From: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
[Why]
Color depth data is not parsed during test requests.
[How]
Update display color depth according to color depth
request from the test equipment.
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx>
Acked-by: Anson Jacob <Anson.Jacob@xxxxxxx>
---
.../gpu/drm/amd/display/dc/core/dc_link_dp.c | 40 +++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index a92fc1875474..962e88dd8dda 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -2808,10 +2808,27 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
enum dp_test_pattern test_pattern;
enum dp_test_pattern_color_space test_pattern_color_space =
DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED;
+ enum dc_color_depth requestColorDepth = COLOR_DEPTH_UNDEFINED;
+ struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
+ struct pipe_ctx *pipe_ctx = NULL;
+ int i;
memset(&dpcd_test_pattern, 0, sizeof(dpcd_test_pattern));
memset(&dpcd_test_params, 0, sizeof(dpcd_test_params));
+ for (i = 0; i < MAX_PIPES; i++) {
+ if (pipes[i].stream == NULL)
+ continue;
+
+ if (pipes[i].stream->link == link && !pipes[i].top_pipe && !pipes[i].prev_odm_pipe) {
+ pipe_ctx = &pipes[i];
+ break;
+ }
+ }
+
+ if (pipe_ctx == NULL)
+ return;
+
/* get link test pattern and pattern parameters */
core_link_read_dpcd(
link,
@@ -2849,6 +2866,29 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
DP_TEST_PATTERN_COLOR_SPACE_YCBCR709 :
DP_TEST_PATTERN_COLOR_SPACE_YCBCR601;
+ switch (dpcd_test_params.bits.BPC) {
+ case 0: // 6 bits
+ requestColorDepth = COLOR_DEPTH_666;
+ break;
+ case 1: // 8 bits
+ requestColorDepth = COLOR_DEPTH_888;
+ break;
+ case 2: // 10 bits
+ requestColorDepth = COLOR_DEPTH_101010;
+ break;
+ case 3: // 12 bits
+ requestColorDepth = COLOR_DEPTH_121212;
+ break;
+ default:
+ break;
+ }
+
+ if (requestColorDepth != COLOR_DEPTH_UNDEFINED
+ && pipe_ctx->stream->timing.display_color_depth != requestColorDepth) {
+ pipe_ctx->stream->timing.display_color_depth = requestColorDepth;
+ dp_update_dsc_config(pipe_ctx);
+ }
+
dc_link_dp_set_test_pattern(
link,
test_pattern,
--
2.25.1
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