From: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
We need to disable HDCP Line Rekeying for Xe3 when we are using an HDMI
encoder.
v2: add additional definition instead of function, commit message typo
fix and update.
v3: restore lost conditional from v2.
v4: subject line and subject message updated, fix the if ladder order,
fix the bit definition order.
Signed-off-by: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
Signed-off-by: Matt Atwood <matthew.s.atwood@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_hdcp.c | 10 +++++++---
drivers/gpu/drm/i915/i915_reg.h | 1 +
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index ed6aa87403e2..70dfc9d4d6ac 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -43,14 +43,18 @@ intel_hdcp_disable_hdcp_line_rekeying(struct intel_encoder *encoder,
return;
if (DISPLAY_VER(display) >= 14) {
- if (IS_DISPLAY_VER_STEP(display, IP_VER(14, 0), STEP_D0, STEP_FOREVER))
- intel_de_rmw(display, MTL_CHICKEN_TRANS(hdcp->cpu_transcoder),
- 0, HDCP_LINE_REKEY_DISABLE);
+ 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);
else if (IS_DISPLAY_VER_STEP(display, IP_VER(14, 1), STEP_B0, STEP_FOREVER) ||
IS_DISPLAY_VER_STEP(display, IP_VER(20, 0), STEP_B0, STEP_FOREVER))
intel_de_rmw(display,
TRANS_DDI_FUNC_CTL(display, hdcp->cpu_transcoder),
0, TRANS_DDI_HDCP_LINE_REKEY_DISABLE);
+ else if (IS_DISPLAY_VER_STEP(display, IP_VER(14, 0), STEP_D0, STEP_FOREVER))
+ intel_de_rmw(display, MTL_CHICKEN_TRANS(hdcp->cpu_transcoder),
+ 0, HDCP_LINE_REKEY_DISABLE);
}
}
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 89e4381f8baa..8d758947f301 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3817,6 +3817,7 @@ enum skl_power_gate {
#define TRANS_DDI_PVSYNC (1 << 17)
#define TRANS_DDI_PHSYNC (1 << 16)
#define TRANS_DDI_PORT_SYNC_ENABLE REG_BIT(15)
+#define XE3_TRANS_DDI_HDCP_LINE_REKEY_DISABLE REG_BIT(15)
#define TRANS_DDI_EDP_INPUT_MASK (7 << 12)
#define TRANS_DDI_EDP_INPUT_A_ON (0 << 12)
#define TRANS_DDI_EDP_INPUT_A_ONOFF (4 << 12)
--
2.45.0
