[PATCH v3 3/7] drm/i915/xe3lpd: Include hblank restriction for xe3lpd

Matt Atwood matthew.s.atwood at intel.com
Tue Oct 15 23:11:20 UTC 2024


From: Suraj Kandpal <suraj.kandpal at intel.com>

hblank restriction now includes all of xe3.

v2: add additional definition instead of function, commit message typo
fix and update.
v3: restore lost conditional from v2.

Signed-off-by: Suraj Kandpal <suraj.kandpal at intel.com>
Signed-off-by: Matt Atwood <matthew.s.atwood at intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdcp.c | 4 ++++
 drivers/gpu/drm/i915/i915_reg.h           | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index ed6aa87403e2..a99b41f258e4 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -51,6 +51,10 @@ intel_hdcp_disable_hdcp_line_rekeying(struct intel_encoder *encoder,
 			intel_de_rmw(display,
 				     TRANS_DDI_FUNC_CTL(display, hdcp->cpu_transcoder),
 				     0, TRANS_DDI_HDCP_LINE_REKEY_DISABLE);
+		else if (DISPLAY_VER(display) >=30)
+			intel_de_rmw(display,
+				     TRANS_DDI_FUNC_CTL(display, hdcp->cpu_transcoder),
+				     0, XE3_TRANS_DDI_HDCP_LINE_REKEY_DISABLE);
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index d30459f8d1cb..fc30e0056b07 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3833,6 +3833,7 @@ enum skl_power_gate {
 #define  TRANS_DDI_EDP_INPUT_C_ONOFF	(6 << 12)
 #define  TRANS_DDI_EDP_INPUT_D_ONOFF	(7 << 12)
 #define  TRANS_DDI_HDCP_LINE_REKEY_DISABLE	REG_BIT(12)
+#define  XE3_TRANS_DDI_HDCP_LINE_REKEY_DISABLE	REG_BIT(15)
 #define  TRANS_DDI_MST_TRANSPORT_SELECT_MASK	REG_GENMASK(11, 10)
 #define  TRANS_DDI_MST_TRANSPORT_SELECT(trans)	\
 	REG_FIELD_PREP(TRANS_DDI_MST_TRANSPORT_SELECT_MASK, trans)
-- 
2.45.0



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