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watchdog: meson: add debug info

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PD#154260: watchdog: meson: add debug info

Change-Id: I98cb723099bc05f721ba8d52002cb724d9c5a978
Signed-off-by: Bo Yang <bo.yang@amlogic.com>
This commit is contained in:
Bo Yang
2017-12-06 15:17:25 +08:00
committed by Jianxin Pan
parent 135e4dae04
commit 8ad4f7756b
1 changed files with 13 additions and 5 deletions
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18
drivers/amlogic/watchdog/meson_wdt.c
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@@ -35,7 +35,7 @@
#include <linux/of_address.h>
#undef pr_fmt
#define pr_fmt(fmt) "aml-wdt: %s: " fmt, __func__
#define pr_fmt(fmt) "meson-watchdog: %s: " fmt, __func__
#define CTRL 0x0
#define CTRL1 0x4
@@ -109,6 +109,7 @@ static int aml_wdt_start(struct watchdog_device *wdog)
if (wdev->boot_queue)
cancel_delayed_work(&wdev->boot_queue);
#endif
dev_info(wdev->dev, "start watchdog\n");
return 0;
}
@@ -119,6 +120,8 @@ static int aml_wdt_stop(struct watchdog_device *wdog)
mutex_lock(&wdev->lock);
disable_watchdog(wdev);
mutex_unlock(&wdev->lock);
dev_info(wdev->dev, "stop watchdog\n");
return 0;
}
@@ -144,6 +147,7 @@ static int aml_wdt_set_timeout(struct watchdog_device *wdog,
wdev->timeout = timeout;
mutex_unlock(&wdev->lock);
dev_info(wdev->dev, "set timeout\n");
return 0;
}
@@ -253,11 +257,13 @@ static int aml_wtd_pm_notify(struct notifier_block *nb, unsigned long event,
if (event == PM_SUSPEND_PREPARE) {
disable_watchdog(wdev);
pr_info("disable watchdog\n");
dev_info(wdev->dev,
"pm_notify: disable watchdog, event = %lu\n", event);
}
if (event == PM_POST_SUSPEND) {
enable_watchdog(wdev);
pr_info("enable watchdog\n");
dev_info(wdev->dev,
"pm_notify: enable watchdog, event = %lu\n", event);
}
return NOTIFY_OK;
}
@@ -271,7 +277,9 @@ static int aml_wtd_reboot_notify(struct notifier_block *nb,
wdev = container_of(nb, struct aml_wdt_dev, reboot_notifier);
if (event == SYS_DOWN || event == SYS_HALT) {
disable_watchdog(wdev);
pr_info("disable watchdog\n");
dev_info(wdev->dev,
"reboot_notify: disable watchdog (event = %lu)\n",
event);
}
if (wdev->reset_watchdog_method == 1)
cancel_delayed_work(&wdev->boot_queue);
@@ -384,7 +392,7 @@ static struct platform_driver aml_wdt_driver = {
.resume = aml_wdt_resume,
.driver = {
.owner = THIS_MODULE,
.name = "aml_wdt",
.name = "meson_wdt",
.of_match_table = aml_wdt_of_match,
},
};