Re: [PATCH v6 2/2] drm/amd/display: add DMU timeout recovery support

Leo Li
2026-05-06T19:32:23Z

On 2026-05-06 13:36, Hamza Mahfooz wrote:
> On Tue, May 05, 2026 at 02:20:58PM -0400, Hamza Mahfooz wrote:
>> DMU already has robust hung state tracking, but timeout recovery
>> was never hooked up, so do so now.
>>
>> Reviewed-by: Leo Li <sunpeng.li@amd.com>
>> Signed-off-by: Hamza Mahfooz <someguy@effective-light.com>
>
> Does anyone mind if I merge this through drm-misc?

I'd prefer to have this go through asdn and the regular promotion testing.

One thing that some internal folks raised is that the DMUB timeout `MAX_WAIT_US` might be too short. On some panels, backlight control are known to take 250ms+. Triggering a DMUB reset rather than falling through may have unintended consequences.

I'll spin something up for that soon-ish.

- Leo