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Date: Mon, 10 Jun 2019 15:25:46 +0200 From: Andrew Lunn <andrew@...n.ch> To: Martin Blumenstingl <martin.blumenstingl@...glemail.com> Cc: Maxime Ripard <maxime.ripard@...tlin.com>, netdev@...r.kernel.org, linux-gpio@...r.kernel.org, linux-amlogic@...ts.infradead.org, linus.walleij@...aro.org, bgolaszewski@...libre.com, peppe.cavallaro@...com, alexandre.torgue@...com, joabreu@...opsys.com, devicetree@...r.kernel.org, Neil Armstrong <narmstrong@...libre.com>, khilman@...libre.com, linux-kernel@...r.kernel.org, davem@...emloft.net, linux-arm-kernel@...ts.infradead.org Subject: Re: [RFC next v1 0/5] stmmac: honor the GPIO flags for the PHY reset GPIO > if anyone else (just like me) doesn't know about it, there are generic > bindings defined here: [0] > > I just tested this on my X96 Max by defining the following properties > inside the PHY node: > reset-delay-us = <10000>; > reset-assert-us = <10000>; > reset-deassert-us = <10000>; > reset-gpios = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; > > that means I don't need any stmmac patches which seems nice. > instead I can submit a patch to mark the snps,reset-gpio properties in > the dt-bindings deprecated (and refer to the generic bindings instead) > what do you think? Hi Martin I know Linus wants to replace all users of old GPIO numbers with gpio descriptors. So your patches have value, even if you don't need them. One other things to watch out for. We have generic code at two levels. Either the GPIO is per PHY, and the properties should be in the PHY node, or the reset is for all PHYs of an MDIO bus, and then the properties should be in the MDIO node. Andrew
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