From: Matt Roper matthew.d.roper@intel.com
Our early understanding of DG2 was incorrect; since the 5th display isn't actually a Type-C output, 38.4 MHz input clocks are never used on this platform and we can drop the corresponding MPLLB tables.
Cc: Anusha Srivatsa anusha.srivatsa@intel.com Cc: José Roberto de Souza jose.souza@intel.com Signed-off-by: Matt Roper matthew.d.roper@intel.com Signed-off-by: Ramalingam C ramalingam.c@intel.com Reviewed-by: Lucas De Marchi lucas.demarchi@intel.com Reviewed-by: Uma Shankar uma.shankar@intel.com Signed-off-by: Lucas De Marchi lucas.demarchi@intel.com --- drivers/gpu/drm/i915/display/intel_snps_phy.c | 208 +----------------- 1 file changed, 1 insertion(+), 207 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_snps_phy.c b/drivers/gpu/drm/i915/display/intel_snps_phy.c index 4cdce0116883..7e6245b97fed 100644 --- a/drivers/gpu/drm/i915/display/intel_snps_phy.c +++ b/drivers/gpu/drm/i915/display/intel_snps_phy.c @@ -250,197 +250,6 @@ static const struct intel_mpllb_state * const dg2_dp_100_tables[] = { NULL, };
-/* - * Basic DP link rates with 38.4 MHz reference clock. - */ - -static const struct intel_mpllb_state dg2_dp_rbr_38_4 = { - .clock = 162000, - .ref_control = - REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 1), - .mpllb_cp = - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 5) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 25) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 65) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 127), - .mpllb_div = - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV5_CLK_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_TX_CLK_DIV, 2) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_PMIX_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_V2I, 2) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FREQ_VCO, 2), - .mpllb_div2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_REF_CLK_DIV, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_MULTIPLIER, 304), - .mpllb_fracn1 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_CGG_UPDATE_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_DEN, 1), - .mpllb_fracn2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 49152), -}; - -static const struct intel_mpllb_state dg2_dp_hbr1_38_4 = { - .clock = 270000, - .ref_control = - REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 1), - .mpllb_cp = - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 5) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 25) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 65) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 127), - .mpllb_div = - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV5_CLK_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_TX_CLK_DIV, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_PMIX_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_V2I, 2) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FREQ_VCO, 3), - .mpllb_div2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_REF_CLK_DIV, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_MULTIPLIER, 248), - .mpllb_fracn1 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_CGG_UPDATE_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_DEN, 1), - .mpllb_fracn2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 40960), -}; - -static const struct intel_mpllb_state dg2_dp_hbr2_38_4 = { - .clock = 540000, - .ref_control = - REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 1), - .mpllb_cp = - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 5) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 25) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 65) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 127), - .mpllb_div = - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV5_CLK_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_PMIX_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_V2I, 2) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FREQ_VCO, 3), - .mpllb_div2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_REF_CLK_DIV, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_MULTIPLIER, 248), - .mpllb_fracn1 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_CGG_UPDATE_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_DEN, 1), - .mpllb_fracn2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 40960), -}; - -static const struct intel_mpllb_state dg2_dp_hbr3_38_4 = { - .clock = 810000, - .ref_control = - REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 1), - .mpllb_cp = - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 6) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 26) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 65) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 127), - .mpllb_div = - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV5_CLK_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_PMIX_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_V2I, 2), - .mpllb_div2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_REF_CLK_DIV, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_MULTIPLIER, 388), - .mpllb_fracn1 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_CGG_UPDATE_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_DEN, 1), - .mpllb_fracn2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 61440), -}; - -static const struct intel_mpllb_state dg2_dp_uhbr10_38_4 = { - .clock = 1000000, - .ref_control = - REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 1), - .mpllb_cp = - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 5) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 26) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 65) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 127), - .mpllb_div = - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV5_CLK_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV_CLK_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV_MULTIPLIER, 8) | - 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) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_MULTIPLIER, 488), - .mpllb_fracn1 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_CGG_UPDATE_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_DEN, 3), - .mpllb_fracn2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_REM, 2) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 27306), - - /* - * SSC will be enabled, DP UHBR has a minimum SSC requirement. - */ - .mpllb_sscen = - REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_PEAK, 76800), - .mpllb_sscstep = - REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_STEPSIZE, 129024), -}; - -static const struct intel_mpllb_state dg2_dp_uhbr13_38_4 = { - .clock = 1350000, - .ref_control = - REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 1), - .mpllb_cp = - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 6) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 56) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 65) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 127), - .mpllb_div = - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV5_CLK_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV_CLK_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV_MULTIPLIER, 8) | - 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_V2I, 3), - .mpllb_div2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_REF_CLK_DIV, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_MULTIPLIER, 670), - .mpllb_fracn1 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_CGG_UPDATE_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_DEN, 1), - .mpllb_fracn2 = - REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 36864), - - /* - * SSC will be enabled, DP UHBR has a minimum SSC requirement. - */ - .mpllb_sscen = - REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_EN, 1) | - REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_PEAK, 103680), - .mpllb_sscstep = - REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_STEPSIZE, 174182), -}; - -static const struct intel_mpllb_state * const dg2_dp_38_4_tables[] = { - &dg2_dp_rbr_38_4, - &dg2_dp_hbr1_38_4, - &dg2_dp_hbr2_38_4, - &dg2_dp_hbr3_38_4, - &dg2_dp_uhbr10_38_4, - &dg2_dp_uhbr13_38_4, - NULL, -}; - /* * eDP link rates with 100 MHz reference clock. */ @@ -749,22 +558,7 @@ intel_mpllb_tables_get(struct intel_crtc_state *crtc_state, if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP)) { return dg2_edp_tables; } else if (intel_crtc_has_dp_encoder(crtc_state)) { - /* - * FIXME: Initially we're just enabling the "combo" outputs on - * port A-D. The MPLLB for those ports takes an input from the - * "Display Filter PLL" which always has an output frequency - * of 100 MHz, hence the use of the _100 tables below. - * - * Once we enable port TC1 it will either use the same 100 MHz - * "Display Filter PLL" (when strapped to support a native - * display connection) or different 38.4 MHz "Filter PLL" when - * strapped to support a USB connection, so we'll need to check - * that to determine which table to use. - */ - if (0) - return dg2_dp_38_4_tables; - else - return dg2_dp_100_tables; + return dg2_dp_100_tables; } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { return dg2_hdmi_tables; }