diff options
| author | Marcin Niestroj <m.niestroj@grinn-global.com> | 2016-09-16 09:26:28 (GMT) |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-09-21 19:46:04 (GMT) |
| commit | 97ea1906b3c2201273ea6bb40c43c611c056ddb3 (patch) | |
| tree | 71548d748629fe2f6b63e2ea9b92b007a6bbdeb9 /Documentation | |
| parent | 970fc7f4afd52d638d88aeda985ea03ccd33acee (diff) | |
| download | linux-97ea1906b3c2201273ea6bb40c43c611c056ddb3.tar.xz | |
rtc: omap: Support ext_wakeup configuration
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@grinn-global.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/rtc-omap.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rtc/rtc-omap.txt b/Documentation/devicetree/bindings/rtc/rtc-omap.txt index bf7d11a..bee41f9 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,active-high - Set input active high (by default active low) 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 { + pins = "ext_wakeup0"; + input-enable; + ti,active-high; + }; }; |