qcom,pmic-mpp.txt

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    1 Qualcomm PMIC Multi-Purpose Pin (MPP) block
    2 
    3 This binding describes the MPP block(s) found in the 8xxx series
    4 of PMIC's from Qualcomm.
    5 
    6 - compatible:
    7         Usage: required
    8         Value type: <string>
    9         Definition: Should contain one of:
   10                     "qcom,pm8018-mpp",
   11                     "qcom,pm8019-mpp",
   12                     "qcom,pm8038-mpp",
   13                     "qcom,pm8058-mpp",
   14                     "qcom,pm8821-mpp",
   15                     "qcom,pm8841-mpp",
   16                     "qcom,pm8916-mpp",
   17                     "qcom,pm8917-mpp",
   18                     "qcom,pm8921-mpp",
   19                     "qcom,pm8941-mpp",
   20                     "qcom,pm8950-mpp",
   21                     "qcom,pmi8950-mpp",
   22                     "qcom,pm8994-mpp",
   23                     "qcom,pma8084-mpp",
   24                     "qcom,pmi8994-mpp",
   25 
   26                     And must contain either "qcom,spmi-mpp" or "qcom,ssbi-mpp"
   27                     if the device is on an spmi bus or an ssbi bus respectively.
   28 
   29 - reg:
   30         Usage: required
   31         Value type: <prop-encoded-array>
   32         Definition: Register base of the MPP block and length.
   33 
   34 - interrupts:
   35         Usage: required
   36         Value type: <prop-encoded-array>
   37         Definition: Must contain an array of encoded interrupt specifiers for
   38                     each available MPP
   39 
   40 - gpio-controller:
   41         Usage: required
   42         Value type: <none>
   43         Definition: Mark the device node as a GPIO controller
   44 
   45 - #gpio-cells:
   46         Usage: required
   47         Value type: <u32>
   48         Definition: Must be 2;
   49                     the first cell will be used to define MPP number and the
   50                     second denotes the flags for this MPP
   51 
   52 Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
   53 a general description of GPIO and interrupt bindings.
   54 
   55 Please refer to pinctrl-bindings.txt in this directory for details of the
   56 common pinctrl bindings used by client devices, including the meaning of the
   57 phrase "pin configuration node".
   58 
   59 The pin configuration nodes act as a container for an arbitrary number of
   60 subnodes. Each of these subnodes represents some desired configuration for a
   61 pin or a list of pins. This configuration can include the
   62 mux function to select on those pin(s), and various pin configuration
   63 parameters, as listed below.
   64 
   65 SUBNODES:
   66 
   67 The name of each subnode is not important; all subnodes should be enumerated
   68 and processed purely based on their content.
   69 
   70 Each subnode only affects those parameters that are explicitly listed. In
   71 other words, a subnode that lists a mux function but no pin configuration
   72 parameters implies no information about any pin configuration parameters.
   73 Similarly, a pin subnode that describes a pullup parameter implies no
   74 information about e.g. the mux function.
   75 
   76 The following generic properties as defined in pinctrl-bindings.txt are valid
   77 to specify in a pin configuration subnode:
   78 
   79 - pins:
   80         Usage: required
   81         Value type: <string-array>
   82         Definition: List of MPP pins affected by the properties specified in
   83                     this subnode.  Valid pins are:
   84                     mpp1-mpp4 for pm8841
   85                     mpp1-mpp4 for pm8916
   86                     mpp1-mpp8 for pm8941
   87                     mpp1-mpp4 for pm8950
   88                     mpp1-mpp4 for pmi8950
   89                     mpp1-mpp4 for pma8084
   90 
   91 - function:
   92         Usage: required
   93         Value type: <string>
   94         Definition: Specify the alternative function to be configured for the
   95                     specified pins.  Valid values are:
   96                     "digital",
   97                     "analog",
   98                     "sink"
   99 
  100 - bias-disable:
  101         Usage: optional
  102         Value type: <none>
  103         Definition: The specified pins should be configured as no pull.
  104 
  105 - bias-pull-up:
  106         Usage: optional
  107         Value type: <u32>
  108         Definition: The specified pins should be configured as pull up.
  109                     Valid values are 600, 10000 and 30000 in bidirectional mode
  110                     only, i.e. when operating in qcom,analog-mode and input and
  111                     outputs are enabled. The hardware ignores the configuration
  112                     when operating in other modes.
  113 
  114 - bias-high-impedance:
  115         Usage: optional
  116         Value type: <none>
  117         Definition: The specified pins will put in high-Z mode and disabled.
  118 
  119 - input-enable:
  120         Usage: optional
  121         Value type: <none>
  122         Definition: The specified pins are put in input mode, i.e. their input
  123                     buffer is enabled
  124 
  125 - output-high:
  126         Usage: optional
  127         Value type: <none>
  128         Definition: The specified pins are configured in output mode, driven
  129                     high.
  130 
  131 - output-low:
  132         Usage: optional
  133         Value type: <none>
  134         Definition: The specified pins are configured in output mode, driven
  135                     low.
  136 
  137 - power-source:
  138         Usage: optional
  139         Value type: <u32>
  140         Definition: Selects the power source for the specified pins. Valid power
  141                     sources are defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
  142 
  143 - qcom,analog-level:
  144         Usage: optional
  145         Value type: <u32>
  146         Definition: Selects the source for analog output. Valued values are
  147                     defined in <dt-binding/pinctrl/qcom,pmic-mpp.h>
  148                     PMIC_MPP_AOUT_LVL_*
  149 
  150 - qcom,dtest:
  151         Usage: optional
  152         Value type: <u32>
  153         Definition: Selects which dtest rail to be routed in the various functions.
  154                     Valid values are 1-4
  155 
  156 - qcom,amux-route:
  157         Usage: optional
  158         Value type: <u32>
  159         Definition: Selects the source for analog input. Valid values are
  160                     defined in <dt-bindings/pinctrl/qcom,pmic-mpp.h>
  161                     PMIC_MPP_AMUX_ROUTE_CH5, PMIC_MPP_AMUX_ROUTE_CH6...
  162 - qcom,paired:
  163         Usage: optional
  164         Value type: <none>
  165         Definition: Indicates that the pin should be operating in paired mode.
  166 
  167 Example:
  168 
  169         mpps@a000 {
  170                 compatible = "qcom,pm8841-mpp", "qcom,spmi-mpp";
  171                 reg = <0xa000>;
  172                 gpio-controller;
  173                 #gpio-cells = <2>;
  174                 interrupts = <4 0xa0 0 0>, <4 0xa1 0 0>, <4 0xa2 0 0>, <4 0xa3 0 0>;
  175 
  176                 pinctrl-names = "default";
  177                 pinctrl-0 = <&pm8841_default>;
  178 
  179                 pm8841_default: default {
  180                         gpio {
  181                                 pins = "mpp1", "mpp2", "mpp3", "mpp4";
  182                                 function = "digital";
  183                                 input-enable;
  184                                 power-source = <PM8841_MPP_S3>;
  185                         };
  186                 };
  187         };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/pinctrl/qcom,pmic-mpp.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/pinctrl/qcom,pmic-mpp.txt