From: Guenter Roeck <linux@roeck-us.net>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Wim Van Sebroeck <wim@iguana.be>,
linux-arm-kernel@lists.infradead.org,
linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org,
Guenter Roeck <linux@roeck-us.net>
Subject: [PATCH 4/4] watchdog: coh901327_wdt: Use dev variable instead of pdev->dev
Date: Tue, 3 Jan 2017 19:25:43 -0800 [thread overview]
Message-ID: <1483500343-27113-4-git-send-email-linux@roeck-us.net> (raw)
In-Reply-To: <1483500343-27113-1-git-send-email-linux@roeck-us.net>
Use a local dev variable instead of dereferencing pdev->dev several
times in the probe function to make the code easier to read.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
drivers/watchdog/coh901327_wdt.c | 34 +++++++++++++++-------------------
1 file changed, 15 insertions(+), 19 deletions(-)
diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c
index 986222efe174..38dd60f0cfcc 100644
--- a/drivers/watchdog/coh901327_wdt.c
+++ b/drivers/watchdog/coh901327_wdt.c
@@ -251,60 +251,56 @@ static int __exit coh901327_remove(struct platform_device *pdev)
static int __init coh901327_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
int ret;
u16 val;
struct resource *res;
- parent = &pdev->dev;
+ parent = dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- virtbase = devm_ioremap_resource(&pdev->dev, res);
+ virtbase = devm_ioremap_resource(dev, res);
if (IS_ERR(virtbase))
return PTR_ERR(virtbase);
- clk = clk_get(&pdev->dev, NULL);
+ clk = clk_get(dev, NULL);
if (IS_ERR(clk)) {
ret = PTR_ERR(clk);
- dev_err(&pdev->dev, "could not get clock\n");
+ dev_err(dev, "could not get clock\n");
return ret;
}
ret = clk_prepare_enable(clk);
if (ret) {
- dev_err(&pdev->dev, "could not prepare and enable clock\n");
+ dev_err(dev, "could not prepare and enable clock\n");
goto out_no_clk_enable;
}
val = readw(virtbase + U300_WDOG_SR);
switch (val) {
case U300_WDOG_SR_STATUS_TIMED_OUT:
- dev_info(&pdev->dev,
- "watchdog timed out since last chip reset!\n");
+ dev_info(dev, "watchdog timed out since last chip reset!\n");
coh901327_wdt.bootstatus |= WDIOF_CARDRESET;
/* Status will be cleared below */
break;
case U300_WDOG_SR_STATUS_NORMAL:
- dev_info(&pdev->dev,
- "in normal status, no timeouts have occurred.\n");
+ dev_info(dev, "in normal status, no timeouts have occurred.\n");
break;
default:
- dev_info(&pdev->dev,
- "contains an illegal status code (%08x)\n", val);
+ dev_info(dev, "contains an illegal status code (%08x)\n", val);
break;
}
val = readw(virtbase + U300_WDOG_D2R);
switch (val) {
case U300_WDOG_D2R_DISABLE_STATUS_DISABLED:
- dev_info(&pdev->dev, "currently disabled.\n");
+ dev_info(dev, "currently disabled.\n");
break;
case U300_WDOG_D2R_DISABLE_STATUS_ENABLED:
- dev_info(&pdev->dev,
- "currently enabled! (disabling it now)\n");
+ dev_info(dev, "currently enabled! (disabling it now)\n");
coh901327_disable();
break;
default:
- dev_err(&pdev->dev,
- "contains an illegal enable/disable code (%08x)\n",
+ dev_err(dev, "contains an illegal enable/disable code (%08x)\n",
val);
break;
}
@@ -319,16 +315,16 @@ static int __init coh901327_probe(struct platform_device *pdev)
goto out_no_irq;
}
- ret = watchdog_init_timeout(&coh901327_wdt, margin, &pdev->dev);
+ ret = watchdog_init_timeout(&coh901327_wdt, margin, dev);
if (ret < 0)
coh901327_wdt.timeout = 60;
- coh901327_wdt.parent = &pdev->dev;
+ coh901327_wdt.parent = dev;
ret = watchdog_register_device(&coh901327_wdt);
if (ret)
goto out_no_wdog;
- dev_info(&pdev->dev, "initialized. timer margin=%d sec\n", margin);
+ dev_info(dev, "initialized. timer margin=%d sec\n", margin);
return 0;
out_no_wdog:
--
2.7.4
next prev parent reply other threads:[~2017-01-04 3:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-04 3:25 [PATCH 1/4] watchdog: coh901327_wdt: Simplify error handling in probe function Guenter Roeck
2017-01-04 3:25 ` [PATCH 2/4] watchdog: coh901327_wdt: Keep clock enabled after loading driver Guenter Roeck
2017-01-09 19:38 ` Linus Walleij
2017-01-04 3:25 ` [PATCH 3/4] watchdog: coh901327_wdt: Use devm_ioremap_resource to map resources Guenter Roeck
2017-01-09 19:39 ` Linus Walleij
2017-01-04 3:25 ` Guenter Roeck [this message]
2017-01-09 19:39 ` [PATCH 4/4] watchdog: coh901327_wdt: Use dev variable instead of pdev->dev Linus Walleij
2017-01-09 19:38 ` [PATCH 1/4] watchdog: coh901327_wdt: Simplify error handling in probe function Linus Walleij
2017-01-09 20:17 ` Guenter Roeck
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