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drm/amd/display: Incorrect Mirror Cositing 

[WHY]
hinit/vinit are incorrect in the case of mirroring.

[HOW]
Cositing sign must be flipped when image is mirrored in the vertical
or horizontal direction.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Samson Tam <samson.tam@amd.com>
Signed-off-by: Jesse Agate <jesse.agate@amd.com>
Signed-off-by: Brendan Leder <breleder@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jesse Agate 2025-06-13 14:20:53 -04:00 committed by Alex Deucher
parent 5949e7c489
commit d07e142641
1 changed files with 5 additions and 5 deletions
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10
drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c
View File

@ -641,16 +641,16 @@ static void spl_calculate_inits_and_viewports(struct spl_in *spl_in,
/* this gives the direction of the cositing (negative will move
* left, right otherwise)
*/
int sign = 1;
int h_sign = flip_horz_scan_dir ? -1 : 1;
int v_sign = flip_vert_scan_dir ? -1 : 1;
switch (spl_in->basic_in.cositing) {
case CHROMA_COSITING_TOPLEFT:
init_adj_h = spl_fixpt_from_fraction(sign, 4);
init_adj_v = spl_fixpt_from_fraction(sign, 4);
init_adj_h = spl_fixpt_from_fraction(h_sign, 4);
init_adj_v = spl_fixpt_from_fraction(v_sign, 4);
break;
case CHROMA_COSITING_LEFT:
init_adj_h = spl_fixpt_from_fraction(sign, 4);
init_adj_h = spl_fixpt_from_fraction(h_sign, 4);
init_adj_v = spl_fixpt_zero;
break;
case CHROMA_COSITING_NONE: