From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandre Belloni Subject: Re: [PATCH 4/4] ARM64: dts: imx: add i.MX8QXP system controller RTC support Date: Wed, 28 Nov 2018 10:19:43 +0100 Message-ID: <20181128091943.GB8952@piout.net> References: <1543311334-8807-1-git-send-email-Anson.Huang@nxp.com> <1543311334-8807-5-git-send-email-Anson.Huang@nxp.com> <20181128100420.0c9a721a@karo-electronics.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Anson Huang Cc: Lothar =?iso-8859-1?Q?Wa=DFmann?= , "a.zummo@towertech.it" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "catalin.marinas@arm.com" , "will.deacon@arm.com" , Aisheng DONG , Andy Gross , "arnd@arndb.de" , "horms+renesas@verge.net.au" , "heiko@sntech.de" , "bjorn.andersson@linaro.org" , "enric.balletbo@collabora.com" , "amit.kucheria@linaro.org" , "ezequiel@collabora.com" , "olof@lixom.net" , shawngu List-Id: devicetree@vger.kernel.org On 28/11/2018 09:06:27+0000, Anson Huang wrote: > > > diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi > > b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi > > > index 9155d45..ef57db6 100644 > > > --- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi > > > +++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi > > > @@ -433,4 +433,8 @@ > > > #size-cells = <1>; > > > ranges = <0x5f000000 0x0 0x5f000000 0x1000000>; > > > }; > > > + > > > + rtc: rtc { > > > + compatible = "nxp,imx8qxp-sc-rtc"; > > > + }; > > > }; > > IMO this should be disabled by default. > > This module is NOT depending on any board design, should it be enabled by default in soc dtsi? > Like wdog etc.. > I guess the point is that you may not want it enabled, even if it should always be working. enabling it by default would affect the RTC ordering for example. -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com