Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt

   1 Qualcomm SPMI Regulators
   2
   3 - compatible:
   4         Usage: required
   5         Value type: <string>
   6         Definition: must be one of:
   7                         "qcom,pm8841-regulators"
   8                         "qcom,pm8916-regulators"
   9                         "qcom,pm8941-regulators"
  10                         "qcom,pm8994-regulators"
  11
  12 - interrupts:
  13         Usage: optional
  14         Value type: <prop-encoded-array>
  15         Definition: List of OCP interrupts.
  16
  17 - interrupt-names:
  18         Usage: required if 'interrupts' property present
  19         Value type: <string-array>
  20         Definition: List of strings defining the names of the
  21                     interrupts in the 'interrupts' property 1-to-1.
  22                     Supported values are "ocp-<regulator_name>", where
  23                     <regulator_name> corresponds to a voltage switch
  24                     type regulator.
  25
  26 - vdd_s1-supply:
  27 - vdd_s2-supply:
  28 - vdd_s3-supply:
  29 - vdd_s4-supply:
  30 - vdd_s5-supply:
  31 - vdd_s6-supply:
  32 - vdd_s7-supply:
  33 - vdd_s8-supply:
  34         Usage: optional (pm8841 only)
  35         Value type: <phandle>
  36         Definition: Reference to regulator supplying the input pin, as
  37                     described in the data sheet.
  38
  39 - vdd_s1-supply:
  40 - vdd_s2-supply:
  41 - vdd_s3-supply:
  42 - vdd_s4-supply:
  43 - vdd_l1_l3-supply:
  44 - vdd_l2-supply:
  45 - vdd_l4_l5_l6-supply:
  46 - vdd_l7-supply:
  47 - vdd_l8_l11_l14_l15_l16-supply:
  48 - vdd_l9_l10_l12_l13_l17_l18-supply:
  49         Usage: optional (pm8916 only)
  50         Value type: <phandle>
  51         Definition: Reference to regulator supplying the input pin, as
  52                     described in the data sheet.
  53
  54 - vdd_s1-supply:
  55 - vdd_s2-supply:
  56 - vdd_s3-supply:
  57 - vdd_l1_l3-supply:
  58 - vdd_l2_lvs_1_2_3-supply:
  59 - vdd_l4_l11-supply:
  60 - vdd_l5_l7-supply:
  61 - vdd_l6_l12_l14_l15-supply:
  62 - vdd_l8_l16_l18_19-supply:
  63 - vdd_l9_l10_l17_l22-supply:
  64 - vdd_l13_l20_l23_l24-supply:
  65 - vdd_l21-supply:
  66 - vin_5vs-supply:
  67         Usage: optional (pm8941 only)
  68         Value type: <phandle>
  69         Definition: Reference to regulator supplying the input pin, as
  70                     described in the data sheet.
  71
  72 - vdd_s1-supply:
  73 - vdd_s2-supply:
  74 - vdd_s3-supply:
  75 - vdd_s4-supply:
  76 - vdd_s5-supply:
  77 - vdd_s6-supply:
  78 - vdd_s7-supply:
  79 - vdd_s8-supply:
  80 - vdd_s9-supply:
  81 - vdd_s10-supply:
  82 - vdd_s11-supply:
  83 - vdd_s12-supply:
  84 - vdd_l1-supply:
  85 - vdd_l2_l26_l28-supply:
  86 - vdd_l3_l11-supply:
  87 - vdd_l4_l27_l31-supply:
  88 - vdd_l5_l7-supply:
  89 - vdd_l6_l12_l32-supply:
  90 - vdd_l8_l16_l30-supply:
  91 - vdd_l9_l10_l18_l22-supply:
  92 - vdd_l13_l19_l23_l24-supply:
  93 - vdd_l14_l15-supply:
  94 - vdd_l17_l29-supply:
  95 - vdd_l20_l21-supply:
  96 - vdd_l25-supply:
  97 - vdd_lvs_1_2-supply:
  98         Usage: optional (pm8994 only)
  99         Value type: <phandle>
 100         Definition: Reference to regulator supplying the input pin, as
 101                     described in the data sheet.
 102
 103
 104 The regulator node houses sub-nodes for each regulator within the device. Each
 105 sub-node is identified using the node's name, with valid values listed for each
 106 of the PMICs below.
 107
 108 pm8841:
 109         s1, s2, s3, s4, s5, s6, s7, s8
 110
 111 pm8916:
 112         s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
 113         l14, l15, l16, l17, l18
 114
 115 pm8941:
 116         s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
 117         l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2, lvs3,
 118         5vs1, 5vs2
 119
 120 pm8994:
 121         s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, l1, l2, l3, l4, l5,
 122         l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20,
 123         l21, l22, l23, l24, l25, l26, l27, l28, l29, l30, l31, l32, lvs1, lvs2
 124
 125 The content of each sub-node is defined by the standard binding for regulators -
 126 see regulator.txt - with additional custom properties described below:
 127
 128 - regulator-initial-mode:
 129         Usage: optional
 130         Value type: <u32>
 131         Description: 2 = Set initial mode to auto mode (automatically select
 132                     between HPM and LPM); not available on boost type
 133                     regulators.
 134
 135                     1 = Set initial mode to high power mode (HPM), also referred
 136                     to as NPM. HPM consumes more ground current than LPM, but
 137                     it can source significantly higher load current. HPM is not
 138                     available on boost type regulators. For voltage switch type
 139                     regulators, HPM implies that over current protection and
 140                     soft start are active all the time.
 141
 142                     0 = Set initial mode to low power mode (LPM).
 143
 144 - qcom,ocp-max-retries:
 145         Usage: optional
 146         Value type: <u32>
 147         Description: Maximum number of times to try toggling a voltage switch
 148                      off and back on as a result of consecutive over current
 149                      events.
 150
 151 - qcom,ocp-retry-delay:
 152         Usage: optional
 153         Value type: <u32>
 154         Description: Time to delay in milliseconds between each voltage switch
 155                      toggle after an over current event takes place.
 156
 157 - qcom,pin-ctrl-enable:
 158         Usage: optional
 159         Value type: <u32>
 160         Description: Bit mask specifying which hardware pins should be used to
 161                      enable the regulator, if any; supported bits are:
 162                         0 = ignore all hardware enable signals
 163                         BIT(0) = follow HW0_EN signal
 164                         BIT(1) = follow HW1_EN signal
 165                         BIT(2) = follow HW2_EN signal
 166                         BIT(3) = follow HW3_EN signal
 167
 168 - qcom,pin-ctrl-hpm:
 169         Usage: optional
 170         Value type: <u32>
 171         Description: Bit mask specifying which hardware pins should be used to
 172                      force the regulator into high power mode, if any;
 173                      supported bits are:
 174                         0 = ignore all hardware enable signals
 175                         BIT(0) = follow HW0_EN signal
 176                         BIT(1) = follow HW1_EN signal
 177                         BIT(2) = follow HW2_EN signal
 178                         BIT(3) = follow HW3_EN signal
 179                         BIT(4) = follow PMIC awake state
 180
 181 - qcom,vs-soft-start-strength:
 182         Usage: optional
 183         Value type: <u32>
 184         Description: This property sets the soft start strength for voltage
 185                      switch type regulators; supported values are:
 186                         0 = 0.05 uA
 187                         1 = 0.25 uA
 188                         2 = 0.55 uA
 189                         3 = 0.75 uA
 190
 191 Example:
 192
 193         regulators {
 194                 compatible = "qcom,pm8941-regulators";
 195                 vdd_l1_l3-supply = <&s1>;
 196
 197                 s1: s1 {
 198                         regulator-min-microvolt = <1300000>;
 199                         regulator-max-microvolt = <1400000>;
 200                 };
 201
 202                 ...
 203
 204                 l1: l1 {
 205                         regulator-min-microvolt = <1225000>;
 206                         regulator-max-microvolt = <1300000>;
 207                 };
 208
 209                 ....
 210         };