mfd: Remove gpio support from tps6586x core driver
The GPIO functionality of device tps6586x is added through
platform gpio driver and it can be register as the mfd sub
device and hence removing the duplicates code which register
the gpio functionality from core driver.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 6258bf0..12c693b 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -198,7 +198,7 @@
config MFD_TPS6586X
bool "TPS6586x Power Management chips"
- depends on I2C=y && GPIOLIB && GENERIC_HARDIRQS
+ depends on I2C=y && GENERIC_HARDIRQS
select MFD_CORE
select REGMAP_I2C
depends on REGULATOR
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index d59bfb7..353c348 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 @@
[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 @@
}
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 @@
}
}
- 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 @@
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;
-
- 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);
+ mfd_remove_devices(tps6586x->dev);
+ if (client->irq)
+ free_irq(client->irq, tps6586x);
return 0;
}