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 - interrupt-parent : specifies which IRQ controller we're connected to
19 - interrupts : the interrupt on the parent the controller is connected to
20 - interrupt-controller : marks the device node as an interrupt controller
21 - #interrupt-cells : should be <1>, the first cell is the IRQ offset on this
22   TC3589x interrupt controller.
23
24Optional nodes:
25
26- GPIO
27  This GPIO module inside the TC3589x has 24 (TC35890, TC35892) or 20
28  (other models) GPIO lines.
29 - compatible : must be "toshiba,tc3589x-gpio"
30 - interrupts : interrupt on the parent, which must be the tc3589x MFD device
31 - interrupt-controller : marks the device node as an interrupt controller
32 - #interrupt-cells : should be <2>, the first cell is the IRQ offset on this
33   TC3589x GPIO interrupt controller, the second cell is the interrupt flags
34   in accordance with <dt-bindings/interrupt-controller/irq.h>. The following
35   flags are valid:
36   - IRQ_TYPE_LEVEL_LOW
37   - IRQ_TYPE_LEVEL_HIGH
38   - IRQ_TYPE_EDGE_RISING
39   - IRQ_TYPE_EDGE_FALLING
40   - IRQ_TYPE_EDGE_BOTH
41 - gpio-controller : marks the device node as a GPIO controller
42 - #gpio-cells : should be <2>, the first cell is the GPIO offset on this
43   GPIO controller, the second cell is the flags.
44
45- Keypad
46  This keypad is the same on all variants, supporting up to 96 different
47  keys. The linux-specific properties are modeled on those already existing
48  in other input drivers.
49 - compatible : must be "toshiba,tc3589x-keypad"
50 - debounce-delay-ms : debounce interval in milliseconds
51 - keypad,num-rows : number of rows in the matrix, see
52   bindings/input/matrix-keymap.txt
53 - keypad,num-columns : number of columns in the matrix, see
54   bindings/input/matrix-keymap.txt
55 - linux,keymap: the definition can be found in
56   bindings/input/matrix-keymap.txt
57 - linux,no-autorepeat: do no enable autorepeat feature.
58 - wakeup-source: use any event on keypad as wakeup event.
59		  (Legacy property supported: "linux,wakeup")
60
61Example:
62
63tc35893@44 {
64	compatible = "toshiba,tc35893";
65	reg = <0x44>;
66	interrupt-parent = <&gpio6>;
67	interrupts = <26 IRQ_TYPE_EDGE_RISING>;
68
69	interrupt-controller;
70	#interrupt-cells = <1>;
71
72	tc3589x_gpio {
73		compatible = "toshiba,tc3589x-gpio";
74		interrupts = <0>;
75
76		interrupt-controller;
77		#interrupt-cells = <2>;
78		gpio-controller;
79		#gpio-cells = <2>;
80	};
81	tc3589x_keypad {
82		compatible = "toshiba,tc3589x-keypad";
83		interrupts = <6>;
84		debounce-delay-ms = <4>;
85		keypad,num-columns = <8>;
86		keypad,num-rows = <8>;
87		linux,no-autorepeat;
88		linux,keymap = <0x0301006b
89				0x04010066
90				0x06040072
91				0x040200d7
92				0x0303006a
93				0x0205000e
94				0x0607008b
95				0x0500001c
96				0x0403000b
97				0x03040034
98				0x05020067
99				0x0305006c
100				0x040500e7
101				0x0005009e
102				0x06020073
103				0x01030039
104				0x07060069
105				0x050500d9>;
106		wakeup-source;
107	};
108};
109