Commit 05f3a6f5 authored by Ramalingam C's avatar Ramalingam C
Browse files

drm/hdcp: fix DRM_HDCP_2_KSV_COUNT_2_LSBITS 



Need to extract the 2 most significant bits from a byte for constructing
the revoked KSV count of the SRM.

Signed-off-by: default avatarRamalingam C <ramalingam.c@intel.com>
Reviewed-by: default avatarAnshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200212102942.26568-3-ramalingam.c@intel.com
parent 79643fdd

include/drm/drm_hdcp.h

+1 −1
Original line number Diff line number Diff line
@@ -276,7 +276,7 @@ void drm_hdcp_cpu_to_be24(u8 seq_num[HDCP_2_2_SEQ_NUM_LEN], u32 val) 
#define DRM_HDCP_2_VRL_LENGTH_SIZE		3

#define DRM_HDCP_2_DCP_SIG_SIZE			384

#define DRM_HDCP_2_NO_OF_DEV_PLUS_RESERVED_SZ	4

#define DRM_HDCP_2_KSV_COUNT_2_LSBITS(byte)	(((byte) & 0xC) >> 6)

#define DRM_HDCP_2_KSV_COUNT_2_LSBITS(byte)	(((byte) & 0xC0) >> 6)



struct hdcp_srm_header {

	u8 srm_id;

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