diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_ddi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_ddi.c | 53 |
1 files changed, 49 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index eccbdd42d223..390869bd6b63 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -249,15 +249,48 @@ static u32 icl_pll_to_ddi_clk_sel(struct intel_encoder *encoder, } } +static u32 ddi_buf_phy_link_rate(int port_clock) +{ + switch (port_clock) { + case 162000: + return DDI_BUF_PHY_LINK_RATE(0); + case 216000: + return DDI_BUF_PHY_LINK_RATE(4); + case 243000: + return DDI_BUF_PHY_LINK_RATE(5); + case 270000: + return DDI_BUF_PHY_LINK_RATE(1); + case 324000: + return DDI_BUF_PHY_LINK_RATE(6); + case 432000: + return DDI_BUF_PHY_LINK_RATE(7); + case 540000: + return DDI_BUF_PHY_LINK_RATE(2); + case 810000: + return DDI_BUF_PHY_LINK_RATE(3); + default: + MISSING_CASE(port_clock); + return DDI_BUF_PHY_LINK_RATE(0); + } +} + static void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { + struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); + enum phy phy = intel_port_to_phy(i915, encoder->port); intel_dp->DP = dig_port->saved_port_bits | DDI_BUF_CTL_ENABLE | DDI_BUF_TRANS_SELECT(0); intel_dp->DP |= DDI_PORT_WIDTH(crtc_state->lane_count); + + if (IS_ALDERLAKE_P(i915) && intel_phy_is_tc(i915, phy)) { + intel_dp->DP |= ddi_buf_phy_link_rate(crtc_state->port_clock); + if (dig_port->tc_mode != TC_PORT_TBT_ALT) + intel_dp->DP |= DDI_BUF_CTL_TC_PHY_OWNERSHIP; + } } static int icl_calc_tbt_pll_link(struct drm_i915_private *dev_priv, @@ -979,6 +1012,8 @@ static u8 intel_ddi_dp_voltage_max(struct intel_dp *intel_dp, if (DISPLAY_VER(dev_priv) >= 12) { if (intel_phy_is_combo(dev_priv, phy)) tgl_get_combo_buf_trans(encoder, crtc_state, &n_entries); + else if (IS_ALDERLAKE_P(dev_priv)) + adlp_get_dkl_buf_trans(encoder, crtc_state, &n_entries); else tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries); } else if (DISPLAY_VER(dev_priv) == 11) { @@ -1425,7 +1460,10 @@ tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder, if (enc_to_dig_port(encoder)->tc_mode == TC_PORT_TBT_ALT) return; - ddi_translations = tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries); + if (IS_ALDERLAKE_P(dev_priv)) + ddi_translations = adlp_get_dkl_buf_trans(encoder, crtc_state, &n_entries); + else + ddi_translations = tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON_ONCE(&dev_priv->drm, !ddi_translations)) return; @@ -2772,7 +2810,6 @@ static void intel_ddi_pre_enable(struct intel_atomic_state *state, conn_state); /* FIXME precompute everything properly */ - /* FIXME how do we turn infoframes off again? */ if (dig_port->lspcon.active && dig_port->dp.has_hdmi_sink) dig_port->set_infoframes(encoder, crtc_state->has_infoframe, @@ -3157,6 +3194,9 @@ static void intel_enable_ddi_hdmi(struct intel_atomic_state *state, /* In HDMI/DVI mode, the port width, and swing/emphasis values * are ignored so nothing special needs to be done besides * enabling the port. + * + * On ADL_P the PHY link rate and lane count must be programmed but + * these are both 0 for HDMI. */ intel_de_write(dev_priv, DDI_BUF_CTL(port), dig_port->saved_port_bits | DDI_BUF_CTL_ENABLE); @@ -4022,9 +4062,11 @@ static int intel_ddi_compute_config_late(struct intel_encoder *encoder, static void intel_ddi_encoder_destroy(struct drm_encoder *encoder) { + struct drm_i915_private *i915 = to_i915(encoder->dev); struct intel_digital_port *dig_port = enc_to_dig_port(to_intel_encoder(encoder)); intel_dp_encoder_flush_work(encoder); + intel_display_power_flush_work(i915); drm_encoder_cleanup(encoder); if (dig_port) @@ -4688,9 +4730,12 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port) dig_port->hpd_pulse = intel_dp_hpd_pulse; - /* Splitter enable for eDP MSO is supported for pipe A only. */ - if (dig_port->dp.mso_link_count) + /* Splitter enable for eDP MSO is limited to certain pipes. */ + if (dig_port->dp.mso_link_count) { encoder->pipe_mask = BIT(PIPE_A); + if (IS_ALDERLAKE_P(dev_priv)) + encoder->pipe_mask |= BIT(PIPE_B); + } } /* In theory we don't need the encoder->type check, but leave it just in |