linux-kernel - [PATCH 0/3] ARM: dts: imx: add phy-3p0-supply for i.MX6 series

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Message-Id: <20241126-v6-12-topic-imx-3p0-regulator-v1-0-c618ed111c75@pengutronix.de>
Date: Tue, 26 Nov 2024 10:22:12 +0100
From: Stefan Kerkmann <s.kerkmann@...gutronix.de>
To: Shawn Guo <shawnguo@...nel.org>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Stefan Kerkmann <s.kerkmann@...gutronix.de>
Subject: [PATCH 0/3] ARM: dts: imx: add phy-3p0-supply for i.MX6 series

The integrated usb phys are supplied by the 3p0 regulator, which has a
voltage range of 2.625V to 3.4V. Thus the min and max values are
corrected and the regulator added as a proper supply for the usb phys.

This fixes the following warnings during the probe of the mxs_phy
driver:

mxs_phy 20c9000.usbphy: supply phy-3p0 not found, using dummy regulator
mxs_phy 20ca000.usbphy: supply phy-3p0 not found, using dummy regulator

The regulator handling was introduced by commit `966d73152078 (usb: phy:
mxs: enable regulator phy-3p0 to improve signal qualilty, 2024-07-26)`.

I have consulted the reference manuals for the affected SoCs but only
tested the changes on an actual i.MX6Q SoC.

Signed-off-by: Stefan Kerkmann <s.kerkmann@...gutronix.de>
---
Stefan Kerkmann (3):
      ARM: dts: imx6qdl: add phy-3p0-supply to usb phys
      ARM: dts: imx6sl: add phy-3p0-supply to usb phys
      ARM: dts: imx6sx: add phy-3p0-supply to usb phys

 arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi | 6 ++++--
 arch/arm/boot/dts/nxp/imx/imx6sl.dtsi  | 6 ++++--
 arch/arm/boot/dts/nxp/imx/imx6sx.dtsi  | 6 ++++--
 3 files changed, 12 insertions(+), 6 deletions(-)
---
base-commit: 7eef7e306d3c40a0c5b9ff6adc9b273cc894dbd5
change-id: 20241126-v6-12-topic-imx-3p0-regulator-440d5a25a980

Best regards,
-- 
Stefan Kerkmann <s.kerkmann@...gutronix.de>