[PATCH 072/120] drm/amd/display: fix bw_calc for hdmi and 420 outputs

Harry Wentland harry.wentland at amd.com
Wed Aug 9 15:01:58 UTC 2017


From: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com>

Change-Id: I0b8db982e98f3d2bf619addb693a5279de1edf28
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu at amd.com>
Acked-by: Harry Wentland <Harry.Wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
index be6e3ca9fb0d..c809ad3738e9 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
@@ -923,8 +923,10 @@ bool dcn_validate_bandwidth(
 		if (v->is_line_buffer_bpp_fixed == dcn_bw_yes)
 			v->lb_bit_per_pixel[input_idx] = v->line_buffer_fixed_bpp;
 		v->dcc_rate[input_idx] = 1; /*TODO: Worst case? does this change?*/
-		v->output_format[input_idx] = dcn_bw_444;
-		v->output[input_idx] = dcn_bw_dp;
+		v->output_format[input_idx] = pipe->stream->timing.pixel_encoding ==
+				PIXEL_ENCODING_YCBCR420 ? dcn_bw_420 : dcn_bw_444;
+		v->output[input_idx] = pipe->stream->sink->sink_signal ==
+				SIGNAL_TYPE_HDMI_TYPE_A ? dcn_bw_hdmi : dcn_bw_dp;
 
 		input_idx++;
 	}
-- 
2.11.0



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