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authorAnshuman Gupta <anshuman.gupta@intel.com>2021-01-11 09:11:14 +0100
committerAnshuman Gupta <anshuman.gupta@intel.com>2021-01-13 03:59:32 +0100
commit90103622c30b13d97a1f5ae7d03cdd0fd79951c3 (patch)
tree515e7af251f4d0a6e408b402edac812dbb75cb25 /include/drm/drm_hdcp.h
parentmisc/mei/hdcp: Fix AUTH_STREAM_REQ cmd buffer len (diff)
downloadlinux-90103622c30b13d97a1f5ae7d03cdd0fd79951c3.tar.xz
linux-90103622c30b13d97a1f5ae7d03cdd0fd79951c3.zip
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
Diffstat (limited to 'include/drm/drm_hdcp.h')
-rw-r--r--include/drm/drm_hdcp.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h
index fe58dbb46962..ac22c246542a 100644
--- a/include/drm/drm_hdcp.h
+++ b/include/drm/drm_hdcp.h
@@ -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))