diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_lt_phy.c | 67 |
1 files changed, 46 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_lt_phy.c b/drivers/gpu/drm/i915/display/intel_lt_phy.c index e1c95f58b6ae..2d52242cb3fc 100644 --- a/drivers/gpu/drm/i915/display/intel_lt_phy.c +++ b/drivers/gpu/drm/i915/display/intel_lt_phy.c @@ -32,6 +32,7 @@ INTEL_LT_PHY_LANE0) #define MODE_DP 3 #define MODE_HDMI_20 4 +#define MODE_HDMI_FRL 5 #define Q32_TO_INT(x) ((x) >> 32) #define Q32_TO_FRAC(x) ((x) & 0xFFFFFFFF) #define DCO_MIN_FREQ_MHZ 11850 @@ -1176,9 +1177,30 @@ intel_lt_phy_lane_reset(struct intel_encoder *encoder, intel_de_rmw(display, XELPDP_PORT_BUF_CTL2(display, port), lane_phy_pulse_status, 0); } +static bool intel_lt_phy_is_hdmi(const struct intel_lt_phy_pll_state *ltpll) +{ + u8 mode = REG_FIELD_GET8(LT_PHY_VDR_MODE_ENCODING_MASK, ltpll->config[0]); + + if (mode == MODE_HDMI_20 || mode == MODE_HDMI_FRL) + return true; + + return false; +} + +static bool intel_lt_phy_is_dp(const struct intel_lt_phy_pll_state *ltpll) +{ + u8 mode = REG_FIELD_GET8(LT_PHY_VDR_MODE_ENCODING_MASK, ltpll->config[0]); + + if (mode == MODE_DP) + return true; + + return false; +} + static void intel_lt_phy_program_port_clock_ctl(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state, + const struct intel_lt_phy_pll_state *ltpll, + int port_clock, bool lane_reversal) { struct intel_display *display = to_intel_display(encoder); @@ -1195,17 +1217,16 @@ intel_lt_phy_program_port_clock_ctl(struct intel_encoder *encoder, * but since the register bits still remain the same we use * the same definition */ - if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) && - intel_hdmi_is_frl(crtc_state->port_clock)) + if (intel_lt_phy_is_hdmi(ltpll) && intel_hdmi_is_frl(port_clock)) val |= XELPDP_DDI_CLOCK_SELECT_PREP(display, XELPDP_DDI_CLOCK_SELECT_DIV18CLK); else val |= XELPDP_DDI_CLOCK_SELECT_PREP(display, XELPDP_DDI_CLOCK_SELECT_MAXPCLK); /* DP2.0 10G and 20G rates enable MPLLA*/ - if (crtc_state->port_clock == 1000000 || crtc_state->port_clock == 2000000) + if (port_clock == 1000000 || port_clock == 2000000) val |= XELPDP_SSC_ENABLE_PLLA; else - val |= crtc_state->dpll_hw_state.ltpll.ssc_enabled ? XELPDP_SSC_ENABLE_PLLB : 0; + val |= ltpll->ssc_enabled ? XELPDP_SSC_ENABLE_PLLB : 0; intel_de_rmw(display, XELPDP_PORT_CLOCK_CTL(display, encoder->port), XELPDP_LANE1_PHY_CLOCK_SELECT | XELPDP_FORWARD_CLOCK_UNGATE | @@ -1248,7 +1269,8 @@ static u32 intel_lt_phy_get_dp_clock(u8 rate) static bool intel_lt_phy_config_changed(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state) + const struct intel_lt_phy_pll_state *ltpll, + u32 port_clock) { u8 val, rate; u32 clock; @@ -1262,9 +1284,9 @@ intel_lt_phy_config_changed(struct intel_encoder *encoder, * using 1.62 Gbps clock since PHY PLL defaults to that * otherwise we always need to reconfigure it. */ - if (intel_crtc_has_dp_encoder(crtc_state)) { + if (intel_lt_phy_is_dp(ltpll)) { clock = intel_lt_phy_get_dp_clock(rate); - if (crtc_state->port_clock == 1620000 && crtc_state->port_clock == clock) + if (port_clock == 1620000 && port_clock == clock) return false; } @@ -1759,41 +1781,41 @@ intel_lt_phy_pll_calc_state(struct intel_crtc_state *crtc_state, static void intel_lt_phy_program_pll(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state) + const struct intel_lt_phy_pll_state *ltpll) { u8 owned_lane_mask = intel_lt_phy_get_owned_lane_mask(encoder); int i, j, k; intel_lt_phy_write(encoder, owned_lane_mask, LT_PHY_VDR_0_CONFIG, - crtc_state->dpll_hw_state.ltpll.config[0], MB_WRITE_COMMITTED); + ltpll->config[0], MB_WRITE_COMMITTED); intel_lt_phy_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_VDR_1_CONFIG, - crtc_state->dpll_hw_state.ltpll.config[1], MB_WRITE_COMMITTED); + ltpll->config[1], MB_WRITE_COMMITTED); intel_lt_phy_write(encoder, owned_lane_mask, LT_PHY_VDR_2_CONFIG, - crtc_state->dpll_hw_state.ltpll.config[2], MB_WRITE_COMMITTED); + ltpll->config[2], MB_WRITE_COMMITTED); for (i = 0; i <= 12; i++) { intel_lt_phy_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_VDR_X_ADDR_MSB(i), - crtc_state->dpll_hw_state.ltpll.addr_msb[i], + ltpll->addr_msb[i], MB_WRITE_COMMITTED); intel_lt_phy_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_VDR_X_ADDR_LSB(i), - crtc_state->dpll_hw_state.ltpll.addr_lsb[i], + ltpll->addr_lsb[i], MB_WRITE_COMMITTED); for (j = 3, k = 0; j >= 0; j--, k++) intel_lt_phy_write(encoder, INTEL_LT_PHY_LANE0, LT_PHY_VDR_X_DATAY(i, j), - crtc_state->dpll_hw_state.ltpll.data[i][k], + ltpll->data[i][k], MB_WRITE_COMMITTED); } } static void intel_lt_phy_enable_disable_tx(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state) + const struct intel_lt_phy_pll_state *ltpll, + u8 lane_count) { struct intel_digital_port *dig_port = enc_to_dig_port(encoder); bool lane_reversal = dig_port->lane_reversal; - u8 lane_count = crtc_state->lane_count; bool is_dp_alt = intel_tc_port_in_dp_alt_mode(dig_port); enum intel_tc_pin_assignment tc_pin = @@ -1895,7 +1917,8 @@ void intel_lt_phy_pll_enable(struct intel_encoder *encoder, intel_lt_phy_lane_reset(encoder, crtc_state->lane_count); /* 2. Program PORT_CLOCK_CTL register to configure clock muxes, gating, and SSC. */ - intel_lt_phy_program_port_clock_ctl(encoder, crtc_state, lane_reversal); + intel_lt_phy_program_port_clock_ctl(encoder, &crtc_state->dpll_hw_state.ltpll, + crtc_state->port_clock, lane_reversal); /* 3. Change owned PHY lanes power to Ready state. */ intel_lt_phy_powerdown_change_sequence(encoder, owned_lane_mask, @@ -1905,12 +1928,13 @@ void intel_lt_phy_pll_enable(struct intel_encoder *encoder, * 4. Read the PHY message bus VDR register PHY_VDR_0_Config check enabled PLL type, * encoded rate and encoded mode. */ - if (intel_lt_phy_config_changed(encoder, crtc_state)) { + if (intel_lt_phy_config_changed(encoder, &crtc_state->dpll_hw_state.ltpll, + crtc_state->port_clock)) { /* * 5. Program the PHY internal PLL registers over PHY message bus for the desired * frequency and protocol type */ - intel_lt_phy_program_pll(encoder, crtc_state); + intel_lt_phy_program_pll(encoder, &crtc_state->dpll_hw_state.ltpll); /* 6. Use the P2P transaction flow */ /* @@ -2001,7 +2025,8 @@ void intel_lt_phy_pll_enable(struct intel_encoder *encoder, intel_lt_phy_powerdown_change_sequence(encoder, owned_lane_mask, XELPDP_P0_STATE_ACTIVE); - intel_lt_phy_enable_disable_tx(encoder, crtc_state); + intel_lt_phy_enable_disable_tx(encoder, &crtc_state->dpll_hw_state.ltpll, + crtc_state->lane_count); intel_lt_phy_transaction_end(encoder, wakeref); } |