6.17-stable review patch. If anyone has any objections, please let me know.
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From: Jesse Agate jesse.agate@amd.com
commit d07e142641417e67f3bfc9d8ba3da8a69c39cfcd upstream.
[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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c +++ b/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c @@ -641,16 +641,16 @@ static void spl_calculate_inits_and_view /* 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: