[PATCH 3/3] arm64: dts: apple: Add CIO reset controllers

[Sven Peter]

Add the reset controllers used to start the CIO (USB4/Thunderbolt)
blocks on t8103 and t600x. On t8103 each port comes with a dedicated
register page represented as a standalone node. On t600x a single
register shared by all ports of a die is located in the middle of the
PMGR MMIO region and represented as a sub-node of its syscon.

Signed-off-by: Sven Peter <sven at kernel.org>
---
 arch/arm64/boot/dts/apple/t600x-dieX.dtsi | 8 +++++++-
 arch/arm64/boot/dts/apple/t602x-dieX.dtsi | 8 +++++++-
 arch/arm64/boot/dts/apple/t8103.dtsi      | 6 ++++++
 arch/arm64/boot/dts/apple/t8112.dtsi      | 6 ++++++
 4 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/apple/t600x-dieX.dtsi b/arch/arm64/boot/dts/apple/t600x-dieX.dtsi
index 9676d5127039..5e163d756a7f 100644
--- a/arch/arm64/boot/dts/apple/t600x-dieX.dtsi
+++ b/arch/arm64/boot/dts/apple/t600x-dieX.dtsi
@@ -28,7 +28,13 @@ DIE_NODE(pmgr): power-management at 28e080000 {
 		compatible = "apple,t6000-pmgr", "apple,pmgr", "syscon", "simple-mfd";
 		#address-cells = <1>;
 		#size-cells = <1>;
-		reg = <0x2 0x8e080000 0 0x4000>;
+		reg = <0x2 0x8e080000 0 0x1c000>;
+
+		DIE_NODE(cio_reset): reset-controller at 1a034 {
+			compatible = "apple,t6000-cio-reset";
+			reg = <0x1a034 0x4>;
+			#reset-cells = <1>;
+		};
 	};
 
 	DIE_NODE(pmgr_east): power-management at 28e580000 {
diff --git a/arch/arm64/boot/dts/apple/t602x-dieX.dtsi b/arch/arm64/boot/dts/apple/t602x-dieX.dtsi
index ae3d535c5acb..fd4d572a04e7 100644
--- a/arch/arm64/boot/dts/apple/t602x-dieX.dtsi
+++ b/arch/arm64/boot/dts/apple/t602x-dieX.dtsi
@@ -27,7 +27,13 @@ DIE_NODE(pmgr): power-management at 28e080000 {
 		compatible = "apple,t6020-pmgr", "apple,t8103-pmgr", "syscon", "simple-mfd";
 		#address-cells = <1>;
 		#size-cells = <1>;
-		reg = <0x2 0x8e080000 0 0x8000>;
+		reg = <0x2 0x8e080000 0 0xc000>;
+
+		DIE_NODE(cio_reset): reset-controller at a02c {
+			compatible = "apple,t6020-cio-reset", "apple,t6000-cio-reset";
+			reg = <0xa02c 0x4>;
+			#reset-cells = <1>;
+		};
 	};
 
 	DIE_NODE(pmgr_south): power-management at 28e680000 {
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index da774096b667..83f6f1003424 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -730,6 +730,12 @@ pmgr: power-management at 23b700000 {
 			reg = <0x2 0x3b700000 0 0x14000>;
 		};
 
+		cio_reset: reset-controller at 23b784000 {
+			compatible = "apple,t8103-cio-reset";
+			reg = <0x2 0x3b784000 0x0 0x8000>;
+			#reset-cells = <1>;
+		};
+
 		pinctrl_ap: pinctrl at 23c100000 {
 			compatible = "apple,t8103-pinctrl", "apple,pinctrl";
 			reg = <0x2 0x3c100000 0x0 0x100000>;
diff --git a/arch/arm64/boot/dts/apple/t8112.dtsi b/arch/arm64/boot/dts/apple/t8112.dtsi
index 85c47422d4e8..d0637c0384b2 100644
--- a/arch/arm64/boot/dts/apple/t8112.dtsi
+++ b/arch/arm64/boot/dts/apple/t8112.dtsi
@@ -737,6 +737,12 @@ pmgr: power-management at 23b700000 {
 			/* child nodes are added in t8103-pmgr.dtsi */
 		};
 
+		cio_reset: reset-controller at 23b784000 {
+			compatible = "apple,t8112-cio-reset", "apple,t8103-cio-reset";
+			reg = <0x2 0x3b784000 0x0 0x8000>;
+			#reset-cells = <1>;
+		};
+
 		pinctrl_ap: pinctrl at 23c100000 {
 			compatible = "apple,t8112-pinctrl", "apple,pinctrl";
 			reg = <0x2 0x3c100000 0x0 0x100000>;

-- 
2.55.0