108 lines
3.2 KiB
Plaintext
108 lines
3.2 KiB
Plaintext
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* Toshiba TC3589x multi-purpose expander
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The Toshiba TC3589x series are I2C-based MFD devices which may expose the
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following built-in devices: gpio, keypad, rotator (vibrator), PWM (for
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e.g. LEDs or vibrators) The included models are:
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- TC35890
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- TC35892
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- TC35893
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- TC35894
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- TC35895
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- TC35896
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Required properties:
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- compatible : must be "toshiba,tc35890", "toshiba,tc35892", "toshiba,tc35893",
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"toshiba,tc35894", "toshiba,tc35895" or "toshiba,tc35896"
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- reg : I2C address of the device
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- interrupt-parent : specifies which IRQ controller we're connected to
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- interrupts : the interrupt on the parent the controller is connected to
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- interrupt-controller : marks the device node as an interrupt controller
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- #interrupt-cells : should be <1>, the first cell is the IRQ offset on this
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TC3589x interrupt controller.
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Optional nodes:
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- GPIO
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This GPIO module inside the TC3589x has 24 (TC35890, TC35892) or 20
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(other models) GPIO lines.
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- compatible : must be "toshiba,tc3589x-gpio"
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- interrupts : interrupt on the parent, which must be the tc3589x MFD device
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- interrupt-controller : marks the device node as an interrupt controller
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- #interrupt-cells : should be <2>, the first cell is the IRQ offset on this
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TC3589x GPIO interrupt controller, the second cell is the interrupt flags
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in accordance with <dt-bindings/interrupt-controller/irq.h>. The following
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flags are valid:
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- IRQ_TYPE_LEVEL_LOW
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- IRQ_TYPE_LEVEL_HIGH
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- IRQ_TYPE_EDGE_RISING
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- IRQ_TYPE_EDGE_FALLING
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- IRQ_TYPE_EDGE_BOTH
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- gpio-controller : marks the device node as a GPIO controller
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- #gpio-cells : should be <2>, the first cell is the GPIO offset on this
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GPIO controller, the second cell is the flags.
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- Keypad
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This keypad is the same on all variants, supporting up to 96 different
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keys. The linux-specific properties are modeled on those already existing
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in other input drivers.
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- compatible : must be "toshiba,tc3589x-keypad"
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- debounce-delay-ms : debounce interval in milliseconds
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- keypad,num-rows : number of rows in the matrix, see
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bindings/input/matrix-keymap.txt
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- keypad,num-columns : number of columns in the matrix, see
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bindings/input/matrix-keymap.txt
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- linux,keymap: the definition can be found in
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bindings/input/matrix-keymap.txt
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- linux,no-autorepeat: do no enable autorepeat feature.
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- linux,wakeup: use any event on keypad as wakeup event.
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Example:
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tc35893@44 {
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compatible = "toshiba,tc35893";
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reg = <0x44>;
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interrupt-parent = <&gpio6>;
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interrupts = <26 IRQ_TYPE_EDGE_RISING>;
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interrupt-controller;
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#interrupt-cells = <1>;
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tc3589x_gpio {
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compatible = "toshiba,tc3589x-gpio";
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interrupts = <0>;
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interrupt-controller;
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#interrupt-cells = <2>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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tc3589x_keypad {
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compatible = "toshiba,tc3589x-keypad";
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interrupts = <6>;
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debounce-delay-ms = <4>;
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keypad,num-columns = <8>;
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keypad,num-rows = <8>;
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linux,no-autorepeat;
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linux,wakeup;
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linux,keymap = <0x0301006b
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0x04010066
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0x06040072
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0x040200d7
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0x0303006a
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0x0205000e
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0x0607008b
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0x0500001c
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0x0403000b
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0x03040034
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0x05020067
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0x0305006c
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0x040500e7
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0x0005009e
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0x06020073
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0x01030039
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0x07060069
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0x050500d9>;
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};
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};
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