drm/dp_mst: Deprecate drm_dp_find_vcpi_slots()

[linux.git] / drivers / gpu / drm / drm_dp_mst_topology.c

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 7780567aa6692fa56450aed78ff101b294fe7da6..8c3cfac437f431e5dfe2792f61efc45b39e0896d 100644 (file)
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -439,6 +439,7 @@ static bool drm_dp_sideband_parse_remote_dpcd_read(struct drm_dp_sideband_msg_rx
        if (idx > raw->curlen)
                goto fail_len;
        repmsg->u.remote_dpcd_read_ack.num_bytes = raw->msg[idx];
+       idx++;
        if (idx > raw->curlen)
                goto fail_len;
 
@@ -2568,9 +2569,16 @@ struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_
 EXPORT_SYMBOL(drm_dp_mst_get_edid);
 
 /**
- * drm_dp_find_vcpi_slots() - find slots for this PBN value
+ * drm_dp_find_vcpi_slots() - Find VCPI slots for this PBN value
  * @mgr: manager to use
  * @pbn: payload bandwidth to convert into slots.
+ *
+ * Calculate the number of VCPI slots that will be required for the given PBN
+ * value. This function is deprecated, and should not be used in atomic
+ * drivers.
+ *
+ * RETURNS:
+ * The total slots required for this port, or error.
  */
 int drm_dp_find_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr,
                           int pbn)