From: Michal Simek <michal.simek@amd.com>
Date: Tue, 2 May 2023 13:35:49 +0000 (+0200)
Subject: arm64: zynqmp: Enable AMS on SOM and other zcu10x boards
X-Git-Tag: v6.6.17~4534^2~15^2~13
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=255118de7689211b9d2f1e0da2dc63ef63ea3ff6;p=platform%2Fkernel%2Flinux-rpi.git

arm64: zynqmp: Enable AMS on SOM and other zcu10x boards

AMS is used for monitoring system. Used for measuring voltages and
especially temperatures. Origin interface is IIO but via iio-hwmon it can
be moved to hwmon framework too (done for SOM and zcu100).

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/e1e1621ac1cee7f36ef20606bb3795e130de9609.1683034376.git.michal.simek@amd.com
---

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
index dbc595c..3f8a7a4 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
@@ -76,6 +76,20 @@
 			default-state = "on";
 		};
 	};
+
+	ams {
+		compatible = "iio-hwmon";
+		io-channels = <&xilinx_ams 0>, <&xilinx_ams 1>, <&xilinx_ams 2>,
+			<&xilinx_ams 3>, <&xilinx_ams 4>, <&xilinx_ams 5>,
+			<&xilinx_ams 6>, <&xilinx_ams 7>, <&xilinx_ams 8>,
+			<&xilinx_ams 9>, <&xilinx_ams 10>, <&xilinx_ams 11>,
+			<&xilinx_ams 12>, <&xilinx_ams 13>, <&xilinx_ams 14>,
+			<&xilinx_ams 15>, <&xilinx_ams 16>, <&xilinx_ams 17>,
+			<&xilinx_ams 18>, <&xilinx_ams 19>, <&xilinx_ams 20>,
+			<&xilinx_ams 21>, <&xilinx_ams 22>, <&xilinx_ams 23>,
+			<&xilinx_ams 24>, <&xilinx_ams 25>, <&xilinx_ams 26>,
+			<&xilinx_ams 27>, <&xilinx_ams 28>, <&xilinx_ams 29>;
+	};
 };
 
 &modepin_gpio {
@@ -320,6 +334,18 @@
 			  "", "", "", ""; /* 170 - 173 */
 };
 
+&xilinx_ams {
+	status = "okay";
+};
+
+&ams_ps {
+	status = "okay";
+};
+
+&ams_pl {
+	status = "okay";
+};
+
 &zynqmp_dpsub {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
index 685f8e4..70c4807 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
@@ -58,6 +58,15 @@
 		};
 	};
 
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&xilinx_ams 0>, <&xilinx_ams 1>, <&xilinx_ams 2>,
+			      <&xilinx_ams 3>, <&xilinx_ams 4>, <&xilinx_ams 5>,
+			      <&xilinx_ams 6>, <&xilinx_ams 7>, <&xilinx_ams 8>,
+			      <&xilinx_ams 9>, <&xilinx_ams 10>,
+			      <&xilinx_ams 11>, <&xilinx_ams 12>;
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		led-ds2 {
@@ -574,6 +583,14 @@
 	status = "okay";
 };
 
+&xilinx_ams {
+	status = "okay";
+};
+
+&ams_ps {
+	status = "okay";
+};
+
 &zynqmp_dpdma {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
index 13c4332..d600eeb 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
@@ -1017,6 +1017,18 @@
 	status = "okay";
 };
 
+&xilinx_ams {
+	status = "okay";
+};
+
+&ams_ps {
+	status = "okay";
+};
+
+&ams_pl {
+	status = "okay";
+};
+
 &zynqmp_dpdma {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
index 485585c..473fae5 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
@@ -501,6 +501,18 @@
 	status = "okay";
 };
 
+&xilinx_ams {
+	status = "okay";
+};
+
+&ams_ps {
+	status = "okay";
+};
+
+&ams_pl {
+	status = "okay";
+};
+
 &zynqmp_dpdma {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
index 44ec9ed..c8ba9ed 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
@@ -513,6 +513,18 @@
 	status = "okay";
 };
 
+&xilinx_ams {
+	status = "okay";
+};
+
+&ams_ps {
+	status = "okay";
+};
+
+&ams_pl {
+	status = "okay";
+};
+
 &zynqmp_dpdma {
 	status = "okay";
 };