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dt-bindings: watchdog: renesas-wdt: Document r8a774a1 support

RZ/G2M (R8A774A1) watchdog implementation is compatible with R-Car
Gen3, therefore add relevant documentation.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

authored by

Fabrizio Castro and committed by
Wim Van Sebroeck 74081c9f 3f16503b

+3 -2
+3 -2
Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
··· 7 7 Examples with soctypes are: 8 8 - "renesas,r8a7743-wdt" (RZ/G1M) 9 9 - "renesas,r8a7745-wdt" (RZ/G1E) 10 + - "renesas,r8a774a1-wdt" (RZ/G2M) 10 11 - "renesas,r8a7790-wdt" (R-Car H2) 11 12 - "renesas,r8a7791-wdt" (R-Car M2-W) 12 13 - "renesas,r8a7792-wdt" (R-Car V2H) ··· 22 21 - "renesas,r7s72100-wdt" (RZ/A1) 23 22 The generic compatible string must be: 24 23 - "renesas,rza-wdt" for RZ/A 25 - - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G 26 - - "renesas,rcar-gen3-wdt" for R-Car Gen3 24 + - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G1 25 + - "renesas,rcar-gen3-wdt" for R-Car Gen3 and RZ/G2 27 26 28 27 - reg : Should contain WDT registers location and length 29 28 - clocks : the clock feeding the watchdog timer.