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drm/i915/hdcp: Move HDCP enc status timeout to header

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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: 'commit 7e90e8d0c0 ("drm/i915: Increase timeout for Encrypt
status change")'
Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Tested-by: Karthik B S <karthik.b.s@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-7-anshuman.gupta@intel.com
This commit is contained in:
Anshuman Gupta 2021-01-11 13:41:07 +05:30
parent fc6097d4fb
commit fbf652bdb4
2 changed files with 6 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/gpu/drm/i915/display/intel_hdcp.c
View file

@ -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;
@ -1641,7 +1640,7 @@ 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;
}
@ -1665,7 +1664,7 @@ 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");

2
drivers/gpu/drm/i915/display/intel_hdcp.h
View file

@ -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;