A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-13 16:16:15 -04:00
Code Issues Projects Releases Packages Wiki Activity

dt-bindings: usb: Add super speed re-driver bindings

Browse source 
Add bindings for super speed re-driver driver. This driver will
be used to boost USB Superspeed signals on QRD boards.

Change-Id: Ieae6a7b830ac6b3728228abee13fe5ed46e1e3cf
This commit is contained in:
Jack Pham 2020-01-29 18:57:40 -08:00 • committed by Gerrit - the friendly Code Review server
commit 074d6512aa
1 changed files with 53 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

53
bindings/usb/onsemi_redriver.txt Normal file
View file

@ -0,0 +1,53 @@
ON Semiconductor USB Type-C and display port 10Gbps Linear Re-Driver
Required properties:
- compatible: Must be "onnn,redriver".
- reg: I2C address on the selected bus.
- extcon: phandles to external connector devices. The first phandle
should point to the external connector which provides
both "USB" cable events and "USB-HOST" cable events.
An optional second phandle may be specified for DP
lane events.
Optional properties:
- eq: Equalization value of re-driver channel A/B/C/D, 8 bit.
eq[0] - eq[3]: Channel A-D parameter for USB.
eq[4] - eq[7]: Channel A-D parameter for DP.
- flat-gain: Flat gain control value of re-driver channel A/B/C/D, 8 bit.
flat_gain[0] - flat_gain[3]: Channel A-D parameter for USB.
flat_gain[4] - flat_gain[7]: Channel A-D parameter for DP.
- output-comp: Output compression value of re-driver channel A/B/C/D,
8 bit.
output_comp[0] - output_comp[3]: Channel A-D parameter for USB.
output_comp[4] - output_comp[7]: Channel A-D parameter for DP.
- loss-match: Loss profile matching control value of re-driver channel
A/B/C/D, 8 bit.
loss_match[0] - loss_match[3]: Channel A-D parameter for USB.
loss_match[4] - loss_match[7]: Channel A-D parameter for DP.
Example:
redriver@19 {
compatible = "onnn,redriver";
reg = <0x19>;
extcon = <&pm8150b_pdphy>, <&pm8150b_pdphy>;
eq = /bits/ 8 <
/* Parameters for USB */
0x4 0x4 0x4 0x4
/* Parameters for DP */
0x6 0x4 0x4 0x6>;
flat-gain = /bits/ 8 <
/* Parameters for USB */
0x3 0x1 0x1 0x3
/* Parameters for DP */
0x2 0x1 0x1 0x2>;
output-comp = /bits/ 8 <
/* Parameters for USB */
0x3 0x3 0x3 0x3
/* Parameters for DP */
0x3 0x3 0x3 0x3>;
loss-match = /bits/ 8 <
/* Parameters for USB */
0x1 0x3 0x3 0x1
/* Parameters for DP */
0x3 0x3 0x3 0x3>;
};