diff options
| author | Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> | 2011-12-16 19:00:12 +0530 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-05-22 11:01:15 +0200 |
| commit | 8e5d509593b5dd0c3ab78f6af0cc67b0e32c30f6 (patch) | |
| tree | 1512d5838ebbe17f6d0fbc176e1852140bde0d87 | |
| parent | 128d83c8fe266f06a80a8bd2dc55cfe6b3998437 (diff) | |
watchdog: Add 5500 support
ST-Ericsson Linux next: NA
ST-Ericsson ID: 316540
ST-Ericsson FOSS-OUT ID: Trivial
Change-Id: I55bf6d145fe3cf4a1fc8de8c45266832c9769a54
Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/42473
Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
| -rw-r--r-- | drivers/watchdog/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/watchdog/ux500_wdt.c | 23 |
2 files changed, 23 insertions, 4 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 64289e67c39..14e568be223 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -351,7 +351,7 @@ config IMX2_WDT config UX500_WATCHDOG bool "ST-Ericsson Ux500 watchdog" - depends on UX500_SOC_DB8500 + depends on UX500_SOC_DB8500 || UX500_SOC_DB5500 default y help Say Y here to include Watchdog timer support for the @@ -361,7 +361,7 @@ config UX500_WATCHDOG config UX500_WATCHDOG_DEBUG bool "ST-Ericsson Ux500 watchdog DEBUG" - depends on UX500_SOC_DB8500 && DEBUG_FS + depends on (UX500_SOC_DB8500 || UX500_SOC_DB5500) && DEBUG_FS help Say Y here to add various debugfs entries in wdog/ diff --git a/drivers/watchdog/ux500_wdt.c b/drivers/watchdog/ux500_wdt.c index 78c03285be3..52747e59172 100644 --- a/drivers/watchdog/ux500_wdt.c +++ b/drivers/watchdog/ux500_wdt.c @@ -152,9 +152,17 @@ static long ux500_wdt_ioctl(struct file *file, unsigned int cmd, if (get_user(interval, p)) return -EFAULT; - /* 28 bit resolution in ms, becomes 268435.455 s */ - if (interval > 268435 || interval < 0) + if (cpu_is_u8500()) { + /* 28 bit resolution in ms, becomes 268435.455 s */ + if (interval > 268435 || interval < 0) + return -EINVAL; + } else if (cpu_is_u5500()) { + /* 32 bit resolution in ms, becomes 4294967.295 s */ + if (interval > 4294967 || interval < 0) + return -EINVAL; + } else return -EINVAL; + timeout = interval; prcmu_disable_a9wdog(wdog_id); prcmu_load_a9wdog(wdog_id, timeout * 1000); @@ -384,6 +392,11 @@ static int __exit ux500_wdt_remove(struct platform_device *dev) static int ux500_wdt_suspend(struct platform_device *pdev, pm_message_t state) { + if (wdt_en && cpu_is_u5500()) { + prcmu_disable_a9wdog(wdog_id); + return 0; + } + if (wdt_en && !wdt_auto_off) { prcmu_disable_a9wdog(wdog_id); prcmu_config_a9wdog(1, true); @@ -396,6 +409,12 @@ static int ux500_wdt_suspend(struct platform_device *pdev, static int ux500_wdt_resume(struct platform_device *pdev) { + if (wdt_en && cpu_is_u5500()) { + prcmu_load_a9wdog(wdog_id, timeout * 1000); + prcmu_enable_a9wdog(wdog_id); + return 0; + } + if (wdt_en && !wdt_auto_off) { prcmu_disable_a9wdog(wdog_id); prcmu_config_a9wdog(1, wdt_auto_off); |