leds-lp55xx.txt

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 Binding for TI/National Semiconductor LP55xx Led Drivers
    2 
    3 Required properties:
    4 - compatible: one of
    5         national,lp5521
    6         national,lp5523
    7         ti,lp55231
    8         ti,lp5562
    9         ti,lp8501
   10 
   11 - reg: I2C slave address
   12 - clock-mode: Input clock mode, (0: automode, 1: internal, 2: external)
   13 
   14 Each child has own specific current settings
   15 - led-cur: Current setting at each led channel (mA x10, 0 if led is not connected)
   16 - max-cur: Maximun current at each led channel.
   17 
   18 Optional properties:
   19 - enable-gpio: GPIO attached to the chip's enable pin
   20 - label: Used for naming LEDs
   21 - pwr-sel: LP8501 specific property. Power selection for output channels.
   22          0: D1~9 are connected to VDD
   23          1: D1~6 with VDD, D7~9 with VOUT
   24          2: D1~6 with VOUT, D7~9 with VDD
   25          3: D1~9 are connected to VOUT
   26 
   27 Alternatively, each child can have a specific channel name and trigger:
   28 - chan-name (optional): name of channel
   29 - linux,default-trigger (optional): see
   30   Documentation/devicetree/bindings/leds/common.txt
   31 
   32 example 1) LP5521
   33 3 LED channels, external clock used. Channel names are 'lp5521_pri:channel0',
   34 'lp5521_pri:channel1' and 'lp5521_pri:channel2', with a heartbeat trigger
   35 on channel 0.
   36 
   37 lp5521@32 {
   38         compatible = "national,lp5521";
   39         reg = <0x32>;
   40         label = "lp5521_pri";
   41         clock-mode = /bits/ 8 <2>;
   42 
   43         chan0 {
   44                 led-cur = /bits/ 8 <0x2f>;
   45                 max-cur = /bits/ 8 <0x5f>;
   46                 linux,default-trigger = "heartbeat";
   47         };
   48 
   49         chan1 {
   50                 led-cur = /bits/ 8 <0x2f>;
   51                 max-cur = /bits/ 8 <0x5f>;
   52         };
   53 
   54         chan2 {
   55                 led-cur = /bits/ 8 <0x2f>;
   56                 max-cur = /bits/ 8 <0x5f>;
   57         };
   58 };
   59 
   60 example 2) LP5523
   61 9 LED channels with specific name. Internal clock used.
   62 The I2C slave address is configurable with ASEL1 and ASEL0 pins.
   63 Available addresses are 32/33/34/35h.
   64 
   65 ASEL1    ASEL0    Address
   66 -------------------------
   67  GND      GND       32h
   68  GND      VEN       33h
   69  VEN      GND       34h
   70  VEN      VEN       35h
   71 
   72 lp5523@32 {
   73         compatible = "national,lp5523";
   74         reg = <0x32>;
   75         clock-mode = /bits/ 8 <1>;
   76 
   77         chan0 {
   78                 chan-name = "d1";
   79                 led-cur = /bits/ 8 <0x14>;
   80                 max-cur = /bits/ 8 <0x20>;
   81         };
   82 
   83         chan1 {
   84                 chan-name = "d2";
   85                 led-cur = /bits/ 8 <0x14>;
   86                 max-cur = /bits/ 8 <0x20>;
   87         };
   88 
   89         chan2 {
   90                 chan-name = "d3";
   91                 led-cur = /bits/ 8 <0x14>;
   92                 max-cur = /bits/ 8 <0x20>;
   93         };
   94 
   95         chan3 {
   96                 chan-name = "d4";
   97                 led-cur = /bits/ 8 <0x14>;
   98                 max-cur = /bits/ 8 <0x20>;
   99         };
  100 
  101         chan4 {
  102                 chan-name = "d5";
  103                 led-cur = /bits/ 8 <0x14>;
  104                 max-cur = /bits/ 8 <0x20>;
  105         };
  106 
  107         chan5 {
  108                 chan-name = "d6";
  109                 led-cur = /bits/ 8 <0x14>;
  110                 max-cur = /bits/ 8 <0x20>;
  111         };
  112 
  113         chan6 {
  114                 chan-name = "d7";
  115                 led-cur = /bits/ 8 <0x14>;
  116                 max-cur = /bits/ 8 <0x20>;
  117         };
  118 
  119         chan7 {
  120                 chan-name = "d8";
  121                 led-cur = /bits/ 8 <0x14>;
  122                 max-cur = /bits/ 8 <0x20>;
  123         };
  124 
  125         chan8 {
  126                 chan-name = "d9";
  127                 led-cur = /bits/ 8 <0x14>;
  128                 max-cur = /bits/ 8 <0x20>;
  129         };
  130 };
  131 
  132 example 3) LP5562
  133 4 channels are defined.
  134 
  135 lp5562@30 {
  136         compatible = "ti,lp5562";
  137         reg = <0x30>;
  138         clock-mode = /bits/8 <2>;
  139 
  140         chan0 {
  141                 chan-name = "R";
  142                 led-cur = /bits/ 8 <0x20>;
  143                 max-cur = /bits/ 8 <0x60>;
  144         };
  145 
  146         chan1 {
  147                 chan-name = "G";
  148                 led-cur = /bits/ 8 <0x20>;
  149                 max-cur = /bits/ 8 <0x60>;
  150         };
  151 
  152         chan2 {
  153                 chan-name = "B";
  154                 led-cur = /bits/ 8 <0x20>;
  155                 max-cur = /bits/ 8 <0x60>;
  156         };
  157 
  158         chan3 {
  159                 chan-name = "W";
  160                 led-cur = /bits/ 8 <0x20>;
  161                 max-cur = /bits/ 8 <0x60>;
  162         };
  163 };
  164 
  165 example 4) LP8501
  166 9 channels are defined. The 'pwr-sel' is LP8501 specific property.
  167 Others are same as LP5523.
  168 
  169 lp8501@32 {
  170         compatible = "ti,lp8501";
  171         reg = <0x32>;
  172         clock-mode = /bits/ 8 <2>;
  173         pwr-sel = /bits/ 8 <3>; /* D1~9 connected to VOUT */
  174 
  175         chan0 {
  176                 chan-name = "d1";
  177                 led-cur = /bits/ 8 <0x14>;
  178                 max-cur = /bits/ 8 <0x20>;
  179         };
  180 
  181         chan1 {
  182                 chan-name = "d2";
  183                 led-cur = /bits/ 8 <0x14>;
  184                 max-cur = /bits/ 8 <0x20>;
  185         };
  186 
  187         chan2 {
  188                 chan-name = "d3";
  189                 led-cur = /bits/ 8 <0x14>;
  190                 max-cur = /bits/ 8 <0x20>;
  191         };
  192 
  193         chan3 {
  194                 chan-name = "d4";
  195                 led-cur = /bits/ 8 <0x14>;
  196                 max-cur = /bits/ 8 <0x20>;
  197         };
  198 
  199         chan4 {
  200                 chan-name = "d5";
  201                 led-cur = /bits/ 8 <0x14>;
  202                 max-cur = /bits/ 8 <0x20>;
  203         };
  204 
  205         chan5 {
  206                 chan-name = "d6";
  207                 led-cur = /bits/ 8 <0x14>;
  208                 max-cur = /bits/ 8 <0x20>;
  209         };
  210 
  211         chan6 {
  212                 chan-name = "d7";
  213                 led-cur = /bits/ 8 <0x14>;
  214                 max-cur = /bits/ 8 <0x20>;
  215         };
  216 
  217         chan7 {
  218                 chan-name = "d8";
  219                 led-cur = /bits/ 8 <0x14>;
  220                 max-cur = /bits/ 8 <0x20>;
  221         };
  222 
  223         chan8 {
  224                 chan-name = "d9";
  225                 led-cur = /bits/ 8 <0x14>;
  226                 max-cur = /bits/ 8 <0x20>;
  227         };
  228 };

Cache object: 28181313baf9a71603810692e48e539e

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/leds/leds-lp55xx.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/leds/leds-lp55xx.txt