linux-kernel - Re: [PATCH] usb: phy: phy-generic: Fix reset behaviour on legacy boot

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Message-ID: <CAOMZO5BZnY6X+PYQxB9zzq8e6__t8uiTRF+89orkJ891j6s=og@mail.gmail.com>
Date:	Thu, 13 Aug 2015 22:48:10 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	Roger Quadros <rogerq@...com>
Cc:	Felipe Balbi <balbi@...com>, Tony Lindgren <tony@...mide.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	USB list <linux-usb@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	stable <stable@...r.kernel.org>
Subject: Re: [PATCH] usb: phy: phy-generic: Fix reset behaviour on legacy boot

On Thu, Aug 13, 2015 at 7:28 AM, Roger Quadros <rogerq@...com> wrote:
> The gpio-desc migration done in v4.0 caused a regression
> with legacy boots due to reversed reset logic.
> e.g. omap3-beagle USB host breaks on legacy boot.
>
> Request the reset GPIO with GPIOF_ACTIVE_LOW flag so that
> it matches the driver logic and pin behaviour.
>
> Fixes: e9f2cefb0cdc ("usb: phy: generic: migrate to gpio_desc")
> Cc: <stable@...r.kernel.org> # 4.0+
> Signed-off-by: Roger Quadros <rogerq@...com>

The USB on my mx51-babbage board still works fine with this change:

Tested-by: Fabio Estevam <fabio.estevam@...escale.com>
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