bindings/pinctrl/sprd%2Cpinctrl.txt

16 of them, so we can not make every Spreadtrum-special configuration
29 to configure the pin sleep mode, function select and sleep related
32 Now we have 4 systems for sleep mode on SC9860 SoC: AP system,
33 PUBCP system, TGLDSP system and AGDSP system. And the pin sleep
35 - input-enable
36 - input-disable
37 - output-high
38 - output-low
39 - bias-pull-up
40 - bias-pull-down
42 In some situation we need set the pin sleep mode and pin sleep related
43 configuration, to set the pin sleep related configuration automatically
44 by hardware when the system specified by sleep mode goes into deep
45 sleep mode. For example, if we set the pin sleep mode as PUBCP_SLEEP
46 and set the pin sleep related configuration as "input-enable", which
47 means when PUBCP system goes into deep sleep mode, this pin will be set
50 Moreover we can not use the "sleep" state, since some systems (like:
52 kernel on SC9860 platform), then we can not select "sleep" state
53 when the PUBCP system goes into deep sleep mode. Thus we introduce
54 "sprd,sleep-mode" property to set pin sleep mode.
62 - compatible: "sprd,<soc>-pinctrl"
63   Please refer to each sprd,<soc>-pinctrl.txt binding doc for supported SoCs.
64 - reg: The register address of pin controller device.
65 - pins : An array of pin names.
68 - function: Specified the function name.
69 - drive-strength: Drive strength in mA.
70 - input-schmitt-disable: Enable schmitt-trigger mode.
71 - input-schmitt-enable: Disable schmitt-trigger mode.
72 - bias-disable: Disable pin bias.
73 - bias-pull-down: Pull down on pin.
74 - bias-pull-up: Pull up on pin.
75 - input-enable: Enable pin input.
76 - input-disable: Enable pin output.
77 - output-high: Set the pin as an output level high.
78 - output-low: Set the pin as an output level low.
79 - sleep-hardware-state: Indicate these configs in this state are sleep related.
80 - sprd,control: Control values referring to databook for global control pins.
81 - sprd,sleep-mode: Sleep mode selection.
83 Please refer to each sprd,<soc>-pinctrl.txt binding doc for supported values.