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| author |   Ramalingam C <ramalingam.c@intel.com> | 2018-04-05 17:33:22 +0530 |
|---|---|---|
| committer |   Sean Paul <seanpaul@chromium.org> | 2018-04-16 12:10:48 -0400 |
| commit | b8e47d87be65aec931846ced9a34a22d2021c311 (patch) | |
| tree | 378f21e4957b241b4ba86c4800c2c098e7bce68a /include/drm | |
| parent | Merge airlied/drm-next into drm-misc-fixes (diff) | |
| download | linux-dev-b8e47d87be65aec931846ced9a34a22d2021c311.tar.xz linux-dev-b8e47d87be65aec931846ced9a34a22d2021c311.zip | |
drm: Fix HDCP downstream dev count read
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]
v5:
Added "Fixes:" and HDCP keyword in subject [Rodrigo, Sean Paul]
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Fixes: 495eb7f877ab drm: Add some HDCP related #defines
cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1522929802-22850-1-git-send-email-ramalingam.c@intel.com
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_hdcp.h | 2 |
1 files changed, 1 insertions, 1 deletions
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)) |