[v9,6/6] drm/hdcp: reference for srm file format

Submitted by Ramalingam C on July 8, 2019, 11:21 a.m.

Details

Message ID 20190708112116.1780-7-ramalingam.c@intel.com
State New
Headers show
Series "HDCP2.2 Phase II" ( rev: 11 ) in Intel GFX

Not browsing as part of any series.

Commit Message

Ramalingam C July 8, 2019, 11:21 a.m.
In the kernel documentation, HDCP specifications links are shared as a
reference for SRM table format.

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
---
 drivers/gpu/drm/drm_hdcp.c | 7 +++++++
 1 file changed, 7 insertions(+)

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diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c
index 77433ee3d652..803bf8283b83 100644
--- a/drivers/gpu/drm/drm_hdcp.c
+++ b/drivers/gpu/drm/drm_hdcp.c
@@ -271,6 +271,13 @@  static void drm_hdcp_request_srm(struct drm_device *drm_dev)
  *
  * SRM should be presented in the name of "display_hdcp_srm.bin".
  *
+ * Format of the SRM table that userspace needs to write into the binary file
+ * is defined at
+ * 1. Renewability chapter on 55th page of HDCP 1.4 specification
+ * https://www.digital-cp.com/sites/default/files/specifications/HDCP%20Specification%20Rev1_4_Secure.pdf
+ * 2. Renewability chapter on 63rd page of HDCP 2.2 specification
+ * https://www.digital-cp.com/sites/default/files/specifications/HDCP%20on%20HDMI%20Specification%20Rev2_2_Final1.pdf
+ *
  * Returns:
  * TRUE on any of the KSV is revoked, else FALSE.
  */