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drm/hdcp: reference for srm file format 

In the kernel documentation, HDCP specifications links are shared as a
reference for SRM table format.

v2:
  Fixed small nits. [Shashank]

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/320968/?series=57232&rev=14
This commit is contained in:
Ramalingam C 2019-08-01 17:11:19 +05:30
parent a41e71f4e7
commit bc0380b9e5
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/drm_hdcp.c
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@ -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.
*/