1 Qualcomm PMIC Multi-Purpose Pin (MPP) block
3 This binding describes the MPP block(s) found in the 8xxx series
4 of PMIC's from Qualcomm.
9 Definition: Should contain one of:
16 Value type: <prop-encoded-array>
17 Definition: Register base of the MPP block and length.
21 Value type: <prop-encoded-array>
22 Definition: Must contain an array of encoded interrupt specifiers for
28 Definition: Mark the device node as a GPIO controller
33 Definition: Must be 2;
34 the first cell will be used to define MPP number and the
35 second denotes the flags for this MPP
37 Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
38 a general description of GPIO and interrupt bindings.
40 Please refer to pinctrl-bindings.txt in this directory for details of the
41 common pinctrl bindings used by client devices, including the meaning of the
42 phrase "pin configuration node".
44 The pin configuration nodes act as a container for an arbitrary number of
45 subnodes. Each of these subnodes represents some desired configuration for a
46 pin or a list of pins. This configuration can include the
47 mux function to select on those pin(s), and various pin configuration
48 parameters, as listed below.
52 The name of each subnode is not important; all subnodes should be enumerated
53 and processed purely based on their content.
55 Each subnode only affects those parameters that are explicitly listed. In
56 other words, a subnode that lists a mux function but no pin configuration
57 parameters implies no information about any pin configuration parameters.
58 Similarly, a pin subnode that describes a pullup parameter implies no
59 information about e.g. the mux function.
61 The following generic properties as defined in pinctrl-bindings.txt are valid
62 to specify in a pin configuration subnode:
66 Value type: <string-array>
67 Definition: List of MPP pins affected by the properties specified in
68 this subnode. Valid pins are:
76 Definition: Specify the alternative function to be configured for the
77 specified pins. Valid values are:
88 Definition: The specified pins should be configured as no pull.
93 Definition: The specified pins should be configured as pull up.
94 Valid values are 600, 10000 and 30000 in bidirectional mode
95 only, i.e. when operating in qcom,analog-mode and input and
96 outputs are enabled. The hardware ignores the configuration
97 when operating in other modes.
99 - bias-high-impedance:
102 Definition: The specified pins will put in high-Z mode and disabled.
107 Definition: The specified pins are put in input mode, i.e. their input
113 Definition: The specified pins are configured in output mode, driven
119 Definition: The specified pins are configured in output mode, driven
125 Definition: Selects the power source for the specified pins. Valid power
126 sources are defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
131 Definition: Selects Analog mode of operation: combined with input-enable
132 and/or output-high, output-low MPP could operate as
133 Bidirectional Logic, Analog Input, Analog Output.
138 Definition: Selects the source for analog input. Valid values are
139 defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
140 PMIC_MPP_AMUX_ROUTE_CH5, PMIC_MPP_AMUX_ROUTE_CH6...
145 compatible = "qcom,pm8841-mpp";
149 interrupts = <4 0xa0 0 0>, <4 0xa1 0 0>, <4 0xa2 0 0>, <4 0xa3 0 0>;
151 pinctrl-names = "default";
152 pinctrl-0 = <&pm8841_default>;
154 pm8841_default: default {
156 pins = "mpp1", "mpp2", "mpp3", "mpp4";
159 power-source = <PM8841_MPP_S3>;