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From: Fabio Estevam <festevam@gmail.com>
To: linux@roeck-us.net
Cc: wim@linux-watchdog.org, linux-watchdog@vger.kernel.org,
	Anson.Huang@nxp.com, shawnguo@kernel.org, linux-imx@nxp.com,
	kernel@pengutronix.de, Fabio Estevam <festevam@gmail.com>
Subject: [PATCH 2/5] watchdog: imx7ulp: Pass the wdog instance inimx7ulp_wdt_enable()
Date: Tue, 29 Oct 2019 14:40:34 -0300
Message-ID: <20191029174037.25381-2-festevam@gmail.com> (raw)
In-Reply-To: <20191029174037.25381-1-festevam@gmail.com>

It is more natural to pass the watchdog instance inside
imx7ulp_wdt_enable() instead of the base address.

This also has the benefit to reduce the code a bit.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
 drivers/watchdog/imx7ulp_wdt.c | 25 +++++++++++--------------
 1 file changed, 11 insertions(+), 14 deletions(-)

diff --git a/drivers/watchdog/imx7ulp_wdt.c b/drivers/watchdog/imx7ulp_wdt.c
index ba5d535a6db2..eea415609d44 100644
--- a/drivers/watchdog/imx7ulp_wdt.c
+++ b/drivers/watchdog/imx7ulp_wdt.c
@@ -47,15 +47,17 @@ struct imx7ulp_wdt_device {
 	struct clk *clk;
 };
 
-static inline void imx7ulp_wdt_enable(void __iomem *base, bool enable)
+static inline void imx7ulp_wdt_enable(struct watchdog_device *wdog, bool enable)
 {
-	u32 val = readl(base + WDOG_CS);
+	struct imx7ulp_wdt_device *wdt = watchdog_get_drvdata(wdog);
+
+	u32 val = readl(wdt->base + WDOG_CS);
 
-	writel(UNLOCK, base + WDOG_CNT);
+	writel(UNLOCK, wdt->base + WDOG_CNT);
 	if (enable)
-		writel(val | WDOG_CS_EN, base + WDOG_CS);
+		writel(val | WDOG_CS_EN, wdt->base + WDOG_CS);
 	else
-		writel(val & ~WDOG_CS_EN, base + WDOG_CS);
+		writel(val & ~WDOG_CS_EN, wdt->base + WDOG_CS);
 }
 
 static inline bool imx7ulp_wdt_is_enabled(void __iomem *base)
@@ -76,18 +78,15 @@ static int imx7ulp_wdt_ping(struct watchdog_device *wdog)
 
 static int imx7ulp_wdt_start(struct watchdog_device *wdog)
 {
-	struct imx7ulp_wdt_device *wdt = watchdog_get_drvdata(wdog);
 
-	imx7ulp_wdt_enable(wdt->base, true);
+	imx7ulp_wdt_enable(wdog, true);
 
 	return 0;
 }
 
 static int imx7ulp_wdt_stop(struct watchdog_device *wdog)
 {
-	struct imx7ulp_wdt_device *wdt = watchdog_get_drvdata(wdog);
-
-	imx7ulp_wdt_enable(wdt->base, false);
+	imx7ulp_wdt_enable(wdog, false);
 
 	return 0;
 }
@@ -109,10 +108,8 @@ static int imx7ulp_wdt_set_timeout(struct watchdog_device *wdog,
 static int imx7ulp_wdt_restart(struct watchdog_device *wdog,
 			       unsigned long action, void *data)
 {
-	struct imx7ulp_wdt_device *wdt = watchdog_get_drvdata(wdog);
-
-	imx7ulp_wdt_enable(wdt->base, true);
-	imx7ulp_wdt_set_timeout(&wdt->wdd, 1);
+	imx7ulp_wdt_enable(wdog, true);
+	imx7ulp_wdt_set_timeout(wdog, 1);
 
 	/* wait for wdog to fire */
 	while (true)
-- 
2.17.1



  reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-29 17:40 [PATCH 1/5] watchdog: imx7ulp: Fix reboot hang Fabio Estevam
2019-10-29 17:40 ` Fabio Estevam [this message]
2019-11-02 15:37   ` [PATCH 2/5] watchdog: imx7ulp: Pass the wdog instance inimx7ulp_wdt_enable() Guenter Roeck
2019-10-29 17:40 ` [PATCH 3/5] watchdog: imx7ulp: Remove unused structure member Fabio Estevam
2019-11-02 15:39   ` Guenter Roeck
2019-10-29 17:40 ` [PATCH 4/5] watchdog: imx7ulp: Remove inline annotations Fabio Estevam
2019-11-02 15:39   ` Guenter Roeck
2019-10-29 17:40 ` [PATCH 5/5] watchdog: imx7ulp: Use definitions instead of magic values Fabio Estevam
2019-11-02 15:41   ` Guenter Roeck
2019-11-02 15:36 ` [PATCH 1/5] watchdog: imx7ulp: Fix reboot hang Guenter Roeck
2019-11-04 13:45   ` Fabio Estevam
2019-11-04 14:06     ` Guenter Roeck
2019-11-07 17:46       ` Fabio Estevam
2019-11-08 14:39         ` Guenter Roeck

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