diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2021-03-17 18:36:46 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2021-03-18 14:43:42 +0200 |
| commit | 51f5748179d47609e3fb62dc69cf58a879ce1bb5 (patch) | |
| tree | d677cf27b541ff083e8df43bea3c76521c39c09d /drivers/gpu/drm/i915/display/intel_bios.c | |
| parent | 3ae04c0c7e63d266b48b6dff8a9e2375f6120570 (diff) | |
| download | linux-51f5748179d47609e3fb62dc69cf58a879ce1bb5.tar.bz2 | |
drm/i915/bios: create fake child devices on missing VBT
Instead of initialing data directly in ddi_port_info array, create fake
child devices for default outputs when the VBT is missing. This makes
further unification of output handling easier.
This will make intel_bios_is_port_present() return true for the fake
child devices. This may cause subtle changes in a handful of places.
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/91675b40a78bd04bf138598d979661257181880d.1615998927.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_bios.c | 47 |
1 files changed, 37 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 218e0dae3ece..e028728a5146 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -2087,8 +2087,8 @@ init_vbt_missing_defaults(struct drm_i915_private *i915) return; for_each_port_masked(port, ports) { - struct ddi_vbt_port_info *info = - &i915->vbt.ddi_port_info[port]; + struct display_device_data *devdata; + struct child_device_config *child; enum phy phy = intel_port_to_phy(i915, port); /* @@ -2098,11 +2098,38 @@ init_vbt_missing_defaults(struct drm_i915_private *i915) if (intel_phy_is_tc(i915, phy)) continue; - info->supports_dvi = (port != PORT_A && port != PORT_E); - info->supports_hdmi = info->supports_dvi; - info->supports_dp = (port != PORT_E); - info->supports_edp = (port == PORT_A); + /* Create fake child device config */ + devdata = kzalloc(sizeof(*devdata), GFP_KERNEL); + if (!devdata) + break; + + child = &devdata->child; + + if (port == PORT_F) + child->dvo_port = DVO_PORT_HDMIF; + else if (port == PORT_E) + child->dvo_port = DVO_PORT_HDMIE; + else + child->dvo_port = DVO_PORT_HDMIA + port; + + if (port != PORT_A && port != PORT_E) + child->device_type |= DEVICE_TYPE_TMDS_DVI_SIGNALING; + + if (port != PORT_E) + child->device_type |= DEVICE_TYPE_DISPLAYPORT_OUTPUT; + + if (port == PORT_A) + child->device_type |= DEVICE_TYPE_INTERNAL_CONNECTOR; + + list_add_tail(&devdata->node, &i915->vbt.display_devices); + + drm_dbg_kms(&i915->drm, + "Generating default VBT child device with type 0x04%x on port %c\n", + child->device_type, port_name(port)); } + + /* Bypass some minimum baseline VBT version checks */ + i915->vbt.version = 155; } static const struct bdb_header *get_bdb_header(const struct vbt_header *vbt) @@ -2279,10 +2306,6 @@ void intel_bios_init(struct drm_i915_private *i915) /* Depends on child device list */ parse_compression_parameters(i915, bdb); - /* Further processing on pre-parsed data */ - parse_sdvo_device_mapping(i915); - parse_ddi_ports(i915); - out: if (!vbt) { drm_info(&i915->drm, @@ -2290,6 +2313,10 @@ out: init_vbt_missing_defaults(i915); } + /* Further processing on pre-parsed or generated child device data */ + parse_sdvo_device_mapping(i915); + parse_ddi_ports(i915); + kfree(oprom_vbt); } |