mirror of
https://github.com/torvalds/linux.git
synced 2024-12-18 09:02:17 +00:00
062589b139
This patch adds ST Keyscan driver to use the keypad hw a subset of ST boards provide. Specific board setup will be put in the given dt. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org> Signed-off-by: Giuseppe Condorelli <giuseppe.condorelli@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
61 lines
1.7 KiB
Plaintext
61 lines
1.7 KiB
Plaintext
* ST Keyscan controller Device Tree bindings
|
|
|
|
The ST keyscan controller Device Tree binding is based on the
|
|
matrix-keymap.
|
|
|
|
Required properties:
|
|
- compatible: "st,sti-keyscan"
|
|
|
|
- reg: Register base address and size of st-keyscan controller.
|
|
|
|
- interrupts: Interrupt number for the st-keyscan controller.
|
|
|
|
- clocks: Must contain one entry, for the module clock.
|
|
See ../clocks/clock-bindings.txt for details.
|
|
|
|
- pinctrl: Should specify pin control groups used for this controller.
|
|
See ../pinctrl/pinctrl-bindings.txt for details.
|
|
|
|
- linux,keymap: The keymap for keys as described in the binding document
|
|
devicetree/bindings/input/matrix-keymap.txt.
|
|
|
|
- keypad,num-rows: Number of row lines connected to the keypad controller.
|
|
|
|
- keypad,num-columns: Number of column lines connected to the keypad
|
|
controller.
|
|
|
|
Optional property:
|
|
- st,debounce_us: Debouncing interval time in microseconds
|
|
|
|
Example:
|
|
|
|
keyscan: keyscan@fe4b0000 {
|
|
compatible = "st,sti-keyscan";
|
|
reg = <0xfe4b0000 0x2000>;
|
|
interrupts = <GIC_SPI 212 IRQ_TYPE_NONE>;
|
|
clocks = <&CLK_SYSIN>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_keyscan>;
|
|
|
|
keypad,num-rows = <4>;
|
|
keypad,num-columns = <4>;
|
|
st,debounce_us = <5000>;
|
|
|
|
linux,keymap = < MATRIX_KEY(0x00, 0x00, KEY_F13)
|
|
MATRIX_KEY(0x00, 0x01, KEY_F9)
|
|
MATRIX_KEY(0x00, 0x02, KEY_F5)
|
|
MATRIX_KEY(0x00, 0x03, KEY_F1)
|
|
MATRIX_KEY(0x01, 0x00, KEY_F14)
|
|
MATRIX_KEY(0x01, 0x01, KEY_F10)
|
|
MATRIX_KEY(0x01, 0x02, KEY_F6)
|
|
MATRIX_KEY(0x01, 0x03, KEY_F2)
|
|
MATRIX_KEY(0x02, 0x00, KEY_F15)
|
|
MATRIX_KEY(0x02, 0x01, KEY_F11)
|
|
MATRIX_KEY(0x02, 0x02, KEY_F7)
|
|
MATRIX_KEY(0x02, 0x03, KEY_F3)
|
|
MATRIX_KEY(0x03, 0x00, KEY_F16)
|
|
MATRIX_KEY(0x03, 0x01, KEY_F12)
|
|
MATRIX_KEY(0x03, 0x02, KEY_F8)
|
|
MATRIX_KEY(0x03, 0x03, KEY_F4) >;
|
|
};
|