[PATCH v3 2/7] arm64: dts: ti: am68-sk: Fix regulator hierarchy

From: Yemike Abhilash Chandra
Date: Tue Apr 15 2025 - 07:14:57 EST


Update the vin-supply of the TLV71033 regulator from LM5141 (vsys_3v3) to
LM61460 (vsys_5v0) to match the schematics. Add a fixed regulator node for
the LM61460 5V supply to support this change.

AM68-SK schematics: https://www.ti.com/lit/zip/sprr463
Fixes: a266c180b398 ("arm64: dts: ti: k3-am68-sk: Add support for AM68 SK base board")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@xxxxxx>
Reviewed-by: Neha Malcom Francis <n-francis@xxxxxx>
Reviewed-by: Udit Kumar <u-kumar1@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
index 11522b36e0ce..5fa70a874d7b 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
@@ -44,6 +44,17 @@ vusb_main: regulator-vusb-main5v0 {
regulator-boot-on;
};

+ vsys_5v0: regulator-vsys5v0 {
+ /* Output of LM61460 */
+ compatible = "regulator-fixed";
+ regulator-name = "vsys_5v0";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ vin-supply = <&vusb_main>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
vsys_3v3: regulator-vsys3v3 {
/* Output of LM5141 */
compatible = "regulator-fixed";
@@ -76,7 +87,7 @@ vdd_sd_dv: regulator-tlv71033 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
- vin-supply = <&vsys_3v3>;
+ vin-supply = <&vsys_5v0>;
gpios = <&main_gpio0 49 GPIO_ACTIVE_HIGH>;
states = <1800000 0x0>,
<3300000 0x1>;
--
2.34.1