[Intel-gfx] [PATCH 4/4] drm/i915: Add HDCP2.2 capable debug print

Anshuman Gupta anshuman.gupta at intel.com
Tue Jan 28 13:54:25 UTC 2020


Few CI panel claims to support HDCP 2.2 but at CI
HDCP IGT test execution these panels are not detecting
as HDCP 2.2 supported panels. Adding HDCP 2.2 version
print will be useful in such cases.

CC: Ramalingam C <ramalingam.c at intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c   | 2 ++
 drivers/gpu/drm/i915/display/intel_hdmi.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 991f343579ef..22a3c3e9ade2 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -6449,6 +6449,8 @@ int intel_dp_hdcp2_capable(struct intel_digital_port *intel_dig_port,
 	if (ret != HDCP_2_2_RXCAPS_LEN)
 		return ret >= 0 ? -EIO : ret;
 
+	DRM_DEBUG_KMS("HDCP 2.2 RxCaps VERSION 0x%x\n", rx_caps[0]);
+
 	if (rx_caps[0] == HDCP_2_2_RX_CAPS_VERSION_VAL &&
 	    HDCP_2_2_DP_HDCP_CAPABLE(rx_caps[2]))
 		*capable = true;
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 685589064d10..a7af0be83397 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -1701,6 +1701,8 @@ int intel_hdmi_hdcp2_capable(struct intel_digital_port *intel_dig_port,
 	*capable = false;
 	ret = intel_hdmi_hdcp_read(intel_dig_port, HDCP_2_2_HDMI_REG_VER_OFFSET,
 				   &hdcp2_version, sizeof(hdcp2_version));
+	DRM_DEBUG_KMS("HDCP2Version 0%x\n", hdcp2_version);
+
 	if (!ret && hdcp2_version & HDCP_2_2_HDMI_SUPPORT_MASK)
 		*capable = true;
 
-- 
2.24.0



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