[PATCH 1/6] dt-bindings: regulator: qcom,usb-vbus-regulator: add PMI8998

[taygoth]

The Qualcomm PMI8998 PMIC integrates a USB OTG VBUS boost converter
inside its SMB2 charger block at offset 0x1100. The OTG control
register layout (CMD_OTG at +0x40, OTG_CURRENT_LIMIT_CFG at +0x52,
OTG_CFG at +0x53) matches the PM8150B SMB5 block, so the existing
qcom_usb_vbus-regulator driver can drive it without code changes via
compatible cascade.

Verified by inspecting the downstream qpnp-smb2 driver and reading
live register values on a OnePlus 6T (sdm845-oneplus-fajita) running
mainline Linux.

Signed-off-by: taygoth <taygoth@xxxxxxxxx>
---
 .../devicetree/bindings/regulator/qcom,usb-vbus-regulator.yaml   | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/regulator/qcom,usb-vbus-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom,usb-vbus-regulator.yaml
index fcefc722ee2a..9e2e2c8f9539 100644
--- a/Documentation/devicetree/bindings/regulator/qcom,usb-vbus-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/qcom,usb-vbus-regulator.yaml
@@ -28,6 +28,7 @@ properties:
               - qcom,pm6150-vbus-reg
               - qcom,pm7250b-vbus-reg
               - qcom,pmi632-vbus-reg
+              - qcom,pmi8998-vbus-reg
           - const: qcom,pm8150b-vbus-reg
 
   reg:
-- 
2.47.3