diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_snps_phy.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_snps_phy.c | 113 |
1 files changed, 47 insertions, 66 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_snps_phy.c b/drivers/gpu/drm/i915/display/intel_snps_phy.c index 4b3a32736fd6..b9acd9fe160c 100644 --- a/drivers/gpu/drm/i915/display/intel_snps_phy.c +++ b/drivers/gpu/drm/i915/display/intel_snps_phy.c @@ -6,10 +6,12 @@ #include <linux/math.h> #include "i915_reg.h" +#include "i915_utils.h" #include "intel_ddi.h" #include "intel_ddi_buf_trans.h" #include "intel_de.h" #include "intel_display_types.h" +#include "intel_snps_hdmi_pll.h" #include "intel_snps_phy.h" #include "intel_snps_phy_regs.h" @@ -25,12 +27,12 @@ * since it is not handled by the shared DPLL framework as on other platforms. */ -void intel_snps_phy_wait_for_calibration(struct drm_i915_private *i915) +void intel_snps_phy_wait_for_calibration(struct intel_display *display) { enum phy phy; for_each_phy_masked(phy, ~0) { - if (!intel_phy_is_snps(i915, phy)) + if (!intel_phy_is_snps(display, phy)) continue; /* @@ -38,16 +40,16 @@ void intel_snps_phy_wait_for_calibration(struct drm_i915_private *i915) * which phy was affected and skip setup of the corresponding * output later. */ - if (intel_de_wait_for_clear(i915, DG2_PHY_MISC(phy), + if (intel_de_wait_for_clear(display, DG2_PHY_MISC(phy), DG2_PHY_DP_TX_ACK_MASK, 25)) - i915->display.snps.phy_failed_calibration |= BIT(phy); + display->snps.phy_failed_calibration |= BIT(phy); } } void intel_snps_phy_update_psr_power_state(struct intel_encoder *encoder, bool enable) { - struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); enum phy phy = intel_encoder_to_phy(encoder); u32 val; @@ -56,20 +58,20 @@ void intel_snps_phy_update_psr_power_state(struct intel_encoder *encoder, val = REG_FIELD_PREP(SNPS_PHY_TX_REQ_LN_DIS_PWR_STATE_PSR, enable ? 2 : 3); - intel_de_rmw(i915, SNPS_PHY_TX_REQ(phy), + intel_de_rmw(display, SNPS_PHY_TX_REQ(phy), SNPS_PHY_TX_REQ_LN_DIS_PWR_STATE_PSR, val); } void intel_snps_phy_set_signal_levels(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); const struct intel_ddi_buf_trans *trans; enum phy phy = intel_encoder_to_phy(encoder); int n_entries, ln; trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries); - if (drm_WARN_ON_ONCE(&dev_priv->drm, !trans)) + if (drm_WARN_ON_ONCE(display->drm, !trans)) return; for (ln = 0; ln < 4; ln++) { @@ -80,7 +82,7 @@ void intel_snps_phy_set_signal_levels(struct intel_encoder *encoder, val |= REG_FIELD_PREP(SNPS_PHY_TX_EQ_PRE, trans->entries[level].snps.pre_cursor); val |= REG_FIELD_PREP(SNPS_PHY_TX_EQ_POST, trans->entries[level].snps.post_cursor); - intel_de_write(dev_priv, SNPS_PHY_TX_EQ(ln, phy), val); + intel_de_write(display, SNPS_PHY_TX_EQ(ln, phy), val); } } @@ -520,7 +522,7 @@ static const struct intel_mpllb_state dg2_hdmi_148_5 = { REG_FIELD_PREP(SNPS_PHY_MPLLB_SSC_UP_SPREAD, 1), }; -/* values in the below table are calculted using the algo */ +/* values in the below table are calculated using the algo */ static const struct intel_mpllb_state dg2_hdmi_25200 = { .clock = 25200, .ref_control = @@ -1787,24 +1789,9 @@ intel_mpllb_tables_get(struct intel_crtc_state *crtc_state, int intel_mpllb_calc_state(struct intel_crtc_state *crtc_state, struct intel_encoder *encoder) { - struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_mpllb_state * const *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_dbg_kms(&i915->drm, "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; @@ -1816,13 +1803,21 @@ int intel_mpllb_calc_state(struct intel_crtc_state *crtc_state, } } + /* For HDMI PLLs try SNPS PHY algorithm, if there are no precomputed tables */ + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { + intel_snps_hdmi_pll_compute_mpllb(&crtc_state->dpll_hw_state.mpllb, + crtc_state->port_clock); + + return 0; + } + return -EINVAL; } void intel_mpllb_enable(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); const struct intel_mpllb_state *pll_state = &crtc_state->dpll_hw_state.mpllb; enum phy phy = intel_encoder_to_phy(encoder); i915_reg_t enable_reg = (phy <= PHY_D ? @@ -1832,13 +1827,13 @@ void intel_mpllb_enable(struct intel_encoder *encoder, * 3. Software programs the following PLL registers for the desired * frequency. */ - intel_de_write(dev_priv, SNPS_PHY_MPLLB_CP(phy), pll_state->mpllb_cp); - intel_de_write(dev_priv, SNPS_PHY_MPLLB_DIV(phy), pll_state->mpllb_div); - intel_de_write(dev_priv, SNPS_PHY_MPLLB_DIV2(phy), pll_state->mpllb_div2); - intel_de_write(dev_priv, SNPS_PHY_MPLLB_SSCEN(phy), pll_state->mpllb_sscen); - intel_de_write(dev_priv, SNPS_PHY_MPLLB_SSCSTEP(phy), pll_state->mpllb_sscstep); - intel_de_write(dev_priv, SNPS_PHY_MPLLB_FRACN1(phy), pll_state->mpllb_fracn1); - intel_de_write(dev_priv, SNPS_PHY_MPLLB_FRACN2(phy), pll_state->mpllb_fracn2); + intel_de_write(display, SNPS_PHY_MPLLB_CP(phy), pll_state->mpllb_cp); + intel_de_write(display, SNPS_PHY_MPLLB_DIV(phy), pll_state->mpllb_div); + intel_de_write(display, SNPS_PHY_MPLLB_DIV2(phy), pll_state->mpllb_div2); + intel_de_write(display, SNPS_PHY_MPLLB_SSCEN(phy), pll_state->mpllb_sscen); + intel_de_write(display, SNPS_PHY_MPLLB_SSCSTEP(phy), pll_state->mpllb_sscstep); + intel_de_write(display, SNPS_PHY_MPLLB_FRACN1(phy), pll_state->mpllb_fracn1); + intel_de_write(display, SNPS_PHY_MPLLB_FRACN2(phy), pll_state->mpllb_fracn2); /* * 4. If the frequency will result in a change to the voltage @@ -1849,7 +1844,7 @@ void intel_mpllb_enable(struct intel_encoder *encoder, */ /* 5. Software sets DPLL_ENABLE [PLL Enable] to "1". */ - intel_de_rmw(dev_priv, enable_reg, 0, PLL_ENABLE); + intel_de_rmw(display, enable_reg, 0, PLL_ENABLE); /* * 9. Software sets SNPS_PHY_MPLLB_DIV dp_mpllb_force_en to "1". This @@ -1858,7 +1853,7 @@ void intel_mpllb_enable(struct intel_encoder *encoder, * PLL because that will start the PLL before it has sampled the * divider values. */ - intel_de_write(dev_priv, SNPS_PHY_MPLLB_DIV(phy), + intel_de_write(display, SNPS_PHY_MPLLB_DIV(phy), pll_state->mpllb_div | SNPS_PHY_MPLLB_FORCE_EN); /* @@ -1866,8 +1861,8 @@ void intel_mpllb_enable(struct intel_encoder *encoder, * is locked at new settings. This register bit is sampling PHY * dp_mpllb_state interface signal. */ - if (intel_de_wait_for_set(dev_priv, enable_reg, PLL_LOCK, 5)) - drm_dbg_kms(&dev_priv->drm, "Port %c PLL not locked\n", phy_name(phy)); + if (intel_de_wait_for_set(display, enable_reg, PLL_LOCK, 5)) + drm_dbg_kms(display->drm, "Port %c PLL not locked\n", phy_name(phy)); /* * 11. If the frequency will result in a change to the voltage @@ -1880,7 +1875,7 @@ void intel_mpllb_enable(struct intel_encoder *encoder, void intel_mpllb_disable(struct intel_encoder *encoder) { - struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(encoder); enum phy phy = intel_encoder_to_phy(encoder); i915_reg_t enable_reg = (phy <= PHY_D ? DG2_PLL_ENABLE(phy) : MG_PLL_ENABLE(0)); @@ -1894,20 +1889,20 @@ void intel_mpllb_disable(struct intel_encoder *encoder) */ /* 2. Software programs DPLL_ENABLE [PLL Enable] to "0" */ - intel_de_rmw(i915, enable_reg, PLL_ENABLE, 0); + intel_de_rmw(display, enable_reg, PLL_ENABLE, 0); /* * 4. Software programs SNPS_PHY_MPLLB_DIV dp_mpllb_force_en to "0". * This will allow the PLL to stop running. */ - intel_de_rmw(i915, SNPS_PHY_MPLLB_DIV(phy), SNPS_PHY_MPLLB_FORCE_EN, 0); + intel_de_rmw(display, SNPS_PHY_MPLLB_DIV(phy), SNPS_PHY_MPLLB_FORCE_EN, 0); /* * 5. Software polls DPLL_ENABLE [PLL Lock] for PHY acknowledgment * (dp_txX_ack) that the new transmitter setting request is completed. */ - if (intel_de_wait_for_clear(i915, enable_reg, PLL_LOCK, 5)) - drm_err(&i915->drm, "Port %c PLL not locked\n", phy_name(phy)); + if (intel_de_wait_for_clear(display, enable_reg, PLL_LOCK, 5)) + drm_err(display->drm, "Port %c PLL not locked\n", phy_name(phy)); /* * 6. If the frequency will result in a change to the voltage @@ -1952,16 +1947,16 @@ int intel_mpllb_calc_port_clock(struct intel_encoder *encoder, 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); + struct intel_display *display = to_intel_display(encoder); enum phy phy = intel_encoder_to_phy(encoder); - 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)); + pll_state->mpllb_cp = intel_de_read(display, SNPS_PHY_MPLLB_CP(phy)); + pll_state->mpllb_div = intel_de_read(display, SNPS_PHY_MPLLB_DIV(phy)); + pll_state->mpllb_div2 = intel_de_read(display, SNPS_PHY_MPLLB_DIV2(phy)); + pll_state->mpllb_sscen = intel_de_read(display, SNPS_PHY_MPLLB_SSCEN(phy)); + pll_state->mpllb_sscstep = intel_de_read(display, SNPS_PHY_MPLLB_SSCSTEP(phy)); + pll_state->mpllb_fracn1 = intel_de_read(display, SNPS_PHY_MPLLB_FRACN1(phy)); + pll_state->mpllb_fracn2 = intel_de_read(display, SNPS_PHY_MPLLB_FRACN2(phy)); /* * REF_CONTROL is under firmware control and never programmed by the @@ -1969,7 +1964,7 @@ void intel_mpllb_readout_hw_state(struct intel_encoder *encoder, * 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)) & + pll_state->ref_control = intel_de_read(display, SNPS_PHY_REF_CONTROL(phy)) & SNPS_PHY_REF_CONTROL_REF_RANGE; /* @@ -1981,31 +1976,17 @@ void intel_mpllb_readout_hw_state(struct intel_encoder *encoder, pll_state->mpllb_div &= ~SNPS_PHY_MPLLB_FORCE_EN; } -int intel_snps_phy_check_hdmi_link_rate(int clock) -{ - const struct intel_mpllb_state * const *tables = dg2_hdmi_tables; - int i; - - for (i = 0; tables[i]; i++) { - if (clock == tables[i]->clock) - return MODE_OK; - } - - return MODE_CLOCK_RANGE; -} - void intel_mpllb_state_verify(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct intel_display *display = to_intel_display(state); - struct drm_i915_private *i915 = to_i915(state->base.dev); const struct intel_crtc_state *new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc); struct intel_mpllb_state mpllb_hw_state = {}; const struct intel_mpllb_state *mpllb_sw_state = &new_crtc_state->dpll_hw_state.mpllb; struct intel_encoder *encoder; - if (!IS_DG2(i915)) + if (!display->platform.dg2) return; if (!new_crtc_state->hw.active) |