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

[Thomas Zimmermann]

Hi

Am 19.05.22 um 09:11 schrieb Geert Uytterhoeven:

Hi Michal,

On Wed, May 18, 2022 at 8:54 PM Michal Suchánek <msucha...@suse.de> wrote:

On Wed, May 18, 2022 at 08:30:06PM +0200, Thomas Zimmermann wrote:

--- a/drivers/gpu/drm/tiny/Kconfig
+++ b/drivers/gpu/drm/tiny/Kconfig
@@ -51,6 +51,18 @@ config DRM_GM12U320
        This is a KMS driver for projectors which use the GM12U320 chipset
        for video transfer over USB2/3, such as the Acer C120 mini projector.

+config DRM_OFDRM
+     tristate "Open Firmware display driver"
+     depends on DRM && MMU && PPC

Does this build with !PCI?

The driver uses some PCI functions, so it might possibly break with
randconfig. I don't think there are practical !PCI PPC configurations.

IIRC, the first PowerMacs didn't have PCI.

I'll try to build without PCI to see what happens.





Best regards
Thomas

Those old Macs use BootX, right? BootX is not supported ATM, as I don't have the HW to test. Is there an emulator for it? If anyone what's to make patches for BootX, I'd be happy to add them. The offb driver also supports a number of special cases for palette handling. That might be necessary for ofdrm as well.

Gr{oetje,eeting}s,

                         Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                 -- Linus Torvalds

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev

OpenPGP_signature
Description: OpenPGP digital signature