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| author | Derek Lai <Derek.Lai@amd.com> | 2021-01-26 10:42:45 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-02-09 15:30:42 -0500 |
| commit | 166590ccb92c9805045b94b6ee53edd166de2bcd (patch) | |
| tree | 19a15fe6856e8f03c36be933c5e917d744ff7202 /drivers/gpu/drm/amd/display | |
| parent | bd0c064c161c4bbfe69b50851c10955a9066deff (diff) | |
| download | linux-stable-166590ccb92c9805045b94b6ee53edd166de2bcd.tar.gz linux-stable-166590ccb92c9805045b94b6ee53edd166de2bcd.tar.bz2 linux-stable-166590ccb92c9805045b94b6ee53edd166de2bcd.zip | |
drm/amd/display: Add DIG_CLOCK_PATTERN in the transmitter control
[Why and How]
VBIOS program DIG_CLK_PATTERN using engine ID instead of PHY ID.
Workaround by writing value for 0x1f (for HDMI) after calling vbios.
Signed-off-by: Derek Lai <Derek.Lai@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
3 files changed, 27 insertions, 1 deletions
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 index 81db0179f7ea..59024653430c 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c @@ -956,6 +956,21 @@ void dcn10_link_encoder_enable_tmds_output( } } +void dcn10_link_encoder_enable_tmds_output_with_clk_pattern_wa( + struct link_encoder *enc, + enum clock_source_id clock_source, + enum dc_color_depth color_depth, + enum signal_type signal, + uint32_t pixel_clock) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + + dcn10_link_encoder_enable_tmds_output( + enc, clock_source, color_depth, signal, pixel_clock); + + REG_UPDATE(DIG_CLOCK_PATTERN, DIG_CLOCK_PATTERN, 0x1F); +} + /* enables DP PHY output */ void dcn10_link_encoder_enable_dp_output( struct link_encoder *enc, diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.h index d4caad670855..3e1a582e4b88 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.h +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.h @@ -42,6 +42,7 @@ #define LE_DCN_COMMON_REG_LIST(id) \ SRI(DIG_BE_CNTL, DIG, id), \ SRI(DIG_BE_EN_CNTL, DIG, id), \ + SRI(DIG_CLOCK_PATTERN, DIG, id), \ SRI(TMDS_CTL_BITS, DIG, id), \ SRI(DP_CONFIG, DP, id), \ SRI(DP_DPHY_CNTL, DP, id), \ @@ -83,6 +84,7 @@ struct dcn10_link_enc_hpd_registers { struct dcn10_link_enc_registers { uint32_t DIG_BE_CNTL; uint32_t DIG_BE_EN_CNTL; + uint32_t DIG_CLOCK_PATTERN; uint32_t DP_CONFIG; uint32_t DP_DPHY_CNTL; uint32_t DP_DPHY_INTERNAL_CTRL; @@ -168,6 +170,7 @@ struct dcn10_link_enc_registers { LE_SF(DIG0_DIG_BE_CNTL, DIG_HPD_SELECT, mask_sh),\ LE_SF(DIG0_DIG_BE_CNTL, DIG_MODE, mask_sh),\ LE_SF(DIG0_DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, mask_sh),\ + LE_SF(DIG0_DIG_CLOCK_PATTERN, DIG_CLOCK_PATTERN, mask_sh),\ LE_SF(DIG0_TMDS_CTL_BITS, TMDS_CTL0, mask_sh), \ LE_SF(DP0_DP_DPHY_CNTL, DPHY_BYPASS, mask_sh),\ LE_SF(DP0_DP_DPHY_CNTL, DPHY_ATEST_SEL_LANE0, mask_sh),\ @@ -218,6 +221,7 @@ struct dcn10_link_enc_registers { type DIG_HPD_SELECT;\ type DIG_MODE;\ type DIG_FE_SOURCE_SELECT;\ + type DIG_CLOCK_PATTERN;\ type DPHY_BYPASS;\ type DPHY_ATEST_SEL_LANE0;\ type DPHY_ATEST_SEL_LANE1;\ @@ -536,6 +540,13 @@ void dcn10_link_encoder_enable_tmds_output( enum signal_type signal, uint32_t pixel_clock); +void dcn10_link_encoder_enable_tmds_output_with_clk_pattern_wa( + struct link_encoder *enc, + enum clock_source_id clock_source, + enum dc_color_depth color_depth, + enum signal_type signal, + uint32_t pixel_clock); + /* enables DP PHY output */ void dcn10_link_encoder_enable_dp_output( struct link_encoder *enc, diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c index 15c2ff264ff6..fa013496e26b 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_link_encoder.c @@ -363,7 +363,7 @@ static const struct link_encoder_funcs dcn20_link_enc_funcs = { dcn10_link_encoder_validate_output_with_stream, .hw_init = enc2_hw_init, .setup = dcn10_link_encoder_setup, - .enable_tmds_output = dcn10_link_encoder_enable_tmds_output, + .enable_tmds_output = dcn10_link_encoder_enable_tmds_output_with_clk_pattern_wa, .enable_dp_output = dcn20_link_encoder_enable_dp_output, .enable_dp_mst_output = dcn10_link_encoder_enable_dp_mst_output, .disable_output = dcn10_link_encoder_disable_output, |