drm/amd/display: add hdmi disable debug check

[Why] Using the hdmi_disable option doesnt disable 6GB bandwidth [How] Add debug.hdmi20_disable flage when checking 6GB enable or not. Reviewed-by: Chris Park <Chris.Park@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Dale Zhao <dale.zhao@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
mariux64 · Dec 1, 2021 · 9311ed1 · 9311ed1
1 parent 6421f7c
commit 9311ed1
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Showing 2 changed files with 6 additions and 4 deletions.
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
@@ -788,8 +788,9 @@ static bool dce110_link_encoder_validate_hdmi_output(
 			crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
 		return false;
 
-	if (!enc110->base.features.flags.bits.HDMI_6GB_EN &&
-		adjusted_pix_clk_khz >= 300000)
+	if ((!enc110->base.features.flags.bits.HDMI_6GB_EN ||
+			enc110->base.ctx->dc->debug.hdmi20_disable) &&
+			adjusted_pix_clk_khz >= 300000)
 		return false;
 	if (enc110->base.ctx->dc->debug.hdmi20_disable &&
 		crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c
@@ -646,8 +646,9 @@ static bool dcn10_link_encoder_validate_hdmi_output(
 			crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
 		return false;
 
-	if (!enc10->base.features.flags.bits.HDMI_6GB_EN &&
-		adjusted_pix_clk_100hz >= 3000000)
+	if ((!enc10->base.features.flags.bits.HDMI_6GB_EN ||
+			enc10->base.ctx->dc->debug.hdmi20_disable) &&
+			adjusted_pix_clk_100hz >= 3000000)
 		return false;
 	if (enc10->base.ctx->dc->debug.hdmi20_disable &&
 		crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)