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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: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Tested-by: Karthik B S <karthik.b.s@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-14-anshuman.gupta@intel.com
master
Anshuman Gupta 2021-01-11 13:41:14 +05:30
parent 6581cc9e5d
commit 90103622c3
1 changed files with 4 additions and 4 deletions
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8
include/drm/drm_hdcp.h
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@ -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))