diff options
| -rw-r--r-- | drivers/watchdog/davinci_wdt.c | 41 |
1 files changed, 16 insertions, 25 deletions
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c index 7daa15df74a5..7b2ee35b5ffd 100644 --- a/drivers/watchdog/davinci_wdt.c +++ b/drivers/watchdog/davinci_wdt.c @@ -191,6 +191,11 @@ static const struct watchdog_ops davinci_wdt_ops = { .restart = davinci_wdt_restart, }; +static void davinci_clk_disable_unprepare(void *data) +{ + clk_disable_unprepare(data); +} + static int davinci_wdt_probe(struct platform_device *pdev) { int ret = 0; @@ -206,15 +211,19 @@ static int davinci_wdt_probe(struct platform_device *pdev) if (IS_ERR(davinci_wdt->clk)) { if (PTR_ERR(davinci_wdt->clk) != -EPROBE_DEFER) - dev_err(&pdev->dev, "failed to get clock node\n"); + dev_err(dev, "failed to get clock node\n"); return PTR_ERR(davinci_wdt->clk); } ret = clk_prepare_enable(davinci_wdt->clk); if (ret) { - dev_err(&pdev->dev, "failed to prepare clock\n"); + dev_err(dev, "failed to prepare clock\n"); return ret; } + ret = devm_add_action_or_reset(dev, davinci_clk_disable_unprepare, + davinci_wdt->clk); + if (ret) + return ret; platform_set_drvdata(pdev, davinci_wdt); @@ -224,7 +233,7 @@ static int davinci_wdt_probe(struct platform_device *pdev) wdd->min_timeout = 1; wdd->max_timeout = MAX_HEARTBEAT; wdd->timeout = DEFAULT_HEARTBEAT; - wdd->parent = &pdev->dev; + wdd->parent = dev; watchdog_init_timeout(wdd, heartbeat, dev); @@ -235,33 +244,16 @@ static int davinci_wdt_probe(struct platform_device *pdev) watchdog_set_restart_priority(wdd, 128); davinci_wdt->base = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(davinci_wdt->base)) { - ret = PTR_ERR(davinci_wdt->base); - goto err_clk_disable; - } + if (IS_ERR(davinci_wdt->base)) + return PTR_ERR(davinci_wdt->base); - ret = watchdog_register_device(wdd); + ret = devm_watchdog_register_device(dev, wdd); if (ret) { dev_err(dev, "cannot register watchdog device\n"); - goto err_clk_disable; + return ret; } return 0; - -err_clk_disable: - clk_disable_unprepare(davinci_wdt->clk); - - return ret; -} - -static int davinci_wdt_remove(struct platform_device *pdev) -{ - struct davinci_wdt_device *davinci_wdt = platform_get_drvdata(pdev); - - watchdog_unregister_device(&davinci_wdt->wdd); - clk_disable_unprepare(davinci_wdt->clk); - - return 0; } static const struct of_device_id davinci_wdt_of_match[] = { @@ -276,7 +268,6 @@ static struct platform_driver platform_wdt_driver = { .of_match_table = davinci_wdt_of_match, }, .probe = davinci_wdt_probe, - .remove = davinci_wdt_remove, }; module_platform_driver(platform_wdt_driver); |