diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2017-01-04 04:21:37 +0100 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2017-02-24 23:00:23 +0100 |
| commit | 9e14375880c4a64e190b296023f52e987cb9d33e (patch) | |
| tree | c902009a19079442048d1235b12e90d99f5489d5 | |
| parent | watchdog: coh901327_wdt: Use devm_ioremap_resource to map resources (diff) | |
| download | linux-9e14375880c4a64e190b296023f52e987cb9d33e.tar.xz linux-9e14375880c4a64e190b296023f52e987cb9d33e.zip | |
watchdog: coh901327_wdt: Use dev variable instead of pdev->dev
Use a local dev variable instead of dereferencing pdev->dev several
times in the probe function to make the code easier to read.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| -rw-r--r-- | drivers/watchdog/coh901327_wdt.c | 34 |
1 files 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: |