diff options
Diffstat (limited to 'drivers/watchdog/ts4800_wdt.c')
| -rw-r--r-- | drivers/watchdog/ts4800_wdt.c | 33 |
1 files changed, 11 insertions, 22 deletions
diff --git a/drivers/watchdog/ts4800_wdt.c b/drivers/watchdog/ts4800_wdt.c index 89843b16b04a..9dc6d7f45806 100644 --- a/drivers/watchdog/ts4800_wdt.c +++ b/drivers/watchdog/ts4800_wdt.c @@ -108,7 +108,8 @@ static const struct watchdog_info ts4800_wdt_info = { static int ts4800_wdt_probe(struct platform_device *pdev) { - struct device_node *np = pdev->dev.of_node; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; struct device_node *syscon_np; struct watchdog_device *wdd; struct ts4800_wdt *wdt; @@ -117,18 +118,18 @@ static int ts4800_wdt_probe(struct platform_device *pdev) syscon_np = of_parse_phandle(np, "syscon", 0); if (!syscon_np) { - dev_err(&pdev->dev, "no syscon property\n"); + dev_err(dev, "no syscon property\n"); return -ENODEV; } ret = of_property_read_u32_index(np, "syscon", 1, ®); if (ret < 0) { - dev_err(&pdev->dev, "no offset in syscon\n"); + dev_err(dev, "no offset in syscon\n"); return ret; } /* allocate memory for watchdog struct */ - wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL); + wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL); if (!wdt) return -ENOMEM; @@ -137,13 +138,13 @@ static int ts4800_wdt_probe(struct platform_device *pdev) wdt->regmap = syscon_node_to_regmap(syscon_np); of_node_put(syscon_np); if (IS_ERR(wdt->regmap)) { - dev_err(&pdev->dev, "cannot get parent's regmap\n"); + dev_err(dev, "cannot get parent's regmap\n"); return PTR_ERR(wdt->regmap); } /* Initialize struct watchdog_device */ wdd = &wdt->wdd; - wdd->parent = &pdev->dev; + wdd->parent = dev; wdd->info = &ts4800_wdt_info; wdd->ops = &ts4800_wdt_ops; wdd->min_timeout = ts4800_wdt_map[0].timeout; @@ -151,7 +152,7 @@ static int ts4800_wdt_probe(struct platform_device *pdev) watchdog_set_drvdata(wdd, wdt); watchdog_set_nowayout(wdd, nowayout); - watchdog_init_timeout(wdd, 0, &pdev->dev); + watchdog_init_timeout(wdd, 0, dev); /* * As this watchdog supports only a few values, ts4800_wdt_set_timeout @@ -169,31 +170,20 @@ static int ts4800_wdt_probe(struct platform_device *pdev) */ ts4800_wdt_stop(wdd); - ret = watchdog_register_device(wdd); + ret = devm_watchdog_register_device(dev, wdd); if (ret) { - dev_err(&pdev->dev, - "failed to register watchdog device\n"); + dev_err(dev, "failed to register watchdog device\n"); return ret; } platform_set_drvdata(pdev, wdt); - dev_info(&pdev->dev, - "initialized (timeout = %d sec, nowayout = %d)\n", + dev_info(dev, "initialized (timeout = %d sec, nowayout = %d)\n", wdd->timeout, nowayout); return 0; } -static int ts4800_wdt_remove(struct platform_device *pdev) -{ - struct ts4800_wdt *wdt = platform_get_drvdata(pdev); - - watchdog_unregister_device(&wdt->wdd); - - return 0; -} - static const struct of_device_id ts4800_wdt_of_match[] = { { .compatible = "technologic,ts4800-wdt", }, { }, @@ -202,7 +192,6 @@ MODULE_DEVICE_TABLE(of, ts4800_wdt_of_match); static struct platform_driver ts4800_wdt_driver = { .probe = ts4800_wdt_probe, - .remove = ts4800_wdt_remove, .driver = { .name = "ts4800_wdt", .of_match_table = ts4800_wdt_of_match, |