[PATCH v2 3/6] drm/i915/lspcon: change signature of lspcon_detect_hdr_capability()

[Jani Nikula <jani.nikula@intel.com>]

Switch from struct intel_lspcon to struct intel_digital_port to unify,
and return the value so the caller doesn't have to look at
lspcon->hdr_detected directly.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c     | 4 +---
 drivers/gpu/drm/i915/display/intel_lspcon.c | 5 ++++-
 drivers/gpu/drm/i915/display/intel_lspcon.h | 2 +-
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index ef182ef574f7..2db7741c25bd 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5844,7 +5844,6 @@ intel_dp_connector_register(struct drm_connector *connector)
 	struct intel_display *display = to_intel_display(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);
@@ -5867,8 +5866,7 @@ intel_dp_connector_register(struct drm_connector *connector)
 	 * efficiently and streamlined.
 	 */
 	if (lspcon_init(dig_port)) {
-		lspcon_detect_hdr_capability(lspcon);
-		if (lspcon->hdr_supported)
+		if (lspcon_detect_hdr_capability(dig_port))
 			drm_connector_attach_hdr_output_metadata_property(connector);
 	}
 
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c
index e54aad8a5f7f..2dd2b700b0f3 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
@@ -121,8 +121,9 @@ static u32 get_hdr_status_reg(struct intel_lspcon *lspcon)
 		return DPCD_PARADE_LSPCON_HDR_STATUS;
 }
 
-void lspcon_detect_hdr_capability(struct intel_lspcon *lspcon)
+bool lspcon_detect_hdr_capability(struct intel_digital_port *dig_port)
 {
+	struct intel_lspcon *lspcon = &dig_port->lspcon;
 	struct intel_dp *intel_dp = lspcon_to_intel_dp(lspcon);
 	struct intel_display *display = to_intel_display(intel_dp);
 	u8 hdr_caps;
@@ -138,6 +139,8 @@ void lspcon_detect_hdr_capability(struct intel_lspcon *lspcon)
 		drm_dbg_kms(display->drm, "LSPCON capable of HDR\n");
 		lspcon->hdr_supported = true;
 	}
+
+	return lspcon->hdr_supported;
 }
 
 static enum drm_lspcon_mode lspcon_get_current_mode(struct intel_lspcon *lspcon)
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.h b/drivers/gpu/drm/i915/display/intel_lspcon.h
index 4c8ba3ddbac4..18cc15e5221d 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.h
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.h
@@ -17,7 +17,7 @@ struct intel_lspcon;
 
 bool lspcon_init(struct intel_digital_port *dig_port);
 bool intel_lspcon_active(struct intel_digital_port *dig_port);
-void lspcon_detect_hdr_capability(struct intel_lspcon *lspcon);
+bool lspcon_detect_hdr_capability(struct intel_digital_port *dig_port);
 void lspcon_resume(struct intel_digital_port *dig_port);
 void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
 void lspcon_write_infoframe(struct intel_encoder *encoder,
-- 
2.39.5