Merge tag 'nuvoton-5.18-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc into arm/dt

Nuvoton device tree updates for 5.18

 * Additions to wpcm450 following the upstremaing of the pinctrl/gpio
   driver for this platform

 * Match more of the platform in MAINTAINERS

* tag 'nuvoton-5.18-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc:
  MAINTAINERS: ARM/WPCM450: Add 'W:' line with wiki
  ARM: dts: wpcm450: Add pinmux information to UART0
  ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add GPIO LEDs and buttons
  ARM: dts: wpcm450: Add pin functions
  ARM: dts: wpcm450: Add pinctrl and GPIO nodes
  ARM: dts: wpcm450: Add global control registers (GCR) node
  MAINTAINERS: Match all of bindings/arm/npcm/ as part of NPCM architecture
  dt-bindings: arm/npcm: Add binding for global control registers (GCR)

Link: https://lore.kernel.org/r/CACPK8XdjF6dG04hR+iMpUP8=LSJi5x-hRivgCGDaY7o_461eJw@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 48 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml b/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml
new file mode 100644
index 000000000000..fcb211add7d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/npcm/nuvoton,gcr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Global Control Registers block in Nuvoton SoCs
+
+maintainers:
+  - Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+
+description:
+  The Global Control Registers (GCR) are a block of registers in Nuvoton SoCs
+  that expose misc functionality such as chip model and version information or
+  pinmux settings.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - nuvoton,wpcm450-gcr
+          - nuvoton,npcm750-gcr
+      - const: syscon
+      - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties:
+  type: object
+
+examples:
+  - |
+    gcr: syscon@800000 {
+      compatible = "nuvoton,npcm750-gcr", "syscon", "simple-mfd";
+      reg = <0x800000 0x1000>;
+
+      mux-controller {
+        compatible = "mmio-mux";
+        #mux-control-cells = <1>;
+        mux-reg-masks = <0x38 0x07>;
+        idle-states = <2>;
+      };
+    };