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drm/mgag200: Fix gamma lut not initialized for G200ER, G200EV, G200SE

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commit 11f9eb899ecc8c02b769cf8d2532ba12786a7af7 upstream.

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: 1baf9127c4 ("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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jocelyn Falempe 2023-12-14 17:38:06 +01:00 committed by Greg Kroah-Hartman
parent b9c370b61d
commit 4afcb82518
5 changed files with 25 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/mgag200/mgag200_drv.h
View File

@ -390,6 +390,11 @@ void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane,
.destroy = drm_plane_cleanup, \
DRM_GEM_SHADOW_PLANE_FUNCS
void mgag200_crtc_set_gamma_linear(struct mga_device *mdev, const struct drm_format_info *format);
void mgag200_crtc_set_gamma(struct mga_device *mdev,
const struct drm_format_info *format,
struct drm_color_lut *lut);
enum drm_mode_status mgag200_crtc_helper_mode_valid(struct drm_crtc *crtc,
const struct drm_display_mode *mode);
int mgag200_crtc_helper_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *new_state);

5
drivers/gpu/drm/mgag200/mgag200_g200er.c
View File

@ -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)

5
drivers/gpu/drm/mgag200/mgag200_g200ev.c
View File

@ -203,6 +203,11 @@ static void mgag200_g200ev_crtc_helper_atomic_enable(struct drm_crtc *crtc,
mgag200_g200ev_set_hiprilvl(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)

5
drivers/gpu/drm/mgag200/mgag200_g200se.c
View File

@ -334,6 +334,11 @@ static void mgag200_g200se_crtc_helper_atomic_enable(struct drm_crtc *crtc,
mgag200_g200se_set_hiprilvl(mdev, adjusted_mode, format);
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)

10
drivers/gpu/drm/mgag200/mgag200_mode.c
View File

@ -28,8 +28,8 @@
* This file contains setup code for the CRTC.
*/
static void mgag200_crtc_set_gamma_linear(struct mga_device *mdev,
const struct drm_format_info *format)
void mgag200_crtc_set_gamma_linear(struct mga_device *mdev,
const struct drm_format_info *format)
{
int i;
@ -65,9 +65,9 @@ static void mgag200_crtc_set_gamma_linear(struct mga_device *mdev,
}
}
static void mgag200_crtc_set_gamma(struct mga_device *mdev,
const struct drm_format_info *format,
struct drm_color_lut *lut)
void mgag200_crtc_set_gamma(struct mga_device *mdev,
const struct drm_format_info *format,
struct drm_color_lut *lut)
{
int i;