diff options
| -rw-r--r-- | drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c | 31 | ||||
| -rw-r--r-- | drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.h | 4 |
2 files changed, 16 insertions, 19 deletions
diff --git a/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c b/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c index 120830973d22..03d5d6eac473 100644 --- a/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c +++ b/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c @@ -16,8 +16,10 @@ #include <linux/dma-mapping.h> #include <linux/dvb/dmx.h> #include <linux/dvb/frontend.h> +#include <linux/err.h> #include <linux/errno.h> #include <linux/firmware.h> +#include <linux/gpio/consumer.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> @@ -812,30 +814,23 @@ static int c8sectpfe_probe(struct platform_device *pdev) } of_node_put(i2c_bus); - tsin->rst_gpio = of_get_named_gpio(child, "reset-gpios", 0); - - ret = gpio_is_valid(tsin->rst_gpio); - if (!ret) { - dev_err(dev, - "reset gpio for tsin%d not valid (gpio=%d)\n", - tsin->tsin_id, tsin->rst_gpio); - ret = -EINVAL; - goto err_node_put; - } - - ret = devm_gpio_request_one(dev, tsin->rst_gpio, - GPIOF_OUT_INIT_LOW, "NIM reset"); + /* Acquire reset GPIO and activate it */ + tsin->rst_gpio = devm_fwnode_gpiod_get(dev, + of_fwnode_handle(child), + "reset", GPIOD_OUT_HIGH, + "NIM reset"); + ret = PTR_ERR_OR_ZERO(tsin->rst_gpio); if (ret && ret != -EBUSY) { - dev_err(dev, "Can't request tsin%d reset gpio\n" - , fei->channel_data[index]->tsin_id); + dev_err(dev, "Can't request tsin%d reset gpio\n", + fei->channel_data[index]->tsin_id); goto err_node_put; } if (!ret) { - /* toggle reset lines */ - gpio_direction_output(tsin->rst_gpio, 0); + /* wait for the chip to reset */ usleep_range(3500, 5000); - gpio_direction_output(tsin->rst_gpio, 1); + /* release the reset line */ + gpiod_set_value_cansleep(tsin->rst_gpio, 0); usleep_range(3000, 5000); } diff --git a/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.h b/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.h index c9d6021904cd..bf377cc82225 100644 --- a/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.h +++ b/drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.h @@ -16,6 +16,8 @@ #define C8SECTPFE_MAX_TSIN_CHAN 8 +struct gpio_desc; + struct channel_info { int tsin_id; @@ -25,7 +27,7 @@ struct channel_info { int i2c; int dvb_card; - int rst_gpio; + struct gpio_desc *rst_gpio; struct i2c_adapter *i2c_adapter; struct i2c_adapter *tuner_i2c; |