On Thursday 05 April 2018 12:53 AM, Sean Paul wrote:
On Wed, Apr 04, 2018 at 12:07:41PM -0700, Rodrigo Vivi wrote:
On Wed, Apr 04, 2018 at 11:57:42PM +0530, Ramalingam C wrote:
In both HDMI and DP, device count is represented by 6:0 bits of a
register(BInfo/Bstatus)
So macro for bitmasking the device_count is fixed(0x3F->0x7F).
v3:
Retained the Rb-ed.
v4:
%s/drm\/i915/drm [rodrigo]
Shouldn't this patch have a "Fixes:" ?
Yes, I think that'd be good.
Will add
Fixes: 495eb7f877ab drm: Add some HDCP related #defines
cc: stable?
It couldn't hurt.
Sorry what is needed here?
I pushed first 3 patches on the series to dinq.
I believe this one here could be there with Dave's ack or
maybe on drm-misc-fixes?
Meh. The severity of this isn't too big, given that I doubt people care _too_
much about plugging in more than 64 HDCP-enabled devices. If you want to drop it
in -misc-next-fixes, I can send it out next week.
While we're asking for a respin, could we add HDCP somewhere in the subject?
will change the sub to
drm: Fix HDCP downstream dev count read
--Ram
Sean
Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx>
cc: Sean Paul <seanpaul@xxxxxxxxxxxx>
Reviewed-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
---
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 562fa7df2637..98e63d870139 100644
--- a/include/drm/drm_hdcp.h
+++ b/include/drm/drm_hdcp.h
@@ -19,7 +19,7 @@
#define DRM_HDCP_RI_LEN 2
#define DRM_HDCP_V_PRIME_PART_LEN 4
#define DRM_HDCP_V_PRIME_NUM_PARTS 5
-#define DRM_HDCP_NUM_DOWNSTREAM(x) (x & 0x3f)
+#define DRM_HDCP_NUM_DOWNSTREAM(x) (x & 0x7f)
#define DRM_HDCP_MAX_CASCADE_EXCEEDED(x) (x & BIT(3))
#define DRM_HDCP_MAX_DEVICE_EXCEEDED(x) (x & BIT(7))
--
2.7.4
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