kernel-6.7-xanmod/drm-cirrus-Use-16bpp-as-default.patch
Evgenii Shatokhin e42e28c709 Keep the patches in the kernel project instead of a separate one
Earlier, the patches were kept in the respective branches of a separate
project, https://abf.io/soft/kernel-patches-and-configs. And before that -
in the custom tarballs.

Now all the patches are kept here along with the spec file and are
applied the default way rather than by separate scripts. This should
make the maintenance of the patches as well as the experiments with the
new ones a lot easier.

The previous scheme seemed to offer a bit more flexibility (different
patch sets for different cases) at the cost of maintenance. But as it
turned out,  that flexibility was not worth it and was rarely used,
at most.
2016-07-26 11:24:24 +03:00

49 lines
1.7 KiB
Diff

From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 25 Jan 2013 17:08:03 +0100
Subject: [PATCH] drm/cirrus: Use 16bpp as default
Patch-mainline: Submitted
References: bnc#799216
We've got a bug report that GNOME on QEMU shows wrong colors.
It turned out that it's because Cairo doesn't support 24bpp well.
This hasn't been an issue until now because we (at least SUSE and
Fedora) have a patch to use 16bpp for QEMU in Xorg cirrus UMS driver.
Since cirrus KMS driver is mainly targeted for the use on QEMU/KVM, we
should choose 16bpp as default, too.
Also, it's not convenient to set the default bpp in multiple places.
cirrus_fbdev_init() should check the original preferred depth set in
cirrus_modeset_init().
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=799216
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/cirrus/cirrus_fbdev.c | 2 +-
drivers/gpu/drm/cirrus/cirrus_mode.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/cirrus/cirrus_fbdev.c
+++ b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
@@ -273,7 +273,7 @@ int cirrus_fbdev_init(struct cirrus_devi
{
struct cirrus_fbdev *gfbdev;
int ret;
- int bpp_sel = 24;
+ int bpp_sel = cdev->dev->mode_config.preferred_depth;
/*bpp_sel = 8;*/
gfbdev = kzalloc(sizeof(struct cirrus_fbdev), GFP_KERNEL);
--- a/drivers/gpu/drm/cirrus/cirrus_mode.c
+++ b/drivers/gpu/drm/cirrus/cirrus_mode.c
@@ -588,7 +588,7 @@ int cirrus_modeset_init(struct cirrus_de
cdev->dev->mode_config.max_height = CIRRUS_MAX_FB_HEIGHT;
cdev->dev->mode_config.fb_base = cdev->mc.vram_base;
- cdev->dev->mode_config.preferred_depth = 24;
+ cdev->dev->mode_config.preferred_depth = 16;
/* don't prefer a shadow on virt GPU */
cdev->dev->mode_config.prefer_shadow = 0;