On Thu, Aug 25, 2016 at 01:19:12PM +0200, Marcin Niestroj wrote: > Support configuration of ext_wakeup sources. This patch makes it > possible to enable ext_wakeup and set it's polarity, depending on board > configuration. AM335x's dedicated PMIC (tps65217) uses ext_wakeup to > notify about power-button presses. Handling power-button presses enables > to recover from RTC-only power states correctly. > > Signed-off-by: Marcin Niestroj <m.niestroj@xxxxxxxxxxxxxxxx> > --- > Hi, > > This is a total reimplementation, so it is not based on any of the previos > patch versions. This patch adds support for ext_wakeup using generic pinconf > device-tree bindings, with one added "ti,input-polarity" custom property. > This approach has been suggested by Tony and Grygorii in [1]. > > Patch was developed on 4.6, rebased on 4.8-rc3, tested using chiliBoard. > > [1] http://www.spinics.net/lists/devicetree/msg131516.html > > Documentation/devicetree/bindings/rtc/rtc-omap.txt | 21 +++ > drivers/rtc/Kconfig | 1 + > drivers/rtc/rtc-omap.c | 167 ++++++++++++++++++++- > 3 files changed, 181 insertions(+), 8 deletions(-) > > diff --git a/Documentation/devicetree/bindings/rtc/rtc-omap.txt b/Documentation/devicetree/bindings/rtc/rtc-omap.txt > index bf7d11a..5d18373 100644 > --- a/Documentation/devicetree/bindings/rtc/rtc-omap.txt > +++ b/Documentation/devicetree/bindings/rtc/rtc-omap.txt > @@ -18,6 +18,18 @@ Optional properties: > through pmic_power_en > - clocks: Any internal or external clocks feeding in to rtc > - clock-names: Corresponding names of the clocks > +- pinctrl-0: a phandle pointing to the pin settings for the device > +- pinctrl-names: should be "default" > + > +Optional subnodes: > +- generic pinctrl node > + > +Required pinctrl subnodes properties: > +- pins - Names of ext_wakeup pins to configure > + > +Optional pinctrl subnodes properties: > +- input-enable - Enables ext_wakeup > +- ti,input-polarity - GPIO_ACTIVE_LOW or GPIO_ACTIVE_HIGH depending board This is not a GPIO, so don't use GPIO defines. Just make this boolean with not present ideally being the more common case. > Example: > > @@ -30,4 +42,13 @@ rtc@1c23000 { > system-power-controller; > clocks = <&clk_32k_rtc>, <&clk_32768_ck>; > clock-names = "ext-clk", "int-clk"; > + > + pinctrl-0 = <&ext_wakeup>; > + pinctrl-names = "default"; > + > + ext_wakeup: ext_wakeup { Use '-', not '_' in node names. > + pins = "ext_wakeup0"; > + input-enable; > + ti,input-polarity = <GPIO_ACTIVE_LOW>; > + }; > }; -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
