From mboxrd@z Thu Jan 1 00:00:00 1970 From: swarren@wwwdotorg.org (Stephen Warren) Date: Mon, 12 Aug 2013 09:50:02 -0600 Subject: [PATCH v10] reset: Add driver for gpio-controlled reset pins In-Reply-To: <1376305484.22237.37.camel@pizza.hi.pengutronix.de> References: <1374139586-6344-1-git-send-email-p.zabel@pengutronix.de> <20130802092823.GA2884@e106331-lin.cambridge.arm.com> <1375687936.4000.21.camel@pizza.hi.pengutronix.de> <51FFDFB7.6080806@wwwdotorg.org> <1375774345.4004.25.camel@pizza.hi.pengutronix.de> <52012B70.7050306@wwwdotorg.org> <1375954978.4284.29.camel@pizza.hi.pengutronix.de> <5203E6B5.1010704@wwwdotorg.org> <1376305484.22237.37.camel@pizza.hi.pengutronix.de> Message-ID: <5209042A.3060104@wwwdotorg.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 08/12/2013 05:04 AM, Philipp Zabel wrote: > Am Donnerstag, den 08.08.2013, 12:43 -0600 schrieb Stephen Warren: ... >> Equally, if every binding is either-or, you may as well force drivers >> passing the binding to just call different APIs based on their binding >> definition. >> >> If (2), then you'd need to pass both the legacy property name and >> reset-names value separately, since I imagine those values would be >> different, consider: >> >> old: >> >> nvidia,phy-reset-gpio = <&gpio 1 0>; >> >> new: >> >> reset-gpios = <&gpio 1 0>; >> reset-names = "phy"; > > Correct. In this case: > > rstc = of_get_named_reset_control(np, "nvidia,phy-reset-gpio", 0); > if (IS_ERR(rstc)) { > ret = PTR_ERR(rstc); > if (ret == -EPROBE_DEFER) > return ret; > rstc = reset_control_get(dev, "phy"); > if (IS_ERR(rstc)) > return PTR_ERR(rstc); > } > > Maybe encapsulate this in a convenience wrapper: > > rstc = reset_control_get_legacy(dev, "phy", "nvidia,phy-reset-gpio"); Yes, that's exactly what I envisaged. Thanks.