1* Spreadtrum SC9860 Pin Controller 2 3Please refer to sprd,pinctrl.txt in this directory for common binding part 4and 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 be 13 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 resistor 21 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