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path: root/drivers/mfd/tps6586x.c
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Diffstat (limited to 'drivers/mfd/tps6586x.c')
-rw-r--r--drivers/mfd/tps6586x.c107
1 files changed, 21 insertions, 86 deletions
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index d59bfb77326b..353c34812120 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -22,7 +22,6 @@
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
@@ -30,10 +29,6 @@
#include <linux/mfd/core.h>
#include <linux/mfd/tps6586x.h>
-/* GPIO control registers */
-#define TPS6586X_GPIOSET1 0x5d
-#define TPS6586X_GPIOSET2 0x5e
-
/* interrupt control registers */
#define TPS6586X_INT_ACK1 0xb5
#define TPS6586X_INT_ACK2 0xb6
@@ -94,12 +89,23 @@ static const struct tps6586x_irq_data tps6586x_irqs[] = {
[TPS6586X_INT_RTC_ALM2] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 1),
};
+static struct mfd_cell tps6586x_cell[] = {
+ {
+ .name = "tps6586x-gpio",
+ },
+ {
+ .name = "tps6586x-rtc",
+ },
+ {
+ .name = "tps6586x-onkey",
+ },
+};
+
struct tps6586x {
struct device *dev;
struct i2c_client *client;
struct regmap *regmap;
- struct gpio_chip gpio;
struct irq_chip irq_chip;
struct mutex irq_lock;
int irq_base;
@@ -173,63 +179,6 @@ int tps6586x_update(struct device *dev, int reg, uint8_t val, uint8_t mask)
}
EXPORT_SYMBOL_GPL(tps6586x_update);
-static int tps6586x_gpio_get(struct gpio_chip *gc, unsigned offset)
-{
- struct tps6586x *tps6586x = container_of(gc, struct tps6586x, gpio);
- uint8_t val;
- int ret;
-
- ret = tps6586x_read(tps6586x->dev, TPS6586X_GPIOSET2, &val);
- if (ret)
- return ret;
-
- return !!(val & (1 << offset));
-}
-
-
-static void tps6586x_gpio_set(struct gpio_chip *chip, unsigned offset,
- int value)
-{
- struct tps6586x *tps6586x = container_of(chip, struct tps6586x, gpio);
-
- tps6586x_update(tps6586x->dev, TPS6586X_GPIOSET2,
- value << offset, 1 << offset);
-}
-
-static int tps6586x_gpio_output(struct gpio_chip *gc, unsigned offset,
- int value)
-{
- struct tps6586x *tps6586x = container_of(gc, struct tps6586x, gpio);
- uint8_t val, mask;
-
- tps6586x_gpio_set(gc, offset, value);
-
- val = 0x1 << (offset * 2);
- mask = 0x3 << (offset * 2);
-
- return tps6586x_update(tps6586x->dev, TPS6586X_GPIOSET1, val, mask);
-}
-
-static int tps6586x_gpio_init(struct tps6586x *tps6586x, int gpio_base)
-{
- if (!gpio_base)
- return 0;
-
- tps6586x->gpio.owner = THIS_MODULE;
- tps6586x->gpio.label = tps6586x->client->name;
- tps6586x->gpio.dev = tps6586x->dev;
- tps6586x->gpio.base = gpio_base;
- tps6586x->gpio.ngpio = 4;
- tps6586x->gpio.can_sleep = 1;
-
- /* FIXME: add handling of GPIOs as dedicated inputs */
- tps6586x->gpio.direction_output = tps6586x_gpio_output;
- tps6586x->gpio.set = tps6586x_gpio_set;
- tps6586x->gpio.get = tps6586x_gpio_get;
-
- return gpiochip_add(&tps6586x->gpio);
-}
-
static int __remove_subdev(struct device *dev, void *unused)
{
platform_device_unregister(to_platform_device(dev));
@@ -543,10 +492,11 @@ static int __devinit tps6586x_i2c_probe(struct i2c_client *client,
}
}
- ret = tps6586x_gpio_init(tps6586x, pdata->gpio_base);
- if (ret) {
- dev_err(&client->dev, "GPIO registration failed: %d\n", ret);
- goto err_gpio_init;
+ ret = mfd_add_devices(tps6586x->dev, -1,
+ tps6586x_cell, ARRAY_SIZE(tps6586x_cell), NULL, 0);
+ if (ret < 0) {
+ dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret);
+ goto err_mfd_add;
}
ret = tps6586x_add_subdevs(tps6586x, pdata);
@@ -558,36 +508,21 @@ static int __devinit tps6586x_i2c_probe(struct i2c_client *client,
return 0;
err_add_devs:
- if (pdata->gpio_base) {
- ret = gpiochip_remove(&tps6586x->gpio);
- if (ret)
- dev_err(&client->dev, "Can't remove gpio chip: %d\n",
- ret);
- }
-err_gpio_init:
+ mfd_remove_devices(tps6586x->dev);
+err_mfd_add:
if (client->irq)
free_irq(client->irq, tps6586x);
-
return ret;
}
static int __devexit tps6586x_i2c_remove(struct i2c_client *client)
{
struct tps6586x *tps6586x = i2c_get_clientdata(client);
- struct tps6586x_platform_data *pdata = client->dev.platform_data;
- int ret;
+ tps6586x_remove_subdevs(tps6586x);
+ mfd_remove_devices(tps6586x->dev);
if (client->irq)
free_irq(client->irq, tps6586x);
-
- if (pdata->gpio_base) {
- ret = gpiochip_remove(&tps6586x->gpio);
- if (ret)
- dev_err(&client->dev, "Can't remove gpio chip: %d\n",
- ret);
- }
-
- tps6586x_remove_subdevs(tps6586x);
return 0;
}