mirror of
https://github.com/torvalds/linux.git
synced 2024-12-30 23:02:08 +00:00
6d6ce40f63
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. Cc: devicetree@vger.kernel.org Cc: Marcel Partap <mpartap@gmx.net> Cc: Michael Scott <michael.scott@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Tested-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
41 lines
1.3 KiB
Plaintext
41 lines
1.3 KiB
Plaintext
Motorola CPCAP PMIC USB PHY binding
|
|
|
|
Required properties:
|
|
compatible: Shall be either "motorola,cpcap-usb-phy" or
|
|
"motorola,mapphone-cpcap-usb-phy"
|
|
#phy-cells: Shall be 0
|
|
interrupts: CPCAP PMIC interrupts used by the USB PHY
|
|
interrupt-names: Interrupt names
|
|
io-channels: IIO ADC channels used by the USB PHY
|
|
io-channel-names: IIO ADC channel names
|
|
vusb-supply: Regulator for the PHY
|
|
|
|
Optional properties:
|
|
pinctrl: Optional alternate pin modes for the PHY
|
|
pinctrl-names: Names for optional pin modes
|
|
mode-gpios: Optional GPIOs for configuring alternate modes
|
|
|
|
Example:
|
|
cpcap_usb2_phy: phy {
|
|
compatible = "motorola,mapphone-cpcap-usb-phy";
|
|
pinctrl-0 = <&usb_gpio_mux_sel1 &usb_gpio_mux_sel2>;
|
|
pinctrl-1 = <&usb_ulpi_pins>;
|
|
pinctrl-2 = <&usb_utmi_pins>;
|
|
pinctrl-3 = <&uart3_pins>;
|
|
pinctrl-names = "default", "ulpi", "utmi", "uart";
|
|
#phy-cells = <0>;
|
|
interrupts-extended = <
|
|
&cpcap 15 0 &cpcap 14 0 &cpcap 28 0 &cpcap 19 0
|
|
&cpcap 18 0 &cpcap 17 0 &cpcap 16 0 &cpcap 49 0
|
|
&cpcap 48 1
|
|
>;
|
|
interrupt-names =
|
|
"id_ground", "id_float", "se0conn", "vbusvld",
|
|
"sessvld", "sessend", "se1", "dm", "dp";
|
|
mode-gpios = <&gpio2 28 GPIO_ACTIVE_HIGH
|
|
&gpio1 0 GPIO_ACTIVE_HIGH>;
|
|
io-channels = <&cpcap_adc 2>, <&cpcap_adc 7>;
|
|
io-channel-names = "vbus", "id";
|
|
vusb-supply = <&vusb>;
|
|
};
|