drm/radeon/kms: DP fixes and cleanup from the ddx

- dpcp -> dpcd
- fix up dig encoder routing
- aux transaction table takes delay in 10 usec units
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/atombios_dp.c

@@ -34,7 +34,7 @@
 #define DP_LINK_STATUS_SIZE	6
 
 bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes,
-			   int num_bytes, u8 *read_byte, 
+			   int num_bytes, u8 *read_byte,
 			   u8 read_buf_len, u8 delay)
 {
 	struct drm_device *dev = chan->dev;
@@ -42,9 +42,9 @@ bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes,
 	PROCESS_AUX_CHANNEL_TRANSACTION_PS_ALLOCATION args;
 	int index = GetIndexIntoMasterTable(COMMAND, ProcessAuxChannelTransaction);
 	unsigned char *base;
-	
+
 	memset(&args, 0, sizeof(args));
-	
+
 	base = (unsigned char *)rdev->mode_info.atom_context->scratch;
 
 	memcpy(base, req_bytes, num_bytes);
@@ -53,7 +53,7 @@ bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes,
 	args.lpDataOut = 16;
 	args.ucDataOutLen = 0;
 	args.ucChannelID = chan->i2c_id;
-	args.ucDelay = delay;
+	args.ucDelay = delay / 10;
 
 	atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 
@@ -158,24 +158,24 @@ bool radeon_dp_aux_native_read(struct radeon_connector *radeon_connector, uint16
 	return ret;
 }
 
-void radeon_dp_getdpcp(struct radeon_connector *radeon_connector)
+void radeon_dp_getdpcd(struct radeon_connector *radeon_connector)
 {
 	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
 	u8 msg[25];
 	int ret;
 
-	ret = radeon_dp_aux_native_read(radeon_connector, DP_DPCP_REV, 0, 8, msg);
+	ret = radeon_dp_aux_native_read(radeon_connector, DP_DPCD_REV, 0, 8, msg);
 	if (ret) {
-		memcpy(radeon_dig_connector->dpcp, msg, 8);
-		{ 
+		memcpy(radeon_dig_connector->dpcd, msg, 8);
+		{
 			int i;
-			printk("DPCP: ");
+			printk("DPCD: ");
 			for (i = 0; i < 8; i++)
 				printk("%02x ", msg[i]);
 			printk("\n");
 		}
 	}
-	radeon_dig_connector->dpcp[0] = 0;
+	radeon_dig_connector->dpcd[0] = 0;
 	return;
 }
 
@@ -199,8 +199,8 @@ static bool atom_dp_get_link_status(struct radeon_connector *radeon_connector,
 static void dp_set_power(struct radeon_connector *radeon_connector, u8 power_state)
 {
 	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
-	if (radeon_dig_connector->dpcp[0] >= 0x11) {
-		radeon_dp_aux_native_write(radeon_connector, 0x600, 1,
+	if (radeon_dig_connector->dpcd[0] >= 0x11) {
+		radeon_dp_aux_native_write(radeon_connector, DP_SET_POWER, 1,
 					   &power_state);
 	}
 }

drivers/gpu/drm/radeon/radeon_connectors.c

@@ -923,7 +923,7 @@ static enum drm_connector_status radeon_dp_detect(struct drm_connector *connecto
 
 	sink_type = radeon_dp_getsinktype(radeon_connector);
 	if (sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
-		radeon_dp_getdpcp(radeon_connector);
+		radeon_dp_getdpcd(radeon_connector);
 		ret = connector_status_connected;
 	}
 	return ret;

drivers/gpu/drm/radeon/radeon_mode.h

@@ -335,7 +335,7 @@ struct radeon_connector_atom_dig {
 	bool linkb;
 	uint16_t uc_i2c_id;
 	struct radeon_i2c_chan *dp_i2c_bus;
-	u8 dpcp[8];
+	u8 dpcd[8];
 };
 
 struct radeon_connector {
@@ -362,7 +362,7 @@ struct radeon_framebuffer {
 };
 
 extern int radeon_dp_getsinktype(struct radeon_connector *radeon_connector);
-extern void radeon_dp_getdpcp(struct radeon_connector *connector);
+extern void radeon_dp_getdpcd(struct radeon_connector *connector);
 extern int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
 				uint8_t write_byte, uint8_t *read_byte);
 

include/drm/drm_dp_helper.h

@@ -43,7 +43,7 @@
 #define AUX_I2C_REPLY_MASK	(0x3 << 6)
 
 /* AUX CH addresses */
-#define DP_DPCP_REV 0x0
+#define DP_DPCD_REV 0x0
 
 #define	DP_LINK_BW_SET		0x100
 # define DP_LINK_BW_1_62		    0x06
@@ -132,6 +132,8 @@
 #define DP_ADJUST_PRE_EMPHASIS_LANE1_MASK   0xc0
 #define DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT  6
 
+#define DP_SET_POWER                        0x600
+
 #define MODE_I2C_START	1
 #define MODE_I2C_WRITE	2
 #define MODE_I2C_READ	4