On Fri, 5 Jul 2019 06:16:42 +0530 Ramalingam C <ramalingam.c@xxxxxxxxx> wrote: > In the kernel documentation, HDCP specifications links are shared as a > reference for SRM table format. > > Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx> > --- > drivers/gpu/drm/drm_hdcp.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > 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. > */ Hi, this look good, publicly accessible spec links even. I'm happy with this, but I repeat that the Weston work[1] does not directly prove this UAPI (perhaps not necessary either?). [1] https://gitlab.freedesktop.org/wayland/weston/merge_requests/48 Thanks, pq
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