Attach HDR property for Gen9 devices with MCA LSPCON
chips.
v2: Cleaned HDR property attachment logic based on capability
as per Jani Nikula's suggestion.
v3: Fixed the HDR property attachment logic as per the new changes
by Kai-Feng to align with lspcon detection failure on some devices.
v4: Add HDR proprty in late_register to handle lspcon detection,
as suggested by Ville.
Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 11 +++++++++++
drivers/gpu/drm/i915/display/intel_lspcon.c | 2 +-
drivers/gpu/drm/i915/display/intel_lspcon.h | 1 +
3 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index cf09aca7607b..0ce3204473fa 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -6714,6 +6714,8 @@ intel_dp_connector_register(struct drm_connector *connector)
{
struct drm_i915_private *i915 = to_i915(connector->dev);
struct intel_dp *intel_dp = intel_attached_dp(to_intel_connector(connector));
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ struct intel_lspcon *lspcon = &dig_port->lspcon;
int ret;
ret = intel_connector_register(connector);
@@ -6727,6 +6729,15 @@ intel_dp_connector_register(struct drm_connector *connector)
ret = drm_dp_aux_register(&intel_dp->aux);
if (!ret)
drm_dp_cec_register_connector(&intel_dp->aux, connector);
+
+ if (lspcon_init(dig_port)) {
+ lspcon_detect_hdr_capability(lspcon);
+ if (lspcon->hdr_supported)
+ drm_object_attach_property(&connector->base,
+ connector->dev->mode_config.hdr_output_metadata_property,
+ 0);
+ }
+
return ret;
}
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c
index 46565ae555b1..336494b60d11 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
@@ -553,7 +553,7 @@ void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon)
lspcon_wait_mode(lspcon, DRM_LSPCON_MODE_PCON);
}
-static bool lspcon_init(struct intel_digital_port *dig_port)
+bool lspcon_init(struct intel_digital_port *dig_port)
{
struct intel_dp *dp = &dig_port->dp;
struct intel_lspcon *lspcon = &dig_port->lspcon;
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.h b/drivers/gpu/drm/i915/display/intel_lspcon.h
index 98043ba50dd4..42ccb21c908f 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.h
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.h
@@ -15,6 +15,7 @@ struct intel_digital_port;
struct intel_encoder;
struct intel_lspcon;
+bool lspcon_init(struct intel_digital_port *dig_port);
void lspcon_detect_hdr_capability(struct intel_lspcon *lspcon);
void lspcon_resume(struct intel_digital_port *dig_port);
void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
--
2.26.2
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