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path: root/drivers/gpu/drm/i915/intel_bios.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
-rw-r--r--drivers/gpu/drm/i915/intel_bios.c91
1 files changed, 84 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 1faa494e2bc9..6d3e0260d49c 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -420,6 +420,13 @@ parse_general_features(struct drm_i915_private *dev_priv,
intel_bios_ssc_frequency(dev_priv, general->ssc_freq);
dev_priv->vbt.display_clock_mode = general->display_clock_mode;
dev_priv->vbt.fdi_rx_polarity_inverted = general->fdi_rx_polarity_inverted;
+ if (bdb->version >= 181) {
+ dev_priv->vbt.orientation = general->rotate_180 ?
+ DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP :
+ DRM_MODE_PANEL_ORIENTATION_NORMAL;
+ } else {
+ dev_priv->vbt.orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
+ }
DRM_DEBUG_KMS("BDB_GENERAL_FEATURES int_tv_support %d int_crt_support %d lvds_use_ssc %d lvds_ssc_freq %d display_clock_mode %d fdi_rx_polarity_inverted %d\n",
dev_priv->vbt.int_tv_support,
dev_priv->vbt.int_crt_support,
@@ -852,6 +859,30 @@ parse_mipi_config(struct drm_i915_private *dev_priv,
parse_dsi_backlight_ports(dev_priv, bdb->version, port);
+ /* FIXME is the 90 vs. 270 correct? */
+ switch (config->rotation) {
+ case ENABLE_ROTATION_0:
+ /*
+ * Most (all?) VBTs claim 0 degrees despite having
+ * an upside down panel, thus we do not trust this.
+ */
+ dev_priv->vbt.dsi.orientation =
+ DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
+ break;
+ case ENABLE_ROTATION_90:
+ dev_priv->vbt.dsi.orientation =
+ DRM_MODE_PANEL_ORIENTATION_RIGHT_UP;
+ break;
+ case ENABLE_ROTATION_180:
+ dev_priv->vbt.dsi.orientation =
+ DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP;
+ break;
+ case ENABLE_ROTATION_270:
+ dev_priv->vbt.dsi.orientation =
+ DRM_MODE_PANEL_ORIENTATION_LEFT_UP;
+ break;
+ }
+
/* We have mandatory mipi config blocks. Initialize as generic panel */
dev_priv->vbt.dsi.panel_id = MIPI_DSI_GENERIC_PANEL_ID;
}
@@ -1721,7 +1752,7 @@ void intel_bios_init(struct drm_i915_private *dev_priv)
const struct bdb_header *bdb;
u8 __iomem *bios = NULL;
- if (INTEL_INFO(dev_priv)->num_pipes == 0) {
+ if (!HAS_DISPLAY(dev_priv)) {
DRM_DEBUG_KMS("Skipping VBT init due to disabled display.\n");
return;
}
@@ -2039,17 +2070,17 @@ bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv,
dvo_port = child->dvo_port;
- switch (dvo_port) {
- case DVO_PORT_MIPIA:
- case DVO_PORT_MIPIC:
+ if (dvo_port == DVO_PORT_MIPIA ||
+ (dvo_port == DVO_PORT_MIPIB && IS_ICELAKE(dev_priv)) ||
+ (dvo_port == DVO_PORT_MIPIC && !IS_ICELAKE(dev_priv))) {
if (port)
*port = dvo_port - DVO_PORT_MIPIA;
return true;
- case DVO_PORT_MIPIB:
- case DVO_PORT_MIPID:
+ } else if (dvo_port == DVO_PORT_MIPIB ||
+ dvo_port == DVO_PORT_MIPIC ||
+ dvo_port == DVO_PORT_MIPID) {
DRM_DEBUG_KMS("VBT has unsupported DSI port %c\n",
port_name(dvo_port - DVO_PORT_MIPIA));
- break;
}
}
@@ -2159,3 +2190,49 @@ intel_bios_is_lspcon_present(struct drm_i915_private *dev_priv,
return false;
}
+
+enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *dev_priv,
+ enum port port)
+{
+ const struct ddi_vbt_port_info *info =
+ &dev_priv->vbt.ddi_port_info[port];
+ enum aux_ch aux_ch;
+
+ if (!info->alternate_aux_channel) {
+ aux_ch = (enum aux_ch)port;
+
+ DRM_DEBUG_KMS("using AUX %c for port %c (platform default)\n",
+ aux_ch_name(aux_ch), port_name(port));
+ return aux_ch;
+ }
+
+ switch (info->alternate_aux_channel) {
+ case DP_AUX_A:
+ aux_ch = AUX_CH_A;
+ break;
+ case DP_AUX_B:
+ aux_ch = AUX_CH_B;
+ break;
+ case DP_AUX_C:
+ aux_ch = AUX_CH_C;
+ break;
+ case DP_AUX_D:
+ aux_ch = AUX_CH_D;
+ break;
+ case DP_AUX_E:
+ aux_ch = AUX_CH_E;
+ break;
+ case DP_AUX_F:
+ aux_ch = AUX_CH_F;
+ break;
+ default:
+ MISSING_CASE(info->alternate_aux_channel);
+ aux_ch = AUX_CH_A;
+ break;
+ }
+
+ DRM_DEBUG_KMS("using AUX %c for port %c (VBT)\n",
+ aux_ch_name(aux_ch), port_name(port));
+
+ return aux_ch;
+}