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author | Jonathan Neuschäfer <j.neuschaefer@gmx.net> | 2022-01-29 14:52:20 +0300 |
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committer | Joel Stanley <joel@jms.id.au> | 2022-02-15 08:53:31 +0300 |
commit | a268b155100b37cd280fcfd3ef72be536f33dfa0 (patch) | |
tree | cebb6724e989253a4ba944330457566bcbaab2c4 /Documentation/devicetree/bindings/arm/npcm | |
parent | e783362eb54cd99b2cac8b3a9aeac942e6f6ac07 (diff) | |
download | linux-a268b155100b37cd280fcfd3ef72be536f33dfa0.tar.xz |
dt-bindings: arm/npcm: Add binding for global control registers (GCR)
A nuvoton,*-gcr node is present in nuvoton-common-npcm7xx.dtsi and will
be added to nuvoton-wpcm450.dtsi. It is necessary for the NPCM7xx and
WPCM450 pinctrl drivers, and may later be used to retrieve SoC model and
version information.
This patch adds a binding to describe this node.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220129115228.2257310-2-j.neuschaefer@gmx.net
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'Documentation/devicetree/bindings/arm/npcm')
-rw-r--r-- | Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml | 48 |
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>; + }; + }; |