mirror of
https://github.com/torvalds/linux.git
synced 2024-11-19 18:41:48 +00:00
0762ddd73a
Update devicetree documention for lpc1850-scu with the new nxp,gpio-pin-interrupt property. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
72 lines
1.6 KiB
Plaintext
72 lines
1.6 KiB
Plaintext
NXP LPC18xx/43xx SCU pin controller Device Tree Bindings
|
|
--------------------------------------------------------
|
|
|
|
Required properties:
|
|
- compatible : Should be "nxp,lpc1850-scu"
|
|
- reg : Address and length of the register set for the device
|
|
- clocks : Clock specifier (see clock bindings for details)
|
|
|
|
The lpc1850-scu driver uses the generic pin multiplexing and generic pin
|
|
configuration documented in pinctrl-bindings.txt.
|
|
|
|
The following generic nodes are supported:
|
|
- function
|
|
- pins
|
|
- bias-disable
|
|
- bias-pull-up
|
|
- bias-pull-down
|
|
- drive-strength
|
|
- input-enable
|
|
- input-disable
|
|
- input-schmitt-enable
|
|
- input-schmitt-disable
|
|
- slew-rate
|
|
|
|
NXP specific properties:
|
|
- nxp,gpio-pin-interrupt : Assign pin to gpio pin interrupt controller
|
|
irq number 0 to 7. See example below.
|
|
|
|
Not all pins support all properties so either refer to the NXP 1850/4350
|
|
user manual or the pin table in the pinctrl-lpc18xx driver for supported
|
|
pin properties.
|
|
|
|
Example:
|
|
pinctrl: pinctrl@40086000 {
|
|
compatible = "nxp,lpc1850-scu";
|
|
reg = <0x40086000 0x1000>;
|
|
clocks = <&ccu1 CLK_CPU_SCU>;
|
|
|
|
i2c0_pins: i2c0-pins {
|
|
i2c0_pins_cfg {
|
|
pins = "i2c0_scl", "i2c0_sda";
|
|
function = "i2c0";
|
|
input-enable;
|
|
};
|
|
};
|
|
|
|
uart0_pins: uart0-pins {
|
|
uart0_rx_cfg {
|
|
pins = "pf_11";
|
|
function = "uart0";
|
|
bias-disable;
|
|
input-enable;
|
|
};
|
|
|
|
uart0_tx_cfg {
|
|
pins = "pf_10";
|
|
function = "uart0";
|
|
bias-disable;
|
|
};
|
|
};
|
|
|
|
gpio_joystick_pins: gpio-joystick-pins {
|
|
gpio_joystick_1_cfg {
|
|
pins = "p9_0";
|
|
function = "gpio";
|
|
nxp,gpio-pin-interrupt = <0>;
|
|
input-enable;
|
|
bias-disable;
|
|
};
|
|
};
|
|
};
|