Re: [RFC PATCH 0/6] Boot logo supplied by the device tree

Hi Màxim.

On Tue, Aug 18, 2026 at 12:48:21AM +0200, Màxim Pedraza Padilla wrote:
> Hi Sam,
> 
> Thank you -- that's a useful pointer, and it settles the question of how
> a splash should be drawn without fbcon: a DRM client at
> drm_client_setup(), next to drm_log, not a drm_fb_helper hook.
> 
> Francesco's series is genuinely inspiring work, and it would be very
> useful to me if it could take a CLUT224 image -- unfortunately it can't.
> It only accepts an uncompressed 24-bit RGB888 BMP, whereas our logo is
> paletted, which is what keeps it small: 17 KiB for 800x480 rather than
> around a megabyte. So as it stands the format doesn't line up with what
> we carry.

Without looking at it in detail I would assume adding CLUT224 support
would be doable. Step 1 would be to add a format conversion in
drm_format_helper and use that. You may also find this useful for other
purposes.

	Sam