[PATCH 04/16] arm: dts: omap3pandora: Populate DT data for the TWL4030's REGEN regulator

[H. Nikolaus Schaller]

From: Grond <grond66@xxxxxxxxxx>

On the Pandora, REGEN is used to enable TPS61029DRC external regulator
which runs a 5V power rail. The 5ms startup delay is taken from Pandora's
3.2 kernel, where it is labeled as a "guess". So it may be possible to
activate the regulator faster.

On Pandora CC units, this regulator is used as the input to the LCD power
supply. Therefore, problems are likely to arise if the regulator is ever
disabled, so we add the regulator-always-on property to compensate.

Signed-off-by: Grond <grond66@xxxxxxxxxx>
Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
---
 arch/arm/boot/dts/ti/omap/omap3-pandora-common.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/ti/omap/omap3-pandora-common.dtsi b/arch/arm/boot/dts/ti/omap/omap3-pandora-common.dtsi
index 06c5b23589991..a0116823ffdef 100644
--- a/arch/arm/boot/dts/ti/omap/omap3-pandora-common.dtsi
+++ b/arch/arm/boot/dts/ti/omap/omap3-pandora-common.dtsi
@@ -486,6 +486,14 @@ &vsim {
 	regulator-always-on;
 };
 
+&regen {
+	regulator-min-microvolt = <5000000>;
+	regulator-max-microvolt = <5000000>;
+	startup-delay-us = <5000>;
+	regulator-always-on;
+	status = "okay";
+};
+
 &i2c2 {
 	clock-frequency = <100000>;
 	/* no clients so we should disable clock */
-- 
2.50.1 (Apple Git-155)