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* [PATCH] drm/bridge: anx7625: Fill in empty ELD when no connector
@ 2022-04-14  9:00 Hsin-Yi Wang
  2022-04-19  2:29 ` Xin Ji
  0 siblings, 1 reply; 3+ messages in thread
From: Hsin-Yi Wang @ 2022-04-14  9:00 UTC (permalink / raw)
  To: Robert Foss, Xin Ji
  Cc: Jonas Karlman, David Airlie, dri-devel, Neil Armstrong,
	linux-kernel, Jernej Skrabec, Laurent Pinchart, Andrzej Hajda,
	Maxime Ripard

Speaker may share I2S with DP and .get_eld callback will be called when
speaker is playing. When HDMI wans't connected, the connector will be
null. Instead of return an error, fill in empty ELD.

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
---
 drivers/gpu/drm/bridge/analogix/anx7625.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 6516f9570b86..f2bc30c98c77 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1932,14 +1932,14 @@ static int anx7625_audio_get_eld(struct device *dev, void *data,
 	struct anx7625_data *ctx = dev_get_drvdata(dev);
 
 	if (!ctx->connector) {
-		dev_err(dev, "connector not initial\n");
-		return -EINVAL;
+		/* Pass en empty ELD if connector not available */
+		memset(buf, 0, len);
+	} else {
+		dev_dbg(dev, "audio copy eld\n");
+		memcpy(buf, ctx->connector->eld,
+		       min(sizeof(ctx->connector->eld), len));
 	}
 
-	dev_dbg(dev, "audio copy eld\n");
-	memcpy(buf, ctx->connector->eld,
-	       min(sizeof(ctx->connector->eld), len));
-
 	return 0;
 }
 
-- 
2.35.1.1178.g4f1659d476-goog


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH] drm/bridge: anx7625: Fill in empty ELD when no connector
  2022-04-14  9:00 [PATCH] drm/bridge: anx7625: Fill in empty ELD when no connector Hsin-Yi Wang
@ 2022-04-19  2:29 ` Xin Ji
  2022-04-19 13:56   ` Robert Foss
  0 siblings, 1 reply; 3+ messages in thread
From: Xin Ji @ 2022-04-19  2:29 UTC (permalink / raw)
  To: Hsin-Yi Wang
  Cc: Jonas Karlman, David Airlie, Robert Foss, dri-devel,
	Neil Armstrong, linux-kernel, Jernej Skrabec, Laurent Pinchart,
	Andrzej Hajda, Maxime Ripard

On Thu, Apr 14, 2022 at 05:00:04PM +0800, Hsin-Yi Wang wrote:
> Speaker may share I2S with DP and .get_eld callback will be called when
> speaker is playing. When HDMI wans't connected, the connector will be
> null. Instead of return an error, fill in empty ELD.
> 
> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
> ---
>  drivers/gpu/drm/bridge/analogix/anx7625.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
> index 6516f9570b86..f2bc30c98c77 100644
> --- a/drivers/gpu/drm/bridge/analogix/anx7625.c
> +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
> @@ -1932,14 +1932,14 @@ static int anx7625_audio_get_eld(struct device *dev, void *data,
>  	struct anx7625_data *ctx = dev_get_drvdata(dev);
>  
>  	if (!ctx->connector) {
> -		dev_err(dev, "connector not initial\n");
> -		return -EINVAL;
> +		/* Pass en empty ELD if connector not available */
> +		memset(buf, 0, len);
> +	} else {
> +		dev_dbg(dev, "audio copy eld\n");
> +		memcpy(buf, ctx->connector->eld,
> +		       min(sizeof(ctx->connector->eld), len));
>  	}
>  
> -	dev_dbg(dev, "audio copy eld\n");
> -	memcpy(buf, ctx->connector->eld,
> -	       min(sizeof(ctx->connector->eld), len));
> -
>  	return 0;
Hi Hsin-Yi, it's OK for me.
Reviewed-by: Xin Ji <xji@analogixsemi.com>

Thanks,
Xin
>  }
>  
> -- 
> 2.35.1.1178.g4f1659d476-goog

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] drm/bridge: anx7625: Fill in empty ELD when no connector
  2022-04-19  2:29 ` Xin Ji
@ 2022-04-19 13:56   ` Robert Foss
  0 siblings, 0 replies; 3+ messages in thread
From: Robert Foss @ 2022-04-19 13:56 UTC (permalink / raw)
  To: Xin Ji
  Cc: Jonas Karlman, David Airlie, dri-devel, Neil Armstrong,
	linux-kernel, Jernej Skrabec, Laurent Pinchart, Andrzej Hajda,
	Hsin-Yi Wang, Maxime Ripard

On Tue, 19 Apr 2022 at 04:29, Xin Ji <xji@analogixsemi.com> wrote:
>
> On Thu, Apr 14, 2022 at 05:00:04PM +0800, Hsin-Yi Wang wrote:
> > Speaker may share I2S with DP and .get_eld callback will be called when
> > speaker is playing. When HDMI wans't connected, the connector will be
> > null. Instead of return an error, fill in empty ELD.
> >
> > Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
> > ---
> >  drivers/gpu/drm/bridge/analogix/anx7625.c | 12 ++++++------
> >  1 file changed, 6 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
> > index 6516f9570b86..f2bc30c98c77 100644
> > --- a/drivers/gpu/drm/bridge/analogix/anx7625.c
> > +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
> > @@ -1932,14 +1932,14 @@ static int anx7625_audio_get_eld(struct device *dev, void *data,
> >       struct anx7625_data *ctx = dev_get_drvdata(dev);
> >
> >       if (!ctx->connector) {
> > -             dev_err(dev, "connector not initial\n");
> > -             return -EINVAL;
> > +             /* Pass en empty ELD if connector not available */
> > +             memset(buf, 0, len);
> > +     } else {
> > +             dev_dbg(dev, "audio copy eld\n");
> > +             memcpy(buf, ctx->connector->eld,
> > +                    min(sizeof(ctx->connector->eld), len));
> >       }
> >
> > -     dev_dbg(dev, "audio copy eld\n");
> > -     memcpy(buf, ctx->connector->eld,
> > -            min(sizeof(ctx->connector->eld), len));
> > -
> >       return 0;
> Hi Hsin-Yi, it's OK for me.
> Reviewed-by: Xin Ji <xji@analogixsemi.com>

Applied to drm-misc-next

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2022-04-19 13:56 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2022-04-14  9:00 [PATCH] drm/bridge: anx7625: Fill in empty ELD when no connector Hsin-Yi Wang
2022-04-19  2:29 ` Xin Ji
2022-04-19 13:56   ` Robert Foss

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