diff options
| author | Jocelyn Falempe <jfalempe@redhat.com> | 2023-12-14 19:38:06 +0300 |
|---|---|---|
| committer | Jocelyn Falempe <jfalempe@redhat.com> | 2023-12-20 15:26:57 +0300 |
| commit | 11f9eb899ecc8c02b769cf8d2532ba12786a7af7 (patch) | |
| tree | 8f768c88780a411cee92f397f61ea562768cc36f /drivers/gpu/drm/mgag200/mgag200_g200er.c | |
| parent | 35ba6bd582cf926a082296b7e9a876ec81136cb1 (diff) | |
| download | linux-11f9eb899ecc8c02b769cf8d2532ba12786a7af7.tar.xz | |
drm/mgag200: Fix gamma lut not initialized for G200ER, G200EV, G200SE
When mgag200 switched from simple KMS to regular atomic helpers,
the initialization of the gamma settings was lost.
This leads to a black screen, if the bios/uefi doesn't use the same
pixel color depth.
This has been fixed with commit ad81e23426a6 ("drm/mgag200: Fix gamma
lut not initialized.") for most G200, but G200ER, G200EV, G200SE use
their own version of crtc_helper_atomic_enable() and need to be fixed
too.
Fixes: 1baf9127c482 ("drm/mgag200: Replace simple-KMS with regular atomic helpers")
Cc: <stable@vger.kernel.org> #v6.1+
Reported-by: Roger Sewell <roger.sewell@cantab.net>
Suggested-by: Roger Sewell <roger.sewell@cantab.net>
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20231214163849.359691-1-jfalempe@redhat.com
Diffstat (limited to 'drivers/gpu/drm/mgag200/mgag200_g200er.c')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_g200er.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200er.c b/drivers/gpu/drm/mgag200/mgag200_g200er.c index bce267e0f7de..8d4538b71047 100644 --- a/drivers/gpu/drm/mgag200/mgag200_g200er.c +++ b/drivers/gpu/drm/mgag200/mgag200_g200er.c @@ -202,6 +202,11 @@ static void mgag200_g200er_crtc_helper_atomic_enable(struct drm_crtc *crtc, mgag200_g200er_reset_tagfifo(mdev); + if (crtc_state->gamma_lut) + mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut->data); + else + mgag200_crtc_set_gamma_linear(mdev, format); + mgag200_enable_display(mdev); if (funcs->enable_vidrst) |