[PATCH v4 3/4] arm64: dts: apple: t8103: Add i2c nodes
From: Janne Grunau <j@jannau.net>
Date: 2021-11-23 22:49:43
Also in:
linux-devicetree, lkml
Subsystem:
arm/apple machine support, the rest · Maintainers:
Sven Peter, Janne Grunau, Linus Torvalds
Apple M1 has at least 5 i2c controllers. i2c0, i2c1 and i2c3 are used on all M1 Mac devices. The 2020 Mac Mini uses i2c2 and the 13-inch MacBook Pro uses i2c2 and i2c4. Signed-off-by: Janne Grunau <j@jannau.net> Reviewed-by: Sven Peter <redacted> Acked-by: Hector Martin <redacted> --- - fixed node order by address in t8103.dtsi - removed clock-names property from i2c nodes - added Reviewed-by and Acked-by tags arch/arm64/boot/dts/apple/t8103-j274.dts | 4 ++ arch/arm64/boot/dts/apple/t8103-j293.dts | 8 +++ arch/arm64/boot/dts/apple/t8103.dtsi | 87 ++++++++++++++++++++++++ 3 files changed, 99 insertions(+)
diff --git a/arch/arm64/boot/dts/apple/t8103-j274.dts b/arch/arm64/boot/dts/apple/t8103-j274.dts
index 9e01ef70039d..2cd429efba5b 100644
--- a/arch/arm64/boot/dts/apple/t8103-j274.dts
+++ b/arch/arm64/boot/dts/apple/t8103-j274.dts@@ -39,3 +39,7 @@ ethernet0: ethernet@0,0 { local-mac-address = [00 10 18 00 00 00]; }; }; + +&i2c2 { + status = "okay"; +};
diff --git a/arch/arm64/boot/dts/apple/t8103-j293.dts b/arch/arm64/boot/dts/apple/t8103-j293.dts
index 466035f00b69..49cdf4b560a3 100644
--- a/arch/arm64/boot/dts/apple/t8103-j293.dts
+++ b/arch/arm64/boot/dts/apple/t8103-j293.dts@@ -31,3 +31,11 @@ &pcie0_dart_2 { /delete-node/ &port01; /delete-node/ &port02; + +&i2c2 { + status = "okay"; +}; + +&i2c4 { + status = "okay"; +};
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index c320c8baeb41..c62d9082c6a3 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi@@ -111,6 +111,68 @@ soc { ranges; nonposted-mmio; + i2c0: i2c@235010000 { + compatible = "apple,t8103-i2c", "apple,i2c"; + reg = <0x2 0x35010000 0x0 0x4000>; + clocks = <&clk24>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 627 IRQ_TYPE_LEVEL_HIGH>; + pinctrl-0 = <&i2c0_pins>; + pinctrl-names = "default"; + #address-cells = <0x1>; + #size-cells = <0x0>; + }; + + i2c1: i2c@235014000 { + compatible = "apple,t8103-i2c", "apple,i2c"; + reg = <0x2 0x35014000 0x0 0x4000>; + clocks = <&clk24>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 628 IRQ_TYPE_LEVEL_HIGH>; + pinctrl-0 = <&i2c1_pins>; + pinctrl-names = "default"; + #address-cells = <0x1>; + #size-cells = <0x0>; + }; + + i2c2: i2c@235018000 { + compatible = "apple,t8103-i2c", "apple,i2c"; + reg = <0x2 0x35018000 0x0 0x4000>; + clocks = <&clk24>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 629 IRQ_TYPE_LEVEL_HIGH>; + pinctrl-0 = <&i2c2_pins>; + pinctrl-names = "default"; + #address-cells = <0x1>; + #size-cells = <0x0>; + status = "disabled"; /* not used in all devices */ + }; + + i2c3: i2c@23501c000 { + compatible = "apple,t8103-i2c", "apple,i2c"; + reg = <0x2 0x3501c000 0x0 0x4000>; + clocks = <&clk24>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 630 IRQ_TYPE_LEVEL_HIGH>; + pinctrl-0 = <&i2c3_pins>; + pinctrl-names = "default"; + #address-cells = <0x1>; + #size-cells = <0x0>; + }; + + i2c4: i2c@235020000 { + compatible = "apple,t8103-i2c", "apple,i2c"; + reg = <0x2 0x35020000 0x0 0x4000>; + clocks = <&clk24>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 631 IRQ_TYPE_LEVEL_HIGH>; + pinctrl-0 = <&i2c4_pins>; + pinctrl-names = "default"; + #address-cells = <0x1>; + #size-cells = <0x0>; + status = "disabled"; /* only used in J293 */ + }; + serial0: serial@235200000 { compatible = "apple,s5l-uart"; reg = <0x2 0x35200000 0x0 0x1000>;
@@ -153,6 +215,31 @@ pinctrl_ap: pinctrl@23c100000 { <AIC_IRQ 195 IRQ_TYPE_LEVEL_HIGH>, <AIC_IRQ 196 IRQ_TYPE_LEVEL_HIGH>; + i2c0_pins: i2c0-pins { + pinmux = <APPLE_PINMUX(192, 1)>, + <APPLE_PINMUX(188, 1)>; + }; + + i2c1_pins: i2c1-pins { + pinmux = <APPLE_PINMUX(201, 1)>, + <APPLE_PINMUX(199, 1)>; + }; + + i2c2_pins: i2c2-pins { + pinmux = <APPLE_PINMUX(163, 1)>, + <APPLE_PINMUX(162, 1)>; + }; + + i2c3_pins: i2c3-pins { + pinmux = <APPLE_PINMUX(73, 1)>, + <APPLE_PINMUX(72, 1)>; + }; + + i2c4_pins: i2c4-pins { + pinmux = <APPLE_PINMUX(135, 1)>, + <APPLE_PINMUX(134, 1)>; + }; + pcie_pins: pcie-pins { pinmux = <APPLE_PINMUX(150, 1)>, <APPLE_PINMUX(151, 1)>,
--
2.34.0
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