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From:   Michal Simek <michal.simek@amd.com>
To:     <linux-kernel@vger.kernel.org>, <monstr@monstr.eu>,
        <michal.simek@xilinx.com>, <git@xilinx.com>
CC:     Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>,
        Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Parth Gajjar <parth.gajjar@amd.com>,
        "Rob Herring" <robh+dt@kernel.org>,
        Srinivas Neeli <srinivas.neeli@xilinx.com>,
        Vishal Sagar <vishal.sagar@amd.com>,
        <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH 21/23] arm64: zynqmp: Enable AMS on SOM and other zcu10x boards
Date:   Tue, 2 May 2023 15:35:49 +0200
Message-ID: <e1e1621ac1cee7f36ef20606bb3795e130de9609.1683034376.git.michal.simek@amd.com>
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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>
---

 .../boot/dts/xilinx/zynqmp-sm-k26-revA.dts    | 26 +++++++++++++++++++
 .../boot/dts/xilinx/zynqmp-zcu100-revC.dts    | 17 ++++++++++++
 .../boot/dts/xilinx/zynqmp-zcu102-revA.dts    | 12 +++++++++
 .../boot/dts/xilinx/zynqmp-zcu104-revA.dts    | 12 +++++++++
 .../boot/dts/xilinx/zynqmp-zcu104-revC.dts    | 12 +++++++++
 5 files changed, 79 insertions(+)

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 e284979fd7b1..78ff6a9b3144 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 @@ ds36-led {
 			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 {
@@ -327,6 +341,18 @@ &gpio {
 			  "", "", "", ""; /* 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 c99abb99efcb..c8be41d77cb9 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
@@ -59,6 +59,15 @@ switch-4 {
 		};
 	};
 
+	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 {
@@ -581,6 +590,14 @@ &watchdog0 {
 	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 5b6403865541..b2e1f3581f6b 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
@@ -1027,6 +1027,18 @@ &watchdog0 {
 	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 a74a2061431a..1f30c37c2e03 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
@@ -511,6 +511,18 @@ &watchdog0 {
 	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 73972d83ed4d..474744278b97 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
@@ -523,6 +523,18 @@ &watchdog0 {
 	status = "okay";
 };
 
+&xilinx_ams {
+	status = "okay";
+};
+
+&ams_ps {
+	status = "okay";
+};
+
+&ams_pl {
+	status = "okay";
+};
+
 &zynqmp_dpdma {
 	status = "okay";
 };
-- 
2.36.1