diff --git a/Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml b/Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml
index c8f69812059725b02bb0e21dd0f3607ceff7a6d1..64619ba08d40dfe0ddfa24298c3521853dec872c 100644
--- a/Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml
+++ b/Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml
@@ -28,7 +28,7 @@ properties:
       Add this property to disable the watchdog during suspend.
       Only use this option if you can't use the watchdog automatic suspend
       function during a suspend (see register CONTROL_B).
-  
+
   dlg,wdt-sd:
     $ref: /schemas/types.yaml#/definitions/uint32
     enum: [0, 1]
diff --git a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
index ffb17add491af98b703ac67a2c45830bec9e962b..eba454d1680f15eb0207c4869c10bb52bdfa45aa 100644
--- a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
@@ -29,6 +29,7 @@ properties:
               - renesas,r9a07g043-wdt    # RZ/G2UL and RZ/Five
               - renesas,r9a07g044-wdt    # RZ/G2{L,LC}
               - renesas,r9a07g054-wdt    # RZ/V2L
+              - renesas,r9a08g045-wdt    # RZ/G3S
           - const: renesas,rzg2l-wdt
 
       - items:
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index c44918768a972cb769d42af5b651e098db5ff13e..bae1d97cce89bd046bd93fbe51524f98f1b9d12f 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -946,7 +946,8 @@ config RENESAS_RZN1WDT
 
 config RENESAS_RZG2LWDT
 	tristate "Renesas RZ/G2L WDT Watchdog"
-	depends on ARCH_RENESAS || COMPILE_TEST
+	depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST
+	depends on PM || COMPILE_TEST
 	select WATCHDOG_CORE
 	help
 	  This driver adds watchdog support for the integrated watchdogs in the
diff --git a/drivers/watchdog/imx7ulp_wdt.c b/drivers/watchdog/imx7ulp_wdt.c
index b21d7a74a42df79f26399d1cf24484ed140abb46..94914a22daff756ca53f480133ef33a8531e7a24 100644
--- a/drivers/watchdog/imx7ulp_wdt.c
+++ b/drivers/watchdog/imx7ulp_wdt.c
@@ -290,6 +290,11 @@ static int imx7ulp_wdt_init(struct imx7ulp_wdt_device *wdt, unsigned int timeout
 	if (wdt->ext_reset)
 		val |= WDOG_CS_INT_EN;
 
+	if (readl(wdt->base + WDOG_CS) & WDOG_CS_EN) {
+		set_bit(WDOG_HW_RUNNING, &wdt->wdd.status);
+		val |= WDOG_CS_EN;
+	}
+
 	do {
 		ret = _imx7ulp_wdt_init(wdt, timeout, val);
 		toval = readl(wdt->base + WDOG_TOVAL);
diff --git a/drivers/watchdog/lenovo_se10_wdt.c b/drivers/watchdog/lenovo_se10_wdt.c
index 139ff0e8220fba4c68c7cd002eeb1522ea90b38d..cd0500e5080b49542a1d4d66bc6f62fd01df376d 100644
--- a/drivers/watchdog/lenovo_se10_wdt.c
+++ b/drivers/watchdog/lenovo_se10_wdt.c
@@ -196,8 +196,8 @@ static int se10_wdt_probe(struct platform_device *pdev)
 	watchdog_set_drvdata(&priv->wdd, priv);
 
 	priv->wdd.parent = dev;
-	priv->wdd.info = &wdt_info,
-	priv->wdd.ops = &se10_wdt_ops,
+	priv->wdd.info = &wdt_info;
+	priv->wdd.ops = &se10_wdt_ops;
 	priv->wdd.timeout = WATCHDOG_TIMEOUT; /* Set default timeout */
 	priv->wdd.min_timeout = MIN_TIMEOUT;
 	priv->wdd.max_timeout = MAX_TIMEOUT;
diff --git a/drivers/watchdog/rzg2l_wdt.c b/drivers/watchdog/rzg2l_wdt.c
index 1741f98ca67c527a326d3376a667e6403ea4380f..2a35f890a2883a2b3f2d0ad42bd4be0a0f944528 100644
--- a/drivers/watchdog/rzg2l_wdt.c
+++ b/drivers/watchdog/rzg2l_wdt.c
@@ -8,7 +8,6 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/io.h>
-#include <linux/iopoll.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -54,35 +53,11 @@ struct rzg2l_wdt_priv {
 	struct reset_control *rstc;
 	unsigned long osc_clk_rate;
 	unsigned long delay;
-	unsigned long minimum_assertion_period;
 	struct clk *pclk;
 	struct clk *osc_clk;
 	enum rz_wdt_type devtype;
 };
 
-static int rzg2l_wdt_reset(struct rzg2l_wdt_priv *priv)
-{
-	int err, status;
-
-	if (priv->devtype == WDT_RZV2M) {
-		/* WDT needs TYPE-B reset control */
-		err = reset_control_assert(priv->rstc);
-		if (err)
-			return err;
-		ndelay(priv->minimum_assertion_period);
-		err = reset_control_deassert(priv->rstc);
-		if (err)
-			return err;
-		err = read_poll_timeout(reset_control_status, status,
-					status != 1, 0, 1000, false,
-					priv->rstc);
-	} else {
-		err = reset_control_reset(priv->rstc);
-	}
-
-	return err;
-}
-
 static void rzg2l_wdt_wait_delay(struct rzg2l_wdt_priv *priv)
 {
 	/* delay timer when change the setting register */
@@ -123,8 +98,17 @@ static void rzg2l_wdt_init_timeout(struct watchdog_device *wdev)
 static int rzg2l_wdt_start(struct watchdog_device *wdev)
 {
 	struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev);
+	int ret;
 
-	pm_runtime_get_sync(wdev->parent);
+	ret = pm_runtime_resume_and_get(wdev->parent);
+	if (ret)
+		return ret;
+
+	ret = reset_control_deassert(priv->rstc);
+	if (ret) {
+		pm_runtime_put(wdev->parent);
+		return ret;
+	}
 
 	/* Initialize time out */
 	rzg2l_wdt_init_timeout(wdev);
@@ -141,15 +125,23 @@ static int rzg2l_wdt_start(struct watchdog_device *wdev)
 static int rzg2l_wdt_stop(struct watchdog_device *wdev)
 {
 	struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev);
+	int ret;
 
-	rzg2l_wdt_reset(priv);
-	pm_runtime_put(wdev->parent);
+	ret = reset_control_assert(priv->rstc);
+	if (ret)
+		return ret;
+
+	ret = pm_runtime_put(wdev->parent);
+	if (ret < 0)
+		return ret;
 
 	return 0;
 }
 
 static int rzg2l_wdt_set_timeout(struct watchdog_device *wdev, unsigned int timeout)
 {
+	int ret = 0;
+
 	wdev->timeout = timeout;
 
 	/*
@@ -158,22 +150,30 @@ static int rzg2l_wdt_set_timeout(struct watchdog_device *wdev, unsigned int time
 	 * to reset the module) so that it is updated with new timeout values.
 	 */
 	if (watchdog_active(wdev)) {
-		rzg2l_wdt_stop(wdev);
-		rzg2l_wdt_start(wdev);
+		ret = rzg2l_wdt_stop(wdev);
+		if (ret)
+			return ret;
+
+		ret = rzg2l_wdt_start(wdev);
 	}
 
-	return 0;
+	return ret;
 }
 
 static int rzg2l_wdt_restart(struct watchdog_device *wdev,
 			     unsigned long action, void *data)
 {
 	struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev);
+	int ret;
 
 	clk_prepare_enable(priv->pclk);
 	clk_prepare_enable(priv->osc_clk);
 
 	if (priv->devtype == WDT_RZG2L) {
+		ret = reset_control_deassert(priv->rstc);
+		if (ret)
+			return ret;
+
 		/* Generate Reset (WDTRSTB) Signal on parity error */
 		rzg2l_wdt_write(priv, 0, PECR);
 
@@ -181,7 +181,9 @@ static int rzg2l_wdt_restart(struct watchdog_device *wdev,
 		rzg2l_wdt_write(priv, PEEN_FORCE, PEEN);
 	} else {
 		/* RZ/V2M doesn't have parity error registers */
-		rzg2l_wdt_reset(priv);
+		ret = reset_control_reset(priv->rstc);
+		if (ret)
+			return ret;
 
 		wdev->timeout = 0;
 
@@ -224,13 +226,11 @@ static const struct watchdog_ops rzg2l_wdt_ops = {
 	.restart = rzg2l_wdt_restart,
 };
 
-static void rzg2l_wdt_reset_assert_pm_disable(void *data)
+static void rzg2l_wdt_pm_disable(void *data)
 {
 	struct watchdog_device *wdev = data;
-	struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev);
 
 	pm_runtime_disable(wdev->parent);
-	reset_control_assert(priv->rstc);
 }
 
 static int rzg2l_wdt_probe(struct platform_device *pdev)
@@ -273,19 +273,8 @@ static int rzg2l_wdt_probe(struct platform_device *pdev)
 		return dev_err_probe(&pdev->dev, PTR_ERR(priv->rstc),
 				     "failed to get cpg reset");
 
-	ret = reset_control_deassert(priv->rstc);
-	if (ret)
-		return dev_err_probe(dev, ret, "failed to deassert");
-
 	priv->devtype = (uintptr_t)of_device_get_match_data(dev);
 
-	if (priv->devtype == WDT_RZV2M) {
-		priv->minimum_assertion_period = RZV2M_A_NSEC +
-			3 * F2CYCLE_NSEC(pclk_rate) + 5 *
-			max(F2CYCLE_NSEC(priv->osc_clk_rate),
-			    F2CYCLE_NSEC(pclk_rate));
-	}
-
 	pm_runtime_enable(&pdev->dev);
 
 	priv->wdev.info = &rzg2l_wdt_ident;
@@ -297,10 +286,9 @@ static int rzg2l_wdt_probe(struct platform_device *pdev)
 	priv->wdev.timeout = WDT_DEFAULT_TIMEOUT;
 
 	watchdog_set_drvdata(&priv->wdev, priv);
-	ret = devm_add_action_or_reset(&pdev->dev,
-				       rzg2l_wdt_reset_assert_pm_disable,
-				       &priv->wdev);
-	if (ret < 0)
+	dev_set_drvdata(dev, priv);
+	ret = devm_add_action_or_reset(&pdev->dev, rzg2l_wdt_pm_disable, &priv->wdev);
+	if (ret)
 		return ret;
 
 	watchdog_set_nowayout(&priv->wdev, nowayout);
@@ -320,10 +308,35 @@ static const struct of_device_id rzg2l_wdt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, rzg2l_wdt_ids);
 
+static int rzg2l_wdt_suspend_late(struct device *dev)
+{
+	struct rzg2l_wdt_priv *priv = dev_get_drvdata(dev);
+
+	if (!watchdog_active(&priv->wdev))
+		return 0;
+
+	return rzg2l_wdt_stop(&priv->wdev);
+}
+
+static int rzg2l_wdt_resume_early(struct device *dev)
+{
+	struct rzg2l_wdt_priv *priv = dev_get_drvdata(dev);
+
+	if (!watchdog_active(&priv->wdev))
+		return 0;
+
+	return rzg2l_wdt_start(&priv->wdev);
+}
+
+static const struct dev_pm_ops rzg2l_wdt_pm_ops = {
+	LATE_SYSTEM_SLEEP_PM_OPS(rzg2l_wdt_suspend_late, rzg2l_wdt_resume_early)
+};
+
 static struct platform_driver rzg2l_wdt_driver = {
 	.driver = {
 		.name = "rzg2l_wdt",
 		.of_match_table = rzg2l_wdt_ids,
+		.pm = &rzg2l_wdt_pm_ops,
 	},
 	.probe = rzg2l_wdt_probe,
 };
diff --git a/drivers/watchdog/rzn1_wdt.c b/drivers/watchdog/rzn1_wdt.c
index 980c1717adb5d09bc3141a5205c96c2547225507..7d3192d34afd50c22071eab0f0841a788b69c635 100644
--- a/drivers/watchdog/rzn1_wdt.c
+++ b/drivers/watchdog/rzn1_wdt.c
@@ -140,9 +140,9 @@ static int rzn1_wdt_probe(struct platform_device *pdev)
 	}
 
 	wdt->clk_rate_khz = clk_rate / 1000;
-	wdt->wdtdev.info = &rzn1_wdt_info,
-	wdt->wdtdev.ops = &rzn1_wdt_ops,
-	wdt->wdtdev.status = WATCHDOG_NOWAYOUT_INIT_STATUS,
+	wdt->wdtdev.info = &rzn1_wdt_info;
+	wdt->wdtdev.ops = &rzn1_wdt_ops;
+	wdt->wdtdev.status = WATCHDOG_NOWAYOUT_INIT_STATUS;
 	wdt->wdtdev.parent = dev;
 	/*
 	 * The period of the watchdog cannot be changed once set
diff --git a/drivers/watchdog/starfive-wdt.c b/drivers/watchdog/starfive-wdt.c
index b4b059883618b94e8b8d77d9170b5f8cd71c7419..19a2620d3d3893db1f57db78d230f94bc385db22 100644
--- a/drivers/watchdog/starfive-wdt.c
+++ b/drivers/watchdog/starfive-wdt.c
@@ -152,8 +152,10 @@ static int starfive_wdt_enable_clock(struct starfive_wdt *wdt)
 		return dev_err_probe(wdt->wdd.parent, ret, "failed to enable apb clock\n");
 
 	ret = clk_prepare_enable(wdt->core_clk);
-	if (ret)
+	if (ret) {
+		clk_disable_unprepare(wdt->apb_clk);
 		return dev_err_probe(wdt->wdd.parent, ret, "failed to enable core clock\n");
+	}
 
 	return 0;
 }
diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c
index e2bd266b1b5b3dca74c2db3cf3612adee52b43f1..4190cb800cc45df48ab0a188f7e592d9b17c77ed 100644
--- a/drivers/watchdog/watchdog_dev.c
+++ b/drivers/watchdog/watchdog_dev.c
@@ -1004,7 +1004,7 @@ static struct miscdevice watchdog_miscdev = {
 	.fops		= &watchdog_fops,
 };
 
-static struct class watchdog_class = {
+static const struct class watchdog_class = {
 	.name =		"watchdog",
 	.dev_groups =	wdt_groups,
 };