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Date: Tue, 31 May 2016 14:24:50 -0400 From: "George G. Davis" <george_davis@...tor.com> To: Fabio Estevam <festevam@...il.com> CC: "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>, linux-kernel <linux-kernel@...r.kernel.org>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, Fugang Duan <fugang.duan@....com>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <kernel@...gutronix.de>, Russell King <linux@...linux.org.uk>, Linus Walleij <linus.walleij@...aro.org>, Alexandre Courbot <gnurou@...il.com> Subject: Re: [PATCH] net: fec: dt: convert phy-reset-gpios to use GPIOD API Hello Fabio, On Tue, May 31, 2016 at 02:26:54PM -0300, Fabio Estevam wrote: > On Tue, May 31, 2016 at 2:17 PM, George G. Davis > <george_davis@...tor.com> wrote: > > Convert the i.MX FEC driver and DT files to use the GPIOD API > > which automatically handles GPIO polarity. > > > > Signed-off-by: George G. Davis <george_davis@...tor.com> > > In order to avoid breaking old dtb's a property called > 'phy-reset-active-high' has been introduced. > > Check: 962d8cdc3133435a ("net: fec: Rename "phy-reset-active-low" > property") and 64f10f6ebf5a6d3ae ("net: fec: Add > "phy-reset-active-low" property to DT"). The GPIOD API handles GPIO active assertion levels as defined by the DT binding. So the phy-reset-active-high and/or phy-reset-active-low property is not needed when using the GPIOD API - just define GPIO_ACTIVE_LOW or GPIO_ACTIVE_HIGH as required for the board and the GPIOD API will handle active assert/deassert level as needed. -- Regards, George
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