diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 121 |
1 files changed, 102 insertions, 19 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 54270bdde100..465dff4780fe 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -267,8 +267,6 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv, if (!lvds_lfp_data_ptrs) return; - dev_priv->vbt.lvds_vbt = 1; - panel_dvo_timing = get_lvds_dvo_timing(lvds_lfp_data, lvds_lfp_data_ptrs, panel_type); @@ -518,8 +516,31 @@ parse_driver_features(struct drm_i915_private *dev_priv, if (!driver) return; - if (driver->lvds_config == BDB_DRIVER_FEATURE_EDP) - dev_priv->vbt.edp.support = 1; + if (INTEL_GEN(dev_priv) >= 5) { + /* + * Note that we consider BDB_DRIVER_FEATURE_INT_SDVO_LVDS + * to mean "eDP". The VBT spec doesn't agree with that + * interpretation, but real world VBTs seem to. + */ + if (driver->lvds_config != BDB_DRIVER_FEATURE_INT_LVDS) + dev_priv->vbt.int_lvds_support = 0; + } else { + /* + * FIXME it's not clear which BDB version has the LVDS config + * bits defined. Revision history in the VBT spec says: + * "0.92 | Add two definitions for VBT value of LVDS Active + * Config (00b and 11b values defined) | 06/13/2005" + * but does not the specify the BDB version. + * + * So far version 134 (on i945gm) is the oldest VBT observed + * in the wild with the bits correctly populated. Version + * 108 (on i85x) does not have the bits correctly populated. + */ + if (bdb->version >= 134 && + driver->lvds_config != BDB_DRIVER_FEATURE_INT_LVDS && + driver->lvds_config != BDB_DRIVER_FEATURE_INT_SDVO_LVDS) + dev_priv->vbt.int_lvds_support = 0; + } DRM_DEBUG_KMS("DRRS State Enabled:%d\n", driver->drrs_enabled); /* @@ -542,11 +563,8 @@ parse_edp(struct drm_i915_private *dev_priv, const struct bdb_header *bdb) int panel_type = dev_priv->vbt.panel_type; edp = find_section(bdb, BDB_EDP); - if (!edp) { - if (dev_priv->vbt.edp.support) - DRM_DEBUG_KMS("No eDP BDB found but eDP panel supported.\n"); + if (!edp) return; - } switch ((edp->color_depth >> (panel_type * 2)) & 3) { case EDP_18BPP: @@ -688,8 +706,52 @@ parse_psr(struct drm_i915_private *dev_priv, const struct bdb_header *bdb) break; } - dev_priv->vbt.psr.tp1_wakeup_time = psr_table->tp1_wakeup_time; - dev_priv->vbt.psr.tp2_tp3_wakeup_time = psr_table->tp2_tp3_wakeup_time; + /* + * New psr options 0=500us, 1=100us, 2=2500us, 3=0us + * Old decimal value is wake up time in multiples of 100 us. + */ + if (bdb->version >= 209 && IS_GEN9_BC(dev_priv)) { + switch (psr_table->tp1_wakeup_time) { + case 0: + dev_priv->vbt.psr.tp1_wakeup_time_us = 500; + break; + case 1: + dev_priv->vbt.psr.tp1_wakeup_time_us = 100; + break; + case 3: + dev_priv->vbt.psr.tp1_wakeup_time_us = 0; + break; + default: + DRM_DEBUG_KMS("VBT tp1 wakeup time value %d is outside range[0-3], defaulting to max value 2500us\n", + psr_table->tp1_wakeup_time); + /* fallthrough */ + case 2: + dev_priv->vbt.psr.tp1_wakeup_time_us = 2500; + break; + } + + switch (psr_table->tp2_tp3_wakeup_time) { + case 0: + dev_priv->vbt.psr.tp2_tp3_wakeup_time_us = 500; + break; + case 1: + dev_priv->vbt.psr.tp2_tp3_wakeup_time_us = 100; + break; + case 3: + dev_priv->vbt.psr.tp1_wakeup_time_us = 0; + break; + default: + DRM_DEBUG_KMS("VBT tp2_tp3 wakeup time value %d is outside range[0-3], defaulting to max value 2500us\n", + psr_table->tp2_tp3_wakeup_time); + /* fallthrough */ + case 2: + dev_priv->vbt.psr.tp2_tp3_wakeup_time_us = 2500; + break; + } + } else { + dev_priv->vbt.psr.tp1_wakeup_time_us = psr_table->tp1_wakeup_time * 100; + dev_priv->vbt.psr.tp2_tp3_wakeup_time_us = psr_table->tp2_tp3_wakeup_time * 100; + } } static void parse_dsi_backlight_ports(struct drm_i915_private *dev_priv, @@ -1197,18 +1259,37 @@ static const u8 cnp_ddc_pin_map[] = { [DDC_BUS_DDI_F] = GMBUS_PIN_3_BXT, /* sic */ }; +static const u8 icp_ddc_pin_map[] = { + [ICL_DDC_BUS_DDI_A] = GMBUS_PIN_1_BXT, + [ICL_DDC_BUS_DDI_B] = GMBUS_PIN_2_BXT, + [ICL_DDC_BUS_PORT_1] = GMBUS_PIN_9_TC1_ICP, + [ICL_DDC_BUS_PORT_2] = GMBUS_PIN_10_TC2_ICP, + [ICL_DDC_BUS_PORT_3] = GMBUS_PIN_11_TC3_ICP, + [ICL_DDC_BUS_PORT_4] = GMBUS_PIN_12_TC4_ICP, +}; + static u8 map_ddc_pin(struct drm_i915_private *dev_priv, u8 vbt_pin) { - if (HAS_PCH_CNP(dev_priv)) { - if (vbt_pin < ARRAY_SIZE(cnp_ddc_pin_map)) { - return cnp_ddc_pin_map[vbt_pin]; - } else { - DRM_DEBUG_KMS("Ignoring alternate pin: VBT claims DDC pin %d, which is not valid for this platform\n", vbt_pin); - return 0; - } + const u8 *ddc_pin_map; + int n_entries; + + if (HAS_PCH_ICP(dev_priv)) { + ddc_pin_map = icp_ddc_pin_map; + n_entries = ARRAY_SIZE(icp_ddc_pin_map); + } else if (HAS_PCH_CNP(dev_priv)) { + ddc_pin_map = cnp_ddc_pin_map; + n_entries = ARRAY_SIZE(cnp_ddc_pin_map); + } else { + /* Assuming direct map */ + return vbt_pin; } - return vbt_pin; + if (vbt_pin < n_entries && ddc_pin_map[vbt_pin] != 0) + return ddc_pin_map[vbt_pin]; + + DRM_DEBUG_KMS("Ignoring alternate pin: VBT claims DDC pin %d, which is not valid for this platform\n", + vbt_pin); + return 0; } static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port, @@ -1504,7 +1585,6 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) /* LFP panel data */ dev_priv->vbt.lvds_dither = 1; - dev_priv->vbt.lvds_vbt = 0; /* SDVO panel data */ dev_priv->vbt.sdvo_lvds_vbt_mode = NULL; @@ -1513,6 +1593,9 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) dev_priv->vbt.int_tv_support = 1; dev_priv->vbt.int_crt_support = 1; + /* driver features */ + dev_priv->vbt.int_lvds_support = 1; + /* Default to using SSC */ dev_priv->vbt.lvds_use_ssc = 1; /* |
