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[15/16] media: i2c: max9286: Rework comments in .bound()

Message ID 20210216174146.106639-16-jacopo+renesas@jmondi.org (mailing list archive)
State New, archived
Headers show
Series media: i2c: GMSL reliability improvements | expand

Commit Message

Jacopo Mondi Feb. 16, 2021, 5:41 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 Feb. 18, 2021, 4:03 p.m. UTC | #1
On 16/02/2021 17:41, 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>
> ---
>  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 c41284de89b6..aa01d5bb79ef 100644
> --- a/drivers/media/i2c/max9286.c
> +++ b/drivers/media/i2c/max9286.c
> @@ -567,9 +567,9 @@ static int max9286_notify_bound(struct v4l2_async_notifier *notifier,
>  	}
>  
>  	/*
> -	 * 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.

s/subdev notifiers/subdev notifier/ ?

... I'm not sure that helps me ? :S

>  	 */
>  	if (priv->bound_sources != priv->source_mask) {
>  		/*
> @@ -583,16 +583,12 @@ 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

Isn't this part of the previous patch?


>  	 * - 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);
>
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Patch

diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
index c41284de89b6..aa01d5bb79ef 100644
--- a/drivers/media/i2c/max9286.c
+++ b/drivers/media/i2c/max9286.c
@@ -567,9 +567,9 @@  static int max9286_notify_bound(struct v4l2_async_notifier *notifier,
 	}
 
 	/*
-	 * 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) {
 		/*
@@ -583,16 +583,12 @@  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);