From 1c85ffc86a2b7b687b110b1427c7e701a453fc54 Mon Sep 17 00:00:00 2001 From: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Date: Mon, 12 Feb 2018 17:44:20 +0000 Subject: [PATCH] dt-bindings: watchdog: renesas-wdt: Add R-Car Gen2 support 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@bp.renesas.com> Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> --- .../bindings/watchdog/renesas-wdt.txt | 22 +++++++++++++------ 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt index fa56697a1ba6e0..f24d802b8056f6 100644 --- a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt @@ -1,19 +1,27 @@ 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,r7s72100-wdt" (RZ/A1) + - "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,r8a77965-wdt" (R-Car M3-N) - "renesas,r8a77970-wdt" (R-Car V3M) - "renesas,r8a77995-wdt" (R-Car D3) - - When compatible with the generic version, nodes must list the SoC-specific - version corresponding to the platform first, followed by the generic - version. + - "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 - reg : Should contain WDT registers location and length - clocks : the clock feeding the watchdog timer. -- GitLab