drm: add dp helper to initialize remote aux channel.

[linux.git] / include / drm / drm_dp_helper.h

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 51ecb5112ef8e88dfea19c221efaec93ec072523..bc04467f7c3a563ba2cf54c704a3ff9116d25d6c 100644 (file)
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -307,7 +307,7 @@
 # define DP_DSC_THROUGHPUT_MODE_0_900       (12 << 0)
 # define DP_DSC_THROUGHPUT_MODE_0_950       (13 << 0)
 # define DP_DSC_THROUGHPUT_MODE_0_1000      (14 << 0)
-# define DP_DSC_THROUGHPUT_MODE_0_170       (15 << 4)
+# define DP_DSC_THROUGHPUT_MODE_0_170       (15 << 0) /* 1.4a */
 # define DP_DSC_THROUGHPUT_MODE_1_MASK      (0xf << 4)
 # define DP_DSC_THROUGHPUT_MODE_1_SHIFT     4
 # define DP_DSC_THROUGHPUT_MODE_1_UPSUPPORTED 0
@@ -1042,6 +1042,8 @@
 #define DP_SYMBOL_ERROR_COUNT_LANE2_PHY_REPEATER1          0xf0039 /* 1.3 */
 #define DP_SYMBOL_ERROR_COUNT_LANE3_PHY_REPEATER1          0xf003b /* 1.3 */
 #define DP_FEC_STATUS_PHY_REPEATER1                        0xf0290 /* 1.4 */
+#define DP_FEC_ERROR_COUNT_PHY_REPEATER1                    0xf0291 /* 1.4 */
+#define DP_FEC_CAPABILITY_PHY_REPEATER1                     0xf0294 /* 1.4a */
 
 /* Repeater modes */
 #define DP_PHY_REPEATER_MODE_TRANSPARENT                   0x55    /* 1.3 */
@@ -1463,6 +1465,7 @@ int drm_dp_downstream_id(struct drm_dp_aux *aux, char id[6]);
 void drm_dp_downstream_debug(struct seq_file *m, const u8 dpcd[DP_RECEIVER_CAP_SIZE],
                             const u8 port_cap[4], struct drm_dp_aux *aux);
 
+void drm_dp_remote_aux_init(struct drm_dp_aux *aux);
 void drm_dp_aux_init(struct drm_dp_aux *aux);
 int drm_dp_aux_register(struct drm_dp_aux *aux);
 void drm_dp_aux_unregister(struct drm_dp_aux *aux);
@@ -1520,6 +1523,13 @@ enum drm_dp_quirk {
         * The driver should ignore SINK_COUNT during detection.
         */
        DP_DPCD_QUIRK_NO_SINK_COUNT,
+       /**
+        * @DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD:
+        *
+        * The device supports MST DSC despite not supporting Virtual DPCD.
+        * The DSC caps can be read from the physical aux instead.
+        */
+       DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD,
 };
 
 /**