linux-kernel - Re: [PATCH 0/3] USB: host: ohci-at91: tailor power consumption

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Message-ID: <Pine.LNX.4.44L0.1909111108460.1483-100000@iolanthe.rowland.org>
Date:   Wed, 11 Sep 2019 11:09:10 -0400 (EDT)
From:   Alan Stern <stern@...land.harvard.edu>
To:     Nicolas Ferre <nicolas.ferre@...rochip.com>
cc:     linux-kernel@...r.kernel.org,
        <linux-arm-kernel@...ts.infradead.org>,
        <gregkh@...uxfoundation.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        <Boris.Krasnovskiy@...rdconnect.com>, <linux-usb@...r.kernel.org>
Subject: Re: [PATCH 0/3] USB: host: ohci-at91: tailor power consumption

On Wed, 11 Sep 2019, Nicolas Ferre wrote:

> Following a set of experiments we found areas of improvement for OHCI power
> consumption (and associated USB analog cells).
> This enhances the shutdown of residual power consumption in case of Linux
> suspend/resume and removal of the driver (when compiled as a module).
> 
> Best regards,
>   Nicolas
> 
> Boris Krasnovskiy (2):
>   USB: host: ohci-at91: completely shutdown the controller in
>     at91_stop_hc()
>   USB: host: ohci-at91: resume: balance the clock start call
> 
> Nicolas Ferre (1):
>   USB: host: ohci-at91: suspend: delay needed before to stop clocks
> 
>  drivers/usb/host/ohci-at91.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)

For all three patches:

Acked-by: Alan Stern <stern@...land.harvard.edu>