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 And must contain either "qcom,spmi-mpp" or "qcom,ssbi-mpp"
25 if the device is on an spmi bus or an ssbi bus respectively.
29 Value type: <prop-encoded-array>
30 Definition: Register base of the MPP block and length.
34 Value type: <prop-encoded-array>
35 Definition: Must contain an array of encoded interrupt specifiers for
41 Definition: Mark the device node as a GPIO controller
46 Definition: Must be 2;
47 the first cell will be used to define MPP number and the
48 second denotes the flags for this MPP
50 Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
51 a general description of GPIO and interrupt bindings.
53 Please refer to pinctrl-bindings.txt in this directory for details of the
54 common pinctrl bindings used by client devices, including the meaning of the
55 phrase "pin configuration node".
57 The pin configuration nodes act as a container for an arbitrary number of
58 subnodes. Each of these subnodes represents some desired configuration for a
59 pin or a list of pins. This configuration can include the
60 mux function to select on those pin(s), and various pin configuration
61 parameters, as listed below.
65 The name of each subnode is not important; all subnodes should be enumerated
66 and processed purely based on their content.
68 Each subnode only affects those parameters that are explicitly listed. In
69 other words, a subnode that lists a mux function but no pin configuration
70 parameters implies no information about any pin configuration parameters.
71 Similarly, a pin subnode that describes a pullup parameter implies no
72 information about e.g. the mux function.
74 The following generic properties as defined in pinctrl-bindings.txt are valid
75 to specify in a pin configuration subnode:
79 Value type: <string-array>
80 Definition: List of MPP pins affected by the properties specified in
81 this subnode. Valid pins are:
92 Definition: Specify the alternative function to be configured for the
93 specified pins. Valid values are:
101 Definition: The specified pins should be configured as no pull.
106 Definition: The specified pins should be configured as pull up.
107 Valid values are 600, 10000 and 30000 in bidirectional mode
108 only, i.e. when operating in qcom,analog-mode and input and
109 outputs are enabled. The hardware ignores the configuration
110 when operating in other modes.
112 - bias-high-impedance:
115 Definition: The specified pins will put in high-Z mode and disabled.
120 Definition: The specified pins are put in input mode, i.e. their input
126 Definition: The specified pins are configured in output mode, driven
132 Definition: The specified pins are configured in output mode, driven
138 Definition: Selects the power source for the specified pins. Valid power
139 sources are defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
144 Definition: Selects the source for analog output. Valued values are
145 defined in <dt-binding/pinctrl/qcom,pmic-mpp.h>
151 Definition: Selects which dtest rail to be routed in the various functions.
157 Definition: Selects the source for analog input. Valid values are
158 defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
159 PMIC_MPP_AMUX_ROUTE_CH5, PMIC_MPP_AMUX_ROUTE_CH6...
163 Definition: Indicates that the pin should be operating in paired mode.
168 compatible = "qcom,pm8841-mpp", "qcom,spmi-mpp";
172 interrupts = <4 0xa0 0 0>, <4 0xa1 0 0>, <4 0xa2 0 0>, <4 0xa3 0 0>;
174 pinctrl-names = "default";
175 pinctrl-0 = <&pm8841_default>;
177 pm8841_default: default {
179 pins = "mpp1", "mpp2", "mpp3", "mpp4";
180 function = "digital";
182 power-source = <PM8841_MPP_S3>;