Messages in this thread |  | | Date | Mon, 18 Nov 2013 21:16:13 -0800 | From | Guenter Roeck <> | Subject | Re: [PATCH 5/6] watchdog: davinci: reuse driver for keystone arch |
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On 11/18/2013 09:18 AM, Ivan Khoronzhuk wrote: > The keystone arch use the same IP watchdog, so add "ti,keystone-wdt" > compatible and correct identity. > > The Keystone arch is using clocks in DT and source clock for watchdog > has to be specified, so add this to binding. > > Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> > Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> --- > .../devicetree/bindings/watchdog/davinci-wdt.txt | 11 +++++++++-- > drivers/watchdog/Kconfig | 4 ++-- > drivers/watchdog/davinci_wdt.c | 3 ++- > 3 files changed, 13 insertions(+), 5 deletions(-) > > diff --git a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt > index e450134..0f1aa99 100644 > --- a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt > +++ b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt > @@ -1,16 +1,23 @@ > -DaVinci Watchdog Timer (WDT) Controller > +Texas Instruments DaVinci/Keystone Watchdog Timer (WDT) Controller > > Required properties: > -- compatible : Should be "ti,davinci-wdt" > +- compatible : Should be "ti,davinci-wdt" or "ti,keystone-wdt" > - reg : Should contain WDT registers location and length > +- clocks : phandle reference to the controller clock. > + Required only for Keystone arch. See clock-bindings.txt > > Optional properties: > - timeout-sec : Contains the watchdog timeout in seconds > > +Documentation: > +Davinci DM646x - http://www.ti.com/lit/ug/spruer5b/spruer5b.pdf > +Keystone - http://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf > + > Examples: > > wdt: wdt@2320000 { > compatible = "ti,davinci-wdt"; > reg = <0x02320000 0x80>; > timeout-sec = <30>; > + clocks = <&clkwdtimer0>; > }; > diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig > index d7db13d..addfc2c 100644 > --- a/drivers/watchdog/Kconfig > +++ b/drivers/watchdog/Kconfig > @@ -270,12 +270,12 @@ config IOP_WATCHDOG > > config DAVINCI_WATCHDOG > tristate "DaVinci watchdog" > - depends on ARCH_DAVINCI > + depends on ARCH_DAVINCI || ARCH_KEYSTONE > select WATCHDOG_CORE > select WATCHDOG_NOWAYOUT > help > Say Y here if to include support for the watchdog timer > - in the DaVinci DM644x/DM646x processors. > + in the DaVinci DM644x/DM646x or Keystone processors. > To compile this driver as a module, choose M here: the > module will be called davinci_wdt. > > diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c > index 55deaf8..a6d365a 100644 > --- a/drivers/watchdog/davinci_wdt.c > +++ b/drivers/watchdog/davinci_wdt.c > @@ -143,7 +143,7 @@ static unsigned int davinci_wdt_get_timeleft(struct watchdog_device *wdd) > > static const struct watchdog_info davinci_wdt_info = { > .options = WDIOF_KEEPALIVEPING, > - .identity = "DaVinci Watchdog", > + .identity = "DaVinci/Keystone Watchdog", > }; > > static const struct watchdog_ops davinci_wdt_ops = { > @@ -212,6 +212,7 @@ static int davinci_wdt_remove(struct platform_device *pdev) > > static const struct of_device_id davinci_wdt_of_match[] = { > { .compatible = "ti,davinci-wdt", }, > + { .compatible = "ti,keystone-wdt", }, > {}, > }; > MODULE_DEVICE_TABLE(of, davinci_wdt_of_match); >
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