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drm/ast: Remove gamma LUT updates from DPMS code

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BugLink: https://bugs.launchpad.net/bugs/2083022

The DPMS code, called from the CRTC's atomic_enable, rewrites the
gamma LUT. This is already done by the CRTC's atomic_flush. Remove
the duplication.

v2:
- fix a typo in commit message

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240627153638.8765-6-tzimmermann@suse.de
(cherry picked from commit bb5367d17e83af95b56d2cc455a09316d6ff3349)
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Acked-by: Guoqing Jiang <guoqing.jiang@canonical.com>
Acked-by: Ivan Hu <ivan.hu@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Thomas Zimmermann
2024-09-27 20:22:59 +08:00
committed by Mehmet Basaran
parent 96d5631dc6
commit 7e0f181e67
1 changed files with 0 additions and 12 deletions
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drivers/gpu/drm/ast/ast_mode.c
-12
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@@ -1005,8 +1005,6 @@ static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
{
struct ast_device *ast = to_ast_device(crtc->dev);
u8 ch = AST_DPMS_VSYNC_OFF | AST_DPMS_HSYNC_OFF;
struct ast_crtc_state *ast_state;
const struct drm_format_info *format;
/* TODO: Maybe control display signal generation with
* Sync Enable (bit CR17.7).
@@ -1015,16 +1013,6 @@ static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
case DRM_MODE_DPMS_ON:
ast_set_index_reg_mask(ast, AST_IO_VGASRI, 0x01, 0xdf, 0);
ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xb6, 0xfc, 0);
ast_state = to_ast_crtc_state(crtc->state);
format = ast_state->format;
if (format) {
if (crtc->state->gamma_lut)
ast_crtc_set_gamma(ast, format, crtc->state->gamma_lut->data);
else
ast_crtc_set_gamma_linear(ast, format);
}
break;
case DRM_MODE_DPMS_STANDBY:
case DRM_MODE_DPMS_SUSPEND: