diff options
| author | Nevenko Stupar <Nevenko.Stupar@amd.com> | 2019-06-11 17:35:16 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-07-18 14:18:09 -0500 |
| commit | 40fd9090aec688be730d54a00fd2fdcb37e16701 (patch) | |
| tree | 55c3c4366663c571fbdc6cd2294d88f74ba1b40a /drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c | |
| parent | 7cecfe9d1976f6da82ba2836918f13526c1cf3d1 (diff) | |
drm/amd/display:Use Pixel clock in 100Hz units for HDMI Audio wall clock DTO
[Why]
-Pass and use pixel clock in 100 Hz to Audio for HDMI
audio DTO for Audio wall clock programming so audio DTO gets
increased precision for timings with /1001 factor.
-For HDMI TMDS for N and CTS ACR tables are based on 10 KHz
units, these does not need to be modified as N and CTS values
are still valid using current tables.
Signed-off-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c index 5e2b4d47c548..84bbff665be9 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c @@ -1251,13 +1251,13 @@ static uint32_t calc_max_audio_packets_per_line( static void get_audio_clock_info( enum dc_color_depth color_depth, - uint32_t crtc_pixel_clock_in_khz, - uint32_t actual_pixel_clock_in_khz, + uint32_t crtc_pixel_clock_100Hz, + uint32_t actual_pixel_clock_100Hz, struct audio_clock_info *audio_clock_info) { const struct audio_clock_info *clock_info; uint32_t index; - uint32_t crtc_pixel_clock_in_10khz = crtc_pixel_clock_in_khz / 10; + uint32_t crtc_pixel_clock_in_10khz = crtc_pixel_clock_100Hz / 100; uint32_t audio_array_size; switch (color_depth) { @@ -1294,16 +1294,16 @@ static void get_audio_clock_info( } /* not found */ - if (actual_pixel_clock_in_khz == 0) - actual_pixel_clock_in_khz = crtc_pixel_clock_in_khz; + if (actual_pixel_clock_100Hz == 0) + actual_pixel_clock_100Hz = crtc_pixel_clock_100Hz; /* See HDMI spec the table entry under * pixel clock of "Other". */ audio_clock_info->pixel_clock_in_10khz = - actual_pixel_clock_in_khz / 10; - audio_clock_info->cts_32khz = actual_pixel_clock_in_khz; - audio_clock_info->cts_44khz = actual_pixel_clock_in_khz; - audio_clock_info->cts_48khz = actual_pixel_clock_in_khz; + actual_pixel_clock_100Hz / 100; + audio_clock_info->cts_32khz = actual_pixel_clock_100Hz / 10; + audio_clock_info->cts_44khz = actual_pixel_clock_100Hz / 10; + audio_clock_info->cts_48khz = actual_pixel_clock_100Hz / 10; audio_clock_info->n_32khz = 4096; audio_clock_info->n_44khz = 6272; @@ -1369,14 +1369,14 @@ static void dce110_se_setup_hdmi_audio( /* Program audio clock sample/regeneration parameters */ get_audio_clock_info(crtc_info->color_depth, - crtc_info->requested_pixel_clock, - crtc_info->calculated_pixel_clock, + crtc_info->requested_pixel_clock_100Hz, + crtc_info->calculated_pixel_clock_100Hz, &audio_clock_info); DC_LOG_HW_AUDIO( - "\n%s:Input::requested_pixel_clock = %d" \ - "calculated_pixel_clock = %d \n", __func__, \ - crtc_info->requested_pixel_clock, \ - crtc_info->calculated_pixel_clock); + "\n%s:Input::requested_pixel_clock_100Hz = %d" \ + "calculated_pixel_clock_100Hz = %d \n", __func__, \ + crtc_info->requested_pixel_clock_100Hz, \ + crtc_info->calculated_pixel_clock_100Hz); /* HDMI_ACR_32_0__HDMI_ACR_CTS_32_MASK */ REG_UPDATE(HDMI_ACR_32_0, HDMI_ACR_CTS_32, audio_clock_info.cts_32khz); |