linux-kernel - [PATCH v1 0/2] external ulpi vbus control

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Date: Fri, 31 May 2024 08:04:30 +0100
From: Conor Dooley <conor.dooley@...rochip.com>
To: <linux-usb@...r.kernel.org>
CC: <conor@...nel.org>, <conor.dooley@...rochip.com>, Daire McNamara
	<daire.mcnamara@...rochip.com>, Greg Kroah-Hartman
	<gregkh@...uxfoundation.org>, Rob Herring <robh@...nel.org>, "Krzysztof
 Kozlowski" <krzysztof.kozlowski+dt@...aro.org>, Bin Liu <b-liu@...com>,
	<linux-riscv@...ts.infradead.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH v1 0/2] external ulpi vbus control

A customer sent me a patch adding a dt property to enable external vbus
control as their phy didn't support it*. I was surprised to see that none
of the other musb drivers made any use of this, but there is handling
in the musb core for it - made me feel like I was missing something as
to why it was not used by other drivers.

I've vendor prefixed the property for now, but I figure there may well
be a bunch of other potential users since this isn't just an musb thing,
given that there's a snps,ulpi-ext-vbus-drv used by an xHCI IP.

This is my third attempt to send these patches. I cannot find them on
lore from either of my previous attempts, so I'm gonna treat this as
v1. I think must've tried to send it from my kernel.org account from
Microchip's corp network and that failed. Either way, apologies if this
is #3 you've got from me..

* they didn't want to be identified, but said it was okay to post.

CC: Conor Dooley <conor.dooley@...rochip.com>
CC: Daire McNamara <daire.mcnamara@...rochip.com>
CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC: Rob Herring <robh@...nel.org>
CC: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC: Bin Liu <b-liu@...com>
CC: linux-riscv@...ts.infradead.org
CC: linux-usb@...r.kernel.org
CC: devicetree@...r.kernel.org
CC: linux-kernel@...r.kernel.org

Conor Dooley (2):
  dt-bindings: musb: mpfs: add ULPI external vbus support
  usb: musb: mpfs: detect UPLI external vbus control requirement from DT

 .../devicetree/bindings/usb/microchip,mpfs-musb.yaml       | 7 +++++++
 drivers/usb/musb/mpfs.c                                    | 2 ++
 2 files changed, 9 insertions(+)

-- 
2.43.2