diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2021-12-02 17:44:56 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2021-12-07 11:41:07 +0300 |
| commit | 61b98486e4314d39d43921680d68b46c3083b22e (patch) | |
| tree | 2b5946145b0f9af8df90a8c999542b2ffca2f8f5 | |
| parent | 1c7ab5affa5e73ed75732be2f2fabe1ae86c82e1 (diff) | |
| download | linux-61b98486e4314d39d43921680d68b46c3083b22e.tar.xz | |
drm/i915/snps: use div32 version of MPLLB word clock for UHBR
The mode set sequence for 128b/132b requires setting the div32 version
of MPLLB clock.
Bspec: 53880, 54128
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211202144456.2541305-1-jani.nikula@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_snps_phy.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_snps_phy.c b/drivers/gpu/drm/i915/display/intel_snps_phy.c index c2251218a39e..09f405e4d363 100644 --- a/drivers/gpu/drm/i915/display/intel_snps_phy.c +++ b/drivers/gpu/drm/i915/display/intel_snps_phy.c @@ -186,6 +186,7 @@ static const struct intel_mpllb_state dg2_dp_uhbr10_100 = { REG_FIELD_PREP(SNPS_PHY_MPLLB_PMIX_EN, 1) | REG_FIELD_PREP(SNPS_PHY_MPLLB_WORD_DIV2_EN, 1) | REG_FIELD_PREP(SNPS_PHY_MPLLB_DP2_MODE, 1) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_SHIM_DIV32_CLK_SEL, 1) | REG_FIELD_PREP(SNPS_PHY_MPLLB_V2I, 2), .mpllb_div2 = REG_FIELD_PREP(SNPS_PHY_MPLLB_REF_CLK_DIV, 2) | @@ -369,6 +370,7 @@ static const struct intel_mpllb_state dg2_dp_uhbr10_38_4 = { REG_FIELD_PREP(SNPS_PHY_MPLLB_PMIX_EN, 1) | REG_FIELD_PREP(SNPS_PHY_MPLLB_WORD_DIV2_EN, 1) | REG_FIELD_PREP(SNPS_PHY_MPLLB_DP2_MODE, 1) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_SHIM_DIV32_CLK_SEL, 1) | REG_FIELD_PREP(SNPS_PHY_MPLLB_V2I, 2), .mpllb_div2 = REG_FIELD_PREP(SNPS_PHY_MPLLB_REF_CLK_DIV, 1) | diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index b0f5865482a0..1a135a73dcd9 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2247,6 +2247,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define SNPS_PHY_MPLLB_DP2_MODE REG_BIT(9) #define SNPS_PHY_MPLLB_WORD_DIV2_EN REG_BIT(8) #define SNPS_PHY_MPLLB_TX_CLK_DIV REG_GENMASK(7, 5) +#define SNPS_PHY_MPLLB_SHIM_DIV32_CLK_SEL REG_BIT(0) #define SNPS_PHY_MPLLB_FRACN1(phy) _MMIO_SNPS(phy, 0x168008) #define SNPS_PHY_MPLLB_FRACN_EN REG_BIT(31) |