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authorLinus Walleij <linus.walleij@linaro.org>2015-12-08 16:26:28 +0100
committerLinus Walleij <linus.walleij@linaro.org>2016-01-07 00:10:21 +0100
commit47513c2ff86e2afd345a9aea3c5626f71cf2f4e9 (patch)
tree2c4298cac4dcab084accad6786d4fdd11566bbc4 /drivers/hid/hid-cp2112.c
parent78d455a2e41fa3de9e1d2d3696cefcb7d6c9c5c4 (diff)
downloadlinux-47513c2ff86e2afd345a9aea3c5626f71cf2f4e9.tar.gz
hid: cp2112: use gpiochip data pointer
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: linux-input@vger.kernel.org Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/hid/hid-cp2112.c')
-rw-r--r--drivers/hid/hid-cp2112.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c
index f47954e8fd2c..0ccdd37e121a 100644
--- a/drivers/hid/hid-cp2112.c
+++ b/drivers/hid/hid-cp2112.c
@@ -24,7 +24,7 @@
* http://www.silabs.com/Support%20Documents/TechnicalDocs/AN495.pdf
*/
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/hid.h>
#include <linux/i2c.h>
#include <linux/module.h>
@@ -169,8 +169,7 @@ MODULE_PARM_DESC(gpio_push_pull, "GPIO push-pull configuration bitmask");
static int cp2112_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
- struct cp2112_device *dev = container_of(chip, struct cp2112_device,
- gc);
+ struct cp2112_device *dev = gpiochip_get_data(chip);
struct hid_device *hdev = dev->hdev;
u8 buf[5];
int ret;
@@ -198,8 +197,7 @@ static int cp2112_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
static void cp2112_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
- struct cp2112_device *dev = container_of(chip, struct cp2112_device,
- gc);
+ struct cp2112_device *dev = gpiochip_get_data(chip);
struct hid_device *hdev = dev->hdev;
u8 buf[3];
int ret;
@@ -216,8 +214,7 @@ static void cp2112_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int cp2112_gpio_get(struct gpio_chip *chip, unsigned offset)
{
- struct cp2112_device *dev = container_of(chip, struct cp2112_device,
- gc);
+ struct cp2112_device *dev = gpiochip_get_data(chip);
struct hid_device *hdev = dev->hdev;
u8 buf[2];
int ret;
@@ -235,8 +232,7 @@ static int cp2112_gpio_get(struct gpio_chip *chip, unsigned offset)
static int cp2112_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
- struct cp2112_device *dev = container_of(chip, struct cp2112_device,
- gc);
+ struct cp2112_device *dev = gpiochip_get_data(chip);
struct hid_device *hdev = dev->hdev;
u8 buf[5];
int ret;
@@ -1106,7 +1102,7 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
dev->gc.can_sleep = 1;
dev->gc.parent = &hdev->dev;
- ret = gpiochip_add(&dev->gc);
+ ret = gpiochip_add_data(&dev->gc, dev);
if (ret < 0) {
hid_err(hdev, "error registering gpio chip\n");
goto err_free_i2c;