linux-kernel - Re: [PATCH 1/3] USB: musb: dsps: drop duplicate phy initialisation

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Message-ID: <20180413184515.4qg24ksghap7s5hd@pengutronix.de>
Date:   Fri, 13 Apr 2018 20:45:15 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Johan Hovold <johan@...nel.org>
Cc:     Bin Liu <b-liu@...com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Arnd Bergmann <arnd@...db.de>,
        Kishon Vijay Abraham I <kishon@...com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de
Subject: Re: [PATCH 1/3] USB: musb: dsps: drop duplicate phy initialisation

On Fri, Apr 13, 2018 at 05:15:03PM +0200, Johan Hovold wrote:
> Since commit 39cee200c23e ("usb: musb: core: call init and shutdown for
> the usb phy") the musb USB phy is initialised by musb_core, but the
> original initialisation in the dsps-glue init callback was left in
> place resulting in two calls to phy init during probe (and similarly,
> two shutdowns on remove).
> 
> Drop the duplicate phy init and shutdown calls from the dsps glue in
> favour of the ones in musb core, which other glue drivers rely on.

Hmm, I don't remember the details of my debug session that led to
39cee200c23e, and I don't have access to the hardware in question any
more.

But your commit logs makes sense, so

Acked-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Given that it took 2+ years to find this, backporting to stable and a
Fixes: line are probably not necessary.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |