stmpe.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 STMPE Touchscreen
    2 ----------------
    3 
    4 Required properties:
    5  - compatible: "st,stmpe-ts"
    6 
    7 Optional properties:
    8 - st,ave-ctrl           : Sample average control
    9                                 0 -> 1 sample
   10                                 1 -> 2 samples
   11                                 2 -> 4 samples
   12                                 3 -> 8 samples
   13 - st,touch-det-delay    : Touch detect interrupt delay (recommended is 3)
   14                                 0 -> 10 us
   15                                 1 -> 50 us
   16                                 2 -> 100 us
   17                                 3 -> 500 us
   18                                 4 -> 1 ms
   19                                 5 -> 5 ms
   20                                 6 -> 10 ms
   21                                 7 -> 50 ms
   22 - st,settling           : Panel driver settling time (recommended is 2)
   23                                 0 -> 10 us
   24                                 1 -> 100 us
   25                                 2 -> 500 us
   26                                 3 -> 1 ms
   27                                 4 -> 5 ms
   28                                 5 -> 10 ms
   29                                 6 -> 50 ms
   30                                 7 -> 100 ms
   31 - st,fraction-z         : Length of the fractional part in z (recommended is 7)
   32                           (fraction-z ([0..7]) = Count of the fractional part)
   33 - st,i-drive            : current limit value of the touchscreen drivers
   34                                 0 -> 20 mA (typical 35mA max)
   35                                 1 -> 50 mA (typical 80 mA max)
   36 
   37 Optional properties common with MFD (deprecated):
   38  - st,sample-time       : ADC conversion time in number of clock.
   39                                 0 -> 36 clocks
   40                                 1 -> 44 clocks
   41                                 2 -> 56 clocks
   42                                 3 -> 64 clocks
   43                                 4 -> 80 clocks (recommended)
   44                                 5 -> 96 clocks
   45                                 6 -> 124 clocks
   46  - st,mod-12b           : ADC Bit mode
   47                                 0 -> 10bit ADC
   48                                 1 -> 12bit ADC
   49  - st,ref-sel           : ADC reference source
   50                                 0 -> internal
   51                                 1 -> external
   52  - st,adc-freq          : ADC Clock speed
   53                                 0 -> 1.625 MHz
   54                                 1 -> 3.25 MHz
   55                                 2 || 3 -> 6.5 MHz
   56 
   57 Node name must be stmpe_touchscreen and should be child node of stmpe node to
   58 which it belongs.
   59 
   60 Note that common ADC settings of stmpe_touchscreen (child) will take precedence
   61 over the settings done in MFD.
   62 
   63 Example:
   64 
   65 stmpe811@41 {
   66         compatible = "st,stmpe811";
   67         pinctrl-names = "default";
   68         pinctrl-0 = <&pinctrl_touch_int>;
   69         #address-cells = <1>;
   70         #size-cells = <0>;
   71         reg = <0x41>;
   72         interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
   73         interrupt-parent = <&gpio4>;
   74         interrupt-controller;
   75         id = <0>;
   76         blocks = <0x5>;
   77         irq-trigger = <0x1>;
   78         /* Common ADC settings */
   79         /* 3.25 MHz ADC clock speed */
   80         st,adc-freq = <1>;
   81         /* 12-bit ADC */
   82         st,mod-12b = <1>;
   83         /* internal ADC reference */
   84         st,ref-sel = <0>;
   85         /* ADC converstion time: 80 clocks */
   86         st,sample-time = <4>;
   87 
   88         stmpe_touchscreen {
   89                 compatible = "st,stmpe-ts";
   90                 reg = <0>;
   91                 /* 8 sample average control */
   92                 st,ave-ctrl = <3>;
   93                 /* 5 ms touch detect interrupt delay */
   94                 st,touch-det-delay = <5>;
   95                 /* 1 ms panel driver settling time */
   96                 st,settling = <3>;
   97                 /* 7 length fractional part in z */
   98                 st,fraction-z = <7>;
   99                 /*
  100                  * 50 mA typical 80 mA max touchscreen drivers
  101                  * current limit value
  102                  */
  103                 st,i-drive = <1>;
  104         };
  105         stmpe_adc {
  106                 compatible = "st,stmpe-adc";
  107                 st,norequest-mask = <0x0F>;
  108         };
  109 };

Cache object: bebdd6be01a368f03f77b396e650f62d

[ 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/input/touchscreen/stmpe.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/input/touchscreen/stmpe.txt