diff options
Diffstat (limited to 'drivers/watchdog/pnx4008_wdt.c')
| -rw-r--r-- | drivers/watchdog/pnx4008_wdt.c | 48 |
1 files changed, 12 insertions, 36 deletions
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c index 8e261799c84e..87a44a5675a1 100644 --- a/drivers/watchdog/pnx4008_wdt.c +++ b/drivers/watchdog/pnx4008_wdt.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/char/watchdog/pnx4008_wdt.c * @@ -11,10 +12,6 @@ * 2005-2006 (c) MontaVista Software, Inc. * * (C) 2012 Wolfram Sang, Pengutronix - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -33,7 +30,6 @@ #include <linux/of.h> #include <linux/delay.h> #include <linux/reboot.h> -#include <mach/hardware.h> /* WatchDog Timer - Chapter 23 Page 207 */ @@ -185,52 +181,33 @@ static struct watchdog_device pnx4008_wdd = { static int pnx4008_wdt_probe(struct platform_device *pdev) { - struct resource *r; + struct device *dev = &pdev->dev; int ret = 0; - watchdog_init_timeout(&pnx4008_wdd, heartbeat, &pdev->dev); + watchdog_init_timeout(&pnx4008_wdd, heartbeat, dev); - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - wdt_base = devm_ioremap_resource(&pdev->dev, r); + wdt_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(wdt_base)) return PTR_ERR(wdt_base); - wdt_clk = devm_clk_get(&pdev->dev, NULL); + wdt_clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(wdt_clk)) return PTR_ERR(wdt_clk); - ret = clk_prepare_enable(wdt_clk); - if (ret) - return ret; - pnx4008_wdd.bootstatus = (readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ? WDIOF_CARDRESET : 0; - pnx4008_wdd.parent = &pdev->dev; + pnx4008_wdd.parent = dev; watchdog_set_nowayout(&pnx4008_wdd, nowayout); watchdog_set_restart_priority(&pnx4008_wdd, 128); - pnx4008_wdt_stop(&pnx4008_wdd); /* disable for now */ - - ret = watchdog_register_device(&pnx4008_wdd); - if (ret < 0) { - dev_err(&pdev->dev, "cannot register watchdog device\n"); - goto disable_clk; - } - - dev_info(&pdev->dev, "heartbeat %d sec\n", pnx4008_wdd.timeout); + if (readl(WDTIM_CTRL(wdt_base)) & COUNT_ENAB) + set_bit(WDOG_HW_RUNNING, &pnx4008_wdd.status); - return 0; - -disable_clk: - clk_disable_unprepare(wdt_clk); - return ret; -} - -static int pnx4008_wdt_remove(struct platform_device *pdev) -{ - watchdog_unregister_device(&pnx4008_wdd); + ret = devm_watchdog_register_device(dev, &pnx4008_wdd); + if (ret < 0) + return ret; - clk_disable_unprepare(wdt_clk); + dev_info(dev, "heartbeat %d sec\n", pnx4008_wdd.timeout); return 0; } @@ -249,7 +226,6 @@ static struct platform_driver platform_wdt_driver = { .of_match_table = of_match_ptr(pnx4008_wdt_match), }, .probe = pnx4008_wdt_probe, - .remove = pnx4008_wdt_remove, }; module_platform_driver(platform_wdt_driver); |