diff options
| -rw-r--r-- | drivers/watchdog/rtd119x_wdt.c | 42 |
1 files changed, 15 insertions, 27 deletions
diff --git a/drivers/watchdog/rtd119x_wdt.c b/drivers/watchdog/rtd119x_wdt.c index cb17c49f3534..c4cb23d65218 100644 --- a/drivers/watchdog/rtd119x_wdt.c +++ b/drivers/watchdog/rtd119x_wdt.c @@ -95,12 +95,18 @@ static const struct of_device_id rtd119x_wdt_dt_ids[] = { { } }; +static void rtd119x_clk_disable_unprepare(void *data) +{ + clk_disable_unprepare(data); +} + static int rtd119x_wdt_probe(struct platform_device *pdev) { + struct device *dev = &pdev->dev; struct rtd119x_watchdog_device *data; int ret; - data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -108,22 +114,24 @@ static int rtd119x_wdt_probe(struct platform_device *pdev) if (IS_ERR(data->base)) return PTR_ERR(data->base); - data->clk = of_clk_get(pdev->dev.of_node, 0); + data->clk = devm_clk_get(dev, NULL); if (IS_ERR(data->clk)) return PTR_ERR(data->clk); ret = clk_prepare_enable(data->clk); - if (ret) { - clk_put(data->clk); + if (ret) + return ret; + ret = devm_add_action_or_reset(dev, rtd119x_clk_disable_unprepare, + data->clk); + if (ret) return ret; - } data->wdt_dev.info = &rtd119x_wdt_info; data->wdt_dev.ops = &rtd119x_wdt_ops; data->wdt_dev.timeout = 120; data->wdt_dev.max_timeout = 0xffffffff / clk_get_rate(data->clk); data->wdt_dev.min_timeout = 1; - data->wdt_dev.parent = &pdev->dev; + data->wdt_dev.parent = dev; watchdog_stop_on_reboot(&data->wdt_dev); watchdog_set_drvdata(&data->wdt_dev, data); @@ -133,31 +141,11 @@ static int rtd119x_wdt_probe(struct platform_device *pdev) rtd119x_wdt_set_timeout(&data->wdt_dev, data->wdt_dev.timeout); rtd119x_wdt_stop(&data->wdt_dev); - ret = watchdog_register_device(&data->wdt_dev); - if (ret) { - clk_disable_unprepare(data->clk); - clk_put(data->clk); - return ret; - } - - return 0; -} - -static int rtd119x_wdt_remove(struct platform_device *pdev) -{ - struct rtd119x_watchdog_device *data = platform_get_drvdata(pdev); - - watchdog_unregister_device(&data->wdt_dev); - - clk_disable_unprepare(data->clk); - clk_put(data->clk); - - return 0; + return devm_watchdog_register_device(dev, &data->wdt_dev); } static struct platform_driver rtd119x_wdt_driver = { .probe = rtd119x_wdt_probe, - .remove = rtd119x_wdt_remove, .driver = { .name = "rtd1295-watchdog", .of_match_table = rtd119x_wdt_dt_ids, |