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watchdog: renesas-wdt: Add support for the r8a7796 wdt
Document support for the Watchdog Timer (WDT) Controller in the Renesas R-Car M3-W (r8a7796) SoC. No driver update is needed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Renesas Watchdog Timer (WDT) Controller
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Required properties:
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- compatible : Should be "renesas,r8a7795-wdt", or "renesas,rcar-gen3-wdt"
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- compatible : Should be "renesas,<soctype>-wdt", and
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"renesas,rcar-gen3-wdt" as fallback.
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Examples with soctypes are:
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- "renesas,r8a7795-wdt" (R-Car H3)
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- "renesas,r8a7796-wdt" (R-Car M3-W)
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When compatible with the generic version, nodes must list the SoC-specific
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version corresponding to the platform first, followed by the generic
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