71 lines
2.1 KiB
Plaintext
71 lines
2.1 KiB
Plaintext
* Spreadtrum SC9860 Pin Controller
|
|
|
|
Please refer to sprd,pinctrl.txt in this directory for common binding part
|
|
and usage.
|
|
|
|
Required properties:
|
|
- compatible: Must be "sprd,sc9860-pinctrl".
|
|
- reg: The register address of pin controller device.
|
|
- pins : An array of strings, each string containing the name of a pin.
|
|
|
|
Optional properties:
|
|
- function: A string containing the name of the function, values must be
|
|
one of: "func1", "func2", "func3" and "func4".
|
|
- drive-strength: Drive strength in mA. Supported values: 2, 4, 6, 8, 10,
|
|
12, 14, 16, 20, 21, 24, 25, 27, 29, 31 and 33.
|
|
- input-schmitt-disable: Enable schmitt-trigger mode.
|
|
- input-schmitt-enable: Disable schmitt-trigger mode.
|
|
- bias-disable: Disable pin bias.
|
|
- bias-pull-down: Pull down on pin.
|
|
- bias-pull-up: Pull up on pin. Supported values: 20000 for pull-up resistor
|
|
is 20K and 4700 for pull-up resistor is 4.7K.
|
|
- input-enable: Enable pin input.
|
|
- input-disable: Enable pin output.
|
|
- output-high: Set the pin as an output level high.
|
|
- output-low: Set the pin as an output level low.
|
|
- sleep-hardware-state: Indicate these configs in this state are sleep related.
|
|
- sprd,control: Control values referring to databook for global control pins.
|
|
- sprd,sleep-mode: Choose the pin sleep mode, and supported values are:
|
|
AP_SLEEP, PUBCP_SLEEP, TGLDSP_SLEEP and AGDSP_SLEEP.
|
|
|
|
Pin sleep mode definition:
|
|
enum pin_sleep_mode {
|
|
AP_SLEEP = BIT(0),
|
|
PUBCP_SLEEP = BIT(1),
|
|
TGLDSP_SLEEP = BIT(2),
|
|
AGDSP_SLEEP = BIT(3),
|
|
};
|
|
|
|
Example:
|
|
pin_controller: pinctrl@402a0000 {
|
|
compatible = "sprd,sc9860-pinctrl";
|
|
reg = <0x402a0000 0x10000>;
|
|
|
|
grp1: sd0 {
|
|
pins = "SC9860_VIO_SD2_IRTE", "SC9860_VIO_SD0_IRTE";
|
|
sprd,control = <0x1>;
|
|
};
|
|
|
|
grp2: rfctl_33 {
|
|
pins = "SC9860_RFCTL33";
|
|
function = "func2";
|
|
sprd,sleep-mode = <AP_SLEEP | PUBCP_SLEEP>;
|
|
grp2_sleep_mode: rfctl_33_sleep {
|
|
pins = "SC9860_RFCTL33";
|
|
sleep-hardware-state;
|
|
output-low;
|
|
}
|
|
};
|
|
|
|
grp3: rfctl_misc_20 {
|
|
pins = "SC9860_RFCTL20_MISC";
|
|
drive-strength = <10>;
|
|
bias-pull-up = <4700>;
|
|
grp3_sleep_mode: rfctl_misc_sleep {
|
|
pins = "SC9860_RFCTL20_MISC";
|
|
sleep-hardware-state;
|
|
bias-pull-up;
|
|
}
|
|
};
|
|
};
|