Hi, On Thu, Mar 16, 2017 at 08:51:52PM -0700, Tony Lindgren wrote: > Some Motorola phones like droid 4 use a custom CPCAP PMIC that has a > multiplexing USB PHY. > > This USB PHY can operate at least in four modes using pin multiplexing > and two control GPIOS: > > - Pass through companion PHY for the SoC USB PHY > - ULPI PHY for the SoC > - Pass through USB for the modem > - UART debug console for the SoC > > This patch adds support for droid 4 USB PHY and debug UART modes, > support for other modes can be added later on as needed. > > Both peripheral and host mode are working for the USB. The > host mode depends on the cpcap-charger driver for VBUS. > > VBUS and ID pin detection are done using cpcap-adc IIO ADC > driver. I tested UART, USB slave (cdc-ether) & USB host (keyboard & touchpad from Atrix lapdock) mode with Droid 4: Tested-by: Sebastian Reichel <sre@xxxxxxxxxx> -- Sebastian
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