diff mbox series

[v2,18/18] media: i2c: max9286: Rework comments in .bound()

Message ID 20210315131512.133720-19-jacopo+renesas@jmondi.org (mailing list archive)
State New, archived
Headers show
Series media: gmsl: Reliability improvement | expand

Commit Message

Jacopo Mondi March 15, 2021, 1:15 p.m. UTC
Re-phrase a comment in .bound() callback to make it clear we register
a subdev notifier and remove a redundant comment about disabling i2c
auto-ack.

No functional changes intended.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
---
 drivers/media/i2c/max9286.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

Comments

Kieran Bingham March 15, 2021, 5:28 p.m. UTC | #1
On 15/03/2021 13:15, Jacopo Mondi wrote:
> Re-phrase a comment in .bound() callback to make it clear we register
> a subdev notifier and remove a redundant comment about disabling i2c
> auto-ack.
> 
> No functional changes intended.
> 
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

> ---
>  drivers/media/i2c/max9286.c | 16 ++++++----------
>  1 file changed, 6 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
> index b6347639901e..16b2cb9b44a2 100644
> --- a/drivers/media/i2c/max9286.c
> +++ b/drivers/media/i2c/max9286.c
> @@ -556,9 +556,9 @@ static int max9286_notify_bound(struct v4l2_async_notifier *notifier,
>  		subdev->name, src_pad, index);
>  
>  	/*
> -	 * We can only register v4l2_async_notifiers, which do not provide a
> -	 * means to register a complete callback. bound_sources allows us to
> -	 * identify when all remote serializers have completed their probe.
> +	 * As we register a subdev notifiers we won't get a .complete() callback
> +	 * here, so we have to use bound_sources to identify when all remote
> +	 * serializers have probed.
>  	 */
>  	if (priv->bound_sources != priv->source_mask)
>  		return 0;
> @@ -581,16 +581,12 @@ static int max9286_notify_bound(struct v4l2_async_notifier *notifier,
>  	/*
>  	 * All enabled sources have probed and enabled their reverse control
>  	 * channels:
> +	 * - The reverse channel amplitude stays high
>  	 * - Verify all configuration links are properly detected
> -	 * - Disable auto-ack as communication on the control channel are now
> -	 *   stable.
> +	 * - Disable auto-ack as communications on the control channel are now
> +	 *   stable
>  	 */
>  	max9286_check_config_link(priv, priv->source_mask);
> -
> -	/*
> -	 * Re-configure I2C with local acknowledge disabled after cameras have
> -	 * probed.
> -	 */
>  	max9286_configure_i2c(priv, false);
>  
>  	return max9286_set_pixelrate(priv);
>
Laurent Pinchart March 15, 2021, 9:57 p.m. UTC | #2
Hi Jacopo,

Thank you for the patch.

On Mon, Mar 15, 2021 at 02:15:12PM +0100, Jacopo Mondi wrote:
> Re-phrase a comment in .bound() callback to make it clear we register

s/Re-phrase/Rephrase/

> a subdev notifier and remove a redundant comment about disabling i2c
> auto-ack.
> 
> No functional changes intended.
> 
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  drivers/media/i2c/max9286.c | 16 ++++++----------
>  1 file changed, 6 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
> index b6347639901e..16b2cb9b44a2 100644
> --- a/drivers/media/i2c/max9286.c
> +++ b/drivers/media/i2c/max9286.c
> @@ -556,9 +556,9 @@ static int max9286_notify_bound(struct v4l2_async_notifier *notifier,
>  		subdev->name, src_pad, index);
>  
>  	/*
> -	 * We can only register v4l2_async_notifiers, which do not provide a
> -	 * means to register a complete callback. bound_sources allows us to
> -	 * identify when all remote serializers have completed their probe.
> +	 * As we register a subdev notifiers we won't get a .complete() callback
> +	 * here, so we have to use bound_sources to identify when all remote
> +	 * serializers have probed.
>  	 */
>  	if (priv->bound_sources != priv->source_mask)
>  		return 0;
> @@ -581,16 +581,12 @@ static int max9286_notify_bound(struct v4l2_async_notifier *notifier,
>  	/*
>  	 * All enabled sources have probed and enabled their reverse control
>  	 * channels:
> +	 * - The reverse channel amplitude stays high
>  	 * - Verify all configuration links are properly detected
> -	 * - Disable auto-ack as communication on the control channel are now
> -	 *   stable.
> +	 * - Disable auto-ack as communications on the control channel are now
> +	 *   stable
>  	 */
>  	max9286_check_config_link(priv, priv->source_mask);
> -
> -	/*
> -	 * Re-configure I2C with local acknowledge disabled after cameras have
> -	 * probed.
> -	 */
>  	max9286_configure_i2c(priv, false);
>  
>  	return max9286_set_pixelrate(priv);
diff mbox series

Patch

diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
index b6347639901e..16b2cb9b44a2 100644
--- a/drivers/media/i2c/max9286.c
+++ b/drivers/media/i2c/max9286.c
@@ -556,9 +556,9 @@  static int max9286_notify_bound(struct v4l2_async_notifier *notifier,
 		subdev->name, src_pad, index);
 
 	/*
-	 * We can only register v4l2_async_notifiers, which do not provide a
-	 * means to register a complete callback. bound_sources allows us to
-	 * identify when all remote serializers have completed their probe.
+	 * As we register a subdev notifiers we won't get a .complete() callback
+	 * here, so we have to use bound_sources to identify when all remote
+	 * serializers have probed.
 	 */
 	if (priv->bound_sources != priv->source_mask)
 		return 0;
@@ -581,16 +581,12 @@  static int max9286_notify_bound(struct v4l2_async_notifier *notifier,
 	/*
 	 * All enabled sources have probed and enabled their reverse control
 	 * channels:
+	 * - The reverse channel amplitude stays high
 	 * - Verify all configuration links are properly detected
-	 * - Disable auto-ack as communication on the control channel are now
-	 *   stable.
+	 * - Disable auto-ack as communications on the control channel are now
+	 *   stable
 	 */
 	max9286_check_config_link(priv, priv->source_mask);
-
-	/*
-	 * Re-configure I2C with local acknowledge disabled after cameras have
-	 * probed.
-	 */
 	max9286_configure_i2c(priv, false);
 
 	return max9286_set_pixelrate(priv);