Thread (18 messages) flat view 18 messages, 6 authors, 2022-05-27

Re: [PATCH 2/2] drm/tiny: Add ofdrm for Open Firmware framebuffers

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2022-05-27 00:21:10
Also in: dri-devel, linux-fbdev

On Wed, 2022-05-25 at 18:45 +0200, Thomas Zimmermann wrote:
quoted
The palette handling is useful when using a real Open Firmware
implementation which tends to boot in 8-bit mode, so without palette
things will look ... bad.

It's not necessary when using 16/32 bpp framebuffers which is typically
... what BootX provides :-)
Maybe the odd color formats can be tested via qemu.

I don't mind adding DRM support for BootX displays, but getting the 
necessary test HW with a suitable Linux seems to be laborious. Would a 
G4 Powerbook work?
My point was that it's the non-BootX case that cares about the palette
hacks :-)

Cheers,
Ben.
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