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drm/ast: Remove traces of DRM_FORMAT_RGB888 handling

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There's some incomplete handling for DRM_FORMAT_RGB888 in the mode-
setting code. It was added by ast's original commit, which imported
the code from the user-space Xorg driver. But the hardware doesn't
support 24-bit pixel sizes. Hence remove the traces of RGB888 from
ast.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260414070522.33943-3-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2026-04-14 09:02:28 +02:00
parent 6033c027c8
commit adf469f2b7
1 changed files with 0 additions and 2 deletions
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2
drivers/gpu/drm/ast/ast_mode.c
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@ -155,7 +155,6 @@ static void ast_set_vbios_color_reg(struct ast_device *ast,
case 2:
color_index = HiCModeIndex;
break;
case 3:
case 4:
color_index = TrueCModeIndex;
break;
@ -765,7 +764,6 @@ static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
case DRM_FORMAT_RGB565:
ast_state->std_table = &vbios_stdtable[HiCModeIndex];
break;
case DRM_FORMAT_RGB888:
case DRM_FORMAT_XRGB8888:
ast_state->std_table = &vbios_stdtable[TrueCModeIndex];
break;