1* Toshiba TC3589x multi-purpose expander
2
3The Toshiba TC3589x series are I2C-based MFD devices which may expose the
4following built-in devices: gpio, keypad, rotator (vibrator), PWM (for
5e.g. LEDs or vibrators) The included models are:
6
7- TC35890
8- TC35892
9- TC35893
10- TC35894
11- TC35895
12- TC35896
13
14Required properties:
15 - compatible : must be "toshiba,tc35890", "toshiba,tc35892", "toshiba,tc35893",
16   "toshiba,tc35894", "toshiba,tc35895" or "toshiba,tc35896"
17 - reg : I2C address of the device
18 - interrupts : the interrupt on the parent the controller is connected to
19 - interrupt-controller : marks the device node as an interrupt controller
20 - #interrupt-cells : should be <1>, the first cell is the IRQ offset on this
21   TC3589x interrupt controller.
22
23Optional nodes:
24
25- GPIO
26  This GPIO module inside the TC3589x has 24 (TC35890, TC35892) or 20
27  (other models) GPIO lines.
28 - compatible : must be "toshiba,tc3589x-gpio"
29 - interrupts : interrupt on the parent, which must be the tc3589x MFD device
30 - interrupt-controller : marks the device node as an interrupt controller
31 - #interrupt-cells : should be <2>, the first cell is the IRQ offset on this
32   TC3589x GPIO interrupt controller, the second cell is the interrupt flags
33   in accordance with <dt-bindings/interrupt-controller/irq.h>. The following
34   flags are valid:
35   - IRQ_TYPE_LEVEL_LOW
36   - IRQ_TYPE_LEVEL_HIGH
37   - IRQ_TYPE_EDGE_RISING
38   - IRQ_TYPE_EDGE_FALLING
39   - IRQ_TYPE_EDGE_BOTH
40 - gpio-controller : marks the device node as a GPIO controller
41 - #gpio-cells : should be <2>, the first cell is the GPIO offset on this
42   GPIO controller, the second cell is the flags.
43
44- Keypad
45  This keypad is the same on all variants, supporting up to 96 different
46  keys. The linux-specific properties are modeled on those already existing
47  in other input drivers.
48 - compatible : must be "toshiba,tc3589x-keypad"
49 - debounce-delay-ms : debounce interval in milliseconds
50 - keypad,num-rows : number of rows in the matrix, see
51   bindings/input/matrix-keymap.txt
52 - keypad,num-columns : number of columns in the matrix, see
53   bindings/input/matrix-keymap.txt
54 - linux,keymap: the definition can be found in
55   bindings/input/matrix-keymap.txt
56 - linux,no-autorepeat: do no enable autorepeat feature.
57 - wakeup-source: use any event on keypad as wakeup event.
58		  (Legacy property supported: "linux,wakeup")
59
60Example:
61
62tc35893@44 {
63	compatible = "toshiba,tc35893";
64	reg = <0x44>;
65	interrupt-parent = <&gpio6>;
66	interrupts = <26 IRQ_TYPE_EDGE_RISING>;
67
68	interrupt-controller;
69	#interrupt-cells = <1>;
70
71	tc3589x_gpio {
72		compatible = "toshiba,tc3589x-gpio";
73		interrupts = <0>;
74
75		interrupt-controller;
76		#interrupt-cells = <2>;
77		gpio-controller;
78		#gpio-cells = <2>;
79	};
80	tc3589x_keypad {
81		compatible = "toshiba,tc3589x-keypad";
82		interrupts = <6>;
83		debounce-delay-ms = <4>;
84		keypad,num-columns = <8>;
85		keypad,num-rows = <8>;
86		linux,no-autorepeat;
87		linux,keymap = <0x0301006b
88				0x04010066
89				0x06040072
90				0x040200d7
91				0x0303006a
92				0x0205000e
93				0x0607008b
94				0x0500001c
95				0x0403000b
96				0x03040034
97				0x05020067
98				0x0305006c
99				0x040500e7
100				0x0005009e
101				0x06020073
102				0x01030039
103				0x07060069
104				0x050500d9>;
105		wakeup-source;
106	};
107};
108