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media: i2c: s5k6a3: switch to using gpiod API 

This patch switches the driver away from legacy gpio/of_gpio API to
gpiod API, and removes one of the last uses of of_get_gpio_flags().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Dmitry Torokhov 2022-11-15 14:11:42 -08:00 committed by Hans Verkuil
parent 932d87c6ea
commit 87b5aeeb49
1 changed files with 11 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/media/i2c/s5k6a3.c
View File

@ -9,12 +9,12 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_gpio.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
@ -59,7 +59,7 @@ struct s5k6a3 {
struct v4l2_subdev subdev;
struct media_pad pad;
struct regulator_bulk_data supplies[S5K6A3_NUM_SUPPLIES];
int gpio_reset;
struct gpio_desc *gpio_reset;
struct mutex lock;
struct v4l2_mbus_framefmt format;
struct clk *clock;
@ -216,11 +216,11 @@ static int __s5k6a3_power_on(struct s5k6a3 *sensor)
goto error_clk;
}
gpio_set_value(sensor->gpio_reset, 1);
gpiod_set_value_cansleep(sensor->gpio_reset, 0);
usleep_range(600, 800);
gpio_set_value(sensor->gpio_reset, 0);
gpiod_set_value_cansleep(sensor->gpio_reset, 1);
usleep_range(600, 800);
gpio_set_value(sensor->gpio_reset, 1);
gpiod_set_value_cansleep(sensor->gpio_reset, 0);
/* Delay needed for the sensor initialization */
msleep(20);
@ -240,7 +240,7 @@ static int __s5k6a3_power_off(struct s5k6a3 *sensor)
{
int i;
gpio_set_value(sensor->gpio_reset, 0);
gpiod_set_value_cansleep(sensor->gpio_reset, 1);
for (i = S5K6A3_NUM_SUPPLIES - 1; i >= 0; i--)
regulator_disable(sensor->supplies[i].consumer);
@ -285,32 +285,24 @@ static int s5k6a3_probe(struct i2c_client *client)
struct device *dev = &client->dev;
struct s5k6a3 *sensor;
struct v4l2_subdev *sd;
int gpio, i, ret;
int i, ret;
sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
if (!sensor)
return -ENOMEM;
mutex_init(&sensor->lock);
sensor->gpio_reset = -EINVAL;
sensor->clock = ERR_PTR(-EINVAL);
sensor->dev = dev;
sensor->clock = devm_clk_get(sensor->dev, S5K6A3_CLK_NAME);
if (IS_ERR(sensor->clock))
return PTR_ERR(sensor->clock);
gpio = of_get_gpio_flags(dev->of_node, 0, NULL);
if (!gpio_is_valid(gpio))
return gpio;
ret = devm_gpio_request_one(dev, gpio, GPIOF_OUT_INIT_LOW,
S5K6A3_DRV_NAME);
if (ret < 0)
sensor->gpio_reset = devm_gpiod_get(dev, NULL, GPIOD_OUT_HIGH);
ret = PTR_ERR_OR_ZERO(sensor->gpio_reset);
if (ret)
return ret;
sensor->gpio_reset = gpio;
if (of_property_read_u32(dev->of_node, "clock-frequency",
&sensor->clock_frequency)) {
sensor->clock_frequency = S5K6A3_DEFAULT_CLK_FREQ;