pm24.git/drivers/watchdog, branch v3.5

watchdog: core: fix WDIOC_GETSTATUS return value

2012-06-28T18:40:56Z

In commit 7a87982420e5e126bfefeb42232d1fd92052794e we added a wrapper for the WDIOC_GETSTATUS ioctl call. The code results however in a different behaviour: it returns an error if the driver doesn't support the status operation. This is not according to the API that says that when we don't support the status operation, that we just should return a 0 value. Only when the device isn't there anymore, we should return an error. Signed-off-by: Wim Van Sebroeck

watchdog: hpwdt: Unregister NMI events on exit.

2012-06-28T18:40:31Z

This patch is to unregister for NMI events upon exit. Also we are now making the default setting for allow_kdump enabled. Signed-off-by: Thomas Mingarelli Signed-off-by: Wim Van Sebroeck

watchdog: iTCO_wdt: add platform driver module alias

2012-06-28T18:40:10Z

The recent conversion of iTCO_wdt resulted in the driver no longer getting loaded automatically, since it no longer has a MODULE_DEVICE_TABLE() included. As the lpc_ich driver now creates a platform device, auto-loading can easily be done by having a respective module alias in place. Signed-off-by: Jan Beulich Cc: Aaron Sierra Acked-by: Guenter Roeck Cc: Samuel Ortiz Signed-off-by: Wim Van Sebroeck

Viresh has moved

2012-06-20T21:39:36Z

viresh.kumar@st.com email-id doesn't exist anymore as I have left the company. Replace ST's id with viresh.linux@gmail.com. It also updates .mailmap file to fix address for 'git shortlog' Signed-off-by: Viresh Kumar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

watchdog: iTCO_wdt.c: fix printk format warnings

2012-05-30T06:16:48Z

Fix printk format warnings: drivers/watchdog/iTCO_wdt.c:577:3: warning: format '%04llx' expects type 'long long unsigned int', but argument 2 has type 'resource_size_t' drivers/watchdog/iTCO_wdt.c:594:3: warning: format '%04llx' expects type 'long long unsigned int', but argument 2 has type 'resource_size_t' drivers/watchdog/iTCO_wdt.c:600:2: warning: format '%04llx' expects type 'long long unsigned int', but argument 4 has type 'resource_size_t' Signed-off-by: Randy Dunlap Signed-off-by: Wim Van Sebroeck

watchdog: sp805_wdt: Add clk_{un}prepare support

2012-05-30T05:56:44Z

clk_{un}prepare() routines are required for required on some platforms to run part of clk enable/disable() routines from contexts that can schedule. This patch adds support for these routines in sp805 driver. Signed-off-by: Viresh Kumar Signed-off-by: Wim Van Sebroeck

watchdog: sp805_wdt: convert to watchdog core

2012-05-30T05:56:41Z

This patch converts existing sp805 watchdog driver to use already in place common infrastructure present in watchdog core. With this lot of code goes away. Signed-off-by: Viresh Kumar Signed-off-by: Wim Van Sebroeck

Watchdog: DA9052/53 PMIC watchdog support

2012-05-30T05:56:12Z

This driver adds support for the watchdog functionality provided by the Dialog Semiconductor DA9052 PMIC chip. Tested on samsung smdkv6410 and i.mx53 QS boards. Signed-off-by: Anthony Olech Signed-off-by: Ashish Jangam Signed-off-by: Wim Van Sebroeck

watchdog: Add support for dynamically allocated watchdog_device structs

2012-05-30T05:55:31Z

If a driver's watchdog_device struct is part of a dynamically allocated struct (which it often will be), merely locking the module is not enough, even with a drivers module locked, the driver can be unbound from the device, examples: 1) The root user can unbind it through sysfd 2) The i2c bus master driver being unloaded for an i2c watchdog I will gladly admit that these are corner cases, but we still need to handle them correctly. The fix for this consists of 2 parts: 1) Add ref / unref operations, so that the driver can refcount the struct holding the watchdog_device struct and delay freeing it until any open filehandles referring to it are closed 2) Most driver operations will do IO on the device and the driver should not do any IO on the device after it has been unbound. Rather then letting each driver deal with this internally, it is better to ensure at the watchdog core level that no operations (other then unref) will get called after the driver has called watchdog_unregister_device(). This actually is the bulk of this patch. Signed-off-by: Hans de Goede Signed-off-by: Wim Van Sebroeck

watchdog: Add Locking support

2012-05-30T05:55:23Z

This patch fixes some potential multithreading issues, despite only allowing one process to open the /dev/watchdog device, we can still get called multiple times at the same time, since a program could be using thread, or could share the fd after a fork. This causes 2 potential problems: 1) watchdog_start / open do an unlocked test_n_set / test_n_clear, if these 2 race, the watchdog could be stopped while the active bit indicates it is running or visa versa. 2) Most watchdog_dev drivers probably assume that only one watchdog-op will get called at a time, this is not necessary true atm. Signed-off-by: Hans de Goede Signed-off-by: Wim Van Sebroeck