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1* Spreadtrum SC9860 Pin Controller2 3Please refer to sprd,pinctrl.txt in this directory for common binding part4and usage.5 6Required properties:7- compatible: Must be "sprd,sc9860-pinctrl".8- reg: The register address of pin controller device.9- pins : An array of strings, each string containing the name of a pin.10 11Optional properties:12- function: A string containing the name of the function, values must be13 one of: "func1", "func2", "func3" and "func4".14- drive-strength: Drive strength in mA. Supported values: 2, 4, 6, 8, 10,15 12, 14, 16, 20, 21, 24, 25, 27, 29, 31 and 33.16- input-schmitt-disable: Enable schmitt-trigger mode.17- input-schmitt-enable: Disable schmitt-trigger mode.18- bias-disable: Disable pin bias.19- bias-pull-down: Pull down on pin.20- bias-pull-up: Pull up on pin. Supported values: 20000 for pull-up resistor21 is 20K and 4700 for pull-up resistor is 4.7K.22- input-enable: Enable pin input.23- input-disable: Enable pin output.24- output-high: Set the pin as an output level high.25- output-low: Set the pin as an output level low.26- sleep-hardware-state: Indicate these configs in this state are sleep related.27- sprd,control: Control values referring to databook for global control pins.28- sprd,sleep-mode: Choose the pin sleep mode, and supported values are:29 AP_SLEEP, PUBCP_SLEEP, TGLDSP_SLEEP and AGDSP_SLEEP.30 31Pin sleep mode definition:32enum pin_sleep_mode {33 AP_SLEEP = BIT(0),34 PUBCP_SLEEP = BIT(1),35 TGLDSP_SLEEP = BIT(2),36 AGDSP_SLEEP = BIT(3),37};38 39Example:40pin_controller: pinctrl@402a0000 {41 compatible = "sprd,sc9860-pinctrl";42 reg = <0x402a0000 0x10000>;43 44 grp1: sd0 {45 pins = "SC9860_VIO_SD2_IRTE", "SC9860_VIO_SD0_IRTE";46 sprd,control = <0x1>;47 };48 49 grp2: rfctl_33 {50 pins = "SC9860_RFCTL33";51 function = "func2";52 sprd,sleep-mode = <AP_SLEEP | PUBCP_SLEEP>;53 grp2_sleep_mode: rfctl_33_sleep {54 pins = "SC9860_RFCTL33";55 sleep-hardware-state;56 output-low;57 }58 };59 60 grp3: rfctl_misc_20 {61 pins = "SC9860_RFCTL20_MISC";62 drive-strength = <10>;63 bias-pull-up = <4700>;64 grp3_sleep_mode: rfctl_misc_sleep {65 pins = "SC9860_RFCTL20_MISC";66 sleep-hardware-state;67 bias-pull-up;68 }69 };70};71