media: i2c: s5k5baf: switch to using gpiod API
This patch switches the driver away from legacy gpio/of_gpio API to gpiod API, and removes use of of_get_named_gpio_flags() which I want to make private to gpiolib. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Родитель
87b5aeeb49
Коммит
4220dd61e7
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@ -13,11 +13,10 @@
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#include <linux/clk.h>
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/delay.h>
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#include <linux/firmware.h>
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#include <linux/firmware.h>
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#include <linux/gpio.h>
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#include <linux/gpio/consumer.h>
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#include <linux/i2c.h>
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#include <linux/i2c.h>
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#include <linux/media.h>
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#include <linux/media.h>
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/of_gpio.h>
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#include <linux/of_graph.h>
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#include <linux/of_graph.h>
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#include <linux/regulator/consumer.h>
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#include <linux/regulator/consumer.h>
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#include <linux/slab.h>
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#include <linux/slab.h>
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@ -228,11 +227,6 @@ static const char * const s5k5baf_supply_names[] = {
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};
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};
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#define S5K5BAF_NUM_SUPPLIES ARRAY_SIZE(s5k5baf_supply_names)
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#define S5K5BAF_NUM_SUPPLIES ARRAY_SIZE(s5k5baf_supply_names)
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struct s5k5baf_gpio {
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int gpio;
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int level;
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};
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enum s5k5baf_gpio_id {
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enum s5k5baf_gpio_id {
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STBY,
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STBY,
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RSET,
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RSET,
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@ -284,7 +278,7 @@ struct s5k5baf_fw {
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};
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};
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struct s5k5baf {
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struct s5k5baf {
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struct s5k5baf_gpio gpios[NUM_GPIOS];
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struct gpio_desc *gpios[NUM_GPIOS];
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enum v4l2_mbus_type bus_type;
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enum v4l2_mbus_type bus_type;
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u8 nlanes;
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u8 nlanes;
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struct regulator_bulk_data supplies[S5K5BAF_NUM_SUPPLIES];
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struct regulator_bulk_data supplies[S5K5BAF_NUM_SUPPLIES];
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@ -936,16 +930,12 @@ static void s5k5baf_hw_set_test_pattern(struct s5k5baf *state, int id)
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static void s5k5baf_gpio_assert(struct s5k5baf *state, int id)
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static void s5k5baf_gpio_assert(struct s5k5baf *state, int id)
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{
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{
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struct s5k5baf_gpio *gpio = &state->gpios[id];
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gpiod_set_value_cansleep(state->gpios[id], 1);
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gpio_set_value(gpio->gpio, gpio->level);
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}
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}
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static void s5k5baf_gpio_deassert(struct s5k5baf *state, int id)
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static void s5k5baf_gpio_deassert(struct s5k5baf *state, int id)
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{
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{
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struct s5k5baf_gpio *gpio = &state->gpios[id];
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gpiod_set_value_cansleep(state->gpios[id], 0);
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gpio_set_value(gpio->gpio, !gpio->level);
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}
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}
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static int s5k5baf_power_on(struct s5k5baf *state)
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static int s5k5baf_power_on(struct s5k5baf *state)
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@ -1799,44 +1789,30 @@ static const struct v4l2_subdev_ops s5k5baf_subdev_ops = {
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static int s5k5baf_configure_gpios(struct s5k5baf *state)
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static int s5k5baf_configure_gpios(struct s5k5baf *state)
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{
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{
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static const char * const name[] = { "S5K5BAF_STBY", "S5K5BAF_RST" };
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static const char * const name[] = { "stbyn", "rstn" };
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static const char * const label[] = { "S5K5BAF_STBY", "S5K5BAF_RST" };
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struct i2c_client *c = v4l2_get_subdevdata(&state->sd);
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struct i2c_client *c = v4l2_get_subdevdata(&state->sd);
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struct s5k5baf_gpio *g = state->gpios;
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struct gpio_desc *gpio;
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int ret, i;
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int ret, i;
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for (i = 0; i < NUM_GPIOS; ++i) {
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for (i = 0; i < NUM_GPIOS; ++i) {
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int flags = GPIOF_DIR_OUT;
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gpio = devm_gpiod_get(&c->dev, name[i], GPIOD_OUT_HIGH);
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if (g[i].level)
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ret = PTR_ERR_OR_ZERO(gpio);
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flags |= GPIOF_INIT_HIGH;
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if (ret) {
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ret = devm_gpio_request_one(&c->dev, g[i].gpio, flags, name[i]);
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v4l2_err(c, "failed to request gpio %s: %d\n",
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if (ret < 0) {
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name[i], ret);
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v4l2_err(c, "failed to request gpio %s\n", name[i]);
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return ret;
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return ret;
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}
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}
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}
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return 0;
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}
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static int s5k5baf_parse_gpios(struct s5k5baf_gpio *gpios, struct device *dev)
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ret = gpiod_set_consumer_name(gpio, label[i]);
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{
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if (ret) {
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static const char * const names[] = {
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v4l2_err(c, "failed to set up name for gpio %s: %d\n",
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"stbyn-gpios",
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name[i], ret);
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"rstn-gpios",
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};
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struct device_node *node = dev->of_node;
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enum of_gpio_flags flags;
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int ret, i;
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for (i = 0; i < NUM_GPIOS; ++i) {
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ret = of_get_named_gpio_flags(node, names[i], 0, &flags);
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if (ret < 0) {
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dev_err(dev, "no %s GPIO pin provided\n", names[i]);
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return ret;
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return ret;
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}
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}
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gpios[i].gpio = ret;
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gpios[i].level = !(flags & OF_GPIO_ACTIVE_LOW);
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}
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state->gpios[i] = gpio;
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}
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return 0;
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return 0;
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}
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}
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@ -1860,10 +1836,6 @@ static int s5k5baf_parse_device_node(struct s5k5baf *state, struct device *dev)
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state->mclk_frequency);
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state->mclk_frequency);
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}
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}
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ret = s5k5baf_parse_gpios(state->gpios, dev);
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if (ret < 0)
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return ret;
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node_ep = of_graph_get_next_endpoint(node, NULL);
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node_ep = of_graph_get_next_endpoint(node, NULL);
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if (!node_ep) {
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if (!node_ep) {
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dev_err(dev, "no endpoint defined at node %pOF\n", node);
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dev_err(dev, "no endpoint defined at node %pOF\n", node);
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