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:
22 Value type: <prop-encoded-array>
23 Definition: Register base of the MPP block and length.
27 Value type: <prop-encoded-array>
28 Definition: Must contain an array of encoded interrupt specifiers for
34 Definition: Mark the device node as a GPIO controller
39 Definition: Must be 2;
40 the first cell will be used to define MPP number and the
41 second denotes the flags for this MPP
43 Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
44 a general description of GPIO and interrupt bindings.
46 Please refer to pinctrl-bindings.txt in this directory for details of the
47 common pinctrl bindings used by client devices, including the meaning of the
48 phrase "pin configuration node".
50 The pin configuration nodes act as a container for an arbitrary number of
51 subnodes. Each of these subnodes represents some desired configuration for a
52 pin or a list of pins. This configuration can include the
53 mux function to select on those pin(s), and various pin configuration
54 parameters, as listed below.
58 The name of each subnode is not important; all subnodes should be enumerated
59 and processed purely based on their content.
61 Each subnode only affects those parameters that are explicitly listed. In
62 other words, a subnode that lists a mux function but no pin configuration
63 parameters implies no information about any pin configuration parameters.
64 Similarly, a pin subnode that describes a pullup parameter implies no
65 information about e.g. the mux function.
67 The following generic properties as defined in pinctrl-bindings.txt are valid
68 to specify in a pin configuration subnode:
72 Value type: <string-array>
73 Definition: List of MPP pins affected by the properties specified in
74 this subnode. Valid pins are:
83 Definition: Specify the alternative function to be configured for the
84 specified pins. Valid values are:
92 Definition: The specified pins should be configured as no pull.
97 Definition: The specified pins should be configured as pull up.
98 Valid values are 600, 10000 and 30000 in bidirectional mode
99 only, i.e. when operating in qcom,analog-mode and input and
100 outputs are enabled. The hardware ignores the configuration
101 when operating in other modes.
103 - bias-high-impedance:
106 Definition: The specified pins will put in high-Z mode and disabled.
111 Definition: The specified pins are put in input mode, i.e. their input
117 Definition: The specified pins are configured in output mode, driven
123 Definition: The specified pins are configured in output mode, driven
129 Definition: Selects the power source for the specified pins. Valid power
130 sources are defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
135 Definition: Selects the source for analog output. Valued values are
136 defined in <dt-binding/pinctrl/qcom,pmic-mpp.h>
142 Definition: Selects which dtest rail to be routed in the various functions.
148 Definition: Selects the source for analog input. Valid values are
149 defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
150 PMIC_MPP_AMUX_ROUTE_CH5, PMIC_MPP_AMUX_ROUTE_CH6...
154 Definition: Indicates that the pin should be operating in paired mode.
159 compatible = "qcom,pm8841-mpp";
163 interrupts = <4 0xa0 0 0>, <4 0xa1 0 0>, <4 0xa2 0 0>, <4 0xa3 0 0>;
165 pinctrl-names = "default";
166 pinctrl-0 = <&pm8841_default>;
168 pm8841_default: default {
170 pins = "mpp1", "mpp2", "mpp3", "mpp4";
171 function = "digital";
173 power-source = <PM8841_MPP_S3>;