linux-kernel - [PATCH 1/2] dt-bindings: w1: Add YAML DT Schema for AMD w1 master and MAINTAINERS entry

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Message-ID: <20231013093109.37165-2-kris.chaplin@amd.com>
Date:   Fri, 13 Oct 2023 02:30:12 -0700
From:   Kris Chaplin <kris.chaplin@....com>
To:     <kris.chaplin@....com>, <thomas.delev@....com>,
        <michal.simek@....com>, <krzysztof.kozlowski@...aro.org>,
        <robh+dt@...nel.org>, <conor+dt@...nel.org>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <git@....com>
Subject: [PATCH 1/2] dt-bindings: w1: Add YAML DT Schema for AMD w1 master and MAINTAINERS entry

Add YAML DT Schema for the AMD w1 master IP.

This hardware guarantees protocol timing for driving off-board devices such
as thermal sensors, proms, etc using the 1wire protocol.

Add MAINTAINERS entry for DT Schema.

Co-developed-by: Thomas Delev <thomas.delev@....com>
Signed-off-by: Thomas Delev <thomas.delev@....com>
Signed-off-by: Kris Chaplin <kris.chaplin@....com>
---
 .../bindings/w1/amd,axi-1wire-master.yaml     | 44 +++++++++++++++++++
 MAINTAINERS                                   |  7 +++
 2 files changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/w1/amd,axi-1wire-master.yaml

diff --git a/Documentation/devicetree/bindings/w1/amd,axi-1wire-master.yaml b/Documentation/devicetree/bindings/w1/amd,axi-1wire-master.yaml
new file mode 100644
index 000000000000..41f7294a84a3
--- /dev/null
+++ b/Documentation/devicetree/bindings/w1/amd,axi-1wire-master.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/w1/amd,axi-1wire-master.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMD AXI 1-wire bus master for Programmable Logic
+
+maintainers:
+  - Kris Chaplin <kris.chaplin@....com>
+
+properties:
+  compatible:
+    const: amd,axi-1wire-master
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    onewire@...00000 {
+        compatible = "amd,axi-1wire-master";
+        reg = <0xa0000000 0x10000>;
+        clocks = <&zynqmp_clk 0x47>;
+        interrupts = <GIC_SPI 0x59 IRQ_TYPE_LEVEL_HIGH>;
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 4b2c378b4fd9..6ec3922b256e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1066,6 +1066,13 @@ M:	Sanjay R Mehta <sanju.mehta@....com>
 S:	Maintained
 F:	drivers/spi/spi-amd.c
 
+AMD W1 DRIVER
+M:	Kris Chaplin <kris.chaplin@....com>
+R:	Thomas Delev <thomas.delev@....com>
+R:	Michal Simek <michal.simek@....com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/w1/amd,axi-1wire-master.yaml
+
 AMD XGBE DRIVER
 M:	"Shyam Sundar S K" <Shyam-sundar.S-k@....com>
 L:	netdev@...r.kernel.org
-- 
2.42.GIT