linux-kernel - [PATCH 0/3] Add and enable USB nodes for ExynosAutov920 SoC

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Message-Id: <20251024114845.2395166-1-pritam.sutar@samsung.com>
Date: Fri, 24 Oct 2025 17:18:42 +0530
From: Pritam Manohar Sutar <pritam.sutar@...sung.com>
To: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
	alim.akhtar@...sung.com
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	rosa.pila@...sung.com, dev.tailor@...sung.com, faraz.ata@...sung.com,
	muhammed.ali@...sung.com, selvarasu.g@...sung.com, pritam.sutar@...sung.com
Subject: [PATCH 0/3] Add and enable USB nodes for ExynosAutov920 SoC

This SoC has 2 USB typeC and 2 typeA ports those are DWC3 DRD
controllers and amoung them, one is USB3.1 DRD combo phy and three
USB2.0 phy controllers. This patchset adds and enables USB and
USB-PHY nodes in dts.

PMIC driver is not implmented yet, we rely on USB LDOs being enabled 
by the bootloader and used dummy regulators for now.

To drive vbus for host mode, it needs GPIO pin to enable vbus regulator.
GPIO expander is present in the dts, we used it to enable the vbus 
regulator using GPIO.

USB ports are configured as OTG, and default mode is configured as
peripheral. These configurations might be changed based on requirements.

This patchset has dependancy on schema and driver implementation[1]
and role switch control from userspace[2] patches.
[1]: https://lore.kernel.org/linux-phy/20251010070912.3758334-1-pritam.sutar@samsung.com/
[2]: https://lore.kernel.org/linux-usb/20251024085455.789555-1-pritam.sutar@samsung.com/

Pritam Manohar Sutar (3):
  arm64: dts: exynos: ExynosAutov920: Add USB and USB-phy nodes
  arm64: dts: exynos: ExynosAutov920: Add regulators for the USB
  arm64: dts: exynos: ExynosAutov920: Enable USB nodes

 .../boot/dts/exynos/exynosautov920-sadk.dts   | 160 +++++++++++++++++
 .../arm64/boot/dts/exynos/exynosautov920.dtsi | 162 ++++++++++++++++++
 2 files changed, 322 insertions(+)

-- 
2.34.1