Oh and it is 4 lanes actually 
```
jglathe@volterra:~$ sudo cat /sys/kernel/debug/dri/ae01000.display-controller/DP-3/dp_debug
	name = msm_dp
	drm_dp_link
		rate = 540000
		num_lanes = 4
		capabilities = 1
	dp_panel_info:
		active = 2560x1440
		back_porch = 80x33
		front_porch = 48x3
		sync_width = 32x5
		active_low = 0x0
		h_skew = 0
		refresh rate = 60
		pixel clock khz = 241500
		bpp = 30
	dp_link:
		test_requested = 128
		num_lanes = 4
		bw_code = 20
		lclk = 540000000
		v_level = 2
		p_level = 0

```