[PATCH] drm/ast: Support 1600x900 with 108MHz PCLK

[Kuo-Hsiang Chou]

Hi

-----Original Message-----
From: Dave Airlie [mailto:airlied at gmail.com] 
Sent: Wednesday, December 22, 2021 5:56 AM
To: Thomas Zimmermann <tzimmermann at suse.de>

Subject: Re: [PATCH] drm/ast: Support 1600x900 with 108MHz PCLK

On Mon, 2 Nov 2020 at 17:57, Thomas Zimmermann <tzimmermann at suse.de> wrote:
>
> Hi
>
> Am 30.10.20 um 08:42 schrieb KuoHsiang Chou:
> > [New] Create the setting for 1600x900 @60Hz refresh rate
> >       by 108MHz pixel-clock.
> >
> > Signed-off-by: KuoHsiang Chou <kuohsiang_chou at aspeedtech.com>
>
> Acked-by: Thomas Zimmermann <tzimmermann at suse.de>
>
> I'll add your patch to drm-misc-next.
>
> As Sam mentioned, you should use scripts/get_maintainers.pl to 
> retrieve the relevant people. These include those in MAINTAINERS, but 
> also developers that have previously worked on the code.

We are seeing a possible report of a regression on an ast2600 server with this patch.

I haven't ascertained that reverting it fixes it for the customer yet, but this is a heads up in case anyone else has seen issues.

Hi Dave,

Yes, you're right, The patch needs to be removed. The patch occurs incorrect timing on CRT and ASTDP when 1600x900 are selected.
So, do I need to commit a new patch to remove/revert it from drm/ast? 

Regards,
	Kuo-Hsiang Chou

Dave.