[PATCH 04/18] drm/amd/display: Change to correct unit on audio rate

Eryk Brol eryk.brol at amd.com
Sun Oct 4 17:17:59 UTC 2020


From: Chris Park <Chris.Park at amd.com>

[Why]
Formula uses kHz in their formula while our driver operates with Hz.

[How]
Divide audio rate by 1000 on the initial variable that is entered into formula.

Signed-off-by: Chris Park <Chris.Park at amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu at amd.com>
Acked-by: Eryk Brol <eryk.brol at amd.com>
Acked-by: Nicholas Kazlauskas <Nicholas.Kazlauskas at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index bf37a229a342..d50a9c370637 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -150,7 +150,6 @@ struct _vcs_dpi_ip_params_st dcn2_0_ip = {
 	.dispclk_delay_subtotal = 87, //
 	.dcfclk_cstate_latency = 10, // SRExitTime
 	.max_inter_dcn_tile_repeaters = 8,
-
 	.xfc_supported = true,
 	.xfc_fill_bw_overhead_percent = 10.0,
 	.xfc_fill_constant_bytes = 0,
@@ -2203,9 +2202,9 @@ int dcn20_populate_dml_pipes_from_context(
 		/* todo: default max for now, until there is logic reflecting this in dc*/
 		pipes[pipe_cnt].dout.output_bpc = 12;
 #if defined(CONFIG_DRM_AMD_DC_DCN3_0)
-		/*fill up the audio sample rate*/
+		/*fill up the audio sample rate (unit in kHz)*/
 		get_audio_check(&res_ctx->pipe_ctx[i].stream->audio_info, &aud_check);
-		pipes[pipe_cnt].dout.max_audio_sample_rate = aud_check.max_audiosample_rate;
+		pipes[pipe_cnt].dout.max_audio_sample_rate = aud_check.max_audiosample_rate / 1000;
 #endif
 		/*
 		 * For graphic plane, cursor number is 1, nv12 is 0
-- 
2.25.1



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