This commit documents the compatibility with R-Car Gen2 and RZ/G devices by defining the generic compatible string "renesas,rcar-gen2-wdt". Also, this patch expands the list of SoC-specific compatible strings to include RZ/G and R-Car Gen2 devices. Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx> Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@xxxxxxxxxxxxxx> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> --- v4->v5: * no change .../devicetree/bindings/watchdog/renesas-wdt.txt | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt index bf6d1ca..4815128 100644 --- a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt @@ -1,17 +1,26 @@ Renesas Watchdog Timer (WDT) Controller Required properties: -- compatible : Should be "renesas,<soctype>-wdt", and - "renesas,rcar-gen3-wdt" or "renesas,rza-wdt" as fallback. + - 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,r8a7745-wdt" (RZ/G1E) + - "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,r8a77995-wdt" (R-Car D3) - "renesas,r7s72100-wdt" (RZ/A1) + The generic compatible string must be: + - "renesas,rza-wdt" for RZ/A + - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G + - "renesas,rcar-gen3-wdt" for R-Car Gen3 - When compatible with the generic version, nodes must list the SoC-specific - version corresponding to the platform first, followed by the generic - version. - reg : Should contain WDT registers location and length - clocks : the clock feeding the watchdog timer. -- 2.7.4
