diff options
| author | Hauke Mehrtens <hauke@hauke-m.de> | 2012-12-05 18:46:08 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-12-06 14:58:58 -0500 |
| commit | bde327eff8a722df1198df9b14464f84f1adfb65 (patch) | |
| tree | dde6282acfa1957a4fa310540a9206aeba277d57 /drivers/ssb/embedded.c | |
| parent | 9f640a6376e54fa9ae834c32cbe92cefeec970dc (diff) | |
| download | linux-bde327eff8a722df1198df9b14464f84f1adfb65.tar.bz2 | |
ssb: register watchdog driver
Register the watchdog driver to the system if it is a SoC. Using the
watchdog on a non SoC device, like a PCI card, will make the PCI
card die when the timeout expired, but starting it again is not
supported by ssb.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/ssb/embedded.c')
| -rw-r--r-- | drivers/ssb/embedded.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/ssb/embedded.c b/drivers/ssb/embedded.c index 9ef124f9ee2d..bb18d76f9f2c 100644 --- a/drivers/ssb/embedded.c +++ b/drivers/ssb/embedded.c @@ -4,11 +4,13 @@ * * Copyright 2005-2008, Broadcom Corporation * Copyright 2006-2008, Michael Buesch <m@bues.ch> + * Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de> * * Licensed under the GNU/GPL. See COPYING for details. */ #include <linux/export.h> +#include <linux/platform_device.h> #include <linux/ssb/ssb.h> #include <linux/ssb/ssb_embedded.h> #include <linux/ssb/ssb_driver_pci.h> @@ -32,6 +34,39 @@ int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks) } EXPORT_SYMBOL(ssb_watchdog_timer_set); +int ssb_watchdog_register(struct ssb_bus *bus) +{ + struct bcm47xx_wdt wdt = {}; + struct platform_device *pdev; + + if (ssb_chipco_available(&bus->chipco)) { + wdt.driver_data = &bus->chipco; + wdt.timer_set = ssb_chipco_watchdog_timer_set_wdt; + wdt.timer_set_ms = ssb_chipco_watchdog_timer_set_ms; + wdt.max_timer_ms = bus->chipco.max_timer_ms; + } else if (ssb_extif_available(&bus->extif)) { + wdt.driver_data = &bus->extif; + wdt.timer_set = ssb_extif_watchdog_timer_set_wdt; + wdt.timer_set_ms = ssb_extif_watchdog_timer_set_ms; + wdt.max_timer_ms = SSB_EXTIF_WATCHDOG_MAX_TIMER_MS; + } else { + return -ENODEV; + } + + pdev = platform_device_register_data(NULL, "bcm47xx-wdt", + bus->busnumber, &wdt, + sizeof(wdt)); + if (IS_ERR(pdev)) { + ssb_dprintk(KERN_INFO PFX + "can not register watchdog device, err: %li\n", + PTR_ERR(pdev)); + return PTR_ERR(pdev); + } + + bus->watchdog = pdev; + return 0; +} + u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask) { unsigned long flags; |