linux-kernel - [PATCH 0/3] Add PMI8998 VBUS Regulator Support v2

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Message-ID: <20250212010744.2554574-1-james.a.macinnes@gmail.com>
Date: Tue, 11 Feb 2025 17:07:41 -0800
From: "James A. MacInnes" <james.a.macinnes@...il.com>
To: linux-arm-msm@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	andersson@...nel.org,
	konradybcio@...nel.org,
	quic_wcheng@...cinc.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	lgirdwood@...il.com,
	broonie@...nel.org,
	"James A. MacInnes" <james.a.macinnes@...il.com>
Subject: [PATCH 0/3] Add PMI8998 VBUS Regulator Support v2

Greetings,

Thank you all for your feedback. I have integrated your recommendations
into this revised patch series (v2); please disregard the previous thread.

Summary of Changes:
- Patch 1/3: Updates the Device Tree Schema bindings to include
  "qcom,pmi8998-vbus-reg" for PMI8998 support.
- Patch 2/3: Extends the Qualcomm USB VBUS regulator driver to support
  PMI8998, dynamically configuring the regulator based on the PMIC type.
- Patch 3/3: Adds the VBUS regulator node to pmi8998.dtsi, enabling
  USB Type-C VBUS support.

Motivation:
To enable VBUS operation on the SDM845 platform PMI8998 PMIC.

Kernel Version & Testing:
- These patches were developed and tested on Linux 6.13.
- Attempting to run Linux 6.14-rc2 on our Lantronix SOM resulted in a
  hard crash, making it unsuitable for validation.
- Validation was performed using a modified device tree, confirming proper
  regulator configuration.
- No regressions were observed on existing PMIC configurations.

Next Steps:
If there are any suggestions or required changes, please let me know.
I will be happy to revise and address any concerns.

Thanks again,
James A. MacInnes
james.a.macinnes@...il.com


James A. MacInnes (3):
  regulator: qcom_usb_vbus: Update DTS binding for PMI8998 support
  regulator: qcom_usb_vbus: Add support for PMI8998 VBUS
  arm64: boot: dts: pmi8998.dtsi: Add VBUS regulator node

 .../regulator/qcom,usb-vbus-regulator.yaml    |  1 +
 arch/arm64/boot/dts/qcom/pmi8998.dtsi         |  6 +++
 drivers/regulator/qcom_usb_vbus-regulator.c   | 38 ++++++++++++++++---
 3 files changed, 40 insertions(+), 5 deletions(-)

-- 
2.43.0