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authorVille Syrjälä2019-01-22 22:03:00 +0200
committerVille Syrjälä2019-01-30 23:23:13 +0200
commit45bbda1e35f4943fec6522ef0cdb63cb9ab5780b (patch)
tree70c107eb334fd207bee38e85a877e68c370d5c59 /include/drm
parentd9f7bb56c2925ea0641fe5121b954acc6a873605 (diff)
drm/dp/mst: Provide defines for ACK vs. NAK reply type
Make the code a bit easier to read by providing symbolic names for the reply_type (ACK vs. NAK). Also clean up some brace stuff while at it. v2: s/DP_REPLY/DP_SIDEBAND_REPLY/ (DK) Fix some checkpatch issues Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190122200301.18633-1-ville.syrjala@linux.intel.com
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_dp_helper.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index c223c87ef119..a62d3750663a 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -992,6 +992,10 @@
#define DP_SINK_EVENT_NOTIFY 0x30
#define DP_QUERY_STREAM_ENC_STATUS 0x38
+/* DP 1.2 MST sideband reply types */
+#define DP_SIDEBAND_REPLY_ACK 0x00
+#define DP_SIDEBAND_REPLY_NAK 0x01
+
/* DP 1.2 MST sideband nak reasons - table 2.84 */
#define DP_NAK_WRITE_FAILURE 0x01
#define DP_NAK_INVALID_READ 0x02