx->input_dev->open = hx852x_input_open; + hx->input_dev->close = hx852x_input_close; + + i2c_set_clientdata(client, hx); + input_set_drvdata(hx->input_dev, hx); + + hx->supplies[0].supply = "vcca"; + hx->supplies[1].supply = "vccd"; + error = devm_regulator_bulk_get(dev, ARRAY_SIZE(hx->supplies), hx->supplies); + if (error) + return dev_err_probe(dev, error, "failed to get regulators\n"); + + hx->reset_gpiod = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(hx->reset_gpiod)) + return dev_err_probe(dev, PTR_ERR(hx->reset_gpiod), + "failed to get reset gpio\n"); + + error = devm_request_threaded_irq(dev, client->irq, NULL, hx852x_interrupt, + IRQF_ONESHOT | IRQF_NO_AUTOEN, NULL, hx); + if (error) + return dev_err_probe(dev, error, "failed to request irq %d", client->irq); + + error = hx852x_read_config(hx); + if (error) + return error; + + input_set_capability(hx->input_dev, EV_ABS, ABS_MT_POSITION_X); + input_set_capability(hx->input_dev, EV_ABS, ABS_MT_POSITION_Y); + input_set_abs_params(hx->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0); + + touchscreen_parse_properties(hx->input_dev, true, &hx->props); + error = hx852x_parse_properties(hx); + if (error) + return error; + + hx->input_dev->keycode = hx->keycodes; + hx->input_dev->keycodemax = hx->keycount; + hx->input_dev->keycodesize = sizeof(hx->keycodes[0]); + for (i = 0; i < hx->keycount; i++) + input_set_capability(hx->input_dev, EV_KEY, hx->keycodes[i]); + + error = input_mt_init_slots(hx->input_dev, hx->max_fingers, + INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); + if (error) + return dev_err_probe(dev, error, "failed to init MT slots\n"); + + error = input_register_device(hx->input_dev); + if (error) + return dev_err_probe(dev, error, "failed to register input device\n"); + + return 0; +} + +static int hx852x_suspend(struct device *dev) +{ + struct hx852x *hx = dev_get_drvdata(dev); + + guard(mutex)(&hx->input_dev->mutex); + + if (input_device_enabled(hx->input_dev)) + return hx852x_stop(hx); + + return 0; +} + +static int hx852x_resume(struct device *dev) +{ + struct hx852x *hx = dev_get_drvdata(dev); + + guard(mutex)(&hx->input_dev->mutex); + + if (input_device_enabled(hx->input_dev)) + return hx852x_start(hx); + + return 0; +} + +static DEFINE_SIMPLE_DEV_PM_OPS(hx852x_pm_ops, hx852x_suspend, hx852x_resume); + +#ifdef CONFIG_OF +static const struct of_device_id hx852x_of_match[] = { + { .compatible = "himax,hx852es" }, + { } +}; +MODULE_DEVICE_TABLE(of, hx852x_of_match); +#endif + +static struct i2c_driver hx852x_driver = { + .probe = hx852x_probe, + .driver = { + .name = "himax_hx852x", + .pm = pm_sleep_ptr(&hx852x_pm_ops), + .of_match_table = of_match_ptr(hx852x_of_match), + }, +}; +module_i2c_driver(hx852x_driver); + +MODULE_DESCRIPTION("Himax HX852x(ES) Touchscreen Driver"); +MODULE_AUTHOR("Jonathan Albrieux <jonathan.albrieux@gmail.com>"); +MODULE_AUTHOR("Stephan Gerhold <stephan@gerhold.net>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/hynitron-cst816x.c b/drivers/input/touchscreen/hynitron-cst816x.c new file mode 100644 index 000000000000..b64d7928e18f --- /dev/null +++ b/drivers/input/touchscreen/hynitron-cst816x.c @@ -0,0 +1,253 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for I2C connected Hynitron CST816x Series Touchscreen + * + * Copyright (C) 2025 Oleh Kuzhylnyi <kuzhylol@gmail.com> + */ + +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/gpio/consumer.h> +#include <linux/i2c.h> +#include <linux/input.h> +#include <linux/unaligned.h> +#include <linux/interrupt.h> +#include <linux/module.h> + +#define CST816X_RD_REG 0x01 +#define CST816X_NUM_KEYS 5 + +struct cst816x_touch { + u8 gest; + u8 active; + u16 abs_x; + u16 abs_y; +} __packed; + +struct cst816x_priv { + struct i2c_client *client; + struct gpio_desc *reset; + struct input_dev *input; + unsigned int keycode[CST816X_NUM_KEYS]; + unsigned int keycodemax; +}; + +static int cst816x_parse_keycodes(struct device *dev, struct cst816x_priv *priv) +{ + int count; + int error; + + if (device_property_present(dev, "linux,keycodes")) { + count = device_property_count_u32(dev, "linux,keycodes"); + if (count < 0) { + error = count; + dev_err(dev, "failed to count keys: %d\n", error); + return error; + } else if (count > ARRAY_SIZE(priv->keycode)) { + dev_err(dev, "too many keys defined: %d\n", count); + return -EINVAL; + } + priv->keycodemax = count; + + error = device_property_read_u32_array(dev, "linux,keycodes", + priv->keycode, + priv->keycodemax); + if (error) { + dev_err(dev, "failed to read keycodes: %d\n", error); + return error; + } + } + + return 0; +} + +static int cst816x_i2c_read_register(struct cst816x_priv *priv, u8 reg, + void *buf, size_t len) +{ + struct i2c_msg xfer[] = { + { + .addr = priv->client->addr, + .flags = 0, + .buf = ®, + .len = sizeof(reg), + }, + { + .addr = priv->client->addr, + .flags = I2C_M_RD, + .buf = buf, + .len = len, + }, + }; + int error; + int ret; + + ret = i2c_transfer(priv->client->adapter, xfer, ARRAY_SIZE(xfer)); + if (ret != ARRAY_SIZE(xfer)) { + error = ret < 0 ? ret : -EIO; + dev_err(&priv->client->dev, "i2c rx err: %d\n", error); + return error; + } + + return 0; +} + +static u8 cst816x_gest_idx(u8 gest) +{ + u8 index; + + switch (gest) { + case 0x01: /* Slide up gesture */ + case 0x02: /* Slide down gesture */ + case 0x03: /* Slide left gesture */ + case 0x04: /* Slide right gesture */ + index = gest; + break; + case 0x0c: /* Long press gesture */ + default: + index = CST816X_NUM_KEYS; + break; + } + + return index - 1; +} + +static bool cst816x_process_touch(struct cst816x_priv *priv, + struct cst816x_touch *tch) +{ + if (cst816x_i2c_read_register(priv, CST816X_RD_REG, tch, sizeof(*tch))) + return false; + + tch->abs_x = get_unaligned_be16(&tch->abs_x) & GENMASK(11, 0); + tch->abs_y = get_unaligned_be16(&tch->abs_y) & GENMASK(11, 0); + + dev_dbg(&priv->client->dev, "x: %u, y: %u, t: %u, g: 0x%x\n", + tch->abs_x, tch->abs_y, tch->active, tch->gest); + + return true; +} + +static int cst816x_register_input(struct cst816x_priv *priv) +{ + priv->input = devm_input_allocate_device(&priv->client->dev); + if (!priv->input) + return -ENOMEM; + + priv->input->name = "Hynitron CST816x Series Touchscreen"; + priv->input->phys = "input/ts"; + priv->input->id.bustype = BUS_I2C; + + input_set_drvdata(priv->input, priv); + + input_set_abs_params(priv->input, ABS_X, 0, 240, 0, 0); + input_set_abs_params(priv->input, ABS_Y, 0, 240, 0, 0); + input_set_capability(priv->input, EV_KEY, BTN_TOUCH); + + priv->input->keycode = priv->keycode; + priv->input->keycodesize = sizeof(priv->keycode[0]); + priv->input->keycodemax = priv->keycodemax; + + for (int i = 0; i < priv->keycodemax; i++) { + if (priv->keycode[i] == KEY_RESERVED) + continue; + + input_set_capability(priv->input, EV_KEY, priv->keycode[i]); + } + + return input_register_device(priv->input); +} + +static void cst816x_reset(struct cst816x_priv *priv) +{ + gpiod_set_value_cansleep(priv->reset, 1); + msleep(50); + gpiod_set_value_cansleep(priv->reset, 0); + msleep(100); +} + +static irqreturn_t cst816x_irq_cb(int irq, void *cookie) +{ + struct cst816x_priv *priv = cookie; + struct cst816x_touch tch; + + if (!cst816x_process_touch(priv, &tch)) + return IRQ_HANDLED; + + input_report_abs(priv->input, ABS_X, tch.abs_x); + input_report_abs(priv->input, ABS_Y, tch.abs_y); + + if (tch.gest) + input_report_key(priv->input, + priv->keycode[cst816x_gest_idx(tch.gest)], + tch.active); + + input_report_key(priv->input, BTN_TOUCH, tch.active); + + input_sync(priv->input); + + return IRQ_HANDLED; +} + +static int cst816x_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct cst816x_priv *priv; + int error; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->client = client; + + priv->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(priv->reset)) + return dev_err_probe(dev, PTR_ERR(priv->reset), + "gpio reset request failed\n"); + + if (priv->reset) + cst816x_reset(priv); + + error = cst816x_parse_keycodes(dev, priv); + if (error) + dev_warn(dev, "no gestures found in dt\n"); + + error = cst816x_register_input(priv); + if (error) + return dev_err_probe(dev, error, "input register failed\n"); + + error = devm_request_threaded_irq(dev, client->irq, + NULL, cst816x_irq_cb, IRQF_ONESHOT, + dev_driver_string(dev), priv); + if (error) + return dev_err_probe(dev, error, "irq request failed\n"); + + return 0; +} + +static const struct i2c_device_id cst816x_id[] = { + { .name = "cst816s", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, cst816x_id); + +static const struct of_device_id cst816x_of_match[] = { + { .compatible = "hynitron,cst816s", }, + { } +}; +MODULE_DEVICE_TABLE(of, cst816x_of_match); + +static struct i2c_driver cst816x_driver = { + .driver = { + .name = "cst816x", + .of_match_table = cst816x_of_match, + }, + .id_table = cst816x_id, + .probe = cst816x_probe, +}; + +module_i2c_driver(cst816x_driver); + +MODULE_AUTHOR("Oleh Kuzhylnyi <kuzhylol@gmail.com>"); +MODULE_DESCRIPTION("Hynitron CST816x Series Touchscreen Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c index fa38d70aded7..3bf524a6ee20 100644 --- a/drivers/input/touchscreen/ili210x.c +++ b/drivers/input/touchscreen/ili210x.c @@ -327,9 +327,8 @@ static bool ili210x_report_events(struct ili210x *priv, u8 *touchdata) return contact; } -static irqreturn_t ili210x_irq(int irq, void *irq_data) +static void ili210x_process_events(struct ili210x *priv) { - struct ili210x *priv = irq_data; struct i2c_client *client = priv->client; const struct ili2xxx_chip *chip = priv->chip; u8 touchdata[ILI210X_DATA_SIZE] = { 0 }; @@ -356,8 +355,22 @@ static irqreturn_t ili210x_irq(int irq, void *irq_data) usleep_range(time_delta, time_delta + 1000); } } while (!priv->stop && keep_polling); +} + +static irqreturn_t ili210x_irq(int irq, void *irq_data) +{ + struct ili210x *priv = irq_data; + + ili210x_process_events(priv); return IRQ_HANDLED; +}; + +static void ili210x_work_i2c_poll(struct input_dev *input) +{ + struct ili210x *priv = input_get_drvdata(input); + + ili210x_process_events(priv); } static int ili251x_firmware_update_resolution(struct device *dev) @@ -829,12 +842,32 @@ static int ili210x_do_firmware_update(struct ili210x *priv, return 0; } +static ssize_t ili210x_firmware_update(struct device *dev, const u8 *fwbuf, + u16 ac_end, u16 df_end) +{ + struct i2c_client *client = to_i2c_client(dev); + struct ili210x *priv = i2c_get_clientdata(client); + const char *fwname = ILI251X_FW_FILENAME; + int error; + + dev_dbg(dev, "Firmware update started, firmware=%s\n", fwname); + + ili210x_hardware_reset(priv->reset_gpio); + + error = ili210x_do_firmware_update(priv, fwbuf, ac_end, df_end); + + ili210x_hardware_reset(priv->reset_gpio); + + dev_dbg(dev, "Firmware update ended, error=%i\n", error); + + return error; +} + static ssize_t ili210x_firmware_update_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); - struct ili210x *priv = i2c_get_clientdata(client); const char *fwname = ILI251X_FW_FILENAME; u16 ac_end, df_end; int error; @@ -860,16 +893,11 @@ static ssize_t ili210x_firmware_update_store(struct device *dev, * the touch controller to disable the IRQs during update, so we have * to do it this way here. */ - scoped_guard(disable_irq, &client->irq) { - dev_dbg(dev, "Firmware update started, firmware=%s\n", fwname); - - ili210x_hardware_reset(priv->reset_gpio); - - error = ili210x_do_firmware_update(priv, fwbuf, ac_end, df_end); - - ili210x_hardware_reset(priv->reset_gpio); - - dev_dbg(dev, "Firmware update ended, error=%i\n", error); + if (client->irq > 0) { + guard(disable_irq)(&client->irq); + error = ili210x_firmware_update(dev, fwbuf, ac_end, df_end); + } else { + error = ili210x_firmware_update(dev, fwbuf, ac_end, df_end); } return error ?: count; @@ -942,15 +970,8 @@ static int ili210x_i2c_probe(struct i2c_client *client) chip = device_get_match_data(dev); if (!chip && id) chip = (const struct ili2xxx_chip *)id->driver_data; - if (!chip) { - dev_err(&client->dev, "unknown device model\n"); - return -ENODEV; - } - - if (client->irq <= 0) { - dev_err(dev, "No IRQ!\n"); - return -EINVAL; - } + if (!chip) + return dev_err_probe(&client->dev, -ENODEV, "unknown device model\n"); reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(reset_gpio)) @@ -998,17 +1019,22 @@ static int ili210x_i2c_probe(struct i2c_client *client) error = input_mt_init_slots(input, priv->chip->max_touches, INPUT_MT_DIRECT); - if (error) { - dev_err(dev, "Unable to set up slots, err: %d\n", error); - return error; - } + if (error) + return dev_err_probe(dev, error, "Unable to set up slots\n"); - error = devm_request_threaded_irq(dev, client->irq, NULL, ili210x_irq, - IRQF_ONESHOT, client->name, priv); - if (error) { - dev_err(dev, "Unable to request touchscreen IRQ, err: %d\n", - error); - return error; + input_set_drvdata(input, priv); + + if (client->irq > 0) { + error = devm_request_threaded_irq(dev, client->irq, NULL, ili210x_irq, + IRQF_ONESHOT, client->name, priv); + if (error) + return dev_err_probe(dev, error, "Unable to request touchscreen IRQ\n"); + } else { + error = input_setup_polling(input, ili210x_work_i2c_poll); + if (error) + return dev_err_probe(dev, error, "Could not set up polling mode\n"); + + input_set_poll_interval(input, ILI2XXX_POLL_PERIOD); } error = devm_add_action_or_reset(dev, ili210x_stop, priv); @@ -1016,10 +1042,8 @@ static int ili210x_i2c_probe(struct i2c_client *client) return error; error = input_register_device(priv->input); - if (error) { - dev_err(dev, "Cannot register input device, err: %d\n", error); - return error; - } + if (error) + return dev_err_probe(dev, error, "Cannot register input device\n"); return 0; } diff --git a/drivers/input/touchscreen/ilitek_ts_i2c.c b/drivers/input/touchscreen/ilitek_ts_i2c.c index 0dd632724a00..0706443792ba 100644 --- a/drivers/input/touchscreen/ilitek_ts_i2c.c +++ b/drivers/input/touchscreen/ilitek_ts_i2c.c @@ -122,7 +122,7 @@ static int ilitek_i2c_write_and_read(struct ilitek_ts_data *ts, return error; } if (delay > 0) - mdelay(delay); + fsleep(delay * 1000); if (read_len > 0) { error = i2c_transfer(client->adapter, msgs + 1, 1); @@ -396,10 +396,10 @@ static const struct ilitek_protocol_map ptl_func_map[] = { static void ilitek_reset(struct ilitek_ts_data *ts, int delay) { if (ts->reset_gpio) { - gpiod_set_value(ts->reset_gpio, 1); - mdelay(10); - gpiod_set_value(ts->reset_gpio, 0); - mdelay(delay); + gpiod_set_value_cansleep(ts->reset_gpio, 1); + fsleep(10000); + gpiod_set_value_cansleep(ts->reset_gpio, 0); + fsleep(delay * 1000); } } diff --git a/drivers/input/touchscreen/imx6ul_tsc.c b/drivers/input/touchscreen/imx6ul_tsc.c index 6ac8fa84ed9f..85f697de2b7e 100644 --- a/drivers/input/touchscreen/imx6ul_tsc.c +++ b/drivers/input/touchscreen/imx6ul_tsc.c @@ -7,6 +7,7 @@ #include <linux/errno.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/bitfield.h> #include <linux/gpio/consumer.h> #include <linux/input.h> #include <linux/slab.h> @@ -20,25 +21,23 @@ #include <linux/log2.h> /* ADC configuration registers field define */ -#define ADC_AIEN (0x1 << 7) +#define ADC_AIEN BIT(7) +#define ADC_ADCH_MASK GENMASK(4, 0) #define ADC_CONV_DISABLE 0x1F -#define ADC_AVGE (0x1 << 5) -#define ADC_CAL (0x1 << 7) -#define ADC_CALF 0x2 -#define ADC_12BIT_MODE (0x2 << 2) -#define ADC_CONV_MODE_MASK (0x3 << 2) +#define ADC_AVGE BIT(5) +#define ADC_CAL BIT(7) +#define ADC_CALF BIT(1) +#define ADC_CONV_MODE_MASK GENMASK(3, 2) +#define ADC_12BIT_MODE 0x2 #define ADC_IPG_CLK 0x00 -#define ADC_INPUT_CLK_MASK 0x3 -#define ADC_CLK_DIV_8 (0x03 << 5) -#define ADC_CLK_DIV_MASK (0x3 << 5) -#define ADC_SHORT_SAMPLE_MODE (0x0 << 4) -#define ADC_SAMPLE_MODE_MASK (0x1 << 4) -#define ADC_HARDWARE_TRIGGER (0x1 << 13) -#define ADC_AVGS_SHIFT 14 -#define ADC_AVGS_MASK (0x3 << 14) +#define ADC_INPUT_CLK_MASK GENMASK(1, 0) +#define ADC_CLK_DIV_8 0x03 +#define ADC_CLK_DIV_MASK GENMASK(6, 5) +#define ADC_SAMPLE_MODE BIT(4) +#define ADC_HARDWARE_TRIGGER BIT(13) +#define ADC_AVGS_MASK GENMASK(15, 14) #define SELECT_CHANNEL_4 0x04 #define SELECT_CHANNEL_1 0x01 -#define DISABLE_CONVERSION_INT (0x0 << 7) /* ADC registers */ #define REG_ADC_HC0 0x00 @@ -55,7 +54,7 @@ #define ADC_TIMEOUT msecs_to_jiffies(100) /* TSC registers */ -#define REG_TSC_BASIC_SETING 0x00 +#define REG_TSC_BASIC_SETTING 0x00 #define REG_TSC_PRE_CHARGE_TIME 0x10 #define REG_TSC_FLOW_CONTROL 0x20 #define REG_TSC_MEASURE_VALUE 0x30 @@ -65,19 +64,26 @@ #define REG_TSC_DEBUG_MODE 0x70 #define REG_TSC_DEBUG_MODE2 0x80 +/* TSC_MEASURE_VALUE register field define */ +#define X_VALUE_MASK GENMASK(27, 16) +#define Y_VALUE_MASK GENMASK(11, 0) + /* TSC configuration registers field define */ -#define DETECT_4_WIRE_MODE (0x0 << 4) -#define AUTO_MEASURE 0x1 -#define MEASURE_SIGNAL 0x1 -#define DETECT_SIGNAL (0x1 << 4) -#define VALID_SIGNAL (0x1 << 8) -#define MEASURE_INT_EN 0x1 -#define MEASURE_SIG_EN 0x1 -#define VALID_SIG_EN (0x1 << 8) -#define DE_GLITCH_2 (0x2 << 29) -#define START_SENSE (0x1 << 12) -#define TSC_DISABLE (0x1 << 16) +#define MEASURE_DELAY_TIME_MASK GENMASK(31, 8) +#define DETECT_5_WIRE_MODE BIT(4) +#define AUTO_MEASURE BIT(0) +#define MEASURE_SIGNAL BIT(0) +#define DETECT_SIGNAL BIT(4) +#define VALID_SIGNAL BIT(8) +#define MEASURE_INT_EN BIT(0) +#define MEASURE_SIG_EN BIT(0) +#define VALID_SIG_EN BIT(8) +#define DE_GLITCH_MASK GENMASK(30, 29) +#define DE_GLITCH_DEF 0x02 +#define START_SENSE BIT(12) +#define TSC_DISABLE BIT(16) #define DETECT_MODE 0x2 +#define STATE_MACHINE_MASK GENMASK(22, 20) struct imx6ul_tsc { struct device *dev; @@ -92,6 +98,7 @@ struct imx6ul_tsc { u32 pre_charge_time; bool average_enable; u32 average_select; + u32 de_glitch; struct completion completion; }; @@ -112,19 +119,20 @@ static int imx6ul_adc_init(struct imx6ul_tsc *tsc) adc_cfg = readl(tsc->adc_regs + REG_ADC_CFG); adc_cfg &= ~(ADC_CONV_MODE_MASK | ADC_INPUT_CLK_MASK); - adc_cfg |= ADC_12BIT_MODE | ADC_IPG_CLK; - adc_cfg &= ~(ADC_CLK_DIV_MASK | ADC_SAMPLE_MODE_MASK); - adc_cfg |= ADC_CLK_DIV_8 | ADC_SHORT_SAMPLE_MODE; + adc_cfg |= FIELD_PREP(ADC_CONV_MODE_MASK, ADC_12BIT_MODE) | + FIELD_PREP(ADC_INPUT_CLK_MASK, ADC_IPG_CLK); + adc_cfg &= ~(ADC_CLK_DIV_MASK | ADC_SAMPLE_MODE); + adc_cfg |= FIELD_PREP(ADC_CLK_DIV_MASK, ADC_CLK_DIV_8); if (tsc->average_enable) { adc_cfg &= ~ADC_AVGS_MASK; - adc_cfg |= (tsc->average_select) << ADC_AVGS_SHIFT; + adc_cfg |= FIELD_PREP(ADC_AVGS_MASK, tsc->average_select); } adc_cfg &= ~ADC_HARDWARE_TRIGGER; writel(adc_cfg, tsc->adc_regs + REG_ADC_CFG); /* enable calibration interrupt */ adc_hc |= ADC_AIEN; - adc_hc |= ADC_CONV_DISABLE; + adc_hc |= FIELD_PREP(ADC_ADCH_MASK, ADC_CONV_DISABLE); writel(adc_hc, tsc->adc_regs + REG_ADC_HC0); /* start ADC calibration */ @@ -164,19 +172,21 @@ static void imx6ul_tsc_channel_config(struct imx6ul_tsc *tsc) { u32 adc_hc0, adc_hc1, adc_hc2, adc_hc3, adc_hc4; - adc_hc0 = DISABLE_CONVERSION_INT; + adc_hc0 = FIELD_PREP(ADC_AIEN, 0); writel(adc_hc0, tsc->adc_regs + REG_ADC_HC0); - adc_hc1 = DISABLE_CONVERSION_INT | SELECT_CHANNEL_4; + adc_hc1 = FIELD_PREP(ADC_AIEN, 0) | + FIELD_PREP(ADC_ADCH_MASK, SELECT_CHANNEL_4); writel(adc_hc1, tsc->adc_regs + REG_ADC_HC1); - adc_hc2 = DISABLE_CONVERSION_INT; + adc_hc2 = FIELD_PREP(ADC_AIEN, 0); writel(adc_hc2, tsc->adc_regs + REG_ADC_HC2); - adc_hc3 = DISABLE_CONVERSION_INT | SELECT_CHANNEL_1; + adc_hc3 = FIELD_PREP(ADC_AIEN, 0) | + FIELD_PREP(ADC_ADCH_MASK, SELECT_CHANNEL_1); writel(adc_hc3, tsc->adc_regs + REG_ADC_HC3); - adc_hc4 = DISABLE_CONVERSION_INT; + adc_hc4 = FIELD_PREP(ADC_AIEN, 0); writel(adc_hc4, tsc->adc_regs + REG_ADC_HC4); } @@ -188,13 +198,16 @@ static void imx6ul_tsc_channel_config(struct imx6ul_tsc *tsc) static void imx6ul_tsc_set(struct imx6ul_tsc *tsc) { u32 basic_setting = 0; + u32 debug_mode2; u32 start; - basic_setting |= tsc->measure_delay_time << 8; - basic_setting |= DETECT_4_WIRE_MODE | AUTO_MEASURE; - writel(basic_setting, tsc->tsc_regs + REG_TSC_BASIC_SETING); + basic_setting |= FIELD_PREP(MEASURE_DELAY_TIME_MASK, + tsc->measure_delay_time); + basic_setting |= AUTO_MEASURE; + writel(basic_setting, tsc->tsc_regs + REG_TSC_BASIC_SETTING); - writel(DE_GLITCH_2, tsc->tsc_regs + REG_TSC_DEBUG_MODE2); + debug_mode2 = FIELD_PREP(DE_GLITCH_MASK, tsc->de_glitch); + writel(debug_mode2, tsc->tsc_regs + REG_TSC_DEBUG_MODE2); writel(tsc->pre_charge_time, tsc->tsc_regs + REG_TSC_PRE_CHARGE_TIME); writel(MEASURE_INT_EN, tsc->tsc_regs + REG_TSC_INT_EN); @@ -250,7 +263,7 @@ static bool tsc_wait_detect_mode(struct imx6ul_tsc *tsc) usleep_range(200, 400); debug_mode2 = readl(tsc->tsc_regs + REG_TSC_DEBUG_MODE2); - state_machine = (debug_mode2 >> 20) & 0x7; + state_machine = FIELD_GET(STATE_MACHINE_MASK, debug_mode2); } while (state_machine != DETECT_MODE); usleep_range(200, 400); @@ -278,8 +291,8 @@ static irqreturn_t tsc_irq_fn(int irq, void *dev_id) if (status & MEASURE_SIGNAL) { value = readl(tsc->tsc_regs + REG_TSC_MEASURE_VALUE); - x = (value >> 16) & 0x0fff; - y = value & 0x0fff; + x = FIELD_GET(X_VALUE_MASK, value); + y = FIELD_GET(Y_VALUE_MASK, value); /* * In detect mode, we can get the xnur gpio value, @@ -379,6 +392,7 @@ static int imx6ul_tsc_probe(struct platform_device *pdev) int tsc_irq; int adc_irq; u32 average_samples; + u32 de_glitch; tsc = devm_kzalloc(&pdev->dev, sizeof(*tsc), GFP_KERNEL); if (!tsc) @@ -501,6 +515,25 @@ static int imx6ul_tsc_probe(struct platform_device *pdev) return -EINVAL; } + err = of_property_read_u32(np, "debounce-delay-us", &de_glitch); + if (err) { + tsc->de_glitch = DE_GLITCH_DEF; + } else { + u64 cycles; + unsigned long rate = clk_get_rate(tsc->tsc_clk); + + cycles = DIV64_U64_ROUND_UP((u64)de_glitch * rate, USEC_PER_SEC); + + if (cycles <= 0x3ff) + tsc->de_glitch = 3; + else if (cycles <= 0x7ff) + tsc->de_glitch = 2; + else if (cycles <= 0xfff) + tsc->de_glitch = 1; + else + tsc->de_glitch = 0; + } + err = input_register_device(tsc->input); if (err) { dev_err(&pdev->dev, diff --git a/drivers/input/touchscreen/inexio.c b/drivers/input/touchscreen/inexio.c index 82f7ac62a4f2..ac3836ff2a30 100644 --- a/drivers/input/touchscreen/inexio.c +++ b/drivers/input/touchscreen/inexio.c @@ -114,7 +114,7 @@ static int inexio_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - pinexio = kzalloc(sizeof(*pinexio), GFP_KERNEL); + pinexio = kzalloc_obj(*pinexio); input_dev = input_allocate_device(); if (!pinexio || !input_dev) { err = -ENOMEM; @@ -123,7 +123,7 @@ static int inexio_connect(struct serio *serio, struct serio_driver *drv) pinexio->serio = serio; pinexio->dev = input_dev; - snprintf(pinexio->phys, sizeof(pinexio->phys), "%s/input0", serio->phys); + scnprintf(pinexio->phys, sizeof(pinexio->phys), "%s/input0", serio->phys); input_dev->name = "iNexio Serial TouchScreen"; input_dev->phys = pinexio->phys; diff --git a/drivers/input/touchscreen/iqs5xx.c b/drivers/input/touchscreen/iqs5xx.c index 4ebd7565ae6e..c63819abaf9b 100644 --- a/drivers/input/touchscreen/iqs5xx.c +++ b/drivers/input/touchscreen/iqs5xx.c @@ -17,6 +17,7 @@ #include <linux/err.h> #include <linux/firmware.h> #include <linux/gpio/consumer.h> +#include <linux/hex.h> #include <linux/i2c.h> #include <linux/input.h> #include <linux/input/mt.h> diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c index 33635da85079..4b7e70a4c6d5 100644 --- a/drivers/input/touchscreen/mc13783_ts.c +++ b/drivers/input/touchscreen/mc13783_ts.c @@ -42,8 +42,6 @@ static irqreturn_t mc13783_ts_handler(int irq, void *data) { struct mc13783_ts_priv *priv = data; - mc13xxx_irq_ack(priv->mc13xxx, irq); - /* * Kick off reading coordinates. Note that if work happens already * be queued for future execution (it rearms itself) it will not @@ -137,8 +135,6 @@ static int mc13783_ts_open(struct input_dev *dev) mc13xxx_lock(priv->mc13xxx); - mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_TS); - ret = mc13xxx_irq_request(priv->mc13xxx, MC13XXX_IRQ_TS, mc13783_ts_handler, MC13783_TS_NAME, priv); if (ret) @@ -172,7 +168,7 @@ static int __init mc13783_ts_probe(struct platform_device *pdev) struct input_dev *idev; int ret = -ENOMEM; - priv = kzalloc(sizeof(*priv), GFP_KERNEL); + priv = kzalloc_obj(*priv); idev = input_allocate_device(); if (!priv || !idev) goto err_free_mem; diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c index a6946e3d8376..869884219908 100644 --- a/drivers/input/touchscreen/melfas_mip4.c +++ b/drivers/input/touchscreen/melfas_mip4.c @@ -1554,7 +1554,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(mip4_pm_ops, mip4_suspend, mip4_resume); #ifdef CONFIG_OF static const struct of_device_id mip4_of_match[] = { - { .compatible = "melfas,"MIP4_DEVICE_NAME, }, + { .compatible = "melfas,mip4_ts", }, { }, }; MODULE_DEVICE_TABLE(of, mip4_of_match); diff --git a/drivers/input/touchscreen/migor_ts.c b/drivers/input/touchscreen/migor_ts.c index 7511a134e302..993d945dcd23 100644 --- a/drivers/input/touchscreen/migor_ts.c +++ b/drivers/input/touchscreen/migor_ts.c @@ -122,7 +122,7 @@ static int migor_ts_probe(struct i2c_client *client) struct input_dev *input; int error; - priv = kzalloc(sizeof(*priv), GFP_KERNEL); + priv = kzalloc_obj(*priv); input = input_allocate_device(); if (!priv || !input) { dev_err(&client->dev, "failed to allocate memory\n"); diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c index eefae96a2d40..cc2d206d2f3d 100644 --- a/drivers/input/touchscreen/mtouch.c +++ b/drivers/input/touchscreen/mtouch.c @@ -128,7 +128,7 @@ static int mtouch_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - mtouch = kzalloc(sizeof(*mtouch), GFP_KERNEL); + mtouch = kzalloc_obj(*mtouch); input_dev = input_allocate_device(); if (!mtouch || !input_dev) { err = -ENOMEM; @@ -137,7 +137,7 @@ static int mtouch_connect(struct serio *serio, struct serio_driver *drv) mtouch->serio = serio; mtouch->dev = input_dev; - snprintf(mtouch->phys, sizeof(mtouch->phys), "%s/input0", serio->phys); + scnprintf(mtouch->phys, sizeof(mtouch->phys), "%s/input0", serio->phys); input_dev->name = "MicroTouch Serial TouchScreen"; input_dev->phys = mtouch->phys; diff --git a/drivers/input/touchscreen/novatek-nvt-ts.c b/drivers/input/touchscreen/novatek-nvt-ts.c index 44b58e0dc1ad..3e6e2ee0ba8f 100644 --- a/drivers/input/touchscreen/novatek-nvt-ts.c +++ b/drivers/input/touchscreen/novatek-nvt-ts.c @@ -27,7 +27,6 @@ #define NVT_TS_PARAMS_MAX_TOUCH 0x09 #define NVT_TS_PARAMS_MAX_BUTTONS 0x0a #define NVT_TS_PARAMS_IRQ_TYPE 0x0b -#define NVT_TS_PARAMS_WAKE_TYPE 0x0c #define NVT_TS_PARAMS_CHIP_ID 0x0e #define NVT_TS_PARAMS_SIZE 0x0f @@ -49,7 +48,6 @@ static const int nvt_ts_irq_type[4] = { }; struct nvt_ts_i2c_chip_data { - u8 wake_type; u8 chip_id; }; @@ -261,7 +259,6 @@ static int nvt_ts_probe(struct i2c_client *client) if (width > NVT_TS_MAX_SIZE || height >= NVT_TS_MAX_SIZE || data->max_touches > NVT_TS_MAX_TOUCHES || irq_type >= ARRAY_SIZE(nvt_ts_irq_type) || - data->buf[NVT_TS_PARAMS_WAKE_TYPE] != chip->wake_type || data->buf[NVT_TS_PARAMS_CHIP_ID] != chip->chip_id) { dev_err(dev, "Unsupported touchscreen parameters: %*ph\n", NVT_TS_PARAMS_SIZE, data->buf); @@ -314,12 +311,10 @@ static int nvt_ts_probe(struct i2c_client *client) } static const struct nvt_ts_i2c_chip_data nvt_nt11205_ts_data = { - .wake_type = 0x05, .chip_id = 0x05, }; static const struct nvt_ts_i2c_chip_data nvt_nt36672a_ts_data = { - .wake_type = 0x01, .chip_id = 0x08, }; diff --git a/drivers/input/touchscreen/pcap_ts.c b/drivers/input/touchscreen/pcap_ts.c index 083206a3457b..7b89eb74b9de 100644 --- a/drivers/input/touchscreen/pcap_ts.c +++ b/drivers/input/touchscreen/pcap_ts.c @@ -138,7 +138,7 @@ static int pcap_ts_probe(struct platform_device *pdev) struct pcap_ts *pcap_ts; int err = -ENOMEM; - pcap_ts = kzalloc(sizeof(*pcap_ts), GFP_KERNEL); + pcap_ts = kzalloc_obj(*pcap_ts); if (!pcap_ts) return err; diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c index 95adede26703..4b57b6664e37 100644 --- a/drivers/input/touchscreen/penmount.c +++ b/drivers/input/touchscreen/penmount.c @@ -199,7 +199,7 @@ static int pm_connect(struct serio *serio, struct serio_driver *drv) int max_x, max_y; int err; - pm = kzalloc(sizeof(*pm), GFP_KERNEL); + pm = kzalloc_obj(*pm); input_dev = input_allocate_device(); if (!pm || !input_dev) { err = -ENOMEM; @@ -208,7 +208,7 @@ static int pm_connect(struct serio *serio, struct serio_driver *drv) pm->serio = serio; pm->dev = input_dev; - snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys); + scnprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys); pm->maxcontacts = 1; input_dev->name = "PenMount Serial TouchScreen"; diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c index 6475084aee1b..9b3901eec0a5 100644 --- a/drivers/input/touchscreen/st1232.c +++ b/drivers/input/touchscreen/st1232.c @@ -22,6 +22,7 @@ #include <linux/pm_qos.h> #include <linux/slab.h> #include <linux/types.h> +#include <linux/input/touch-overlay.h> #define ST1232_TS_NAME "st1232-ts" #define ST1633_TS_NAME "st1633-ts" @@ -57,6 +58,7 @@ struct st1232_ts_data { struct dev_pm_qos_request low_latency_req; struct gpio_desc *reset_gpio; const struct st_chip_info *chip_info; + struct list_head touch_overlay_list; int read_buf_len; u8 *read_buf; }; @@ -156,6 +158,10 @@ static int st1232_ts_parse_and_report(struct st1232_ts_data *ts) input_mt_assign_slots(input, slots, pos, n_contacts, 0); for (i = 0; i < n_contacts; i++) { + if (touch_overlay_process_contact(&ts->touch_overlay_list, + input, &pos[i], slots[i])) + continue; + input_mt_slot(input, slots[i]); input_mt_report_slot_state(input, MT_TOOL_FINGER, true); input_report_abs(input, ABS_MT_POSITION_X, pos[i].x); @@ -164,6 +170,7 @@ static int st1232_ts_parse_and_report(struct st1232_ts_data *ts) input_report_abs(input, ABS_MT_TOUCH_MAJOR, z[i]); } + touch_overlay_sync_frame(&ts->touch_overlay_list, input); input_mt_sync_frame(input); input_sync(input); @@ -292,18 +299,30 @@ static int st1232_ts_probe(struct i2c_client *client) if (error) return error; - /* Read resolution from the chip */ - error = st1232_ts_read_resolution(ts, &max_x, &max_y); - if (error) { - dev_err(&client->dev, - "Failed to read resolution: %d\n", error); - return error; - } - if (ts->chip_info->have_z) input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, ts->chip_info->max_area, 0, 0); + /* map overlay objects if defined in the device tree */ + INIT_LIST_HEAD(&ts->touch_overlay_list); + error = touch_overlay_map(&ts->touch_overlay_list, input_dev); + if (error) + return error; + + if (touch_overlay_mapped_touchscreen(&ts->touch_overlay_list)) { + /* Read resolution from the overlay touchscreen if defined */ + touch_overlay_get_touchscreen_abs(&ts->touch_overlay_list, + &max_x, &max_y); + } else { + /* Read resolution from the chip */ + error = st1232_ts_read_resolution(ts, &max_x, &max_y); + if (error) { + dev_err(&client->dev, + "Failed to read resolution: %d\n", error); + return error; + } + } + input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, max_x, 0, 0); input_set_abs_params(input_dev, ABS_MT_POSITION_Y, diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c index 119cd26851cf..4b166b0a9a5a 100644 --- a/drivers/input/touchscreen/stmfts.c +++ b/drivers/input/touchscreen/stmfts.c @@ -120,7 +120,7 @@ static int stmfts_brightness_set(struct led_classdev *led_cdev, err = regulator_enable(sdata->ledvdd); if (err) { dev_warn(&sdata->client->dev, - "failed to disable ledvdd regulator: %d\n", + "failed to enable ledvdd regulator: %d\n", err); return err; } @@ -141,7 +141,7 @@ static enum led_brightness stmfts_brightness_get(struct led_classdev *led_cdev) /* * We can't simply use i2c_smbus_read_i2c_block_data because we - * need to read more than 255 bytes ( + * need to read 256 bytes, which exceeds the 255-byte SMBus block limit. */ static int stmfts_read_events(struct stmfts_data *sdata) { @@ -410,7 +410,7 @@ static ssize_t stmfts_sysfs_chip_id(struct device *dev, { struct stmfts_data *sdata = dev_get_drvdata(dev); - return sprintf(buf, "%#x\n", sdata->chip_id); + return sysfs_emit(buf, "%#x\n", sdata->chip_id); } static ssize_t stmfts_sysfs_chip_version(struct device *dev, @@ -418,7 +418,7 @@ static ssize_t stmfts_sysfs_chip_version(struct device *dev, { struct stmfts_data *sdata = dev_get_drvdata(dev); - return sprintf(buf, "%u\n", sdata->chip_ver); + return sysfs_emit(buf, "%u\n", sdata->chip_ver); } static ssize_t stmfts_sysfs_fw_ver(struct device *dev, @@ -426,7 +426,7 @@ static ssize_t stmfts_sysfs_fw_ver(struct device *dev, { struct stmfts_data *sdata = dev_get_drvdata(dev); - return sprintf(buf, "%u\n", sdata->fw_ver); + return sysfs_emit(buf, "%u\n", sdata->fw_ver); } static ssize_t stmfts_sysfs_config_id(struct device *dev, @@ -434,7 +434,7 @@ static ssize_t stmfts_sysfs_config_id(struct device *dev, { struct stmfts_data *sdata = dev_get_drvdata(dev); - return sprintf(buf, "%#x\n", sdata->config_id); + return sysfs_emit(buf, "%#x\n", sdata->config_id); } static ssize_t stmfts_sysfs_config_version(struct device *dev, @@ -442,7 +442,7 @@ static ssize_t stmfts_sysfs_config_version(struct device *dev, { struct stmfts_data *sdata = dev_get_drvdata(dev); - return sprintf(buf, "%u\n", sdata->config_ver); + return sysfs_emit(buf, "%u\n", sdata->config_ver); } static ssize_t stmfts_sysfs_read_status(struct device *dev, @@ -457,7 +457,7 @@ static ssize_t stmfts_sysfs_read_status(struct device *dev, if (err) return err; - return sprintf(buf, "%#02x\n", status[0]); + return sysfs_emit(buf, "%#02x\n", status[0]); } static ssize_t stmfts_sysfs_hover_enable_read(struct device *dev, @@ -465,7 +465,7 @@ static ssize_t stmfts_sysfs_hover_enable_read(struct device *dev, { struct stmfts_data *sdata = dev_get_drvdata(dev); - return sprintf(buf, "%u\n", sdata->hover_enabled); + return sysfs_emit(buf, "%u\n", sdata->hover_enabled); } static ssize_t stmfts_sysfs_hover_enable_write(struct device *dev, @@ -594,9 +594,6 @@ static void stmfts_power_off(void *data) sdata->regulators); } -/* This function is void because I don't want to prevent using the touch key - * only because the LEDs don't get registered - */ static int stmfts_enable_led(struct stmfts_data *sdata) { int err; diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c index a94a1997f96b..af0fb38bcfdc 100644 --- a/drivers/input/touchscreen/stmpe-ts.c +++ b/drivers/input/touchscreen/stmpe-ts.c @@ -366,12 +366,7 @@ static struct platform_driver stmpe_ts_driver = { }; module_platform_driver(stmpe_ts_driver); -static const struct of_device_id stmpe_ts_ids[] = { - { .compatible = "st,stmpe-ts", }, - { }, -}; -MODULE_DEVICE_TABLE(of, stmpe_ts_ids); - +MODULE_ALIAS("platform:stmpe-ts"); MODULE_AUTHOR("Luotao Fu <l.fu@pengutronix.de>"); MODULE_DESCRIPTION("STMPEXXX touchscreen driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c index 8365a2ac6fce..877eae34fb5a 100644 --- a/drivers/input/touchscreen/sur40.c +++ b/drivers/input/touchscreen/sur40.c @@ -672,7 +672,7 @@ static int sur40_probe(struct usb_interface *interface, return -ENODEV; /* Allocate memory for our device state and initialize it. */ - sur40 = kzalloc(sizeof(*sur40), GFP_KERNEL); + sur40 = kzalloc_obj(*sur40); if (!sur40) return -ENOMEM; @@ -1108,8 +1108,6 @@ static const struct vb2_ops sur40_queue_ops = { .buf_queue = sur40_buffer_queue, .start_streaming = sur40_start_streaming, .stop_streaming = sur40_stop_streaming, - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, }; static const struct vb2_queue sur40_queue = { diff --git a/drivers/input/touchscreen/sx8654.c b/drivers/input/touchscreen/sx8654.c index f5c5881cef6b..5fa47a1a6fdc 100644 --- a/drivers/input/touchscreen/sx8654.c +++ b/drivers/input/touchscreen/sx8654.c @@ -116,7 +116,7 @@ static inline void sx865x_penrelease(struct sx8654 *ts) static void sx865x_penrelease_timer_handler(struct timer_list *t) { - struct sx8654 *ts = from_timer(ts, t, timer); + struct sx8654 *ts = timer_container_of(ts, t, timer); unsigned long flags; spin_lock_irqsave(&ts->lock, flags); @@ -290,7 +290,7 @@ static void sx8654_close(struct input_dev *dev) disable_irq(client->irq); if (!sx8654->data->has_irq_penrelease) - del_timer_sync(&sx8654->timer); + timer_delete_sync(&sx8654->timer); /* enable manual mode mode */ error = i2c_smbus_write_byte(client, sx8654->data->cmd_manual); diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index 93d659ff90aa..623546e80668 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -85,7 +85,7 @@ static int titsc_config_wires(struct titsc *ts_dev) wire_order[i] = ts_dev->config_inp[i] & 0x0F; if (WARN_ON(analog_line[i] > 7)) return -EINVAL; - if (WARN_ON(wire_order[i] > ARRAY_SIZE(config_pins))) + if (WARN_ON(wire_order[i] >= ARRAY_SIZE(config_pins))) return -EINVAL; } @@ -389,6 +389,10 @@ static int titsc_parse_dt(struct platform_device *pdev, dev_warn(&pdev->dev, "invalid co-ordinate readouts, resetting it to 5\n"); ts_dev->coordinate_readouts = 5; + } else if (ts_dev->coordinate_readouts > 6) { + dev_warn(&pdev->dev, + "co-ordinate readouts too large, limiting to 6\n"); + ts_dev->coordinate_readouts = 6; } err = of_property_read_u32(node, "ti,charge-delay", @@ -418,7 +422,7 @@ static int titsc_probe(struct platform_device *pdev) int err; /* Allocate memory for device */ - ts_dev = kzalloc(sizeof(*ts_dev), GFP_KERNEL); + ts_dev = kzalloc_obj(*ts_dev); input_dev = input_allocate_device(); if (!ts_dev || !input_dev) { dev_err(&pdev->dev, "failed to allocate memory.\n"); diff --git a/drivers/input/touchscreen/touchit213.c b/drivers/input/touchscreen/touchit213.c index c2718350815c..6d4a1acf57c9 100644 --- a/drivers/input/touchscreen/touchit213.c +++ b/drivers/input/touchscreen/touchit213.c @@ -139,7 +139,7 @@ static int touchit213_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - touchit213 = kzalloc(sizeof(*touchit213), GFP_KERNEL); + touchit213 = kzalloc_obj(*touchit213); input_dev = input_allocate_device(); if (!touchit213 || !input_dev) { err = -ENOMEM; @@ -148,8 +148,8 @@ static int touchit213_connect(struct serio *serio, struct serio_driver *drv) touchit213->serio = serio; touchit213->dev = input_dev; - snprintf(touchit213->phys, sizeof(touchit213->phys), - "%s/input0", serio->phys); + scnprintf(touchit213->phys, sizeof(touchit213->phys), + "%s/input0", serio->phys); input_dev->name = "Sahara Touch-iT213 Serial TouchScreen"; input_dev->phys = touchit213->phys; diff --git a/drivers/input/touchscreen/touchright.c b/drivers/input/touchscreen/touchright.c index 30ba97bd00a1..d7fdf201e4d1 100644 --- a/drivers/input/touchscreen/touchright.c +++ b/drivers/input/touchscreen/touchright.c @@ -102,7 +102,7 @@ static int tr_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - tr = kzalloc(sizeof(*tr), GFP_KERNEL); + tr = kzalloc_obj(*tr); input_dev = input_allocate_device(); if (!tr || !input_dev) { err = -ENOMEM; @@ -111,7 +111,7 @@ static int tr_connect(struct serio *serio, struct serio_driver *drv) tr->serio = serio; tr->dev = input_dev; - snprintf(tr->phys, sizeof(tr->phys), "%s/input0", serio->phys); + scnprintf(tr->phys, sizeof(tr->phys), "%s/input0", serio->phys); input_dev->name = "Touchright Serial TouchScreen"; input_dev->phys = tr->phys; diff --git a/drivers/input/touchscreen/touchwin.c b/drivers/input/touchscreen/touchwin.c index fbd72789ea80..099fd88e65d8 100644 --- a/drivers/input/touchscreen/touchwin.c +++ b/drivers/input/touchscreen/touchwin.c @@ -109,7 +109,7 @@ static int tw_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int err; - tw = kzalloc(sizeof(*tw), GFP_KERNEL); + tw = kzalloc_obj(*tw); input_dev = input_allocate_device(); if (!tw || !input_dev) { err = -ENOMEM; @@ -118,7 +118,7 @@ static int tw_connect(struct serio *serio, struct serio_driver *drv) tw->serio = serio; tw->dev = input_dev; - snprintf(tw->phys, sizeof(tw->phys), "%s/input0", serio->phys); + scnprintf(tw->phys, sizeof(tw->phys), "%s/input0", serio->phys); input_dev->name = "Touchwindow Serial TouchScreen"; input_dev->phys = tw->phys; diff --git a/drivers/input/touchscreen/tsc2007.h b/drivers/input/touchscreen/tsc2007.h index 69b08dd6c8df..e346fb4f7552 100644 --- a/drivers/input/touchscreen/tsc2007.h +++ b/drivers/input/touchscreen/tsc2007.h @@ -19,6 +19,7 @@ #ifndef _TSC2007_H #define _TSC2007_H +#include <linux/input/touchscreen.h> struct gpio_desc; #define TSC2007_MEASURE_TEMP0 (0x0 << 4) @@ -63,6 +64,7 @@ struct tsc2007 { struct i2c_client *client; + struct touchscreen_properties prop; u16 model; u16 x_plate_ohms; u16 max_rt; diff --git a/drivers/input/touchscreen/tsc2007_core.c b/drivers/input/touchscreen/tsc2007_core.c index 8d832a372b89..948935de894b 100644 --- a/drivers/input/touchscreen/tsc2007_core.c +++ b/drivers/input/touchscreen/tsc2007_core.c @@ -23,6 +23,7 @@ #include <linux/input.h> #include <linux/interrupt.h> #include <linux/i2c.h> +#include <linux/math64.h> #include <linux/mod_devicetable.h> #include <linux/property.h> #include <linux/platform_data/tsc2007.h> @@ -68,7 +69,7 @@ static void tsc2007_read_values(struct tsc2007 *tsc, struct ts_event *tc) u32 tsc2007_calculate_resistance(struct tsc2007 *tsc, struct ts_event *tc) { - u32 rt = 0; + u64 rt = 0; /* range filtering */ if (tc->x == MAX_12BIT) @@ -79,11 +80,13 @@ u32 tsc2007_calculate_resistance(struct tsc2007 *tsc, struct ts_event *tc) rt = tc->z2 - tc->z1; rt *= tc->x; rt *= tsc->x_plate_ohms; - rt /= tc->z1; + rt = div_u64(rt, tc->z1); rt = (rt + 2047) >> 12; } - return rt; + if (rt > U32_MAX) + return U32_MAX; + return (u32) rt; } bool tsc2007_is_pen_down(struct tsc2007 *ts) @@ -142,8 +145,7 @@ static irqreturn_t tsc2007_soft_irq(int irq, void *handle) rt = ts->max_rt - rt; input_report_key(input, BTN_TOUCH, 1); - input_report_abs(input, ABS_X, tc.x); - input_report_abs(input, ABS_Y, tc.y); + touchscreen_report_pos(input, &ts->prop, tc.x, tc.y, false); input_report_abs(input, ABS_PRESSURE, rt); input_sync(input); @@ -178,7 +180,8 @@ static void tsc2007_stop(struct tsc2007 *ts) mb(); wake_up(&ts->wait); - disable_irq(ts->irq); + if (ts->irq) + disable_irq(ts->irq); } static int tsc2007_open(struct input_dev *input_dev) @@ -189,7 +192,8 @@ static int tsc2007_open(struct input_dev *input_dev) ts->stopped = false; mb(); - enable_irq(ts->irq); + if (ts->irq) + enable_irq(ts->irq); /* Prepare for touch readings - power down ADC and enable PENIRQ */ err = tsc2007_xfer(ts, PWRDOWN); @@ -254,7 +258,7 @@ static int tsc2007_probe_properties(struct device *dev, struct tsc2007 *ts) if (ts->gpiod) ts->get_pendown_state = tsc2007_get_pendown_state_gpio; else - dev_warn(dev, "Pen down GPIO is not specified in properties\n"); + dev_dbg(dev, "Pen down GPIO is not specified in properties\n"); return 0; } @@ -339,9 +343,9 @@ static int tsc2007_probe(struct i2c_client *client) input_set_drvdata(input_dev, ts); input_set_capability(input_dev, EV_KEY, BTN_TOUCH); - input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, ts->fuzzx, 0); input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, ts->fuzzy, 0); + touchscreen_parse_properties(input_dev, false, &ts->prop); input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT, ts->fuzzz, 0); @@ -362,17 +366,19 @@ static int tsc2007_probe(struct i2c_client *client) pdata->init_platform_hw(); } - err = devm_request_threaded_irq(&client->dev, ts->irq, - NULL, tsc2007_soft_irq, - IRQF_ONESHOT, - client->dev.driver->name, ts); - if (err) { - dev_err(&client->dev, "Failed to request irq %d: %d\n", - ts->irq, err); - return err; - } + if (ts->irq) { + err = devm_request_threaded_irq(&client->dev, ts->irq, + NULL, tsc2007_soft_irq, + IRQF_ONESHOT, + client->dev.driver->name, ts); + if (err) { + dev_err(&client->dev, "Failed to request irq %d: %d\n", + ts->irq, err); + return err; + } - tsc2007_stop(ts); + tsc2007_stop(ts); + } /* power down the chip (TSC2007_SETUP does not ACK on I2C) */ err = tsc2007_xfer(ts, PWRDOWN); diff --git a/drivers/input/touchscreen/tsc200x-core.c b/drivers/input/touchscreen/tsc200x-core.c index df39dee13e1c..eba53613b005 100644 --- a/drivers/input/touchscreen/tsc200x-core.c +++ b/drivers/input/touchscreen/tsc200x-core.c @@ -10,6 +10,7 @@ * based on TSC2301 driver by Klaus K. Pedersen <klaus.k.pedersen@nokia.com> */ +#include <linux/export.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/input.h> @@ -194,7 +195,7 @@ out: static void tsc200x_penup_timer(struct timer_list *t) { - struct tsc200x *ts = from_timer(ts, t, penup_timer); + struct tsc200x *ts = timer_container_of(ts, t, penup_timer); guard(spinlock_irqsave)(&ts->lock); tsc200x_update_pen_state(ts, 0, 0, 0); @@ -229,7 +230,7 @@ static void __tsc200x_disable(struct tsc200x *ts) guard(disable_irq)(&ts->irq); - del_timer_sync(&ts->penup_timer); + timer_delete_sync(&ts->penup_timer); cancel_delayed_work_sync(&ts->esd_work); } @@ -388,7 +389,7 @@ static void tsc200x_esd_work(struct work_struct *work) dev_info(ts->dev, "TSC200X not responding - resetting\n"); scoped_guard(disable_irq, &ts->irq) { - del_timer_sync(&ts->penup_timer); + timer_delete_sync(&ts->penup_timer); tsc200x_update_pen_state(ts, 0, 0, 0); tsc200x_reset(ts); } diff --git a/drivers/input/touchscreen/tsc40.c b/drivers/input/touchscreen/tsc40.c index 9f485cf57a72..2a28a309eab5 100644 --- a/drivers/input/touchscreen/tsc40.c +++ b/drivers/input/touchscreen/tsc40.c @@ -83,7 +83,7 @@ static int tsc_connect(struct serio *serio, struct serio_driver *drv) struct input_dev *input_dev; int error; - ptsc = kzalloc(sizeof(*ptsc), GFP_KERNEL); + ptsc = kzalloc_obj(*ptsc); input_dev = input_allocate_device(); if (!ptsc || !input_dev) { error = -ENOMEM; @@ -92,7 +92,7 @@ static int tsc_connect(struct serio *serio, struct serio_driver *drv) ptsc->serio = serio; ptsc->dev = input_dev; - snprintf(ptsc->phys, sizeof(ptsc->phys), "%s/input0", serio->phys); + scnprintf(ptsc->phys, sizeof(ptsc->phys), "%s/input0", serio->phys); input_dev->name = "TSC-10/25/40 Serial TouchScreen"; input_dev->phys = ptsc->phys; diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index 7567efabe014..657555c8796c 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -378,7 +378,7 @@ static int mtouch_alloc(struct usbtouch_usb *usbtouch) { struct mtouch_priv *priv; - priv = kmalloc(sizeof(*priv), GFP_KERNEL); + priv = kmalloc_obj(*priv); if (!priv) return -ENOMEM; @@ -938,7 +938,7 @@ static int nexio_alloc(struct usbtouch_usb *usbtouch) struct nexio_priv *priv; int ret = -ENOMEM; - priv = kmalloc(sizeof(*priv), GFP_KERNEL); + priv = kmalloc_obj(*priv); if (!priv) goto out_buf; @@ -1458,7 +1458,7 @@ static int usbtouch_probe(struct usb_interface *intf, if (!endpoint) return -ENXIO; - usbtouch = kzalloc(sizeof(*usbtouch), GFP_KERNEL); + usbtouch = kzalloc_obj(*usbtouch); input_dev = input_allocate_device(); if (!usbtouch || !input_dev) goto out_free; diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c index ed2ca8a689d5..45930d731873 100644 --- a/drivers/input/touchscreen/wacom_w8001.c +++ b/drivers/input/touchscreen/wacom_w8001.c @@ -596,7 +596,7 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv) char basename[64] = "Wacom Serial"; int err, err_pen, err_touch; - w8001 = kzalloc(sizeof(*w8001), GFP_KERNEL); + w8001 = kzalloc_obj(*w8001); input_dev_pen = input_allocate_device(); input_dev_touch = input_allocate_device(); if (!w8001 || !input_dev_pen || !input_dev_touch) { diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c index 88d376090e6e..1e2a6bbb88cb 100644 --- a/drivers/input/touchscreen/wdt87xx_i2c.c +++ b/drivers/input/touchscreen/wdt87xx_i2c.c @@ -1026,10 +1026,8 @@ static int wdt87xx_ts_create_input_device(struct wdt87xx_data *wdt) int error; input = devm_input_allocate_device(dev); - if (!input) { - dev_err(dev, "failed to allocate input device\n"); + if (!input) return -ENOMEM; - } wdt->input = input; input->name = "WDT87xx Touchscreen"; @@ -1053,10 +1051,8 @@ static int wdt87xx_ts_create_input_device(struct wdt87xx_data *wdt) INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); error = input_register_device(input); - if (error) { - dev_err(dev, "failed to register input device: %d\n", error); - return error; - } + if (error) + return dev_err_probe(dev, error, "failed to register input device\n"); return 0; } @@ -1096,10 +1092,8 @@ static int wdt87xx_ts_probe(struct i2c_client *client) NULL, wdt87xx_ts_interrupt, IRQF_ONESHOT, client->name, wdt); - if (error) { - dev_err(&client->dev, "request irq failed: %d\n", error); + if (error) return error; - } return 0; } diff --git a/drivers/input/touchscreen/wm9705.c b/drivers/input/touchscreen/wm9705.c index 4b55d5e1ea0f..96484aae030c 100644 --- a/drivers/input/touchscreen/wm9705.c +++ b/drivers/input/touchscreen/wm9705.c @@ -9,6 +9,7 @@ * Russell King <rmk@arm.linux.org.uk> */ +#include <linux/export.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> diff --git a/drivers/input/touchscreen/wm9712.c b/drivers/input/touchscreen/wm9712.c index 6947714dfefa..087ece57741a 100644 --- a/drivers/input/touchscreen/wm9712.c +++ b/drivers/input/touchscreen/wm9712.c @@ -9,6 +9,7 @@ * Russell King <rmk@arm.linux.org.uk> */ +#include <linux/export.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> diff --git a/drivers/input/touchscreen/wm9713.c b/drivers/input/touchscreen/wm9713.c index a67fbe304f92..6f13f46ce6e6 100644 --- a/drivers/input/touchscreen/wm9713.c +++ b/drivers/input/touchscreen/wm9713.c @@ -9,6 +9,7 @@ * Russell King <rmk@arm.linux.org.uk> */ +#include <linux/export.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c index b25771a8df2b..96354c44af87 100644 --- a/drivers/input/touchscreen/wm97xx-core.c +++ b/drivers/input/touchscreen/wm97xx-core.c @@ -29,6 +29,7 @@ * - Support for async sampling control for noisy LCDs. */ +#include <linux/export.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c index df42fdf36ae3..a360749fa076 100644 --- a/drivers/input/touchscreen/zforce_ts.c +++ b/drivers/input/touchscreen/zforce_ts.c @@ -747,8 +747,7 @@ static int zforce_probe(struct i2c_client *client) input_dev = devm_input_allocate_device(&client->dev); if (!input_dev) - return dev_err_probe(&client->dev, -ENOMEM, - "could not allocate input device\n"); + return -ENOMEM; ts->client = client; ts->input = input_dev; |