diff options
Diffstat (limited to 'drivers/media/platform/via/via-camera.c')
-rw-r--r-- | drivers/media/platform/via/via-camera.c | 51 |
1 files changed, 20 insertions, 31 deletions
diff --git a/drivers/media/platform/via/via-camera.c b/drivers/media/platform/via/via-camera.c index 450254403fa8..4cb8f29e2f14 100644 --- a/drivers/media/platform/via/via-camera.c +++ b/drivers/media/platform/via/via-camera.c @@ -11,7 +11,7 @@ #include <linux/device.h> #include <linux/list.h> #include <linux/pci.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/interrupt.h> #include <linux/platform_device.h> #include <linux/videodev2.h> @@ -26,7 +26,6 @@ #include <linux/dma-mapping.h> #include <linux/pm_qos.h> #include <linux/via-core.h> -#include <linux/via-gpio.h> #include <linux/via_i2c.h> #ifdef CONFIG_X86 @@ -71,8 +70,8 @@ struct via_camera { /* * GPIO info for power/reset management */ - int power_gpio; - int reset_gpio; + struct gpio_desc *power_gpio; + struct gpio_desc *reset_gpio; /* * I/O memory stuff. */ @@ -180,27 +179,19 @@ static struct via_format *via_find_format(u32 pixelformat) */ static int via_sensor_power_setup(struct via_camera *cam) { - int ret; + struct device *dev = &cam->platdev->dev; + + cam->power_gpio = devm_gpiod_get(dev, "VGPIO3", GPIOD_OUT_LOW); + if (IS_ERR(cam->power_gpio)) + return dev_err_probe(dev, PTR_ERR(cam->power_gpio), + "failed to get power GPIO"); + + /* Request the reset line asserted */ + cam->reset_gpio = devm_gpiod_get(dev, "VGPIO2", GPIOD_OUT_HIGH); + if (IS_ERR(cam->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(cam->reset_gpio), + "failed to get reset GPIO"); - cam->power_gpio = viafb_gpio_lookup("VGPIO3"); - cam->reset_gpio = viafb_gpio_lookup("VGPIO2"); - if (!gpio_is_valid(cam->power_gpio) || !gpio_is_valid(cam->reset_gpio)) { - dev_err(&cam->platdev->dev, "Unable to find GPIO lines\n"); - return -EINVAL; - } - ret = gpio_request(cam->power_gpio, "viafb-camera"); - if (ret) { - dev_err(&cam->platdev->dev, "Unable to request power GPIO\n"); - return ret; - } - ret = gpio_request(cam->reset_gpio, "viafb-camera"); - if (ret) { - dev_err(&cam->platdev->dev, "Unable to request reset GPIO\n"); - gpio_free(cam->power_gpio); - return ret; - } - gpio_direction_output(cam->power_gpio, 0); - gpio_direction_output(cam->reset_gpio, 0); return 0; } @@ -209,25 +200,23 @@ static int via_sensor_power_setup(struct via_camera *cam) */ static void via_sensor_power_up(struct via_camera *cam) { - gpio_set_value(cam->power_gpio, 1); - gpio_set_value(cam->reset_gpio, 0); + gpiod_set_value(cam->power_gpio, 1); + gpiod_set_value(cam->reset_gpio, 1); msleep(20); /* Probably excessive */ - gpio_set_value(cam->reset_gpio, 1); + gpiod_set_value(cam->reset_gpio, 0); msleep(20); } static void via_sensor_power_down(struct via_camera *cam) { - gpio_set_value(cam->power_gpio, 0); - gpio_set_value(cam->reset_gpio, 0); + gpiod_set_value(cam->power_gpio, 0); + gpiod_set_value(cam->reset_gpio, 1); } static void via_sensor_power_release(struct via_camera *cam) { via_sensor_power_down(cam); - gpio_free(cam->power_gpio); - gpio_free(cam->reset_gpio); } /* --------------------------------------------------------------------------*/ |