[PATCH v5 13/16] drm/i915: Add connector to hdcp_shim->check_link()

[Sean Paul]

From: Sean Paul <seanpaul at chromium.org>

Currently we derive the connector from digital port in check_link(). For
MST, this isn't sufficient since the digital port passed into the
function can have multiple connectors downstream. This patch adds
connector to the check_link() arguments so we have it when we need it.

Signed-off-by: Sean Paul <seanpaul at chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200218220242.107265-13-sean@poorly.run # v4

Changes in v4:
-Added to the set
Changes in v5:
-None
---
 drivers/gpu/drm/i915/display/intel_display_types.h | 3 ++-
 drivers/gpu/drm/i915/display/intel_dp_hdcp.c       | 3 ++-
 drivers/gpu/drm/i915/display/intel_hdcp.c          | 2 +-
 drivers/gpu/drm/i915/display/intel_hdmi.c          | 5 ++---
 4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 3cac51955f250..9cc43dcbb518f 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -312,7 +312,8 @@ struct intel_hdcp_shim {
 				 bool enable);
 
 	/* Ensures the link is still protected */
-	bool (*check_link)(struct intel_digital_port *intel_dig_port);
+	bool (*check_link)(struct intel_digital_port *intel_dig_port,
+			   struct intel_connector *connector);
 
 	/* Detects panel's hdcp capability. This is optional for HDMI. */
 	int (*hdcp_capable)(struct intel_digital_port *intel_dig_port,
diff --git a/drivers/gpu/drm/i915/display/intel_dp_hdcp.c b/drivers/gpu/drm/i915/display/intel_dp_hdcp.c
index abcb53975e0d5..549f02f622b45 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_hdcp.c
@@ -538,7 +538,8 @@ int intel_dp_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port,
 }
 
 static
-bool intel_dp_hdcp_check_link(struct intel_digital_port *intel_dig_port)
+bool intel_dp_hdcp_check_link(struct intel_digital_port *intel_dig_port,
+			      struct intel_connector *connector)
 {
 	ssize_t ret;
 	u8 bstatus;
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index fc3ce7586084c..e0418ad202d1f 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -956,7 +956,7 @@ static int intel_hdcp_check_link(struct intel_connector *connector)
 		goto out;
 	}
 
-	if (hdcp->shim->check_link(intel_dig_port)) {
+	if (hdcp->shim->check_link(intel_dig_port, connector)) {
 		if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
 			intel_hdcp_update_value(connector,
 				DRM_MODE_CONTENT_PROTECTION_ENABLED, true);
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 8b32c3c986bca..288525a9fdf7c 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -1522,11 +1522,10 @@ int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port,
 }
 
 static
-bool intel_hdmi_hdcp_check_link(struct intel_digital_port *intel_dig_port)
+bool intel_hdmi_hdcp_check_link(struct intel_digital_port *intel_dig_port,
+				struct intel_connector *connector)
 {
 	struct drm_i915_private *i915 = to_i915(intel_dig_port->base.base.dev);
-	struct intel_connector *connector =
-		intel_dig_port->hdmi.attached_connector;
 	enum port port = intel_dig_port->base.port;
 	enum transcoder cpu_transcoder = connector->hdcp.cpu_transcoder;
 	int ret;
-- 
Sean Paul, Software Engineer, Google / Chromium OS