[PATCH 3/3] i2c: mux: gpio: don't fiddle with GPIOLIB internals

From: Bartosz Golaszewski
Date: Wed Oct 11 2023 - 09:02:25 EST


From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>

Use the relevant API functions to retrieve the address of the
underlying struct device instead of accessing GPIOLIB private structures
manually.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
---
drivers/i2c/muxes/i2c-mux-gpio.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
index 5d5cbe0130cd..48a872a8196b 100644
--- a/drivers/i2c/muxes/i2c-mux-gpio.c
+++ b/drivers/i2c/muxes/i2c-mux-gpio.c
@@ -14,8 +14,7 @@
#include <linux/slab.h>
#include <linux/bits.h>
#include <linux/gpio/consumer.h>
-/* FIXME: stop poking around inside gpiolib */
-#include "../../gpio/gpiolib.h"
+#include <linux/gpio/driver.h>

struct gpiomux {
struct i2c_mux_gpio_platform_data data;
@@ -176,7 +175,8 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev)
}

for (i = 0; i < ngpios; i++) {
- struct device *gpio_dev;
+ struct gpio_device *gdev;
+ struct device *dev;
struct gpio_desc *gpiod;
enum gpiod_flags flag;

@@ -195,9 +195,9 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev)
if (!muxc->mux_locked)
continue;

- /* FIXME: find a proper way to access the GPIO device */
- gpio_dev = &gpiod->gdev->dev;
- muxc->mux_locked = i2c_root_adapter(gpio_dev) == root;
+ gdev = gpiod_to_gpio_device(gpiod);
+ dev = gpio_device_to_device(gdev);
+ muxc->mux_locked = i2c_root_adapter(dev) == root;
}

if (muxc->mux_locked)
--
2.39.2