iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915/bios: add helper functions to check output support

Browse Source 
These will be exposed to the rest of the driver and replace other
functions. Everything will operate on the child devices.

v2:
- Rebased, removed stray blank line
- Also abstracted intel_bios_encoder_supports_crt (Lucas)

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/2bd40ccc093796d16300742d1789d78ffac3c450.1615998927.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2021-03-17 18:36:49 +02:00
parent 7371fa342a
commit d0ab409d05
1 changed files with 59 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
drivers/gpu/drm/i915/display/intel_bios.c
View File

@ -1795,6 +1795,59 @@ static int parse_bdb_216_dp_max_link_rate(const int vbt_max_link_rate)
}
}
static void sanitize_device_type(struct intel_bios_encoder_data *devdata,
enum port port)
{
struct drm_i915_private *i915 = devdata->i915;
bool is_hdmi;
if (port != PORT_A || INTEL_GEN(i915) >= 12)
return;
if (!(devdata->child.device_type & DEVICE_TYPE_TMDS_DVI_SIGNALING))
return;
is_hdmi = !(devdata->child.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT);
drm_dbg_kms(&i915->drm, "VBT claims port A supports DVI%s, ignoring\n",
is_hdmi ? "/HDMI" : "");
devdata->child.device_type &= ~DEVICE_TYPE_TMDS_DVI_SIGNALING;
devdata->child.device_type |= DEVICE_TYPE_NOT_HDMI_OUTPUT;
}
static bool
intel_bios_encoder_supports_crt(const struct intel_bios_encoder_data *devdata)
{
return devdata->child.device_type & DEVICE_TYPE_ANALOG_OUTPUT;
}
static bool
intel_bios_encoder_supports_dvi(const struct intel_bios_encoder_data *devdata)
{
return devdata->child.device_type & DEVICE_TYPE_TMDS_DVI_SIGNALING;
}
static bool
intel_bios_encoder_supports_hdmi(const struct intel_bios_encoder_data *devdata)
{
return intel_bios_encoder_supports_dvi(devdata) &&
(devdata->child.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
}
static bool
intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata)
{
return devdata->child.device_type & DEVICE_TYPE_DISPLAYPORT_OUTPUT;
}
static bool
intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata)
{
return intel_bios_encoder_supports_dp(devdata) &&
devdata->child.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR;
}
static void parse_ddi_port(struct drm_i915_private *i915,
struct intel_bios_encoder_data *devdata)
{
@ -1816,19 +1869,13 @@ static void parse_ddi_port(struct drm_i915_private *i915,
return;
}
is_dvi = child->device_type & DEVICE_TYPE_TMDS_DVI_SIGNALING;
is_dp = child->device_type & DEVICE_TYPE_DISPLAYPORT_OUTPUT;
is_crt = child->device_type & DEVICE_TYPE_ANALOG_OUTPUT;
is_hdmi = is_dvi && (child->device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
is_edp = is_dp && (child->device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);
sanitize_device_type(devdata, port);
if (port == PORT_A && is_dvi && INTEL_GEN(i915) < 12) {
drm_dbg_kms(&i915->drm,
"VBT claims port A supports DVI%s, ignoring\n",
is_hdmi ? "/HDMI" : "");
is_dvi = false;
is_hdmi = false;
}
is_dvi = intel_bios_encoder_supports_dvi(devdata);
is_dp = intel_bios_encoder_supports_dp(devdata);
is_crt = intel_bios_encoder_supports_crt(devdata);
is_hdmi = intel_bios_encoder_supports_hdmi(devdata);
is_edp = intel_bios_encoder_supports_edp(devdata);
info->supports_dvi = is_dvi;
info->supports_hdmi = is_hdmi;