linux-kernel - dw_hdmi is showing wrong colour after commit 7cd70656d1285b79("drm/bridge: display-connector: implement bus fmts callbacks")

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <OS0PR01MB59221ED76B74231F5836D5FB86539@OS0PR01MB5922.jpnprd01.prod.outlook.com>
Date:   Thu, 13 Jan 2022 17:45:05 +0000
From:   Biju Das <biju.das.jz@...renesas.com>
To:     Neil Armstrong <narmstrong@...libre.com>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        "Laurent.pinchart@...asonboard.com" 
        <Laurent.pinchart@...asonboard.com>,
        "robert.foss@...aro.org" <robert.foss@...aro.org>,
        "jonas@...boo.se" <jonas@...boo.se>,
        "jernej.skrabec@...il.com" <jernej.skrabec@...il.com>
CC:     "martin.blumenstingl@...glemail.com" 
        <martin.blumenstingl@...glemail.com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-amlogic@...ts.infradead.org" 
        <linux-amlogic@...ts.infradead.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: dw_hdmi is showing wrong colour after commit
 7cd70656d1285b79("drm/bridge: display-connector: implement bus fmts
 callbacks")

Hi All,

RZ/G2{H, M, N} SoC has dw_hdmi IP and it was working ok(colour) till the commit
7cd70656d1285b79("drm/bridge: display-connector: implement bus fmts callbacks").

After this patch, the screen becomes greenish(may be it is setting it into YUV format??).

By checking the code, previously it used to call get_input_fmt callback and set colour as RGB24.

After this commit, it calls get_output_fmt_callbck and returns 3 outputformats(YUV16, YUV24 and RGB24)
And get_input_fmt callback, I see the outputformat as YUV16 instead of RGB24.

Not sure, I am the only one seeing this issue with dw_HDMI driver.

Regards,
Biju