[Letux-kernel] [Internal RFC 12/16] arm: dts: twl4030: add twl4030-regen child
H. Nikolaus Schaller
hns at goldelico.com
Wed Sep 7 20:01:51 CEST 2022
From: Grond <grond66 at riseup.net>
This is needed on some boards (for example, the Pandora), where REGEN is
used to drive external regulators.
Signed-off-by: Grond <grond66 at riseup.net>
---
arch/arm/boot/dts/twl4030.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 93e07c18781b5..42b2047f81824 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -112,6 +112,20 @@ vsim: regulator-vsim {
regulator-max-microvolt = <3000000>;
};
+ regen: regulator-regen {
+ compatible = "ti,twl4030-regen";
+ /*
+ * Since REGEN is technically just a signal that actuates an
+ * external regulator, we do not know what voltage it will
+ * eventually have, or what it's on/off timing should be.
+ * Therefore, disable it here; boards that use it can override
+ * the status to "okay" once they have set the
+ * regulator-{min,max}-microvolt and startup-delay-us
+ * attributes.
+ */
+ status = "disabled";
+ };
+
twl_gpio: gpio {
compatible = "ti,twl4030-gpio";
gpio-controller;
--
2.33.0
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