On Wed, Mar 17, 2021 at 06:36:49PM +0200, Jani Nikula wrote:
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.demar...@intel.com>
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
drivers/gpu/drm/i915/display/intel_bios.c | 71 +++++++++++++++++++----
1 file changed, 59 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c
b/drivers/gpu/drm/i915/display/intel_bios.c
index 40fd60acd548..43cb5048ab9a 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -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" : "");
nit: a little more readable if this function uses the helpers you just
defined:
if (!intel_bios_encoder_supports_dvi(devdata))
return;
drm_dbg_kms(&i915->drm, "VBT claims port A supports DVI%s, ignoring\n",
intel_bios_encoder_supports_hdmi(devdata) ? "/HDMI" : "");
although the lines below are manipulating the device_type and may be
good to let the constants here, too. Up to you.
Reviewed-by: Lucas De Marchi <lucas.demar...@intel.com>
Lucas De Marchi
+
+ 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;
--
2.20.1
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