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[104.194.74.249]) by smtp.gmail.com with ESMTPSA id x4sm440943pfb.27.2021.07.29.21.14.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jul 2021 21:14:13 -0700 (PDT) From: Artem Lapkin X-Google-Original-From: Artem Lapkin To: narmstrong@baylibre.com Cc: wim@linux-watchdog.org, linux@roeck-us.net, khilman@baylibre.com, jbrunet@baylibre.com, christianshewitt@gmail.com, martin.blumenstingl@googlemail.com, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, art@khadas.com, nick@khadas.com, gouwa@khadas.com Subject: [PATCH v4 1/3] watchdog: meson_gxbb_wdt: add nowayout parameter Date: Fri, 30 Jul 2021 12:13:53 +0800 Message-Id: <20210730041355.2810397-2-art@khadas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210730041355.2810397-1-art@khadas.com> References: <20210730041355.2810397-1-art@khadas.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210729_211414_791739_495E202E X-CRM114-Status: GOOD ( 10.24 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Add nowayout module parameter Signed-off-by: Artem Lapkin Reviewed-by: Guenter Roeck --- drivers/watchdog/meson_gxbb_wdt.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/watchdog/meson_gxbb_wdt.c b/drivers/watchdog/meson_gxbb_wdt.c index 5a9ca10fbcfa..5aebc3a09652 100644 --- a/drivers/watchdog/meson_gxbb_wdt.c +++ b/drivers/watchdog/meson_gxbb_wdt.c @@ -29,6 +29,11 @@ #define GXBB_WDT_TCNT_SETUP_MASK (BIT(16) - 1) #define GXBB_WDT_TCNT_CNT_SHIFT 16 +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + struct meson_gxbb_wdt { void __iomem *reg_base; struct watchdog_device wdt_dev; @@ -175,6 +180,7 @@ static int meson_gxbb_wdt_probe(struct platform_device *pdev) data->wdt_dev.max_hw_heartbeat_ms = GXBB_WDT_TCNT_SETUP_MASK; data->wdt_dev.min_timeout = 1; data->wdt_dev.timeout = DEFAULT_TIMEOUT; + watchdog_set_nowayout(&data->wdt_dev, nowayout); watchdog_set_drvdata(&data->wdt_dev, data); /* Setup with 1ms timebase */