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

[Roshan Kumar <roshaen09@gmail.com>]

Hi Thomas,

Sure, I tested Ze Huang's patch on the QEMU vexpress setup I used for the
format testing (master 7.3-rc2, vexpress a9 + CA9 DTB,
DRM_PL111/SII902X/panel-simple, panic_on_warn).

It compiles cleanly and works: the driver probes, finds the panel on the
coretile CLCD, registers ("Initialized pl111 on minor 0") and the boot
goes through all of device init without any splats.

One observation: with the alpha formats still in the tables,
registration prints the "[PLANE:35:plane-0] pixel format with alpha
exposed but blend mode not setup" message once (drm_warn, non-fatal
since 271e90eb converted the validation away from WARN). I also stacked
my format removal patch on top of the rework: it applies cleanly despite
the renames, and the combined boot is fully silent. So the two changes
are orthogonal and can merge in either order.

Tested-by: Roshan Kumar <roshaen09@gmail.com> # Ze Huang's patch, QEMU vexpress