Commit 90103622 authored by Anshuman Gupta's avatar Anshuman Gupta
Browse files

drm/hdcp: Max MST content streams 



Let's define Maximum MST content streams up to four
generically which can be supported by modern display
controllers.

Cc: Sean Paul <seanpaul@chromium.org>
Cc: Ramalingam C <ramalingam.c@intel.com>
Acked-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: default avatarUma Shankar <uma.shankar@intel.com>
Reviewed-by: default avatarRamalingam C <ramalingam.c@intel.com>
Tested-by: default avatarKarthik B S <karthik.b.s@intel.com>
Signed-off-by: default avatarAnshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-14-anshuman.gupta@intel.com
parent 6581cc9e

include/drm/drm_hdcp.h

+4 −4
Original line number Diff line number Diff line
@@ -101,11 +101,11 @@ 


/* Following Macros take a byte at a time for bit(s) masking */

/*

 * TODO: This has to be changed for DP MST, as multiple stream on

 * same port is possible.

 * For HDCP2.2 on HDMI and DP SST this value is always 1.

 * TODO: HDCP_2_2_MAX_CONTENT_STREAMS_CNT is based upon actual

 * H/W MST streams capacity.

 * This required to be moved out to platform specific header.

 */

#define HDCP_2_2_MAX_CONTENT_STREAMS_CNT	1

#define HDCP_2_2_MAX_CONTENT_STREAMS_CNT	4

#define HDCP_2_2_TXCAP_MASK_LEN			2

#define HDCP_2_2_RXCAPS_LEN			3

#define HDCP_2_2_RX_REPEATER(x)			((x) & BIT(0))