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path: root/drivers/watchdog/ath79_wdt.c (follow)
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2014-10-20watchdog: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-06-10watchdog: ath79_wdt: switch to clk_prepare/clk_disableGabor Juhos1-3/+3
Replace clk_enable() and clk_disable() calls with clk_prepare_enable() and clk_disable_unprepare() to get ready for the migration to the common clock framework. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2014-06-10watchdog: ath79_wdt: avoid spurious restarts on AR934xGabor Juhos1-0/+10
On some AR934x based systems, where the frequency of the AHB bus is relatively high, the built-in watchdog causes a spurious restart when it gets enabled. The possible cause of these restarts is that the timeout value written into the TIMER register does not reaches the hardware in time. Add an explicit delay into the ath79_wdt_enable function to avoid the spurious restarts. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Cc: <stable@vger.kernel.org>
2014-03-31watchdog: delete non-required instances of include <linux/init.h>Paul Gortmaker1-1/+0
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Cc: linux-watchdog@vger.kernel.org
2013-11-17watchdog: Get rid of MODULE_ALIAS_MISCDEV statementsJean Delvare1-1/+0
I just can't find any value in MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) and MODULE_ALIAS_MISCDEV(TEMP_MINOR) statements. Either the device is enumerated and the driver already has a module alias (e.g. PCI, USB etc.) that will get the right driver loaded automatically. Or the device is not enumerated and loading its driver will lead to more or less intrusive hardware poking. Such hardware poking should be limited to a bare minimum, so the user should really decide which drivers should be tried and in what order. Trying them all in arbitrary order can't do any good. On top of that, loading that many drivers at once bloats the kernel log. Also many drivers will stay loaded afterward, bloating the output of "lsmod" and wasting memory. Some modules (cs5535_mfgpt which gets loaded as a dependency) can't even be unloaded! If defining char-major-10-130 is needed then it should happen in user-space. Signed-off-by: Jean Delvare <jdelvare@suse.de> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Mike Frysinger <vapier.adi@gmail.com> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Zwane Mwaikambo <zwane@arm.linux.org.uk> Cc: Jim Cromie <jim.cromie@gmail.com>
2013-05-18drivers/watchdog: don't check resource with devm_ioremap_resourceWolfram Sang1-5/+0
devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-05-09watchdog: Convert to devm_ioremap_resource()Sachin Kamat1-5/+3
Use the newly introduced devm_ioremap_resource() instead of devm_request_and_ioremap() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages; so all explicit error messages can be removed from the failure code paths. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: Gabor Juhos <juhosg@openwrt.org> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01watchdog: ath79_wdt: add device tree matchingGabor Juhos1-0/+11
Cc: Grant Likely <grant.likely@secretlab.ca> Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01watchdog: ath79_wdt: get register base from platform device's resourcesGabor Juhos1-10/+38
The ath79_wdt driver uses a fixed memory address currently. Although this is working with each currently supported SoCs, but this may change in the future. Additionally, the driver includes platform specific header files in order to be able to get the memory base of the watchdog device. The patch adds a memory resource to the platform device, and converts the driver to get the base address of the watchdog device from that. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-03-01watchdog: ath79_wdt: convert to use devm_clk_getGabor Juhos1-5/+2
Use the managed version of clk_get. This allows to simplify the probe/remove functions a bit. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-12-19watchdog: ath79_wdt: convert to use module_platform_driverGabor Juhos1-11/+2
This makes the code a bit smaller by getting rid of some boilerplate code. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-11-28watchdog: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28watchdog: remove use of __devinitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28watchdog: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-27watchdog: nowayout is boolWim Van Sebroeck1-2/+2
nowayout is actually a boolean value. So make it bool for all watchdog device drivers. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27watchdog: Use pr_<fmt> and pr_<level>Joe Perches1-2/+3
Use the current logging styles. Make sure all output has a prefix. Add missing newlines. Remove now unnecessary PFX, NAME, and miscellaneous other #defines. Coalesce formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-01-06watchdog: ath79_wdt: flush register writesGabor Juhos1-0/+6
The watchdog register writes required to have a flush in order to commit the values to the register. Without the flush, the driver not function correctly on AR934X SoCs. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12watchdog: add driver for the Atheros AR71XX/AR724X/AR913X SoCsGabor Juhos1-0/+305
This patch adds a driver for the built-in hardware watchdog device of the Atheros AR71XX/AR724X/AR913X SoCs. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Imre Kaloz <kaloz@openwrt.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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