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Wed, 29 Jun 2022 04:07:21 -0700 (PDT) X-Google-Smtp-Source: AGRyM1sKWzKffTLYTO8eiGO8f6TCl+ogtMvFqx7iN8S/I3sXiDkEvulKUNZaeOvQuHQ0kxAuN1DX5A== X-Received: by 2002:a17:906:6545:b0:722:7c99:1ad7 with SMTP id u5-20020a170906654500b007227c991ad7mr2738159ejn.325.1656500840947; Wed, 29 Jun 2022 04:07:20 -0700 (PDT) Received: from Isaac-Laptop.fritz.box ([2a02:908:672:1020:dd2a:5258:a4c9:43ea]) by smtp.gmail.com with ESMTPSA id r1-20020aa7cb81000000b004357b717a96sm11127630edt.85.2022.06.29.04.07.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Jun 2022 04:07:20 -0700 (PDT) From: Isaac True To: linux-watchdog@vger.kernel.org Cc: devicetree@vger.kernel.org, wim@linux-watchdog.org, linux@roeck-us.net, Isaac True Subject: [PATCH 1/2] dt-bindings: watchdog: gpio: add minimum interval Date: Wed, 29 Jun 2022 13:06:25 +0200 Message-Id: <20220629110626.2158127-1-isaac.true@canonical.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add the "min_hw_margin_ms" parameter to gpio_wdt devices, allowing a minimum interval to be specified, stopping watchdog devices from being fed too quickly if they require a certain interval between feeds. Signed-off-by: Isaac True --- Documentation/devicetree/bindings/watchdog/gpio-wdt.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt b/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt index 198794963786..4f13dbbf12fd 100644 --- a/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt @@ -12,6 +12,8 @@ Required Properties: the opposite level disables the WDT. Active level is determined by the GPIO flags. - hw_margin_ms: Maximum time to reset watchdog circuit (milliseconds). +- min_hw_margin_ms: Minimum time to reset watchdog circuit (milliseconds). + Defaults to 0 ms. Optional Properties: - always-running: If the watchdog timer cannot be disabled, add this flag to