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Date:   Thu, 7 Oct 2021 06:52:39 +0300
From:   Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To:     Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc:     Linux-Renesas <linux-renesas-soc@vger.kernel.org>
Subject: Re: HDMI isn't probed on v5.15-rc1 on ULCB+KF
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Hi Morimoto-san,

On Wed, Oct 06, 2021 at 12:05:15PM +0900, Kuninori Morimoto wrote:
> 
> Hi Laurent
> 
> I noticed that ULCB+KF board on v5.15-rc1 doesn't probe HDMI.

Is that the M3 or H3 ULCB ?

Is there any useful information in the kernel log ?

> I git-bisect:ed and found the first issue.
> It re-start works for me if I reverted this commit.
> Could you please check it ?
> 
> commit d0f44e0dac29aca3f85d238dfbcd2e52450b38dc
> Author: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> Date:   Mon May 25 07:05:26 2020 +0300
> 
>     drm: rcar-du: dw-hdmi: Set output port number
>     
>     Report the DT output port number in dw_hdmi_plat_data to connect to the
>     next bridge in the dw-hdmi driver.
>     
>     Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
>     Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # On V3U
>     Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

I've tested v5.15-rc1 on a M3-N Salvator-XS, and can't reproduce the
issue. If your kernel log doesn't show anything useful, I'll test it on
my ULCB.

-- 
Regards,

Laurent Pinchart