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Diffstat (limited to 'kernel/include/drm/drm_dp_helper.h')
-rw-r--r--kernel/include/drm/drm_dp_helper.h22
1 files changed, 17 insertions, 5 deletions
diff --git a/kernel/include/drm/drm_dp_helper.h b/kernel/include/drm/drm_dp_helper.h
index 523f04c90..bb9d0deca 100644
--- a/kernel/include/drm/drm_dp_helper.h
+++ b/kernel/include/drm/drm_dp_helper.h
@@ -46,7 +46,7 @@
#define DP_AUX_I2C_WRITE 0x0
#define DP_AUX_I2C_READ 0x1
-#define DP_AUX_I2C_STATUS 0x2
+#define DP_AUX_I2C_WRITE_STATUS_UPDATE 0x2
#define DP_AUX_I2C_MOT 0x4
#define DP_AUX_NATIVE_WRITE 0x8
#define DP_AUX_NATIVE_READ 0x9
@@ -420,7 +420,7 @@
#define DP_TEST_SINK_MISC 0x246
# define DP_TEST_CRC_SUPPORTED (1 << 5)
-# define DP_TEST_COUNT_MASK 0x7
+# define DP_TEST_COUNT_MASK 0xf
#define DP_TEST_RESPONSE 0x260
# define DP_TEST_ACK (1 << 0)
@@ -568,6 +568,10 @@
#define MODE_I2C_READ 4
#define MODE_I2C_STOP 8
+/* DP 1.2 MST PORTs - Section 2.5.1 v1.2a spec */
+#define DP_MST_PHYSICAL_PORT_0 0
+#define DP_MST_LOGICAL_PORT_0 8
+
#define DP_LINK_STATUS_SIZE 6
bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
int lane_count);
@@ -578,6 +582,7 @@ u8 drm_dp_get_adjust_request_voltage(const u8 link_status[DP_LINK_STATUS_SIZE],
u8 drm_dp_get_adjust_request_pre_emphasis(const u8 link_status[DP_LINK_STATUS_SIZE],
int lane);
+#define DP_BRANCH_OUI_HEADER_SIZE 0xc
#define DP_RECEIVER_CAP_SIZE 0xf
#define EDP_PSR_RECEIVER_CAP_SIZE 2
@@ -633,6 +638,13 @@ drm_dp_enhanced_frame_cap(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
(dpcd[DP_MAX_LANE_COUNT] & DP_ENHANCED_FRAME_CAP);
}
+static inline bool
+drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
+{
+ return dpcd[DP_DPCD_REV] >= 0x12 &&
+ dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED;
+}
+
/*
* DisplayPort AUX channel
*/
@@ -679,9 +691,9 @@ struct drm_dp_aux_msg {
* An AUX channel can also be used to transport I2C messages to a sink. A
* typical application of that is to access an EDID that's present in the
* sink device. The .transfer() function can also be used to execute such
- * transactions. The drm_dp_aux_register_i2c_bus() function registers an
- * I2C adapter that can be passed to drm_probe_ddc(). Upon removal, drivers
- * should call drm_dp_aux_unregister_i2c_bus() to remove the I2C adapter.
+ * transactions. The drm_dp_aux_register() function registers an I2C
+ * adapter that can be passed to drm_probe_ddc(). Upon removal, drivers
+ * should call drm_dp_aux_unregister() to remove the I2C adapter.
* The I2C adapter uses long transfers by default; if a partial response is
* received, the adapter will drop down to the size given by the partial
* response for this transaction only.