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Date: Sun, 21 Nov 2021 19:07:58 +0100
From: Janne Grunau <j@...nau.net>
To: Hector Martin <marcan@...can.st>, Sven Peter <sven@...npeter.dev>,
Alyssa Rosenzweig <alyssa@...enzweig.io>,
Rob Herring <robh+dt@...nel.org>
Cc: Mark Kettenis <kettenis@...nbsd.org>,
linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] arm64: dts: apple: t8103: Add i2c and cd321x nodes
i2c0, i2c1 and i2c3 are used on all M1 devices, i2c2 is only used on
the 2020 Mac Mini and 13-inch MacBook Pro. All devices have identical
i2c addresses for the cd321x' and use the same i2c bus.
Signed-off-by: Janne Grunau <j@...nau.net>
---
arch/arm64/boot/dts/apple/t8103-j274.dts | 4 ++
arch/arm64/boot/dts/apple/t8103-j293.dts | 4 ++
arch/arm64/boot/dts/apple/t8103-jxxx.dtsi | 18 ++++++
arch/arm64/boot/dts/apple/t8103.dtsi | 73 +++++++++++++++++++++++
4 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..a3b084d50da3 100644
--- a/arch/arm64/boot/dts/apple/t8103-j293.dts
+++ b/arch/arm64/boot/dts/apple/t8103-j293.dts
@@ -31,3 +31,7 @@ &pcie0_dart_2 {
/delete-node/ &port01;
/delete-node/ &port02;
+
+&i2c2 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi b/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi
index 53d22b434d76..5f748f3f60d2 100644
--- a/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi
@@ -39,6 +39,24 @@ &serial0 {
status = "okay";
};
+&i2c0 {
+ hpm0: tps6598x@38 {
+ compatible = "apple,cd321x";
+ reg = <0x38>;
+ interrupt-parent = <&pinctrl_ap>;
+ interrupts = <106 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-names = "irq";
+ };
+
+ hpm1: tps6598x@3f {
+ compatible = "apple,cd321x";
+ reg = <0x3f>;
+ interrupt-parent = <&pinctrl_ap>;
+ interrupts = <106 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-names = "irq";
+ };
+};
+
/*
* Force the bus number assignments so that we can declare some of the
* on-board devices and properties that are populated by the bootloader
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index c320c8baeb41..6c6dd988bd60 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -126,6 +126,59 @@ serial0: serial@...200000 {
status = "disabled";
};
+ i2c0: i2c@...010000 {
+ compatible = "apple,t8103-i2c", "apple,i2c";
+ reg = <0x2 0x35010000 0x0 0x4000>;
+ clocks = <&clk24>;
+ clock-names = "ref";
+ 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@...014000 {
+ compatible = "apple,t8103-i2c", "apple,i2c";
+ reg = <0x2 0x35014000 0x0 0x4000>;
+ clocks = <&clk24>;
+ clock-names = "ref";
+ 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@...018000 {
+ compatible = "apple,t8103-i2c", "apple,i2c";
+ reg = <0x2 0x35018000 0x0 0x4000>;
+ clocks = <&clk24>;
+ clock-names = "ref";
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 628 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@...01c000 {
+ compatible = "apple,t8103-i2c", "apple,i2c";
+ reg = <0x2 0x3501c000 0x0 0x4000>;
+ clocks = <&clk24>;
+ clock-names = "ref";
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 630 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-0 = <&i2c3_pins>;
+ pinctrl-names = "default";
+ #address-cells = <0x1>;
+ #size-cells = <0x0>;
+ };
+
aic: interrupt-controller@...100000 {
compatible = "apple,t8103-aic", "apple,aic";
#interrupt-cells = <3>;
@@ -153,6 +206,26 @@ pinctrl_ap: pinctrl@...100000 {
<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)>;
+ };
+
pcie_pins: pcie-pins {
pinmux = <APPLE_PINMUX(150, 1)>,
<APPLE_PINMUX(151, 1)>,
--
2.34.0
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