diff options
| -rw-r--r-- | drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c | 24 | ||||
| -rw-r--r-- | drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h | 9 | ||||
| -rw-r--r-- | drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c | 41 |
3 files changed, 22 insertions, 52 deletions
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c index 7944736d27e1..26d8f5eb11ce 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c @@ -148,30 +148,6 @@ bool sun6i_csi_is_format_supported(struct sun6i_csi_device *csi_dev, return false; } -int sun6i_csi_set_power(struct sun6i_csi_device *csi_dev, bool enable) -{ - struct device *dev = csi_dev->dev; - struct regmap *regmap = csi_dev->regmap; - int ret; - - if (!enable) { - regmap_update_bits(regmap, SUN6I_CSI_EN_REG, - SUN6I_CSI_EN_CSI_EN, 0); - pm_runtime_put(dev); - - return 0; - } - - ret = pm_runtime_resume_and_get(dev); - if (ret < 0) - return ret; - - regmap_update_bits(regmap, SUN6I_CSI_EN_REG, SUN6I_CSI_EN_CSI_EN, - SUN6I_CSI_EN_CSI_EN); - - return 0; -} - static enum csi_input_fmt get_csi_input_format(struct sun6i_csi_device *csi_dev, u32 mbus_code, u32 pixformat) { diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h index 6fe40a56d6df..83180475e55b 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h @@ -78,15 +78,6 @@ bool sun6i_csi_is_format_supported(struct sun6i_csi_device *csi_dev, u32 pixformat, u32 mbus_code); /** - * sun6i_csi_set_power() - power on/off the csi - * @csi_dev: pointer to the csi device - * @enable: on/off - * - * Return: 0 if successful, error code otherwise. - */ -int sun6i_csi_set_power(struct sun6i_csi_device *csi_dev, bool enable); - -/** * sun6i_csi_update_config() - update the csi register settings * @csi_dev: pointer to the csi device * @config: see struct sun6i_csi_config diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c index 3ea443aa6fde..638d4ab33acd 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c @@ -6,6 +6,7 @@ */ #include <linux/of.h> +#include <linux/pm_runtime.h> #include <linux/regmap.h> #include <media/v4l2-device.h> @@ -141,6 +142,9 @@ static void sun6i_csi_capture_enable(struct sun6i_csi_device *csi_dev) { struct regmap *regmap = csi_dev->regmap; + regmap_update_bits(regmap, SUN6I_CSI_EN_REG, SUN6I_CSI_EN_CSI_EN, + SUN6I_CSI_EN_CSI_EN); + regmap_update_bits(regmap, SUN6I_CSI_CAP_REG, SUN6I_CSI_CAP_VCAP_ON, SUN6I_CSI_CAP_VCAP_ON); } @@ -150,6 +154,7 @@ static void sun6i_csi_capture_disable(struct sun6i_csi_device *csi_dev) struct regmap *regmap = csi_dev->regmap; regmap_update_bits(regmap, SUN6I_CSI_CAP_REG, SUN6I_CSI_CAP_VCAP_ON, 0); + regmap_update_bits(regmap, SUN6I_CSI_EN_REG, SUN6I_CSI_EN_CSI_EN, 0); } static void @@ -382,6 +387,7 @@ static int sun6i_csi_capture_start_streaming(struct vb2_queue *queue, struct sun6i_csi_capture *capture = &csi_dev->capture; struct sun6i_csi_capture_state *state = &capture->state; struct video_device *video_dev = &capture->video_dev; + struct device *dev = csi_dev->dev; struct v4l2_subdev *subdev; int ret; @@ -402,6 +408,12 @@ static int sun6i_csi_capture_start_streaming(struct vb2_queue *queue, goto error_media_pipeline; } + /* PM */ + + ret = pm_runtime_resume_and_get(dev); + if (ret < 0) + goto error_media_pipeline; + /* Clear */ sun6i_csi_capture_irq_clear(csi_dev); @@ -429,6 +441,8 @@ error_stream: sun6i_csi_capture_disable(csi_dev); sun6i_csi_capture_irq_disable(csi_dev); + pm_runtime_put(dev); + error_media_pipeline: video_device_pipeline_stop(video_dev); @@ -442,6 +456,7 @@ static void sun6i_csi_capture_stop_streaming(struct vb2_queue *queue) { struct sun6i_csi_device *csi_dev = vb2_get_drv_priv(queue); struct sun6i_csi_capture *capture = &csi_dev->capture; + struct device *dev = csi_dev->dev; struct v4l2_subdev *subdev; subdev = sun6i_csi_capture_remote_subdev(capture, NULL); @@ -451,6 +466,8 @@ static void sun6i_csi_capture_stop_streaming(struct vb2_queue *queue) sun6i_csi_capture_disable(csi_dev); sun6i_csi_capture_irq_disable(csi_dev); + pm_runtime_put(dev); + video_device_pipeline_stop(&capture->video_dev); sun6i_csi_capture_state_cleanup(csi_dev, true); @@ -635,27 +652,20 @@ static int sun6i_csi_capture_open(struct file *file) if (mutex_lock_interruptible(&capture->lock)) return -ERESTARTSYS; - ret = v4l2_fh_open(file); + ret = v4l2_pipeline_pm_get(&capture->video_dev.entity); if (ret < 0) goto error_lock; - ret = v4l2_pipeline_pm_get(&capture->video_dev.entity); + ret = v4l2_fh_open(file); if (ret < 0) - goto error_v4l2_fh; - - /* Power on at first open. */ - if (v4l2_fh_is_singular_file(file)) { - ret = sun6i_csi_set_power(csi_dev, true); - if (ret < 0) - goto error_v4l2_fh; - } + goto error_pipeline; mutex_unlock(&capture->lock); return 0; -error_v4l2_fh: - v4l2_fh_release(file); +error_pipeline: + v4l2_pipeline_pm_put(&capture->video_dev.entity); error_lock: mutex_unlock(&capture->lock); @@ -667,19 +677,12 @@ static int sun6i_csi_capture_close(struct file *file) { struct sun6i_csi_device *csi_dev = video_drvdata(file); struct sun6i_csi_capture *capture = &csi_dev->capture; - bool last_close; mutex_lock(&capture->lock); - last_close = v4l2_fh_is_singular_file(file); - _vb2_fop_release(file, NULL); v4l2_pipeline_pm_put(&capture->video_dev.entity); - /* Power off at last close. */ - if (last_close) - sun6i_csi_set_power(csi_dev, false); - mutex_unlock(&capture->lock); return 0; |