Re: [PATCH] drm/pl111: Advertise no pixel blending

[Thomas Zimmermann]

Hi

Am 10.09.26 um 21:25 schrieb Roshan Kumar:
> No physical PL111 hardware here; I tested under QEMU vexpress with
> panic_on_warn, which is also how the syzkaller instance hits this.

Thanks a lot for this info. I'll try to set up such a system so I can 
test the driver myself.

Best regards
Thomas

> On current master (7.3-rc2) the unpatched driver registers and
> immediately warns: "[PLANE:35:plane-0] pixel format with alpha exposed
> but blend mode not setup", which kills the boot with panic_on_warn.
> With v3 below, the same boot registers pl111 with no warnings at all.
> One note: 860e748bddcc is not in v7.2, so the splat only shows up on
> master/7.3 and later.
>
> v3 also removes the alpha formats from the board-specific tables in
> pl111_versatile.c that the sashiko review caught v2 missing.

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Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
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