From mboxrd@z Thu Jan 1 00:00:00 1970 From: gregory.clement@free-electrons.com (Gregory CLEMENT) Date: Mon, 12 Oct 2015 18:31:07 +0200 Subject: [PATCH 1/2] arm: mvebu: disable unused Armada RTC on ReadyNAS 102, 104 and 2120 In-Reply-To: <2e62abb84de02c0495bde9d60a90282deae40967.1444428035.git.arno@natisbad.org> (Arnaud Ebalard's message of "Sat, 10 Oct 2015 00:10:24 +0200") References: <2e62abb84de02c0495bde9d60a90282deae40967.1444428035.git.arno@natisbad.org> Message-ID: <8737xgkq0k.fsf@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Arnaud, On sam., oct. 10 2015, Arnaud Ebalard wrote: > By default, armada-370-xp.dtsi file has internal RTC enabled. > NETGEAR ReadyNAS 102, 104 and 2120 all use an Intersil ISL12057 > I2C RTC chip. The internal RTC not being disabled in the .dts > files of those devices result in the following useless first > line during boot: > > [ 4.500056] rtc-mv d0010300.rtc: internal RTC not ticking > [ 4.505684] i2c /dev entries driver > [ 4.513246] rtc-isl12057 0-0068: rtc core: registered rtc-isl12057 as rtc0 > > This patch marks Armada internal RTC as disabled in individual .dts > files of those devices. > > Reported-by: TuxOholic > Signed-off-by: Arnaud Ebalard Applied on mvebu/dt with Andrew's acked-by Thanks, Gregory > --- > arch/arm/boot/dts/armada-370-netgear-rn102.dts | 6 ++++++ > arch/arm/boot/dts/armada-370-netgear-rn104.dts | 6 ++++++ > arch/arm/boot/dts/armada-xp-netgear-rn2120.dts | 6 ++++++ > 3 files changed, 18 insertions(+) > > diff --git a/arch/arm/boot/dts/armada-370-netgear-rn102.dts b/arch/arm/boot/dts/armada-370-netgear-rn102.dts > index a31207860f34..5851964196bd 100644 > --- a/arch/arm/boot/dts/armada-370-netgear-rn102.dts > +++ b/arch/arm/boot/dts/armada-370-netgear-rn102.dts > @@ -82,6 +82,12 @@ > }; > > internal-regs { > + > + /* RTC is provided by Intersil ISL12057 I2C RTC chip */ > + rtc at 10300 { > + status = "disabled"; > + }; > + > serial at 12000 { > status = "okay"; > }; > diff --git a/arch/arm/boot/dts/armada-370-netgear-rn104.dts b/arch/arm/boot/dts/armada-370-netgear-rn104.dts > index 00540f292979..b0b07ba677b9 100644 > --- a/arch/arm/boot/dts/armada-370-netgear-rn104.dts > +++ b/arch/arm/boot/dts/armada-370-netgear-rn104.dts > @@ -82,6 +82,12 @@ > }; > > internal-regs { > + > + /* RTC is provided by Intersil ISL12057 I2C RTC chip */ > + rtc at 10300 { > + status = "disabled"; > + }; > + > serial at 12000 { > status = "okay"; > }; > diff --git a/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts b/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts > index 1516fc2627f9..85b2f87c0b8a 100644 > --- a/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts > +++ b/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts > @@ -88,6 +88,12 @@ > }; > > internal-regs { > + > + /* RTC is provided by Intersil ISL12057 I2C RTC chip */ > + rtc at 10300 { > + status = "disabled"; > + }; > + > /* Two rear eSATA ports */ > sata at a0000 { > nr-ports = <2>; > -- > 2.5.3 > > -- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com