At the moment we don't have a proper algorithm that can be used to calculate PHY settings for arbitrary HDMI link rates. The PHY tables here should support the regular modes of real-world HDMI monitors.
Bspec: 54032 Cc: Matt Atwood matthew.s.atwood@intel.com Signed-off-by: Matt Roper matthew.d.roper@intel.com Signed-off-by: Vandita Kulkarni vandita.kulkarni@intel.com --- drivers/gpu/drm/i915/display/intel_ddi.c | 14 +- drivers/gpu/drm/i915/display/intel_display.c | 47 +++ drivers/gpu/drm/i915/display/intel_hdmi.c | 11 + drivers/gpu/drm/i915/display/intel_snps_phy.c | 286 +++++++++++++++++- drivers/gpu/drm/i915/display/intel_snps_phy.h | 7 + drivers/gpu/drm/i915/i915_reg.h | 3 + 6 files changed, 355 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 26a3aa73fcc4..929a95ddb316 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -51,6 +51,7 @@ #include "intel_panel.h" #include "intel_pps.h" #include "intel_psr.h" +#include "intel_snps_phy.h" #include "intel_sprite.h" #include "intel_tc.h" #include "intel_vdsc.h" @@ -3745,6 +3746,15 @@ void intel_ddi_get_clock(struct intel_encoder *encoder, &crtc_state->dpll_hw_state); }
+static void dg2_ddi_get_config(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state) +{ + intel_mpllb_readout_hw_state(encoder, &crtc_state->mpllb_state); + crtc_state->port_clock = intel_mpllb_calc_port_clock(encoder, &crtc_state->mpllb_state); + + intel_ddi_get_config(encoder, crtc_state); +} + static void adls_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { @@ -4606,7 +4616,9 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port) encoder->cloneable = 0; encoder->pipe_mask = ~0;
- if (IS_ALDERLAKE_S(dev_priv)) { + if (IS_DG2(dev_priv)) { + encoder->get_config = dg2_ddi_get_config; + } else if (IS_ALDERLAKE_S(dev_priv)) { encoder->enable_clock = adls_ddi_enable_clock; encoder->disable_clock = adls_ddi_disable_clock; encoder->is_clock_enabled = adls_ddi_is_clock_enabled; diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 91f6964ec406..cce520b6dfcf 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -9113,6 +9113,52 @@ verify_shared_dpll_state(struct intel_crtc *crtc, } }
+static void +verify_mpllb_state(struct intel_atomic_state *state, + struct intel_crtc_state *new_crtc_state) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_mpllb_state mpllb_hw_state = { 0 }; + struct intel_mpllb_state *mpllb_sw_state = &new_crtc_state->mpllb_state; + struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc); + struct intel_encoder *encoder; + + if (!IS_DG2(i915)) + return; + + if (!new_crtc_state->hw.active) + return; + + encoder = intel_get_crtc_new_encoder(state, new_crtc_state); + intel_mpllb_readout_hw_state(encoder, &mpllb_hw_state); + +#define MPLLB_CHECK(name) do { \ + if (mpllb_sw_state->name != mpllb_hw_state.name) { \ + pipe_config_mismatch(false, crtc, "MPLLB:" __stringify(name), \ + "(expected 0x%08x, found 0x%08x)", \ + mpllb_sw_state->name, \ + mpllb_hw_state.name); \ + } \ +} while (0) + + MPLLB_CHECK(mpllb_cp); + MPLLB_CHECK(mpllb_div); + MPLLB_CHECK(mpllb_div2); + MPLLB_CHECK(mpllb_fracn1); + MPLLB_CHECK(mpllb_fracn2); + MPLLB_CHECK(mpllb_sscen); + MPLLB_CHECK(mpllb_sscstep); + + /* + * ref_control is handled by the hardware/firemware and never + * programmed by the software, but the proper values are supplied + * in the bspec for verification purposes. + */ + MPLLB_CHECK(ref_control); + +#undef MPLLB_CHECK +} + static void intel_modeset_verify_crtc(struct intel_crtc *crtc, struct intel_atomic_state *state, @@ -9126,6 +9172,7 @@ intel_modeset_verify_crtc(struct intel_crtc *crtc, verify_connector_state(state, crtc); verify_crtc_state(crtc, old_crtc_state, new_crtc_state); verify_shared_dpll_state(crtc, old_crtc_state, new_crtc_state); + verify_mpllb_state(state, new_crtc_state); }
static void diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 852af2b23540..b04685bb6439 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -51,6 +51,7 @@ #include "intel_hdmi.h" #include "intel_lspcon.h" #include "intel_panel.h" +#include "intel_snps_phy.h"
static struct drm_device *intel_hdmi_to_dev(struct intel_hdmi *intel_hdmi) { @@ -1850,6 +1851,16 @@ hdmi_port_clock_valid(struct intel_hdmi *hdmi, if (IS_CHERRYVIEW(dev_priv) && clock > 216000 && clock < 240000) return MODE_CLOCK_RANGE;
+ /* + * SNPS PHYs' MPLLB table-based programming can only handle a fixed + * set of link rates. + * + * FIXME: We will hopefully get an algorithmic way of programming + * the MPLLB for HDMI in the future. + */ + if (IS_DG2(dev_priv)) + return intel_snps_phy_check_hdmi_link_rate(clock); + return MODE_OK; }
diff --git a/drivers/gpu/drm/i915/display/intel_snps_phy.c b/drivers/gpu/drm/i915/display/intel_snps_phy.c index 6d9205906595..1317b4e94b50 100644 --- a/drivers/gpu/drm/i915/display/intel_snps_phy.c +++ b/drivers/gpu/drm/i915/display/intel_snps_phy.c @@ -3,6 +3,8 @@ * Copyright © 2019 Intel Corporation */
+#include <linux/util_macros.h> + #include "intel_de.h" #include "intel_display_types.h" #include "intel_snps_phy.h" @@ -375,14 +377,172 @@ static const struct intel_mpllb_state *dg2_edp_tables[] = { NULL, };
-int intel_mpllb_calc_state(struct intel_crtc_state *crtc_state, - struct intel_encoder *encoder) -{ - const struct intel_mpllb_state **tables; - int i; +/* + * HDMI link rates with 100 MHz reference clock. + */ + +static const struct intel_mpllb_state dg2_hdmi_25_175 = { + .clock = 25175, + .ref_control = + REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 3), + .mpllb_cp = + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 5) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 15) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 64) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 124), + .mpllb_div = + REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV5_CLK_EN, 1) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_TX_CLK_DIV, 5) | + 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, 128) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_HDMI_DIV, 1), + .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, 143), + .mpllb_fracn2 = + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 36663) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_REM, 71), + .mpllb_sscen = + REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_UP_SPREAD, 1), +}; + +static const struct intel_mpllb_state dg2_hdmi_27_0 = { + .clock = 27000, + .ref_control = + REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 3), + .mpllb_cp = + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 5) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 15) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 64) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 124), + .mpllb_div = + REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV5_CLK_EN, 1) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_TX_CLK_DIV, 5) | + 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, 140) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_HDMI_DIV, 1), + .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, 5), + .mpllb_fracn2 = + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 26214) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_REM, 2), + .mpllb_sscen = + REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_UP_SPREAD, 1), +}; + +static const struct intel_mpllb_state dg2_hdmi_74_25 = { + .clock = 74250, + .ref_control = + REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 3), + .mpllb_cp = + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 4) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 15) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 64) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 124), + .mpllb_div = + REG_FIELD_PREP(SNPS_PHY_MPLLB_DIV5_CLK_EN, 1) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_TX_CLK_DIV, 3) | + 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, 86) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_HDMI_DIV, 1), + .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, 5), + .mpllb_fracn2 = + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 26214) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_REM, 2), + .mpllb_sscen = + REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_UP_SPREAD, 1), +}; + +static const struct intel_mpllb_state dg2_hdmi_148_5 = { + .clock = 148500, + .ref_control = + REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 3), + .mpllb_cp = + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 4) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 15) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 64) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 124), + .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, 3), + .mpllb_div2 = + REG_FIELD_PREP(SNPS_PHY_MPLLB_REF_CLK_DIV, 1) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_MULTIPLIER, 86) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_HDMI_DIV, 1), + .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, 5), + .mpllb_fracn2 = + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 26214) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_REM, 2), + .mpllb_sscen = + REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_UP_SPREAD, 1), +}; + +static const struct intel_mpllb_state dg2_hdmi_594 = { + .clock = 594000, + .ref_control = + REG_FIELD_PREP(SNPS_PHY_REF_CONTROL_REF_RANGE, 3), + .mpllb_cp = + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT, 4) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP, 15) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_INT_GS, 64) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_CP_PROP_GS, 124), + .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, 86) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_HDMI_DIV, 1), + .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, 5), + .mpllb_fracn2 = + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_QUOT, 26214) | + REG_FIELD_PREP(SNPS_PHY_MPLLB_FRACN_REM, 2), + .mpllb_sscen = + REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_UP_SPREAD, 1), +};
+static const struct intel_mpllb_state *dg2_hdmi_tables[] = { + &dg2_hdmi_25_175, + &dg2_hdmi_27_0, + &dg2_hdmi_74_25, + &dg2_hdmi_148_5, + &dg2_hdmi_594, + NULL, +}; + +static const struct intel_mpllb_state ** +intel_mpllb_tables_get(struct intel_crtc_state *crtc_state, + struct intel_encoder *encoder) +{ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP)) { - tables = dg2_edp_tables; + return dg2_edp_tables; } else if (intel_crtc_has_dp_encoder(crtc_state)) { /* * FIXME: Initially we're just enabling the "combo" outputs on @@ -397,15 +557,41 @@ int intel_mpllb_calc_state(struct intel_crtc_state *crtc_state, * that to determine which table to use. */ if (0) - tables = dg2_dp_38_4_tables; + return dg2_dp_38_4_tables; else - tables = dg2_dp_100_tables; - } else { - /* TODO: Add HDMI support */ - MISSING_CASE(encoder->type); - return -EINVAL; + return dg2_dp_100_tables; + } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { + return dg2_hdmi_tables; }
+ MISSING_CASE(encoder->type); + return NULL; +} + +int intel_mpllb_calc_state(struct intel_crtc_state *crtc_state, + struct intel_encoder *encoder) +{ + const struct intel_mpllb_state **tables; + int i; + + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { + if (intel_snps_phy_check_hdmi_link_rate(crtc_state->port_clock) + != MODE_OK) { + /* + * FIXME: Can only support fixed HDMI frequencies + * until we have a proper algorithm under a valid + * license. + */ + DRM_DEBUG_KMS("Can't support HDMI link rate %d\n", + crtc_state->port_clock); + return -EINVAL; + } + } + + tables = intel_mpllb_tables_get(crtc_state, encoder); + if (!tables) + return -EINVAL; + for (i = 0; tables[i]; i++) { if (crtc_state->port_clock <= tables[i]->clock) { crtc_state->mpllb_state = *tables[i]; @@ -515,3 +701,79 @@ void intel_mpllb_disable(struct intel_encoder *encoder) * We handle this step in bxt_set_cdclk(). */ } + +int intel_mpllb_calc_port_clock(struct intel_encoder *encoder, + const struct intel_mpllb_state *pll_state) +{ + unsigned int frac_quot = 0, frac_rem = 0, frac_den = 1; + unsigned int multiplier, tx_clk_div, refclk; + bool frac_en; + + if (0) + refclk = 38400; + else + refclk = 100000; + + refclk >>= REG_FIELD_GET(SNPS_PHY_MPLLB_REF_CLK_DIV, pll_state->mpllb_div2) - 1; + + frac_en = REG_FIELD_GET(SNPS_PHY_MPLLB_FRACN_EN, pll_state->mpllb_fracn1); + + if (frac_en) { + frac_quot = REG_FIELD_GET(SNPS_PHY_MPLLB_FRACN_QUOT, pll_state->mpllb_fracn2); + frac_rem = REG_FIELD_GET(SNPS_PHY_MPLLB_FRACN_REM, pll_state->mpllb_fracn2); + frac_den = REG_FIELD_GET(SNPS_PHY_MPLLB_FRACN_DEN, pll_state->mpllb_fracn1); + } + + multiplier = REG_FIELD_GET(SNPS_PHY_MPLLB_MULTIPLIER, pll_state->mpllb_div2) / 2 + 16; + + tx_clk_div = REG_FIELD_GET(SNPS_PHY_MPLLB_TX_CLK_DIV, pll_state->mpllb_div); + + return DIV_ROUND_CLOSEST_ULL(mul_u32_u32(refclk, (multiplier << 16) + frac_quot) + + DIV_ROUND_CLOSEST(refclk * frac_rem, frac_den), + 10 << (tx_clk_div + 16)); +} + +void intel_mpllb_readout_hw_state(struct intel_encoder *encoder, + struct intel_mpllb_state *pll_state) +{ + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + enum phy phy = intel_port_to_phy(dev_priv, encoder->port); + + pll_state->mpllb_cp = intel_de_read(dev_priv, SNPS_PHY_MPLLB_CP(phy)); + pll_state->mpllb_div = intel_de_read(dev_priv, SNPS_PHY_MPLLB_DIV(phy)); + pll_state->mpllb_div2 = intel_de_read(dev_priv, SNPS_PHY_MPLLB_DIV2(phy)); + pll_state->mpllb_sscen = intel_de_read(dev_priv, SNPS_PHY_MPLLB_SSCEN(phy)); + pll_state->mpllb_sscstep = intel_de_read(dev_priv, SNPS_PHY_MPLLB_SSCSTEP(phy)); + pll_state->mpllb_fracn1 = intel_de_read(dev_priv, SNPS_PHY_MPLLB_FRACN1(phy)); + pll_state->mpllb_fracn2 = intel_de_read(dev_priv, SNPS_PHY_MPLLB_FRACN2(phy)); + + /* + * REF_CONTROL is under firmware control and never programmed by the + * driver; we read it only for sanity checking purposes. The bspec + * only tells us the expected value for one field in this register, + * so we'll only read out those specific bits here. + */ + pll_state->ref_control = intel_de_read(dev_priv, SNPS_PHY_REF_CONTROL(phy)) & + SNPS_PHY_REF_CONTROL_REF_RANGE; + + /* + * MPLLB_DIV is programmed twice, once with the software-computed + * state, then again with the MPLLB_FORCE_EN bit added. Drop that + * extra bit during readout so that we return the actual expected + * software state. + */ + pll_state->mpllb_div &= ~SNPS_PHY_MPLLB_FORCE_EN; +} + +int intel_snps_phy_check_hdmi_link_rate(int clock) +{ + const struct intel_mpllb_state **tables = dg2_hdmi_tables; + int i; + + for (i = 0; tables[i]; i++) { + if (clock == tables[i]->clock) + return MODE_OK; + } + + return MODE_CLOCK_RANGE; +} diff --git a/drivers/gpu/drm/i915/display/intel_snps_phy.h b/drivers/gpu/drm/i915/display/intel_snps_phy.h index 205ab46f0b67..ca4c2a25182b 100644 --- a/drivers/gpu/drm/i915/display/intel_snps_phy.h +++ b/drivers/gpu/drm/i915/display/intel_snps_phy.h @@ -8,11 +8,18 @@
struct intel_encoder; struct intel_crtc_state; +struct intel_mpllb_state;
int intel_mpllb_calc_state(struct intel_crtc_state *crtc_state, struct intel_encoder *encoder); void intel_mpllb_enable(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); void intel_mpllb_disable(struct intel_encoder *encoder); +void intel_mpllb_readout_hw_state(struct intel_encoder *encoder, + struct intel_mpllb_state *pll_state); +int intel_mpllb_calc_port_clock(struct intel_encoder *encoder, + const struct intel_mpllb_state *pll_state); + +int intel_snps_phy_check_hdmi_link_rate(int clock);
#endif /* __INTEL_SNPS_PHY_H__ */ diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c0417c994b97..15465f9cf9ab 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2325,12 +2325,15 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
#define SNPS_PHY_MPLLB_SSCEN(phy) _MMIO_SNPS(phy, 0x168014) #define SNPS_PHY_MPLLB_SSC_EN REG_BIT(31) +#define SNPS_PHY_MPLLB_SSC_UP_SPREAD REG_BIT(30) #define SNPS_PHY_MPLLB_SSC_PEAK REG_GENMASK(29, 10)
#define SNPS_PHY_MPLLB_SSCSTEP(phy) _MMIO_SNPS(phy, 0x168018) #define SNPS_PHY_MPLLB_SSC_STEPSIZE REG_GENMASK(31, 11)
#define SNPS_PHY_MPLLB_DIV2(phy) _MMIO_SNPS(phy, 0x16801C) +#define SNPS_PHY_MPLLB_HDMI_PIXEL_CLK_DIV REG_GENMASK(19, 18) +#define SNPS_PHY_MPLLB_HDMI_DIV REG_GENMASK(17, 15) #define SNPS_PHY_MPLLB_REF_CLK_DIV REG_GENMASK(14, 12) #define SNPS_PHY_MPLLB_MULTIPLIER REG_GENMASK(11, 0)