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

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Message-ID: <82416e30-9b73-4a60-81df-27b823246f39@nxp.com>
Date: Thu, 5 Feb 2026 16:35:59 +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()
> 
>  drivers/gpu/drm/bridge/imx/imx8mp-hdmi-pai.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)

Applied to misc/kernel.git (drm-misc-fixes).  Thanks!

-- 
Regards,
Liu Ying