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:
24 Value type: <prop-encoded-array>
25 Definition: Register base of the MPP block and length.
29 Value type: <prop-encoded-array>
30 Definition: Must contain an array of encoded interrupt specifiers for
36 Definition: Mark the device node as a GPIO controller
41 Definition: Must be 2;
42 the first cell will be used to define MPP number and the
43 second denotes the flags for this MPP
45 Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
46 a general description of GPIO and interrupt bindings.
48 Please refer to pinctrl-bindings.txt in this directory for details of the
49 common pinctrl bindings used by client devices, including the meaning of the
50 phrase "pin configuration node".
52 The pin configuration nodes act as a container for an arbitrary number of
53 subnodes. Each of these subnodes represents some desired configuration for a
54 pin or a list of pins. This configuration can include the
55 mux function to select on those pin(s), and various pin configuration
56 parameters, as listed below.
60 The name of each subnode is not important; all subnodes should be enumerated
61 and processed purely based on their content.
63 Each subnode only affects those parameters that are explicitly listed. In
64 other words, a subnode that lists a mux function but no pin configuration
65 parameters implies no information about any pin configuration parameters.
66 Similarly, a pin subnode that describes a pullup parameter implies no
67 information about e.g. the mux function.
69 The following generic properties as defined in pinctrl-bindings.txt are valid
70 to specify in a pin configuration subnode:
74 Value type: <string-array>
75 Definition: List of MPP pins affected by the properties specified in
76 this subnode. Valid pins are:
85 Definition: Specify the alternative function to be configured for the
86 specified pins. Valid values are:
94 Definition: The specified pins should be configured as no pull.
99 Definition: The specified pins should be configured as pull up.
100 Valid values are 600, 10000 and 30000 in bidirectional mode
101 only, i.e. when operating in qcom,analog-mode and input and
102 outputs are enabled. The hardware ignores the configuration
103 when operating in other modes.
105 - bias-high-impedance:
108 Definition: The specified pins will put in high-Z mode and disabled.
113 Definition: The specified pins are put in input mode, i.e. their input
119 Definition: The specified pins are configured in output mode, driven
125 Definition: The specified pins are configured in output mode, driven
131 Definition: Selects the power source for the specified pins. Valid power
132 sources are defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
137 Definition: Selects the source for analog output. Valued values are
138 defined in <dt-binding/pinctrl/qcom,pmic-mpp.h>
144 Definition: Selects which dtest rail to be routed in the various functions.
150 Definition: Selects the source for analog input. Valid values are
151 defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
152 PMIC_MPP_AMUX_ROUTE_CH5, PMIC_MPP_AMUX_ROUTE_CH6...
156 Definition: Indicates that the pin should be operating in paired mode.
161 compatible = "qcom,pm8841-mpp";
165 interrupts = <4 0xa0 0 0>, <4 0xa1 0 0>, <4 0xa2 0 0>, <4 0xa3 0 0>;
167 pinctrl-names = "default";
168 pinctrl-0 = <&pm8841_default>;
170 pm8841_default: default {
172 pins = "mpp1", "mpp2", "mpp3", "mpp4";
173 function = "digital";
175 power-source = <PM8841_MPP_S3>;