diff options
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 6 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 77 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_bios.h | 13 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 24 |
4 files changed, 118 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 9868a66ef59..2eca286b57f 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1057,6 +1057,10 @@ enum modeset_restore { MODESET_SUSPENDED, }; +struct ddi_vbt_port_info { + uint8_t hdmi_level_shift; +}; + struct intel_vbt_data { struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */ struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */ @@ -1091,6 +1095,8 @@ struct intel_vbt_data { int child_dev_num; union child_device_config *child_dev; + + struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS]; }; enum intel_ddb_partitioning { diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 33003b97f1f..2f434297246 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -583,6 +583,76 @@ parse_mipi(struct drm_i915_private *dev_priv, struct bdb_header *bdb) dev_priv->vbt.dsi.panel_id = mipi->panel_id; } +static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port, + struct bdb_header *bdb) +{ + union child_device_config *it, *child = NULL; + struct ddi_vbt_port_info *info = &dev_priv->vbt.ddi_port_info[port]; + uint8_t hdmi_level_shift; + int i, j; + /* Each DDI port can have more than one value on the "DVO Port" field, + * so look for all the possible values for each port and abort if more + * than one is found. */ + int dvo_ports[][2] = { + {DVO_PORT_HDMIA, DVO_PORT_DPA}, + {DVO_PORT_HDMIB, DVO_PORT_DPB}, + {DVO_PORT_HDMIC, DVO_PORT_DPC}, + {DVO_PORT_HDMID, DVO_PORT_DPD}, + {DVO_PORT_CRT, -1 /* Port E can only be DVO_PORT_CRT */ }, + }; + + /* Find the child device to use, abort if more than one found. */ + for (i = 0; i < dev_priv->vbt.child_dev_num; i++) { + it = dev_priv->vbt.child_dev + i; + + for (j = 0; j < 2; j++) { + if (dvo_ports[port][j] == -1) + break; + + if (it->common.dvo_port == dvo_ports[port][j]) { + if (child) { + DRM_DEBUG_KMS("More than one child device for port %c in VBT.\n", + port_name(port)); + return; + } + child = it; + } + } + } + if (!child) + return; + + if (bdb->version >= 158) { + /* The VBT HDMI level shift values match the table we have. */ + hdmi_level_shift = child->raw[7] & 0xF; + if (hdmi_level_shift < 0xC) { + DRM_DEBUG_KMS("VBT HDMI level shift for port %c: %d\n", + port_name(port), + hdmi_level_shift); + info->hdmi_level_shift = hdmi_level_shift; + } + } +} + +static void parse_ddi_ports(struct drm_i915_private *dev_priv, + struct bdb_header *bdb) +{ + struct drm_device *dev = dev_priv->dev; + enum port port; + + if (!HAS_DDI(dev)) + return; + + if (!dev_priv->vbt.child_dev_num) + return; + + if (bdb->version < 155) + return; + + for (port = PORT_A; port < I915_MAX_PORTS; port++) + parse_ddi_port(dev_priv, port, bdb); +} + static void parse_device_mapping(struct drm_i915_private *dev_priv, struct bdb_header *bdb) @@ -652,6 +722,7 @@ static void init_vbt_defaults(struct drm_i915_private *dev_priv) { struct drm_device *dev = dev_priv->dev; + enum port port; dev_priv->vbt.crt_ddc_pin = GMBUS_PORT_VGADDC; @@ -670,6 +741,11 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) dev_priv->vbt.lvds_use_ssc = 1; dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev, 1); DRM_DEBUG_KMS("Set default to SSC at %dMHz\n", dev_priv->vbt.lvds_ssc_freq); + + for (port = PORT_A; port < I915_MAX_PORTS; port++) { + /* Recommended BSpec default: 800mV 0dB. */ + dev_priv->vbt.ddi_port_info[port].hdmi_level_shift = 6; + } } static int __init intel_no_opregion_vbt_callback(const struct dmi_system_id *id) @@ -761,6 +837,7 @@ intel_parse_bios(struct drm_device *dev) parse_driver_features(dev_priv, bdb); parse_edp(dev_priv, bdb); parse_mipi(dev_priv, bdb); + parse_ddi_ports(dev_priv, bdb); if (bios) pci_unmap_rom(pdev, bios); diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index 1da2bf20829..287cc5a21c2 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -648,6 +648,19 @@ int intel_parse_bios(struct drm_device *dev); #define PORT_IDPC 8 #define PORT_IDPD 9 +/* Possible values for the "DVO Port" field for versions >= 155: */ +#define DVO_PORT_HDMIA 0 +#define DVO_PORT_HDMIB 1 +#define DVO_PORT_HDMIC 2 +#define DVO_PORT_HDMID 3 +#define DVO_PORT_LVDS 4 +#define DVO_PORT_TV 5 +#define DVO_PORT_CRT 6 +#define DVO_PORT_DPB 7 +#define DVO_PORT_DPC 8 +#define DVO_PORT_DPD 9 +#define DVO_PORT_DPA 10 + /* MIPI DSI panel info */ struct bdb_mipi { u16 panel_id; diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 351e21a0be0..963245a104e 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -42,7 +42,6 @@ static const u32 hsw_ddi_translations_dp[] = { 0x80C30FFF, 0x000B0000, 0x00FFFFFF, 0x00040006, 0x80D75FFF, 0x000B0000, - 0x00FFFFFF, 0x00040006 /* HDMI parameters */ }; static const u32 hsw_ddi_translations_fdi[] = { @@ -55,7 +54,22 @@ static const u32 hsw_ddi_translations_fdi[] = { 0x00C30FFF, 0x001E0000, 0x00FFFFFF, 0x00060006, 0x00D75FFF, 0x001E0000, - 0x00FFFFFF, 0x00040006 /* HDMI parameters */ +}; + +static const u32 hsw_ddi_translations_hdmi[] = { + /* Idx NT mV diff T mV diff db */ + 0x00FFFFFF, 0x0006000E, /* 0: 400 400 0 */ + 0x00E79FFF, 0x000E000C, /* 1: 400 500 2 */ + 0x00D75FFF, 0x0005000A, /* 2: 400 600 3.5 */ + 0x00FFFFFF, 0x0005000A, /* 3: 600 600 0 */ + 0x00E79FFF, 0x001D0007, /* 4: 600 750 2 */ + 0x00D75FFF, 0x000C0004, /* 5: 600 900 3.5 */ + 0x00FFFFFF, 0x00040006, /* 6: 800 800 0 */ + 0x80E79FFF, 0x00030002, /* 7: 800 1000 2 */ + 0x00FFFFFF, 0x00140005, /* 8: 850 850 0 */ + 0x00FFFFFF, 0x000C0004, /* 9: 900 900 0 */ + 0x00FFFFFF, 0x001C0003, /* 10: 950 950 0 */ + 0x80FFFFFF, 0x00030002, /* 11: 1000 1000 0 */ }; enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) @@ -92,12 +106,18 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port) const u32 *ddi_translations = (port == PORT_E) ? hsw_ddi_translations_fdi : hsw_ddi_translations_dp; + int hdmi_level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift; for (i = 0, reg = DDI_BUF_TRANS(port); i < ARRAY_SIZE(hsw_ddi_translations_fdi); i++) { I915_WRITE(reg, ddi_translations[i]); reg += 4; } + /* Entry 9 is for HDMI: */ + for (i = 0; i < 2; i++) { + I915_WRITE(reg, hsw_ddi_translations_hdmi[hdmi_level * 2 + i]); + reg += 4; + } } /* Program DDI buffers translations for DP. By default, program ports A-D in DP |