linux-kernel - Re: [PATCH v2] drm/bridge: imx8mp-hdmi-pai: enable PM runtime

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Message-ID: <a2ca752a-c70e-4348-bdb7-e89ac119c842@nxp.com>
Date: Fri, 30 Jan 2026 16:40:46 +0800
From: Liu Ying <victor.liu@....com>
To: Shengjiu Wang <shengjiu.wang@....com>, andrzej.hajda@...el.com,
 neil.armstrong@...aro.org, rfoss@...nel.org,
 Laurent.pinchart@...asonboard.com, jonas@...boo.se,
 jernej.skrabec@...il.com, maarten.lankhorst@...ux.intel.com,
 mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com, simona@...ll.ch,
 shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
 festevam@...il.com, dri-devel@...ts.freedesktop.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] drm/bridge: imx8mp-hdmi-pai: enable PM runtime

On Fri, Jan 30, 2026 at 04:09:10PM +0800, Shengjiu Wang wrote:
> There is an audio channel shift issue with multi channel case - the
> channel order is correct for the first run, but the channel order is
> shifted for the second run. The fix method is to reset the PAI interface
> at the end of playback.
> 
> The reset can be handled by PM runtime, so enable PM runtime.
> 
> Fixes: 0205fae6327a ("drm/bridge: imx: add driver for HDMI TX Parallel Audio Interface")
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
> ---
> Changes in v2:
> - update commit message
> - add fixes tag
> - use pm_runtime_resume_and_get()

You also fixed subject and fixed error msg for devm_pm_runtime_enable().

Anyway,
Reviewed-by: Liu Ying <victor.liu@....com>

Thanks!

> 
>  drivers/gpu/drm/bridge/imx/imx8mp-hdmi-pai.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)

-- 
Regards,
Liu Ying