linux-kernel - Re: [PATCH 0/3] usb: meson: fix shared reset control use

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Date:   Mon, 30 Nov 2020 16:05:24 -0800
From:   Kevin Hilman <khilman@...libre.com>
To:     Amjad Ouled-Ameur <aouledameur@...libre.com>,
        Felipe Balbi <balbi@...nel.org>
Cc:     Philipp Zabel <p.zabel@...gutronix.de>,
        Jerome Brunet <jbrunet@...libre.com>,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH 0/3] usb: meson: fix shared reset control use

Amjad Ouled-Ameur <aouledameur@...libre.com> writes:

> Hello Felipe and Kevin,
>
>
> Could you please review this patchset ?

The changes are OK with me.  Please update based on Martin's
suggestions and this can be queued up by the USB maintainers.

Kevin

> Thank you in advance.
>
> On 13/11/2020 01:05, Amjad Ouled-Ameur wrote:
>
>> This patchset fixes a usb suspend warning seen on the libretech-cc by
>> using reset_control_rearm() call of the reset framework API.
>> This call allows a reset consummer to release the reset line even when
>> just triggered so that it may be triggered again by other reset
>> consummers.
>>
>> reset_control_(de)assert() calls are called, in some meson usb drivers,
>> on a shared reset line when reset_control_reset has been used. This is not
>> allowed by the reset framework.
>>
>> Finally the meson usb drivers are updated to use this new call, which
>> solves the suspend issue addressed by the previous reverted
>> commit 7a410953d1fb ("usb: dwc3: meson-g12a: fix shared reset control
>> use").
>>
>> Important:
>> Please DO NOT merge before this patch [0] is merged, it adds
>> reset_control_rearm() call to the reset framework API.
>>
>> [0] https://lore.kernel.org/lkml/20201112230043.28987-1-aouledameur@baylib
>> re.com/
>>
>> Amjad Ouled-Ameur (3):
>>    phy: amlogic: phy-meson-gxl-usb2: fix shared reset controller use
>>    usb: dwc3: meson-g12a: fix shared reset control use
>>    phy: amlogic: meson8b-usb2: fix shared reset control use
>>
>>   drivers/phy/amlogic/phy-meson-gxl-usb2.c |  5 ++++-
>>   drivers/phy/amlogic/phy-meson8b-usb2.c   |  4 ++++
>>   drivers/usb/dwc3/dwc3-meson-g12a.c       | 19 +++++++++++++------
>>   3 files changed, 21 insertions(+), 7 deletions(-)
>>
>>
> Sincerely,
> Amjad