[PATCH v3 4/6] riscv: dts: sifive unmatched: Expose the FU740 core supply regulator

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Provides monitoring of core voltage and current:
tps544b20-i2c-0-1e
Adapter: i2c-ocores
vout1:       906.00 mV
temp1:        -40.0°C  (high = +125.0°C, crit = +150.0°C)
iout1:         5.06 A  (max = +20.00 A, crit max = +26.00 A)

Signed-off-by: Vincent Pelletier <plr.vincent@xxxxxxxxx>

---
Note: checkpatch.pl complains about undocumented devicetree binding,
which is fixed by:
  https://lore.kernel.org/linux-devicetree/20211116110207.68494-1-krzysztof.kozlowski@xxxxxxxxxxxxx/T/#u

Changes since v2:
- Fix end-of-commit-message separator so change lists do not end up in them.
Changes since v1:
- Added missing "ti," prefix in compatible string.
- Remove trailing "." on subject line.
- Rename tree node.
---
 arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
index 270360b258b7..6e7775fdae32 100644
--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
@@ -51,6 +51,11 @@ &uart1 {
 &i2c0 {
 	status = "okay";
 
+	regulator@1e {
+		compatible = "ti,tps544b20";
+		reg = <0x1e>;
+	};
+
 	temperature-sensor@4c {
 		compatible = "ti,tmp451";
 		reg = <0x4c>;
-- 
2.33.1




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