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 <[email protected]> Cc: Ramalingam C <[email protected]> Acked-by: Maarten Lankhorst <[email protected]> Reviewed-by: Uma Shankar <[email protected]> Reviewed-by: Ramalingam C <[email protected]> Tested-by: Karthik B S <[email protected]> Signed-off-by: Anshuman Gupta <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
fracktal · Jan 13, 2021 · 9010362 · 9010362
1 parent 6581cc9
commit 9010362
Showing 1 changed file with 4 additions and 4 deletions.
diff --git 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))