linux-kernel - Re: [PATCH v3 00/15] Improvements and fixes for mxsfb DRM driver

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Message-ID: <VI1PR04MB70233374E91F85119FD21FD5EEA10@VI1PR04MB7023.eurprd04.prod.outlook.com>
Date:   Mon, 26 Aug 2019 19:19:17 +0000
From:   Leonard Crestez <leonard.crestez@....com>
To:     Stefan Agner <stefan@...er.ch>,
        Robert Chiras <robert.chiras@....com>
CC:     Guido Günther <agx@...xcpu.org>,
        Marek Vasut <marex@...x.de>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 00/15] Improvements and fixes for mxsfb DRM driver

On 26.08.2019 17:35, Stefan Agner wrote:
> On 2019-08-26 14:05, Guido Günther wrote:
>> Hi,
>> On Wed, Aug 21, 2019 at 01:15:40PM +0300, Robert Chiras wrote:
>>> This patch-set improves the use of eLCDIF block on iMX 8 SoCs (like 8MQ, 8MM
>>> and 8QXP). Following, are the new features added and fixes from this
>>> patch-set:
>>
>> I've applied this whole series on top of my NWL work and it looks good
>> with a DSI panel. Applying the whole series also fixes an issue where
>> after unblank the output was sometimes shifted about half a screen width
>> to the right (which didn't happen with DCSS). So at least from the parts
>> I could test:
>>
>>    Tested-by: Guido Günther <agx@...xcpu.org>
>>
>> for the whole thing.
> 
> Thanks for testing! What SoC did you use? I think it would be good to
> also give this a try on i.MX 7 or i.MX 6ULL before merging.

I did a quick test on imx6sx-sdb and it seems that [PATCH 07/15] 
"drm/mxsfb: Fix the vblank events" causes a hang on boot, even without a 
panel.

If I revert that particular patch it seems to be fine: the new pixel 
formats seem to work in modetest (checked with sii,43wvf1g panel).

--
Regards,
Leonard