linux-kernel - Re: [PATCH 0/4] usb: dwc2: fix host mode external vbus supply management

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Message-ID: <3AD91E696667BF4BA728303C178E8A63532A5150@am04wembxb.internal.synopsys.com>
Date:   Mon, 10 Sep 2018 10:18:22 +0000
From:   Artur Petrosyan <Arthur.Petrosyan@...opsys.com>
To:     Amelie Delaunay <amelie.delaunay@...com>,
        Minas Harutyunyan <Minas.Harutyunyan@...opsys.com>,
        Felipe Balbi <balbi@...nel.org>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
CC:     "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        Fabrice Gasnier <fabrice.gasnier@...com>
Subject: Re: [PATCH 0/4] usb: dwc2: fix host mode external vbus supply
 management

Hi,

On 9/5/2018 15:41, Amelie Delaunay wrote:
> This patchset fixes and improves host mode external vbus supply management,
> mainly around suspend/resume use cases. It also avoid 'vbus regulator"
> to be requested lots of times upon each call to dwc2_vbus_supply_init(),
> especially when pm runtime is enabled.
> 
> Fabrice Gasnier (4):
>    usb: dwc2: get optional vbus-supply regulator once
>    usb: dwc2: fix a race with external vbus supply
>    usb: dwc2: fix call to vbus supply exit routine, call it unlocked
>    usb: dwc2: fix unbalanced use of external vbus-supply
> 
>   drivers/usb/dwc2/hcd.c      | 45 ++++++++++++++++++++++++++++++++++-----------
>   drivers/usb/dwc2/platform.c |  8 ++++++++
>   2 files changed, 42 insertions(+), 11 deletions(-)
> 
Tested-by: Artur Petrosyan <arturp@...opsys.com>

The patchset has been tested on Synopsys HAPS-DX platform.

Thanks,
Artur