diff mbox series

[10/19] media: max9286: Use frame interval from subdev state

Message ID 20240430103956.60190-11-jacopo.mondi@ideasonboard.com (mailing list archive)
State New, archived
Headers show
Series [01/19] media: adv748x: Add support for active state | expand

Commit Message

Jacopo Mondi April 30, 2024, 10:39 a.m. UTC 
Use the frame interval stored in the subdev state instead of storing
a copy in the driver private structure.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
---
 drivers/media/i2c/max9286.c | 52 ++++++++-----------------------------
 1 file changed, 11 insertions(+), 41 deletions(-)

Comments

Laurent Pinchart May 2, 2024, 6:23 p.m. UTC | #1 
Hi Jacopo,

Thank you for the patch.

On Tue, Apr 30, 2024 at 12:39:46PM +0200, Jacopo Mondi wrote:
> Use the frame interval stored in the subdev state instead of storing
> a copy in the driver private structure.
> 
> Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
> ---
>  drivers/media/i2c/max9286.c | 52 ++++++++-----------------------------
>  1 file changed, 11 insertions(+), 41 deletions(-)
> 
> diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
> index 575d8ac8efa1..ae1b73fde832 100644
> --- a/drivers/media/i2c/max9286.c
> +++ b/drivers/media/i2c/max9286.c
> @@ -197,8 +197,6 @@ struct max9286_priv {
>  	struct v4l2_ctrl *pixelrate_ctrl;
>  	unsigned int pixelrate;
>  
> -	struct v4l2_fract interval;
> -
>  	unsigned int nsources;
>  	unsigned int source_mask;
>  	unsigned int route_mask;
> @@ -571,11 +569,14 @@ static void max9286_set_video_format(struct max9286_priv *priv,
>  		      MAX9286_INVVS | MAX9286_HVSRC_D14);
>  }
>  
> -static void max9286_set_fsync_period(struct max9286_priv *priv)
> +static void max9286_set_fsync_period(struct max9286_priv *priv,
> +				     struct v4l2_subdev_state *state)
>  {
> +	struct v4l2_fract *interval;
>  	u32 fsync;
>  
> -	if (!priv->interval.numerator || !priv->interval.denominator) {
> +	interval = v4l2_subdev_state_get_interval(state, MAX9286_SRC_PAD);
> +	if (!interval->numerator || !interval->denominator) {
>  		/*
>  		 * Special case, a null interval enables automatic FRAMESYNC
>  		 * mode. FRAMESYNC is taken from the slowest link.
> @@ -591,8 +592,8 @@ static void max9286_set_fsync_period(struct max9286_priv *priv)
>  	 * The FRAMESYNC generator is configured with a period expressed as a
>  	 * number of PCLK periods.
>  	 */
> -	fsync = div_u64((u64)priv->pixelrate * priv->interval.numerator,
> -			priv->interval.denominator);
> +	fsync = div_u64((u64)priv->pixelrate * interval->numerator,
> +			interval->denominator);
>  
>  	dev_dbg(&priv->client->dev, "fsync period %u (pclk %u)\n", fsync,
>  		priv->pixelrate);
> @@ -802,7 +803,7 @@ static int max9286_s_stream(struct v4l2_subdev *sd, int enable)
>  		format = v4l2_subdev_state_get_format(state, source_idx);
>  
>  		max9286_set_video_format(priv, format);
> -		max9286_set_fsync_period(priv);
> +		max9286_set_fsync_period(priv, state);
>  
>  		/*
>  		 * The frame sync between cameras is transmitted across the
> @@ -871,44 +872,14 @@ static int max9286_s_stream(struct v4l2_subdev *sd, int enable)
>  	return ret;
>  }
>  
> -static int max9286_get_frame_interval(struct v4l2_subdev *sd,
> -				      struct v4l2_subdev_state *sd_state,
> -				      struct v4l2_subdev_frame_interval *interval)
> -{
> -	struct max9286_priv *priv = sd_to_max9286(sd);
> -
> -	/*
> -	 * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2
> -	 * subdev active state API.
> -	 */
> -	if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
> -		return -EINVAL;
> -
> -	if (interval->pad != MAX9286_SRC_PAD)
> -		return -EINVAL;

You will now return a value for the sink pads. Is that fine ?

> -
> -	interval->interval = priv->interval;
> -
> -	return 0;
> -}
> -
>  static int max9286_set_frame_interval(struct v4l2_subdev *sd,
> -				      struct v4l2_subdev_state *sd_state,
> +				      struct v4l2_subdev_state *state,
>  				      struct v4l2_subdev_frame_interval *interval)
>  {
> -	struct max9286_priv *priv = sd_to_max9286(sd);
> -
> -	/*
> -	 * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2
> -	 * subdev active state API.
> -	 */
> -	if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
> -		return -EINVAL;
> -
>  	if (interval->pad != MAX9286_SRC_PAD)
>  		return -EINVAL;
>  
> -	priv->interval = interval->interval;
> +	*v4l2_subdev_state_get_interval(state, interval->pad) = interval->interval;
>  
>  	return 0;
>  }
> @@ -966,7 +937,7 @@ static const struct v4l2_subdev_pad_ops max9286_pad_ops = {
>  	.enum_mbus_code = max9286_enum_mbus_code,
>  	.get_fmt	= v4l2_subdev_get_fmt,
>  	.set_fmt	= max9286_set_fmt,
> -	.get_frame_interval = max9286_get_frame_interval,
> +	.get_frame_interval = v4l2_subdev_get_frame_interval,

In otder to do so, you need to initialize the interval in the
.init_state() operation.

>  	.set_frame_interval = max9286_set_frame_interval,
>  };
>  
> @@ -1148,7 +1119,6 @@ static int max9286_setup(struct max9286_priv *priv)
>  	max9286_write(priv, 0x69, (0xf & ~priv->route_mask));
>  
>  	max9286_set_video_format(priv, &max9286_default_format);
> -	max9286_set_fsync_period(priv);
>  
>  	cfg = max9286_read(priv, 0x1c);
>  	if (cfg < 0)
diff mbox series

Patch

diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
index 575d8ac8efa1..ae1b73fde832 100644
--- a/drivers/media/i2c/max9286.c
+++ b/drivers/media/i2c/max9286.c
@@ -197,8 +197,6 @@  struct max9286_priv {
 	struct v4l2_ctrl *pixelrate_ctrl;
 	unsigned int pixelrate;
 
-	struct v4l2_fract interval;
-
 	unsigned int nsources;
 	unsigned int source_mask;
 	unsigned int route_mask;
@@ -571,11 +569,14 @@  static void max9286_set_video_format(struct max9286_priv *priv,
 		      MAX9286_INVVS | MAX9286_HVSRC_D14);
 }
 
-static void max9286_set_fsync_period(struct max9286_priv *priv)
+static void max9286_set_fsync_period(struct max9286_priv *priv,
+				     struct v4l2_subdev_state *state)
 {
+	struct v4l2_fract *interval;
 	u32 fsync;
 
-	if (!priv->interval.numerator || !priv->interval.denominator) {
+	interval = v4l2_subdev_state_get_interval(state, MAX9286_SRC_PAD);
+	if (!interval->numerator || !interval->denominator) {
 		/*
 		 * Special case, a null interval enables automatic FRAMESYNC
 		 * mode. FRAMESYNC is taken from the slowest link.
@@ -591,8 +592,8 @@  static void max9286_set_fsync_period(struct max9286_priv *priv)
 	 * The FRAMESYNC generator is configured with a period expressed as a
 	 * number of PCLK periods.
 	 */
-	fsync = div_u64((u64)priv->pixelrate * priv->interval.numerator,
-			priv->interval.denominator);
+	fsync = div_u64((u64)priv->pixelrate * interval->numerator,
+			interval->denominator);
 
 	dev_dbg(&priv->client->dev, "fsync period %u (pclk %u)\n", fsync,
 		priv->pixelrate);
@@ -802,7 +803,7 @@  static int max9286_s_stream(struct v4l2_subdev *sd, int enable)
 		format = v4l2_subdev_state_get_format(state, source_idx);
 
 		max9286_set_video_format(priv, format);
-		max9286_set_fsync_period(priv);
+		max9286_set_fsync_period(priv, state);
 
 		/*
 		 * The frame sync between cameras is transmitted across the
@@ -871,44 +872,14 @@  static int max9286_s_stream(struct v4l2_subdev *sd, int enable)
 	return ret;
 }
 
-static int max9286_get_frame_interval(struct v4l2_subdev *sd,
-				      struct v4l2_subdev_state *sd_state,
-				      struct v4l2_subdev_frame_interval *interval)
-{
-	struct max9286_priv *priv = sd_to_max9286(sd);
-
-	/*
-	 * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2
-	 * subdev active state API.
-	 */
-	if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
-		return -EINVAL;
-
-	if (interval->pad != MAX9286_SRC_PAD)
-		return -EINVAL;
-
-	interval->interval = priv->interval;
-
-	return 0;
-}
-
 static int max9286_set_frame_interval(struct v4l2_subdev *sd,
-				      struct v4l2_subdev_state *sd_state,
+				      struct v4l2_subdev_state *state,
 				      struct v4l2_subdev_frame_interval *interval)
 {
-	struct max9286_priv *priv = sd_to_max9286(sd);
-
-	/*
-	 * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2
-	 * subdev active state API.
-	 */
-	if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE)
-		return -EINVAL;
-
 	if (interval->pad != MAX9286_SRC_PAD)
 		return -EINVAL;
 
-	priv->interval = interval->interval;
+	*v4l2_subdev_state_get_interval(state, interval->pad) = interval->interval;
 
 	return 0;
 }
@@ -966,7 +937,7 @@  static const struct v4l2_subdev_pad_ops max9286_pad_ops = {
 	.enum_mbus_code = max9286_enum_mbus_code,
 	.get_fmt	= v4l2_subdev_get_fmt,
 	.set_fmt	= max9286_set_fmt,
-	.get_frame_interval = max9286_get_frame_interval,
+	.get_frame_interval = v4l2_subdev_get_frame_interval,
 	.set_frame_interval = max9286_set_frame_interval,
 };
 
@@ -1148,7 +1119,6 @@  static int max9286_setup(struct max9286_priv *priv)
 	max9286_write(priv, 0x69, (0xf & ~priv->route_mask));
 
 	max9286_set_video_format(priv, &max9286_default_format);
-	max9286_set_fsync_period(priv);
 
 	cfg = max9286_read(priv, 0x1c);
 	if (cfg < 0)