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author | Geert Uytterhoeven <geert+renesas@glider.be> | 2020-04-27 22:25:22 +0300 |
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committer | Rob Herring <robh@kernel.org> | 2020-05-12 04:56:39 +0300 |
commit | d0941cfb9fa8ac69a67f264f81e2ba8ecb1caa0d (patch) | |
tree | 39e3f5a135aae9e9c85dc67eaf2ee3e8a0961ab8 /Documentation/devicetree/bindings/watchdog | |
parent | 7f7d408e5a00d51519279e74176f7dc3a5eaa4a9 (diff) | |
download | linux-d0941cfb9fa8ac69a67f264f81e2ba8ecb1caa0d.tar.xz |
dt-bindings: watchdog: renesas-wdt: Convert to json-schema
Convert the Renesas Watchdog Timer (WDT) Controller Device Tree binding
documentation to json-schema.
Add missing "renesas,r8a77980-wdt" compatible value.
Document missing properties.
Update the example to match reality.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/watchdog')
-rw-r--r-- | Documentation/devicetree/bindings/watchdog/renesas,wdt.txt | 50 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml | 100 |
2 files changed, 100 insertions, 50 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt deleted file mode 100644 index 79b3c62f183d..000000000000 --- a/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt +++ /dev/null @@ -1,50 +0,0 @@ -Renesas Watchdog Timer (WDT) Controller - -Required properties: - - compatible : Must be "renesas,<soctype>-wdt", followed by a generic - fallback compatible string when compatible with the generic - version. - Examples with soctypes are: - - "renesas,r8a7743-wdt" (RZ/G1M) - - "renesas,r8a7744-wdt" (RZ/G1N) - - "renesas,r8a7745-wdt" (RZ/G1E) - - "renesas,r8a77470-wdt" (RZ/G1C) - - "renesas,r8a774a1-wdt" (RZ/G2M) - - "renesas,r8a774b1-wdt" (RZ/G2N) - - "renesas,r8a774c0-wdt" (RZ/G2E) - - "renesas,r8a7790-wdt" (R-Car H2) - - "renesas,r8a7791-wdt" (R-Car M2-W) - - "renesas,r8a7792-wdt" (R-Car V2H) - - "renesas,r8a7793-wdt" (R-Car M2-N) - - "renesas,r8a7794-wdt" (R-Car E2) - - "renesas,r8a7795-wdt" (R-Car H3) - - "renesas,r8a7796-wdt" (R-Car M3-W) - - "renesas,r8a77961-wdt" (R-Car M3-W+) - - "renesas,r8a77965-wdt" (R-Car M3-N) - - "renesas,r8a77970-wdt" (R-Car V3M) - - "renesas,r8a77990-wdt" (R-Car E3) - - "renesas,r8a77995-wdt" (R-Car D3) - - "renesas,r7s72100-wdt" (RZ/A1) - - "renesas,r7s9210-wdt" (RZ/A2) - The generic compatible string must be: - - "renesas,rza-wdt" for RZ/A - - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G1 - - "renesas,rcar-gen3-wdt" for R-Car Gen3 and RZ/G2 - -- reg : Should contain WDT registers location and length -- clocks : the clock feeding the watchdog timer. - -Optional properties: -- timeout-sec : Contains the watchdog timeout in seconds -- power-domains : the power domain the WDT belongs to -- interrupts: Some WDTs have an interrupt when used in interval timer mode - -Examples: - - wdt0: watchdog@e6020000 { - compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt"; - reg = <0 0xe6020000 0 0x0c>; - clocks = <&cpg CPG_MOD 402>; - power-domains = <&cpg>; - timeout-sec = <60>; - }; diff --git a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml new file mode 100644 index 000000000000..27e8c4accd67 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/renesas,wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas Watchdog Timer (WDT) Controller + +maintainers: + - Wolfram Sang <wsa+renesas@sang-engineering.com> + - Geert Uytterhoeven <geert+renesas@glider.be> + +allOf: + - $ref: "watchdog.yaml#" + +properties: + compatible: + oneOf: + - items: + - enum: + - renesas,r7s72100-wdt # RZ/A1 + - renesas,r7s9210-wdt # RZ/A2 + - const: renesas,rza-wdt # RZ/A + + - items: + - enum: + - renesas,r8a7743-wdt # RZ/G1M + - renesas,r8a7744-wdt # RZ/G1N + - renesas,r8a7745-wdt # RZ/G1E + - renesas,r8a77470-wdt # RZ/G1C + - renesas,r8a7790-wdt # R-Car H2 + - renesas,r8a7791-wdt # R-Car M2-W + - renesas,r8a7792-wdt # R-Car V2H + - renesas,r8a7793-wdt # R-Car M2-N + - renesas,r8a7794-wdt # R-Car E2 + - const: renesas,rcar-gen2-wdt # R-Car Gen2 and RZ/G1 + + - items: + - enum: + - renesas,r8a774a1-wdt # RZ/G2M + - renesas,r8a774b1-wdt # RZ/G2N + - renesas,r8a774c0-wdt # RZ/G2E + - renesas,r8a7795-wdt # R-Car H3 + - renesas,r8a7796-wdt # R-Car M3-W + - renesas,r8a77961-wdt # R-Car M3-W+ + - renesas,r8a77965-wdt # R-Car M3-N + - renesas,r8a77970-wdt # R-Car V3M + - renesas,r8a77980-wdt # R-Car V3H + - renesas,r8a77990-wdt # R-Car E3 + - renesas,r8a77995-wdt # R-Car D3 + - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + power-domains: + maxItems: 1 + + resets: + maxItems: 1 + + timeout-sec: true + +required: + - compatible + - reg + - clocks + +if: + not: + properties: + compatible: + contains: + enum: + - renesas,rza-wdt +then: + required: + - power-domains + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/r8a7795-cpg-mssr.h> + #include <dt-bindings/power/r8a7795-sysc.h> + wdt0: watchdog@e6020000 { + compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt"; + reg = <0xe6020000 0x0c>; + clocks = <&cpg CPG_MOD 402>; + power-domains = <&sysc R8A7795_PD_ALWAYS_ON>; + resets = <&cpg 402>; + timeout-sec = <60>; + }; |