| Message ID | 20240313072516.241106-21-sakari.ailus@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v8,01/38] media: mc: Add INTERNAL pad flag | expand |
Hi Sakari, Thank you for the patch. On Wed, Mar 13, 2024 at 09:24:58AM +0200, Sakari Ailus wrote: > With enable_streams and disable_streams, the driver for a device where > streams are not independently started and stopped needs to maintain state > information on streams that have been requested to be started. Do that > now. > > In the future, a helper function in the framework is a desirable way to do > this instead. > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> > --- > drivers/media/i2c/ccs/ccs-core.c | 13 ++++++++++--- > drivers/media/i2c/ccs/ccs.h | 2 +- > 2 files changed, 11 insertions(+), 4 deletions(-) > > diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c > index 9e70946653e9..0cd8ee957655 100644 > --- a/drivers/media/i2c/ccs/ccs-core.c > +++ b/drivers/media/i2c/ccs/ccs-core.c > @@ -1766,6 +1766,11 @@ static int ccs_enable_streams(struct v4l2_subdev *subdev, > if (pad != CCS_PAD_SRC) > return -EINVAL; > > + if (sensor->streaming) { > + sensor->streaming |= streams_mask; > + return 0; > + } > + > rval = ccs_pm_get_init(sensor); > if (rval) > return rval; > @@ -1887,7 +1892,7 @@ static int ccs_enable_streams(struct v4l2_subdev *subdev, > > rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_STREAMING); > > - sensor->streaming = true; > + sensor->streaming |= streams_mask; > > return 0; > > @@ -1909,6 +1914,10 @@ static int ccs_disable_streams(struct v4l2_subdev *subdev, > if (pad != CCS_PAD_SRC) > return -EINVAL; > > + sensor->streaming &= ~streams_mask; > + if (sensor->streaming) > + return 0; > + > rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_SOFTWARE_STANDBY); > if (rval) > return rval; > @@ -1917,7 +1926,6 @@ static int ccs_disable_streams(struct v4l2_subdev *subdev, > if (rval) > dev_err(&client->dev, "post_streamoff quirks failed\n"); > > - sensor->streaming = false; > pm_runtime_mark_last_busy(&client->dev); > pm_runtime_put_autosuspend(&client->dev); > > @@ -3525,7 +3533,6 @@ static int ccs_probe(struct i2c_client *client) > goto out_cleanup; > } > > - sensor->streaming = false; > sensor->dev_init_done = true; > sensor->handler_setup_needed = true; > > diff --git a/drivers/media/i2c/ccs/ccs.h b/drivers/media/i2c/ccs/ccs.h > index 096573845a10..4725e6eca8d0 100644 > --- a/drivers/media/i2c/ccs/ccs.h > +++ b/drivers/media/i2c/ccs/ccs.h > @@ -236,7 +236,7 @@ struct ccs_sensor { > u16 image_start; /* image data start line */ > u16 visible_pixel_start; /* start pixel of the visible image */ > > - bool streaming; > + u8 streaming; > bool dev_init_done; > bool handler_setup_needed; > u8 compressed_min_bpp;
diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c index 9e70946653e9..0cd8ee957655 100644 --- a/drivers/media/i2c/ccs/ccs-core.c +++ b/drivers/media/i2c/ccs/ccs-core.c @@ -1766,6 +1766,11 @@ static int ccs_enable_streams(struct v4l2_subdev *subdev, if (pad != CCS_PAD_SRC) return -EINVAL; + if (sensor->streaming) { + sensor->streaming |= streams_mask; + return 0; + } + rval = ccs_pm_get_init(sensor); if (rval) return rval; @@ -1887,7 +1892,7 @@ static int ccs_enable_streams(struct v4l2_subdev *subdev, rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_STREAMING); - sensor->streaming = true; + sensor->streaming |= streams_mask; return 0; @@ -1909,6 +1914,10 @@ static int ccs_disable_streams(struct v4l2_subdev *subdev, if (pad != CCS_PAD_SRC) return -EINVAL; + sensor->streaming &= ~streams_mask; + if (sensor->streaming) + return 0; + rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_SOFTWARE_STANDBY); if (rval) return rval; @@ -1917,7 +1926,6 @@ static int ccs_disable_streams(struct v4l2_subdev *subdev, if (rval) dev_err(&client->dev, "post_streamoff quirks failed\n"); - sensor->streaming = false; pm_runtime_mark_last_busy(&client->dev); pm_runtime_put_autosuspend(&client->dev); @@ -3525,7 +3533,6 @@ static int ccs_probe(struct i2c_client *client) goto out_cleanup; } - sensor->streaming = false; sensor->dev_init_done = true; sensor->handler_setup_needed = true; diff --git a/drivers/media/i2c/ccs/ccs.h b/drivers/media/i2c/ccs/ccs.h index 096573845a10..4725e6eca8d0 100644 --- a/drivers/media/i2c/ccs/ccs.h +++ b/drivers/media/i2c/ccs/ccs.h @@ -236,7 +236,7 @@ struct ccs_sensor { u16 image_start; /* image data start line */ u16 visible_pixel_start; /* start pixel of the visible image */ - bool streaming; + u8 streaming; bool dev_init_done; bool handler_setup_needed; u8 compressed_min_bpp;
With enable_streams and disable_streams, the driver for a device where streams are not independently started and stopped needs to maintain state information on streams that have been requested to be started. Do that now. In the future, a helper function in the framework is a desirable way to do this instead. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> --- drivers/media/i2c/ccs/ccs-core.c | 13 ++++++++++--- drivers/media/i2c/ccs/ccs.h | 2 +- 2 files changed, 11 insertions(+), 4 deletions(-)