From 6c0690ecb682c94b958e0328c46bfcfd95c7698c Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Wed, 5 Mar 2014 11:57:00 +0000 Subject: iio: Add ABI documentation for proximity has been in use for a long time, but never documented proximity is unit-less, except otherwise stated, see e.g. the as3935 driver where it is meter Signed-off-by: Peter Meerwald Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-iio | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index a9757dcf2e81..738b56f862b4 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -895,6 +895,19 @@ Description: on-chip EEPROM. After power-up or chip reset the device will automatically load the saved configuration. +What: /sys/.../iio:deviceX/in_proximity_raw +What: /sys/.../iio:deviceX/in_proximity_input +What: /sys/.../iio:deviceX/in_proximityY_raw +KernelVersion: 3.4 +Contact: linux-iio@vger.kernel.org +Description: + Proximity measurement indicating that some + object is near the sensor, usually be observing + reflectivity of infrared or ultrasound emitted. + Often these sensors are unit less and as such conversion + to SI units is not possible. Where it is, the units should + be meters. + What: /sys/.../iio:deviceX/in_illuminanceY_input What: /sys/.../iio:deviceX/in_illuminanceY_raw What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw -- cgit v1.2.3 From 2192c6f9496eec8b9c5c6084ee6c74f323f0297c Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Sat, 6 Dec 2014 06:00:00 +0000 Subject: iio: Move documentation of iio-trig-sysfs to ABI/testing iio-trig-sysfs has left staging with commit e64e7d5c Signed-off-by: Peter Meerwald Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs | 11 +++++++++++ drivers/staging/iio/Documentation/sysfs-bus-iio-trigger-sysfs | 11 ----------- 2 files changed, 11 insertions(+), 11 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs delete mode 100644 drivers/staging/iio/Documentation/sysfs-bus-iio-trigger-sysfs (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs b/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs new file mode 100644 index 000000000000..5235e6c749ab --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs @@ -0,0 +1,11 @@ +What: /sys/bus/iio/devices/triggerX/trigger_now +KernelVersion: 2.6.38 +Contact: linux-iio@vger.kernel.org +Description: + This file is provided by the iio-trig-sysfs stand-alone trigger + driver. Writing this file with any value triggers an event + driven driver, associated with this trigger, to capture data + into an in kernel buffer. This approach can be valuable during + automated testing or in situations, where other trigger methods + are not applicable. For example no RTC or spare GPIOs. + X is the IIO index of the trigger. diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-trigger-sysfs b/drivers/staging/iio/Documentation/sysfs-bus-iio-trigger-sysfs deleted file mode 100644 index 5235e6c749ab..000000000000 --- a/drivers/staging/iio/Documentation/sysfs-bus-iio-trigger-sysfs +++ /dev/null @@ -1,11 +0,0 @@ -What: /sys/bus/iio/devices/triggerX/trigger_now -KernelVersion: 2.6.38 -Contact: linux-iio@vger.kernel.org -Description: - This file is provided by the iio-trig-sysfs stand-alone trigger - driver. Writing this file with any value triggers an event - driven driver, associated with this trigger, to capture data - into an in kernel buffer. This approach can be valuable during - automated testing or in situations, where other trigger methods - are not applicable. For example no RTC or spare GPIOs. - X is the IIO index of the trigger. -- cgit v1.2.3 From fc167f62483325aea9137e70e6773fe7ad1ca2ac Mon Sep 17 00:00:00 2001 From: Philippe Reynes Date: Sat, 14 Jun 2014 23:27:00 +0100 Subject: iio: add support of the max1027 This driver add partial support of the maxim 1027/1029/1031. Differential mode is not supported. It was tested on armadeus apf27 board. Signed-off-by: Philippe Reynes Reviewed-by: Hartmut Knaack Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/iio/adc/max1027-adc.txt | 22 + drivers/iio/adc/Kconfig | 9 + drivers/iio/adc/Makefile | 1 + drivers/iio/adc/max1027.c | 521 +++++++++++++++++++++ 4 files changed, 553 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/max1027-adc.txt create mode 100644 drivers/iio/adc/max1027.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt new file mode 100644 index 000000000000..a8770cc6bcad --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt @@ -0,0 +1,22 @@ +* Maxim 1027/1029/1031 Analog to Digital Converter (ADC) + +Required properties: + - compatible: Should be "maxim,max1027" or "maxim,max1029" or "maxim,max1031" + - reg: SPI chip select number for the device + - interrupt-parent: phandle to the parent interrupt controller + see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt + - interrupts: IRQ line for the ADC + see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt + +Recommended properties: +- spi-max-frequency: Definition as per + Documentation/devicetree/bindings/spi/spi-bus.txt + +Example: +adc@0 { + compatible = "maxim,max1027"; + reg = <0>; + interrupt-parent = <&gpio5>; + interrupts = <15 IRQ_TYPE_EDGE_RISING>; + spi-max-frequency = <1000000>; +}; diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index ee9d85e22c48..de6d2f41291d 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -131,6 +131,15 @@ config LP8788_ADC help Say yes here to build support for TI LP8788 ADC. +config MAX1027 + tristate "Maxim max1027 ADC driver" + depends on SPI + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER + help + Say yes here to build support for Maxim SPI ADC models + max1027, max1029 and max1031. + config MAX1363 tristate "Maxim max1363 ADC driver" depends on I2C diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile index 9d60f2deaaaf..38cf5c3f5631 100644 --- a/drivers/iio/adc/Makefile +++ b/drivers/iio/adc/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_AD799X) += ad799x.o obj-$(CONFIG_AT91_ADC) += at91_adc.o obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o +obj-$(CONFIG_MAX1027) += max1027.o obj-$(CONFIG_MAX1363) += max1363.o obj-$(CONFIG_MCP320X) += mcp320x.o obj-$(CONFIG_MCP3422) += mcp3422.o diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c new file mode 100644 index 000000000000..87ee1c7d0b54 --- /dev/null +++ b/drivers/iio/adc/max1027.c @@ -0,0 +1,521 @@ + /* + * iio/adc/max1027.c + * Copyright (C) 2014 Philippe Reynes + * + * based on linux/drivers/iio/ad7923.c + * Copyright 2011 Analog Devices Inc (from AD7923 Driver) + * Copyright 2012 CS Systemes d'Information + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * max1027.c + * + * Partial support for max1027 and similar chips. + */ + +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define MAX1027_CONV_REG BIT(7) +#define MAX1027_SETUP_REG BIT(6) +#define MAX1027_AVG_REG BIT(5) +#define MAX1027_RST_REG BIT(4) + +/* conversion register */ +#define MAX1027_TEMP BIT(0) +#define MAX1027_SCAN_0_N (0x00 << 1) +#define MAX1027_SCAN_N_M (0x01 << 1) +#define MAX1027_SCAN_N (0x02 << 1) +#define MAX1027_NOSCAN (0x03 << 1) +#define MAX1027_CHAN(n) ((n) << 3) + +/* setup register */ +#define MAX1027_UNIPOLAR 0x02 +#define MAX1027_BIPOLAR 0x03 +#define MAX1027_REF_MODE0 (0x00 << 2) +#define MAX1027_REF_MODE1 (0x01 << 2) +#define MAX1027_REF_MODE2 (0x02 << 2) +#define MAX1027_REF_MODE3 (0x03 << 2) +#define MAX1027_CKS_MODE0 (0x00 << 4) +#define MAX1027_CKS_MODE1 (0x01 << 4) +#define MAX1027_CKS_MODE2 (0x02 << 4) +#define MAX1027_CKS_MODE3 (0x03 << 4) + +/* averaging register */ +#define MAX1027_NSCAN_4 0x00 +#define MAX1027_NSCAN_8 0x01 +#define MAX1027_NSCAN_12 0x02 +#define MAX1027_NSCAN_16 0x03 +#define MAX1027_NAVG_4 (0x00 << 2) +#define MAX1027_NAVG_8 (0x01 << 2) +#define MAX1027_NAVG_16 (0x02 << 2) +#define MAX1027_NAVG_32 (0x03 << 2) +#define MAX1027_AVG_EN BIT(4) + +enum max1027_id { + max1027, + max1029, + max1031, +}; + +static const struct spi_device_id max1027_id[] = { + {"max1027", max1027}, + {"max1029", max1029}, + {"max1031", max1031}, + {} +}; +MODULE_DEVICE_TABLE(spi, max1027_id); + +#ifdef CONFIG_OF +static const struct of_device_id max1027_adc_dt_ids[] = { + { .compatible = "maxim,max1027" }, + { .compatible = "maxim,max1029" }, + { .compatible = "maxim,max1031" }, + {}, +}; +MODULE_DEVICE_TABLE(of, max1027_adc_dt_ids); +#endif + +#define MAX1027_V_CHAN(index) \ + { \ + .type = IIO_VOLTAGE, \ + .indexed = 1, \ + .channel = index, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ + .scan_index = index + 1, \ + .scan_type = { \ + .sign = 'u', \ + .realbits = 10, \ + .storagebits = 16, \ + .shift = 2, \ + .endianness = IIO_BE, \ + }, \ + } + +#define MAX1027_T_CHAN \ + { \ + .type = IIO_TEMP, \ + .channel = 0, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ + .scan_index = 0, \ + .scan_type = { \ + .sign = 'u', \ + .realbits = 12, \ + .storagebits = 16, \ + .endianness = IIO_BE, \ + }, \ + } + +static const struct iio_chan_spec max1027_channels[] = { + MAX1027_T_CHAN, + MAX1027_V_CHAN(0), + MAX1027_V_CHAN(1), + MAX1027_V_CHAN(2), + MAX1027_V_CHAN(3), + MAX1027_V_CHAN(4), + MAX1027_V_CHAN(5), + MAX1027_V_CHAN(6), + MAX1027_V_CHAN(7) +}; + +static const struct iio_chan_spec max1029_channels[] = { + MAX1027_T_CHAN, + MAX1027_V_CHAN(0), + MAX1027_V_CHAN(1), + MAX1027_V_CHAN(2), + MAX1027_V_CHAN(3), + MAX1027_V_CHAN(4), + MAX1027_V_CHAN(5), + MAX1027_V_CHAN(6), + MAX1027_V_CHAN(7), + MAX1027_V_CHAN(8), + MAX1027_V_CHAN(9), + MAX1027_V_CHAN(10), + MAX1027_V_CHAN(11) +}; + +static const struct iio_chan_spec max1031_channels[] = { + MAX1027_T_CHAN, + MAX1027_V_CHAN(0), + MAX1027_V_CHAN(1), + MAX1027_V_CHAN(2), + MAX1027_V_CHAN(3), + MAX1027_V_CHAN(4), + MAX1027_V_CHAN(5), + MAX1027_V_CHAN(6), + MAX1027_V_CHAN(7), + MAX1027_V_CHAN(8), + MAX1027_V_CHAN(9), + MAX1027_V_CHAN(10), + MAX1027_V_CHAN(11), + MAX1027_V_CHAN(12), + MAX1027_V_CHAN(13), + MAX1027_V_CHAN(14), + MAX1027_V_CHAN(15) +}; + +static const unsigned long max1027_available_scan_masks[] = { + 0x000001ff, + 0x00000000, +}; + +static const unsigned long max1029_available_scan_masks[] = { + 0x00001fff, + 0x00000000, +}; + +static const unsigned long max1031_available_scan_masks[] = { + 0x0001ffff, + 0x00000000, +}; + +struct max1027_chip_info { + const struct iio_chan_spec *channels; + unsigned int num_channels; + const unsigned long *available_scan_masks; +}; + +static const struct max1027_chip_info max1027_chip_info_tbl[] = { + [max1027] = { + .channels = max1027_channels, + .num_channels = ARRAY_SIZE(max1027_channels), + .available_scan_masks = max1027_available_scan_masks, + }, + [max1029] = { + .channels = max1029_channels, + .num_channels = ARRAY_SIZE(max1029_channels), + .available_scan_masks = max1029_available_scan_masks, + }, + [max1031] = { + .channels = max1031_channels, + .num_channels = ARRAY_SIZE(max1031_channels), + .available_scan_masks = max1031_available_scan_masks, + }, +}; + +struct max1027_state { + const struct max1027_chip_info *info; + struct spi_device *spi; + struct iio_trigger *trig; + __be16 *buffer; + struct mutex lock; + + u8 reg ____cacheline_aligned; +}; + +static int max1027_read_single_value(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val) +{ + int ret; + struct max1027_state *st = iio_priv(indio_dev); + + if (iio_buffer_enabled(indio_dev)) { + dev_warn(&indio_dev->dev, "trigger mode already enabled"); + return -EBUSY; + } + + /* Start acquisition on conversion register write */ + st->reg = MAX1027_SETUP_REG | MAX1027_REF_MODE2 | MAX1027_CKS_MODE2; + ret = spi_write(st->spi, &st->reg, 1); + if (ret < 0) { + dev_err(&indio_dev->dev, + "Failed to configure setup register\n"); + return ret; + } + + /* Configure conversion register with the requested chan */ + st->reg = MAX1027_CONV_REG | MAX1027_CHAN(chan->channel) | + MAX1027_NOSCAN | !!(chan->type == IIO_TEMP); + ret = spi_write(st->spi, &st->reg, 1); + if (ret < 0) { + dev_err(&indio_dev->dev, + "Failed to configure conversion register\n"); + return ret; + } + + /* + * For an unknown reason, when we use the mode "10" (write + * conversion register), the interrupt doesn't occur every time. + * So we just wait 1 ms. + */ + mdelay(1); + + /* Read result */ + ret = spi_read(st->spi, st->buffer, (chan->type == IIO_TEMP) ? 4 : 2); + if (ret < 0) + return ret; + + *val = be16_to_cpu(st->buffer[0]); + + return IIO_VAL_INT; +} + +static int max1027_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + int ret = 0; + struct max1027_state *st = iio_priv(indio_dev); + + mutex_lock(&st->lock); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = max1027_read_single_value(indio_dev, chan, val); + break; + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_TEMP: + *val = 1; + *val2 = 8; + ret = IIO_VAL_FRACTIONAL; + break; + case IIO_VOLTAGE: + *val = 2500; + *val2 = 10; + ret = IIO_VAL_FRACTIONAL_LOG2; + break; + default: + ret = -EINVAL; + break; + } + break; + default: + ret = -EINVAL; + break; + } + + mutex_unlock(&st->lock); + + return ret; +} + +static int max1027_debugfs_reg_access(struct iio_dev *indio_dev, + unsigned reg, unsigned writeval, + unsigned *readval) +{ + struct max1027_state *st = iio_priv(indio_dev); + u8 *val = (u8 *)st->buffer; + + if (readval != NULL) + return -EINVAL; + + *val = (u8)writeval; + return spi_write(st->spi, val, 1); +} + +static int max1027_validate_trigger(struct iio_dev *indio_dev, + struct iio_trigger *trig) +{ + struct max1027_state *st = iio_priv(indio_dev); + + if (st->trig != trig) + return -EINVAL; + + return 0; +} + +static int max1027_set_trigger_state(struct iio_trigger *trig, bool state) +{ + struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); + struct max1027_state *st = iio_priv(indio_dev); + int ret; + + if (state) { + /* Start acquisition on cnvst */ + st->reg = MAX1027_SETUP_REG | MAX1027_CKS_MODE0 | + MAX1027_REF_MODE2; + ret = spi_write(st->spi, &st->reg, 1); + if (ret < 0) + return ret; + + /* Scan from 0 to max */ + st->reg = MAX1027_CONV_REG | MAX1027_CHAN(0) | + MAX1027_SCAN_N_M | MAX1027_TEMP; + ret = spi_write(st->spi, &st->reg, 1); + if (ret < 0) + return ret; + } else { + /* Start acquisition on conversion register write */ + st->reg = MAX1027_SETUP_REG | MAX1027_CKS_MODE2 | + MAX1027_REF_MODE2; + ret = spi_write(st->spi, &st->reg, 1); + if (ret < 0) + return ret; + } + + return 0; +} + +static int max1027_validate_device(struct iio_trigger *trig, + struct iio_dev *indio_dev) +{ + struct iio_dev *indio = iio_trigger_get_drvdata(trig); + + if (indio != indio_dev) + return -EINVAL; + + return 0; +} + +static irqreturn_t max1027_trigger_handler(int irq, void *private) +{ + struct iio_poll_func *pf = (struct iio_poll_func *)private; + struct iio_dev *indio_dev = pf->indio_dev; + struct max1027_state *st = iio_priv(indio_dev); + + pr_debug("%s(irq=%d, private=0x%p)\n", __func__, irq, private); + + /* fill buffer with all channel */ + spi_read(st->spi, st->buffer, indio_dev->masklength * 2); + + iio_push_to_buffers(indio_dev, st->buffer); + + iio_trigger_notify_done(indio_dev->trig); + + return IRQ_HANDLED; +} + +static const struct iio_trigger_ops max1027_trigger_ops = { + .owner = THIS_MODULE, + .validate_device = &max1027_validate_device, + .set_trigger_state = &max1027_set_trigger_state, +}; + +static const struct iio_info max1027_info = { + .driver_module = THIS_MODULE, + .read_raw = &max1027_read_raw, + .validate_trigger = &max1027_validate_trigger, + .debugfs_reg_access = &max1027_debugfs_reg_access, +}; + +static int max1027_probe(struct spi_device *spi) +{ + int ret; + struct iio_dev *indio_dev; + struct max1027_state *st; + + pr_debug("%s: probe(spi = 0x%p)\n", __func__, spi); + + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (indio_dev == NULL) { + pr_err("Can't allocate iio device\n"); + return -ENOMEM; + } + + spi_set_drvdata(spi, indio_dev); + + st = iio_priv(indio_dev); + st->spi = spi; + st->info = &max1027_chip_info_tbl[spi_get_device_id(spi)->driver_data]; + + mutex_init(&st->lock); + + indio_dev->name = spi_get_device_id(spi)->name; + indio_dev->dev.parent = &spi->dev; + indio_dev->info = &max1027_info; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = st->info->channels; + indio_dev->num_channels = st->info->num_channels; + indio_dev->available_scan_masks = st->info->available_scan_masks; + + st->buffer = devm_kmalloc(&indio_dev->dev, + indio_dev->num_channels * 2, + GFP_KERNEL); + if (st->buffer == NULL) { + dev_err(&indio_dev->dev, "Can't allocate bufffer\n"); + return -ENOMEM; + } + + ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time, + &max1027_trigger_handler, NULL); + if (ret < 0) { + dev_err(&indio_dev->dev, "Failed to setup buffer\n"); + return ret; + } + + st->trig = devm_iio_trigger_alloc(&spi->dev, "%s-trigger", + indio_dev->name); + if (st->trig == NULL) { + ret = -ENOMEM; + dev_err(&indio_dev->dev, "Failed to allocate iio trigger\n"); + goto fail_trigger_alloc; + } + + st->trig->ops = &max1027_trigger_ops; + st->trig->dev.parent = &spi->dev; + iio_trigger_set_drvdata(st->trig, indio_dev); + iio_trigger_register(st->trig); + + ret = devm_request_threaded_irq(&spi->dev, spi->irq, + iio_trigger_generic_data_rdy_poll, + NULL, + IRQF_TRIGGER_FALLING, + spi->dev.driver->name, st->trig); + if (ret < 0) { + dev_err(&indio_dev->dev, "Failed to allocate IRQ.\n"); + goto fail_dev_register; + } + + /* Disable averaging */ + st->reg = MAX1027_AVG_REG; + ret = spi_write(st->spi, &st->reg, 1); + if (ret < 0) { + dev_err(&indio_dev->dev, "Failed to configure averaging register\n"); + goto fail_dev_register; + } + + ret = iio_device_register(indio_dev); + if (ret < 0) { + dev_err(&indio_dev->dev, "Failed to register iio device\n"); + goto fail_dev_register; + } + + return 0; + +fail_dev_register: +fail_trigger_alloc: + iio_triggered_buffer_cleanup(indio_dev); + + return ret; +} + +static int max1027_remove(struct spi_device *spi) +{ + struct iio_dev *indio_dev = spi_get_drvdata(spi); + + pr_debug("%s: remove(spi = 0x%p)\n", __func__, spi); + + iio_device_unregister(indio_dev); + iio_triggered_buffer_cleanup(indio_dev); + + return 0; +} + +static struct spi_driver max1027_driver = { + .driver = { + .name = "max1027", + .owner = THIS_MODULE, + }, + .probe = max1027_probe, + .remove = max1027_remove, + .id_table = max1027_id, +}; +module_spi_driver(max1027_driver); + +MODULE_AUTHOR("Philippe Reynes "); +MODULE_DESCRIPTION("MAX1027/MAX1029/MAX1031 ADC"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From cfcd185e708f7a3543b1dc585dfb1a849c019e14 Mon Sep 17 00:00:00 2001 From: Marek Belisko Date: Fri, 14 Feb 2014 14:25:00 +0000 Subject: Documentation: iio: Extend documentation for hmc5843 bindings. Signed-off-by: Marek Belisko Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt b/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt index 90d5f34db04e..b8cbdd517abc 100644 --- a/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt +++ b/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt @@ -3,6 +3,9 @@ Required properties: - compatible : should be "honeywell,hmc5843" + Other models which are supported with driver are: + "honeywell,hmc5883" + "honeywell,hmc5883l" - reg : the I2C address of the magnetometer - typically 0x1e Optional properties: -- cgit v1.2.3 From 0599173e38fe59b64963b9c39d0727c45e6ebefc Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 7 Jul 2014 10:48:00 +0100 Subject: iio: st_sensors: add device tree bindings This adds some basic, simple device tree bindings to the STMicro MEMS sensor drivers. Cc: devicetree@vger.kernel.org Cc: Lee Jones Cc: Denis CIOCCA Signed-off-by: Linus Walleij Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/iio/st-sensors.txt | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/st-sensors.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt new file mode 100644 index 000000000000..a7a0a15913ad --- /dev/null +++ b/Documentation/devicetree/bindings/iio/st-sensors.txt @@ -0,0 +1,54 @@ +STMicroelectronics MEMS sensors + +The STMicroelectronics sensor devices are pretty straight-forward I2C or +SPI devices, all sharing the same device tree descriptions no matter what +type of sensor it is. + +Required properties: +- compatible: see the list of valid compatible strings below +- reg: the I2C or SPI address the device will respond to + +Optional properties: +- vdd-supply: an optional regulator that needs to be on to provide VDD + power to the sensor. +- vddio-supply: an optional regulator that needs to be on to provide the + VDD IO power to the sensor. +- st,drdy-int-pin: the pin on the package that will be used to signal + "data ready" (valid values: 1 or 2). This property is not configurable + on all sensors. + +Sensors may also have applicable pin control settings, those use the +standard bindings from pinctrl/pinctrl-bindings.txt. + +Valid compatible strings: + +Accelerometers: +- st,lsm303dlh-accel +- st,lsm303dlhc-accel +- st,lis3dh-accel +- st,lsm330d-accel +- st,lsm330dl-accel +- st,lsm330dlc-accel +- st,lis331dlh-accel +- st,lsm303dl-accel +- st,lsm303dlm-accel +- st,lsm330-accel + +Gyroscopes: +- st,l3g4200d-gyro +- st,lsm330d-gyro +- st,lsm330dl-gyro +- st,lsm330dlc-gyro +- st,l3gd20-gyro +- st,l3g4is-gyro +- st,lsm330-gyro + +Magnetometers: +- st,lsm303dlhc-magn +- st,lsm303dlm-magn +- st,lis3mdl-magn + +Pressure sensors: +- st,lps001wp-press +- st,lps25h-press +- st,lps331ap-press -- cgit v1.2.3 From 43c44a88b25ef177c3ae30d158ee298f176b0769 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 29 Jun 2014 12:13:05 +0200 Subject: Documentation/kernel-parameters: Remove obsolete ip2= The handling of ip2= in drivers/char/ip2/ip2base.c was moved to drivers/char/ip2/ip2main.c in commit 47babd4c6a16915aeb15d4216d91f03910572982 ("Char: merge ip2main and ip2base"). The ip2 driver was demoted to staging in commit 4a6514e6d096716fb7bedf238efaaca877e2a7e8 ("tty: move obsolete and broken tty drivers to drivers/staging/tty/"), and finally deleted in commit 51c9d654c2def97827395a7fbfd0c6f865c26544 ("Staging: delete tty drivers"). Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman --- Documentation/kernel-parameters.txt | 4 ---- 1 file changed, 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index c1b9aa8c5a52..883bfc99be91 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1416,10 +1416,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted. ip= [IP_PNP] See Documentation/filesystems/nfs/nfsroot.txt. - ip2= [HW] Set IO/IRQ pairs for up to 4 IntelliPort boards - See comment before ip2_setup() in - drivers/char/ip2/ip2base.c. - irqfixup [HW] When an interrupt is not handled search all handlers for it. Intended to get systems with badly broken -- cgit v1.2.3 From a3fb96a8c02ae4fa19d9f68f6f3e6bd53c70cd86 Mon Sep 17 00:00:00 2001 From: Martin Fuzzey Date: Fri, 7 Nov 2014 14:06:00 +0000 Subject: iio: mma8452: add DT support Allow the mma8452 to be described in the device tree. Since no device specific binding attributes exist the trivial I2C binding is sufficient to describe the compatible string. Signed-off-by: Martin Fuzzey Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + drivers/iio/accel/mma8452.c | 6 ++++++ 2 files changed, 7 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index bef86e57c388..1a794213f7d1 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -50,6 +50,7 @@ epson,rx8581 I2C-BUS INTERFACE REAL TIME CLOCK MODULE fsl,mag3110 MAG3110: Xtrinsic High Accuracy, 3D Magnetometer fsl,mc13892 MC13892: Power Management Integrated Circuit (PMIC) for i.MX35/51 fsl,mma8450 MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer +fsl,mma8452 MMA8452Q: 3-axis 12-bit / 8-bit Digital Accelerometer fsl,mpr121 MPR121: Proximity Capacitive Touch Sensor Controller fsl,sgtl5000 SGTL5000: Ultra Low-Power Audio Codec gmt,g751 G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 17aeea170566..9231f8a65e79 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -423,9 +423,15 @@ static const struct i2c_device_id mma8452_id[] = { }; MODULE_DEVICE_TABLE(i2c, mma8452_id); +static const struct of_device_id mma8452_dt_ids[] = { + { .compatible = "fsl,mma8452" }, + { } +}; + static struct i2c_driver mma8452_driver = { .driver = { .name = "mma8452", + .of_match_table = of_match_ptr(mma8452_dt_ids), .pm = MMA8452_PM_OPS, }, .probe = mma8452_probe, -- cgit v1.2.3 From b531db84566644068c49933bf7f6d55932f901ea Mon Sep 17 00:00:00 2001 From: Reyad Attiyat Date: Thu, 17 Jul 2014 19:18:00 +0100 Subject: iio: Documentation: Add documentation for rotation from north sensor usage attributes Added documentation for the sysfs attributes supported by the rotation from north sensor. Signed-off-by: Reyad Attiyat Acked-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-iio | 82 +++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 738b56f862b4..d760b0224ef7 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -260,6 +260,10 @@ What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale +What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale +What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale +What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale +What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale KernelVersion: 2.6.35 @@ -447,6 +451,14 @@ What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en @@ -492,6 +504,14 @@ What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en +What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en @@ -538,6 +558,14 @@ What: /sys/.../events/in_magn_y_raw_thresh_rising_value What: /sys/.../events/in_magn_y_raw_thresh_falling_value What: /sys/.../events/in_magn_z_raw_thresh_rising_value What: /sys/.../events/in_magn_z_raw_thresh_falling_value +What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value +What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value +What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value +What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value +What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value +What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value What: /sys/.../events/in_voltageY_raw_thresh_rising_value @@ -588,6 +616,18 @@ What: /sys/.../events/in_magn_y_thresh_either_hysteresis What: /sys/.../events/in_magn_z_thresh_rising_hysteresis What: /sys/.../events/in_magn_z_thresh_falling_hysteresis What: /sys/.../events/in_magn_z_thresh_either_hysteresis +What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis +What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis +What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis +What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis +What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis +What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis +What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis +What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis +What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis What: /sys/.../events/in_voltageY_thresh_rising_hysteresis What: /sys/.../events/in_voltageY_thresh_falling_hysteresis What: /sys/.../events/in_voltageY_thresh_either_hysteresis @@ -635,6 +675,14 @@ What: /sys/.../events/in_magn_y_raw_roc_rising_value What: /sys/.../events/in_magn_y_raw_roc_falling_value What: /sys/.../events/in_magn_z_raw_roc_rising_value What: /sys/.../events/in_magn_z_raw_roc_falling_value +What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value +What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value +What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value +What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value +What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value +What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value What: /sys/.../events/in_voltageY_raw_roc_rising_value @@ -690,6 +738,22 @@ What: /sys/.../events/in_magn_z_thresh_rising_period What: /sys/.../events/in_magn_z_thresh_falling_period What: /sys/.../events/in_magn_z_roc_rising_period What: /sys/.../events/in_magn_z_roc_falling_period +What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period +What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period +What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period +What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period +What: /sys/.../events/in_rot_from_north_true_thresh_rising_period +What: /sys/.../events/in_rot_from_north_true_thresh_falling_period +What: /sys/.../events/in_rot_from_north_true_roc_rising_period +What: /sys/.../events/in_rot_from_north_true_roc_falling_period +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period +What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period +What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period +What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period +What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period +What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period What: /sys/.../events/in_voltageY_supply_thresh_rising_period What: /sys/.../events/in_voltageY_supply_thresh_falling_period What: /sys/.../events/in_voltageY_supply_roc_rising_period @@ -787,6 +851,10 @@ What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en +What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en +What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en +What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en +What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en @@ -853,6 +921,10 @@ What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index +What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index +What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index +What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index +What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index @@ -946,3 +1018,13 @@ Description: x y z w. Here x, y, and z component represents the axis about which a rotation will occur and w component represents the amount of rotation. + +What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw +What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw +What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw +What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw +KernelVersion: 3.15 +Contact: linux-iio@vger.kernel.org +Description: + Raw value of rotation from true/magnetic north measured with + or without compensation from tilt sensors. -- cgit v1.2.3 From 5a059bd268a79376ebf9ea539c5bb645c5a854d5 Mon Sep 17 00:00:00 2001 From: Josef Gajdusek Date: Tue, 22 Jul 2014 16:02:00 +0100 Subject: staging:iio:hmc5843: Add support for i2c hmc5983 This patch adds support for the hmc5983 i2c interface. This chip is almost identical to the hmc5883. The difference being added temperature compensation, additional available sample rate (220Hz) and an SPI interface. Signed-off-by: Josef Gajdusek Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/iio/magnetometer/hmc5843.txt | 1 + drivers/staging/iio/magnetometer/Kconfig | 2 +- drivers/staging/iio/magnetometer/hmc5843.h | 1 + drivers/staging/iio/magnetometer/hmc5843_core.c | 20 +++++++++++++++++--- drivers/staging/iio/magnetometer/hmc5843_i2c.c | 6 ++++-- 5 files changed, 24 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt b/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt index b8cbdd517abc..8e191eef014e 100644 --- a/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt +++ b/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt @@ -6,6 +6,7 @@ Required properties: Other models which are supported with driver are: "honeywell,hmc5883" "honeywell,hmc5883l" + "honeywell,hmc5983" - reg : the I2C address of the magnetometer - typically 0x1e Optional properties: diff --git a/drivers/staging/iio/magnetometer/Kconfig b/drivers/staging/iio/magnetometer/Kconfig index 0a27f987c201..c086f33b6311 100644 --- a/drivers/staging/iio/magnetometer/Kconfig +++ b/drivers/staging/iio/magnetometer/Kconfig @@ -20,6 +20,6 @@ config SENSORS_HMC5843_I2C This driver can also be compiled as a set of modules. If so, these modules will be created: - hmc5843_core (core functions) - - hmc5843_i2c (support for HMC5843, HMC5883 and HMC5883L) + - hmc5843_i2c (support for HMC5843, HMC5883, HMC5883L and HMC5983) endmenu diff --git a/drivers/staging/iio/magnetometer/hmc5843.h b/drivers/staging/iio/magnetometer/hmc5843.h index 06b2712a67fd..b784e3eb4591 100644 --- a/drivers/staging/iio/magnetometer/hmc5843.h +++ b/drivers/staging/iio/magnetometer/hmc5843.h @@ -29,6 +29,7 @@ enum hmc5843_ids { HMC5843_ID, HMC5883_ID, HMC5883L_ID, + HMC5983_ID, }; struct hmc5843_data { diff --git a/drivers/staging/iio/magnetometer/hmc5843_core.c b/drivers/staging/iio/magnetometer/hmc5843_core.c index 08fb0be100ff..914ae1acd31d 100644 --- a/drivers/staging/iio/magnetometer/hmc5843_core.c +++ b/drivers/staging/iio/magnetometer/hmc5843_core.c @@ -101,6 +101,11 @@ static const int hmc5883_regval_to_samp_freq[][2] = { {75, 0} }; +static const int hmc5983_regval_to_samp_freq[][2] = { + {0, 750000}, {1, 500000}, {3, 0}, {7, 500000}, {15, 0}, {30, 0}, + {75, 0}, {220, 0} +}; + /* Describe chip variants */ struct hmc5843_chip_info { const struct iio_chan_spec *channels; @@ -457,7 +462,7 @@ static const struct iio_chan_spec hmc5843_channels[] = { IIO_CHAN_SOFT_TIMESTAMP(3), }; -/* Beware: Y and Z are exchanged on HMC5883 */ +/* Beware: Y and Z are exchanged on HMC5883 and 5983 */ static const struct iio_chan_spec hmc5883_channels[] = { HMC5843_CHANNEL(X, 0), HMC5843_CHANNEL(Z, 1), @@ -504,6 +509,15 @@ static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = { .n_regval_to_nanoscale = ARRAY_SIZE(hmc5883l_regval_to_nanoscale), }, + [HMC5983_ID] = { + .channels = hmc5883_channels, + .regval_to_samp_freq = hmc5983_regval_to_samp_freq, + .n_regval_to_samp_freq = + ARRAY_SIZE(hmc5983_regval_to_samp_freq), + .regval_to_nanoscale = hmc5883l_regval_to_nanoscale, + .n_regval_to_nanoscale = + ARRAY_SIZE(hmc5883l_regval_to_nanoscale), + } }; static int hmc5843_init(struct hmc5843_data *data) @@ -516,7 +530,7 @@ static int hmc5843_init(struct hmc5843_data *data) if (ret < 0) return ret; if (id[0] != 'H' || id[1] != '4' || id[2] != '3') { - dev_err(data->dev, "no HMC5843/5883/5883L sensor\n"); + dev_err(data->dev, "no HMC5843/5883/5883L/5983 sensor\n"); return -ENODEV; } @@ -620,5 +634,5 @@ int hmc5843_common_remove(struct device *dev) EXPORT_SYMBOL(hmc5843_common_remove); MODULE_AUTHOR("Shubhrajyoti Datta "); -MODULE_DESCRIPTION("HMC5843/5883/5883L core driver"); +MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 core driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/staging/iio/magnetometer/hmc5843_i2c.c b/drivers/staging/iio/magnetometer/hmc5843_i2c.c index 5593a7d93a1b..6acd614cdbc6 100644 --- a/drivers/staging/iio/magnetometer/hmc5843_i2c.c +++ b/drivers/staging/iio/magnetometer/hmc5843_i2c.c @@ -1,5 +1,5 @@ /* - * i2c driver for hmc5843/5843/5883/5883l + * i2c driver for hmc5843/5843/5883/5883l/5983 * * Split from hmc5843.c * Copyright (C) Josef Gajdusek @@ -73,6 +73,7 @@ static const struct i2c_device_id hmc5843_id[] = { { "hmc5843", HMC5843_ID }, { "hmc5883", HMC5883_ID }, { "hmc5883l", HMC5883L_ID }, + { "hmc5983", HMC5983_ID }, { } }; MODULE_DEVICE_TABLE(i2c, hmc5843_id); @@ -81,6 +82,7 @@ static const struct of_device_id hmc5843_of_match[] = { { .compatible = "honeywell,hmc5843", .data = (void *)HMC5843_ID }, { .compatible = "honeywell,hmc5883", .data = (void *)HMC5883_ID }, { .compatible = "honeywell,hmc5883l", .data = (void *)HMC5883L_ID }, + { .compatible = "honeywell,hmc5983", .data = (void *)HMC5983_ID }, {} }; MODULE_DEVICE_TABLE(of, hmc5843_of_match); @@ -98,5 +100,5 @@ static struct i2c_driver hmc5843_driver = { module_i2c_driver(hmc5843_driver); MODULE_AUTHOR("Josef Gajdusek "); -MODULE_DESCRIPTION("HMC5843/5883/5883L i2c driver"); +MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 i2c driver"); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 0af34eec8fcd40acaa070d85f26d5411ec245485 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Tue, 22 Jul 2014 03:04:00 +0100 Subject: iio: devicetree: Add DT binding documentation for Exynos3250 ADC This patch add DT binding documentation for Exynos3250 ADC IP. Exynos3250 has special clock ('sclk_adc') for ADC which provide clock to internal ADC. Signed-off-by: Chanwoo Choi Acked-by: Kyungmin Park Reviewed-by: Naveen Krishna Chatradhi Reviewed-by: Tomasz Figa Acked-by: Kukjin Kim Acked-by: Arnd Bergmann Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/arm/samsung/exynos-adc.txt | 25 ++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt index 832fe8cc24d7..adc61b095bd1 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt @@ -14,14 +14,21 @@ Required properties: for exynos4412/5250 controllers. Must be "samsung,exynos-adc-v2" for future controllers. + Must be "samsung,exynos3250-adc" for + controllers compatible with ADC of Exynos3250. - reg: Contains ADC register address range (base address and length) and the address of the phy enable register. - interrupts: Contains the interrupt information for the timer. The format is being dependent on which interrupt controller the Samsung device uses. - #io-channel-cells = <1>; As ADC has multiple outputs -- clocks From common clock binding: handle to adc clock. -- clock-names From common clock binding: Shall be "adc". +- clocks From common clock bindings: handles to clocks specified + in "clock-names" property, in the same order. +- clock-names From common clock bindings: list of clock input names + used by ADC block: + - "adc" : ADC bus clock + - "sclk" : ADC special clock (only for Exynos3250 and + compatible ADC block) - vdd-supply VDD input supply. Note: child nodes can be added for auto probing from device tree. @@ -41,6 +48,20 @@ adc: adc@12D10000 { vdd-supply = <&buck5_reg>; }; +Example: adding device info in dtsi file for Exynos3250 with additional sclk + +adc: adc@126C0000 { + compatible = "samsung,exynos3250-adc", "samsung,exynos-adc-v2; + reg = <0x126C0000 0x100>, <0x10020718 0x4>; + interrupts = <0 137 0>; + #io-channel-cells = <1>; + io-channel-ranges; + + clocks = <&cmu CLK_TSADC>, <&cmu CLK_SCLK_TSADC>; + clock-names = "adc", "sclk"; + + vdd-supply = <&buck5_reg>; +}; Example: Adding child nodes in dts file -- cgit v1.2.3