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arm64: dts: apple: t8112: Add spi controller nodes

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Apple silicon devices have one or more SPI devices. Add device tree
nodes for all known controllers. The missing ones could be guessed and
tested with a little effort but since the devices expose no pins and
no new devices are expected there is no point in spending the effort.
SPI is used for spi-nor and input devices like keyboard, trackpad,
touchscreen and fingerprint reader. Only the spi-nor flash has upstream
drivers. Support for it will be added in a following commit.

Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Janne Grunau <j@jannau.net>
Link: https://lore.kernel.org/r/20241203-asahi-spi-dt-v2-3-cd68bfaf0c84@jannau.net
Signed-off-by: Sven Peter <sven@svenpeter.dev>
This commit is contained in:
Janne Grunau 2024-12-03 08:57:59 +01:00 committed by Sven Peter
parent 556cd4bbb4
commit 0a6d561c7e
1 changed files with 43 additions and 1 deletions
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44
arch/arm64/boot/dts/apple/t8112.dtsi
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@ -349,6 +349,13 @@ clkref: clock-ref {
clock-output-names = "clkref";
};
clk_200m: clock-200m {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <200000000>;
clock-output-names = "clk_200m";
};
/*
* This is a fabulated representation of the input clock
* to NCO since we don't know the true clock tree.
@ -467,6 +474,34 @@ fpwm1: pwm@235044000 {
status = "disabled";
};
spi1: spi@235104000 {
compatible = "apple,t8112-spi", "apple,spi";
reg = <0x2 0x35104000 0x0 0x4000>;
interrupt-parent = <&aic>;
interrupts = <AIC_IRQ 749 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk_200m>;
pinctrl-0 = <&spi1_pins>;
pinctrl-names = "default";
power-domains = <&ps_spi1>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
};
spi3: spi@23510c000 {
compatible = "apple,t8112-spi", "apple,spi";
reg = <0x2 0x3510c000 0x0 0x4000>;
interrupt-parent = <&aic>;
interrupts = <AIC_IRQ 751 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clkref>;
pinctrl-0 = <&spi3_pins>;
pinctrl-names = "default";
power-domains = <&ps_spi3>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
};
serial0: serial@235200000 {
compatible = "apple,s5l-uart";
reg = <0x2 0x35200000 0x0 0x1000>;
@ -626,13 +661,20 @@ i2c4_pins: i2c4-pins {
<APPLE_PINMUX(130, 1)>;
};
spi3_pins: spi3-pins {
spi1_pins: spi1-pins {
pinmux = <APPLE_PINMUX(46, 1)>,
<APPLE_PINMUX(47, 1)>,
<APPLE_PINMUX(48, 1)>,
<APPLE_PINMUX(49, 1)>;
};
spi3_pins: spi3-pins {
pinmux = <APPLE_PINMUX(93, 1)>,
<APPLE_PINMUX(94, 1)>,
<APPLE_PINMUX(95, 1)>,
<APPLE_PINMUX(96, 1)>;
};
pcie_pins: pcie-pins {
pinmux = <APPLE_PINMUX(162, 1)>,
<APPLE_PINMUX(163, 1)>,