Re: [Intel-gfx] [PATCH v3 39/40] drm/i915: Add HDCP2.2 support for DP connectors

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On Friday 18 May 2018 10:07 PM, Shankar, Uma wrote:

-----Original Message-----
From: Intel-gfx [mailto:intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of
Ramalingam C
Sent: Tuesday, April 3, 2018 7:28 PM
To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx;
seanpaul@xxxxxxxxxxxx; daniel@xxxxxxxx; chris@xxxxxxxxxxxxxxxxxx;
jani.nikula@xxxxxxxxxxxxxxx; Winkler, Tomas <tomas.winkler@xxxxxxxxx>;
Usyskin, Alexander <alexander.usyskin@xxxxxxxxx>
Cc: Vivi, Rodrigo <rodrigo.vivi@xxxxxxxxx>
Subject: [Intel-gfx] [PATCH v3 39/40] drm/i915: Add HDCP2.2 support for DP
connectors

On DP connector init, intel_hdcp_init is passed with a flag for hdcp2.2 support
based on the platform capability.
Looks ok to me. For me, hdcp2.2 capability should be added in dev_info.
As we discussed, since from gen10 onwards all platforms expected to support hdcp2.2,
having the hdcp2.2 support field in dev_info doesn't make much sense.

With that fixed.
Reviewed-by: Uma Shankar <uma.shankar@xxxxxxxxx>
If you are ok with above explanation I will add your reviewed-by to the patch.

Ram

v2:
  Rebased.
v3:
  No Changes.

Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dp.c   | 2 +-
drivers/gpu/drm/i915/intel_drv.h  | 1 +  drivers/gpu/drm/i915/intel_hdcp.c | 1 -
3 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index e5cb54ceda38..43318003ce14 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -6733,7 +6733,7 @@ intel_dp_init_connector(struct intel_digital_port
*intel_dig_port,

	if (is_hdcp_supported(dev_priv, port) && !intel_dp_is_edp(intel_dp)) {
		int ret = intel_hdcp_init(intel_connector, &intel_dp_hdcp_shim,
-					  false);
+					  is_hdcp2_supported(dev_priv));
		if (ret)
			DRM_DEBUG_KMS("HDCP init failed, skipping.\n");
	}
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 37f9a0e2ea13..2bb562738964 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1941,6 +1941,7 @@ int intel_hdcp_enable(struct intel_connector
*connector);  int intel_hdcp_disable(struct intel_connector *connector);  bool
is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port);  void
intel_hdcp_handle_cp_irq(struct intel_connector *connector);
+bool is_hdcp2_supported(struct drm_i915_private *dev_priv);

/* intel_psr.c */
#define CAN_PSR(dev_priv) (HAS_PSR(dev_priv) && dev_priv->psr.sink_support)
diff --git a/drivers/gpu/drm/i915/intel_hdcp.c
b/drivers/gpu/drm/i915/intel_hdcp.c
index 9386b451191e..9d5cade3b236 100644
--- a/drivers/gpu/drm/i915/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/intel_hdcp.c
@@ -1723,7 +1723,6 @@ static int mei_cldev_notify(struct notifier_block *nb,
unsigned long event,
	return NOTIFY_OK;
}

-static inline
bool is_hdcp2_supported(struct drm_i915_private *dev_priv)  {
	return (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv) ||
--
2.7.4

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