From 226311814eda36c1ad693189e5402ced55e91f11 Mon Sep 17 00:00:00 2001 From: Janne Grunau Date: Fri, 26 Nov 2021 00:24:15 +0100 Subject: [PATCH 004/171] arm64: dts: apple: t8103: Add spi3/keyboard nodes Enables keyboard and touchpad input on MacBook Air (M1, 2020) and MacBook Pro (13-inch, M1, 2020). Signed-off-by: Janne Grunau --- arch/arm64/boot/dts/apple/t8103-j293.dts | 20 +++++++++++++++++ arch/arm64/boot/dts/apple/t8103-j313.dts | 20 +++++++++++++++++ arch/arm64/boot/dts/apple/t8103.dtsi | 28 ++++++++++++++++++++++++ 3 files changed, 68 insertions(+) diff --git a/arch/arm64/boot/dts/apple/t8103-j293.dts b/arch/arm64/boot/dts/apple/t8103-j293.dts index 6f08fd64f482..9405e97a85f2 100644 --- a/arch/arm64/boot/dts/apple/t8103-j293.dts +++ b/arch/arm64/boot/dts/apple/t8103-j293.dts @@ -29,6 +29,26 @@ &typec1 { label = "USB-C Left-front"; }; +&spi3 { + status = "okay"; + + hid-transport@0 { + compatible = "apple,spi-hid-transport"; + reg = <0>; + spi-max-frequency = <8000000>; + /* + * cs-setup and cs-hold delays are derived from Apple's ADT + * Mac OS driver meta data secify 45 us for 'cs to clock' and + * 'clock to cs' delays. + */ + spi-cs-setup-delay-ns = <20000>; + spi-cs-hold-delay-ns = <20000>; + spi-cs-inactive-delay-ns = <250000>; + spien-gpios = <&pinctrl_ap 195 0>; + interrupts-extended = <&pinctrl_nub 13 IRQ_TYPE_LEVEL_LOW>; + }; +}; + /* * Remove unused PCIe ports and disable the associated DARTs. */ diff --git a/arch/arm64/boot/dts/apple/t8103-j313.dts b/arch/arm64/boot/dts/apple/t8103-j313.dts index 114aa87c8cb4..bc84f8af0b1d 100644 --- a/arch/arm64/boot/dts/apple/t8103-j313.dts +++ b/arch/arm64/boot/dts/apple/t8103-j313.dts @@ -29,6 +29,26 @@ &typec1 { label = "USB-C Left-front"; }; +&spi3 { + status = "okay"; + + hid-transport@0 { + compatible = "apple,spi-hid-transport"; + reg = <0>; + spi-max-frequency = <8000000>; + /* + * cs-setup and cs-hold delays are derived from Apple's ADT + * Mac OS driver meta data secify 45 us for 'cs to clock' and + * 'clock to cs' delays. + */ + spi-cs-setup-delay-ns = <20000>; + spi-cs-hold-delay-ns = <20000>; + spi-cs-inactive-delay-ns = <250000>; + spien-gpios = <&pinctrl_ap 195 0>; + interrupts-extended = <&pinctrl_nub 13 IRQ_TYPE_LEVEL_LOW>; + }; +}; + /* * Remove unused PCIe ports and disable the associated DARTs. */ diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi index ec7234cdc861..9750438c30dd 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -290,6 +290,13 @@ clkref: clock-ref { clock-output-names = "clkref"; }; + clk_120m: clock-120m { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <120000000>; + clock-output-names = "clk_120m"; + }; + soc { compatible = "simple-bus"; #address-cells = <2>; @@ -374,6 +381,20 @@ i2c4: i2c@235020000 { status = "disabled"; /* only used in J293 */ }; + spi3: spi@23510c000 { + compatible = "apple,t8103-spi", "apple,spi"; + reg = <0x2 0x3510c000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = ; + clocks = <&clk_120m>; + pinctrl-0 = <&spi3_pins>; + pinctrl-names = "default"; + power-domains = <&ps_spi3>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; /* only used in J293/J313 */ + }; + serial0: serial@235200000 { compatible = "apple,s5l-uart"; reg = <0x2 0x35200000 0x0 0x1000>; @@ -475,6 +496,13 @@ i2c4_pins: i2c4-pins { ; }; + spi3_pins: spi3-pins { + pinmux = , + , + , + ; + }; + pcie_pins: pcie-pins { pinmux = , , -- 2.34.1