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From: Anshuman Gupta <anshuman.gupta@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: seanpaul@chromium.org
Subject: [Intel-gfx] [PATCH v2 2/4] drm/i915/hdcp: Move HDCP enc status timeout to header
Date: Wed, 23 Sep 2020 16:35:25 +0530	[thread overview]
Message-ID: <20200923110527.28661-3-anshuman.gupta@intel.com> (raw)
In-Reply-To: <20200923110527.28661-1-anshuman.gupta@intel.com>

DP MST stream encryption status requires time of a link frame
in order to change its status, but as there were some HDCP
encryption timeout observed earlier, it is safer to use
ENCRYPT_STATUS_CHANGE_TIMEOUT_MS timeout for stream status too,
it requires to move the macro to a header.
It will be used by both HDCP{1.x,2.x} stream status timeout.

Related: 7e90e8d0c0ea ("drm/i915: Increase timeout for Encrypt
status change")
Cc: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdcp.c | 9 ++++-----
 drivers/gpu/drm/i915/display/intel_hdcp.h | 2 ++
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 1d5026bb45a4..f401fdaa7336 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -23,7 +23,6 @@
 #include "intel_connector.h"
 
 #define KEY_LOAD_TRIES	5
-#define ENCRYPT_STATUS_CHANGE_TIMEOUT_MS	50
 #define HDCP2_LC_RETRY_CNT			3
 
 static
@@ -762,7 +761,7 @@ static int intel_hdcp_auth(struct intel_connector *connector)
 	if (intel_de_wait_for_set(dev_priv,
 				  HDCP_STATUS(dev_priv, cpu_transcoder, port),
 				  HDCP_STATUS_ENC,
-				  ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
+				  HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
 		drm_err(&dev_priv->drm, "Timed out waiting for encryption\n");
 		return -ETIMEDOUT;
 	}
@@ -809,7 +808,7 @@ static int _intel_hdcp_disable(struct intel_connector *connector)
 	intel_de_write(dev_priv, HDCP_CONF(dev_priv, cpu_transcoder, port), 0);
 	if (intel_de_wait_for_clear(dev_priv,
 				    HDCP_STATUS(dev_priv, cpu_transcoder, port),
-				    ~0, ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
+				    ~0, HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
 		drm_err(&dev_priv->drm,
 			"Failed to disable HDCP, timeout clearing status\n");
 		return -ETIMEDOUT;
@@ -1662,7 +1661,7 @@ static int hdcp2_enable_encryption(struct intel_connector *connector)
 				    HDCP2_STATUS(dev_priv, cpu_transcoder,
 						 port),
 				    LINK_ENCRYPTION_STATUS,
-				    ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
+				    HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
 
 	return ret;
 }
@@ -1686,7 +1685,7 @@ static int hdcp2_disable_encryption(struct intel_connector *connector)
 				      HDCP2_STATUS(dev_priv, cpu_transcoder,
 						   port),
 				      LINK_ENCRYPTION_STATUS,
-				      ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
+				      HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS);
 	if (ret == -ETIMEDOUT)
 		drm_dbg_kms(&dev_priv->drm, "Disable Encryption Timedout");
 
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.h b/drivers/gpu/drm/i915/display/intel_hdcp.h
index bc51c1e9b481..b912a3a0f5b8 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.h
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.h
@@ -8,6 +8,8 @@
 
 #include <linux/types.h>
 
+#define HDCP_ENCRYPT_STATUS_CHANGE_TIMEOUT_MS	50
+
 struct drm_connector;
 struct drm_connector_state;
 struct drm_i915_private;
-- 
2.26.2

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  parent reply	other threads:[~2020-09-23 11:16 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-23 11:05 [Intel-gfx] [PATCH v2 0/4] Gen12 HDCP 1.4 support on DP MST Anshuman Gupta
2020-09-23 11:05 ` [Intel-gfx] [PATCH v2 1/4] drm/i915/hdcp: DP MST transcoder for link and stream Anshuman Gupta
2020-09-23 11:05 ` Anshuman Gupta [this message]
2020-09-23 11:05 ` [Intel-gfx] [PATCH v2 3/4] drm/i915/hdcp: HDCP stream encryption support Anshuman Gupta
2020-09-23 11:05 ` [Intel-gfx] [PATCH v2 4/4] drm/i915/hdcp: Enable Gen12 HDCP 1.4 DP MST support Anshuman Gupta
2020-09-23 11:32 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Gen12 HDCP 1.4 support on DP MST (rev2) Patchwork
2020-09-23 11:33 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2020-09-23 11:57 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-09-23 15:20 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork

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