On 2020-02-12 at 15:59:39 +0530, Ramalingam C wrote:
Need to extract the 2 most significant bits from a byte for constructing the revoked KSV count of the SRM.
Signed-off-by: Ramalingam C ramalingam.c@intel.com
include/drm/drm_hdcp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index d512089b873f..c6bab4986a65 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -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)
LGTM, verified wrt Table 5.1 HDCP HDMI specs page 64. Reviewed-by: Anshuman Gupta anshuman.gupta@intel.com
struct hdcp_srm_header { u8 srm_id; -- 2.20.1
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