0001 * Toshiba TC3589x multi-purpose expander
0002
0003 The Toshiba TC3589x series are I2C-based MFD devices which may expose the
0004 following built-in devices: gpio, keypad, rotator (vibrator), PWM (for
0005 e.g. LEDs or vibrators) The included models are:
0006
0007 - TC35890
0008 - TC35892
0009 - TC35893
0010 - TC35894
0011 - TC35895
0012 - TC35896
0013
0014 Required properties:
0015 - compatible : must be "toshiba,tc35890", "toshiba,tc35892", "toshiba,tc35893",
0016 "toshiba,tc35894", "toshiba,tc35895" or "toshiba,tc35896"
0017 - reg : I2C address of the device
0018 - interrupts : the interrupt on the parent the controller is connected to
0019 - interrupt-controller : marks the device node as an interrupt controller
0020 - #interrupt-cells : should be <1>, the first cell is the IRQ offset on this
0021 TC3589x interrupt controller.
0022
0023 Optional nodes:
0024
0025 - GPIO
0026 This GPIO module inside the TC3589x has 24 (TC35890, TC35892) or 20
0027 (other models) GPIO lines.
0028 - compatible : must be "toshiba,tc3589x-gpio"
0029 - interrupts : interrupt on the parent, which must be the tc3589x MFD device
0030 - interrupt-controller : marks the device node as an interrupt controller
0031 - #interrupt-cells : should be <2>, the first cell is the IRQ offset on this
0032 TC3589x GPIO interrupt controller, the second cell is the interrupt flags
0033 in accordance with <dt-bindings/interrupt-controller/irq.h>. The following
0034 flags are valid:
0035 - IRQ_TYPE_LEVEL_LOW
0036 - IRQ_TYPE_LEVEL_HIGH
0037 - IRQ_TYPE_EDGE_RISING
0038 - IRQ_TYPE_EDGE_FALLING
0039 - IRQ_TYPE_EDGE_BOTH
0040 - gpio-controller : marks the device node as a GPIO controller
0041 - #gpio-cells : should be <2>, the first cell is the GPIO offset on this
0042 GPIO controller, the second cell is the flags.
0043
0044 - Keypad
0045 This keypad is the same on all variants, supporting up to 96 different
0046 keys. The linux-specific properties are modeled on those already existing
0047 in other input drivers.
0048 - compatible : must be "toshiba,tc3589x-keypad"
0049 - debounce-delay-ms : debounce interval in milliseconds
0050 - keypad,num-rows : number of rows in the matrix, see
0051 bindings/input/matrix-keymap.txt
0052 - keypad,num-columns : number of columns in the matrix, see
0053 bindings/input/matrix-keymap.txt
0054 - linux,keymap: the definition can be found in
0055 bindings/input/matrix-keymap.txt
0056 - linux,no-autorepeat: do no enable autorepeat feature.
0057 - wakeup-source: use any event on keypad as wakeup event.
0058 (Legacy property supported: "linux,wakeup")
0059
0060 Example:
0061
0062 tc35893@44 {
0063 compatible = "toshiba,tc35893";
0064 reg = <0x44>;
0065 interrupt-parent = <&gpio6>;
0066 interrupts = <26 IRQ_TYPE_EDGE_RISING>;
0067
0068 interrupt-controller;
0069 #interrupt-cells = <1>;
0070
0071 tc3589x_gpio {
0072 compatible = "toshiba,tc3589x-gpio";
0073 interrupts = <0>;
0074
0075 interrupt-controller;
0076 #interrupt-cells = <2>;
0077 gpio-controller;
0078 #gpio-cells = <2>;
0079 };
0080 tc3589x_keypad {
0081 compatible = "toshiba,tc3589x-keypad";
0082 interrupts = <6>;
0083 debounce-delay-ms = <4>;
0084 keypad,num-columns = <8>;
0085 keypad,num-rows = <8>;
0086 linux,no-autorepeat;
0087 linux,keymap = <0x0301006b
0088 0x04010066
0089 0x06040072
0090 0x040200d7
0091 0x0303006a
0092 0x0205000e
0093 0x0607008b
0094 0x0500001c
0095 0x0403000b
0096 0x03040034
0097 0x05020067
0098 0x0305006c
0099 0x040500e7
0100 0x0005009e
0101 0x06020073
0102 0x01030039
0103 0x07060069
0104 0x050500d9>;
0105 wakeup-source;
0106 };
0107 };
