summaryrefslogtreecommitdiff
path: root/arch/arm/boot/dts/omap3-n900.dts
diff options
context:
space:
mode:
authorTony Lindgren <tony@atomide.com>2014-06-16 12:10:22 +0400
committerTony Lindgren <tony@atomide.com>2014-06-16 12:10:22 +0400
commit9188883fd66e9809e93e06d5bbd49cf99a6cdbee (patch)
tree7173223ddab507c448c4217ae05cae93e78558d2 /arch/arm/boot/dts/omap3-n900.dts
parent7171511eaec5bf23fb06078f59784a3a0626b38f (diff)
downloadlinux-9188883fd66e9809e93e06d5bbd49cf99a6cdbee.tar.xz
ARM: dts: Enable twl4030 off-idle configuration for selected omaps
N900 now seems to shut down the external oscillator when hitting off-idle. And Beagle XM seems to have OSC_EN pin connected to allow shutting down the oscillator looking at the schematics. The oscillator output is cut off in off-idle and you can monitor it from R56 on the bottom side of the board near the power jack. Note that for beagle we need to also enable the UART wake-up event, the others have that enabled in earlier patches. OMAP37XX EVM (TMDSEVM3730) does not seem to have twl4030 clken pin connected, so there is no point trying to enable shutting down of the oscillator on it for the extra latency it adds. Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/omap3-n900.dts')
-rw-r--r--arch/arm/boot/dts/omap3-n900.dts5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index ae8ae3f4f9bf..1fe45d1f75ec 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -351,6 +351,11 @@
compatible = "ti,twl4030-audio";
ti,enable-vibra = <1>;
};
+
+ twl_power: power {
+ compatible = "ti,twl4030-power-n900", "ti,twl4030-power-idle-osc-off";
+ ti,use_poweroff;
+ };
};
&twl_keypad {