From: Shawn Guo <shawnguo@kernel.org> To: Anson Huang <Anson.Huang@nxp.com> Cc: s.hauer@pengutronix.de, kernel@pengutronix.de, fabio.estevam@nxp.com, robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org, Linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on Date: Sun, 1 Jul 2018 21:32:44 +0800 [thread overview] Message-ID: <20180701133243.GU4348@dragon> (raw) In-Reply-To: <1530062725-25779-1-git-send-email-Anson.Huang@nxp.com> On Wed, Jun 27, 2018 at 09:25:25AM +0800, Anson Huang wrote: > On i.MX6SLL EVK board, PFuze100's SW4 is supplying > LPDDR3, it needs to be always on. This patch fixes > Linux kernel boot up hang caused by commit 5fe156f1cab4 > ("regulator: pfuze100: add enable/disable for switch"), > because SW4 is turned off unexpectedly: > > [ 1.693613] cfg80211: failed to load regulatory.db > [ 1.700063] SW4: disabling > [ 1.703973] SWBST: disabling > > Fixes: 5fe156f1cab4 ("regulator: pfuze100: add enable/disable for switch") > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> > Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Just want to understand if we agree to break the existing DTB with v4.18 kernel? Shawn > --- > changes since V2: > improve the way of referencing commit, and add fix tag. > arch/arm/boot/dts/imx6sll-evk.dts | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/imx6sll-evk.dts b/arch/arm/boot/dts/imx6sll-evk.dts > index 4684ac4..2217c40 100644 > --- a/arch/arm/boot/dts/imx6sll-evk.dts > +++ b/arch/arm/boot/dts/imx6sll-evk.dts > @@ -142,6 +142,7 @@ > sw4_reg: sw4 { > regulator-min-microvolt = <800000>; > regulator-max-microvolt = <3300000>; > + regulator-always-on; > }; > > swbst_reg: swbst { > -- > 2.7.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: shawnguo@kernel.org (Shawn Guo) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on Date: Sun, 1 Jul 2018 21:32:44 +0800 [thread overview] Message-ID: <20180701133243.GU4348@dragon> (raw) In-Reply-To: <1530062725-25779-1-git-send-email-Anson.Huang@nxp.com> On Wed, Jun 27, 2018 at 09:25:25AM +0800, Anson Huang wrote: > On i.MX6SLL EVK board, PFuze100's SW4 is supplying > LPDDR3, it needs to be always on. This patch fixes > Linux kernel boot up hang caused by commit 5fe156f1cab4 > ("regulator: pfuze100: add enable/disable for switch"), > because SW4 is turned off unexpectedly: > > [ 1.693613] cfg80211: failed to load regulatory.db > [ 1.700063] SW4: disabling > [ 1.703973] SWBST: disabling > > Fixes: 5fe156f1cab4 ("regulator: pfuze100: add enable/disable for switch") > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> > Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Just want to understand if we agree to break the existing DTB with v4.18 kernel? Shawn > --- > changes since V2: > improve the way of referencing commit, and add fix tag. > arch/arm/boot/dts/imx6sll-evk.dts | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/imx6sll-evk.dts b/arch/arm/boot/dts/imx6sll-evk.dts > index 4684ac4..2217c40 100644 > --- a/arch/arm/boot/dts/imx6sll-evk.dts > +++ b/arch/arm/boot/dts/imx6sll-evk.dts > @@ -142,6 +142,7 @@ > sw4_reg: sw4 { > regulator-min-microvolt = <800000>; > regulator-max-microvolt = <3300000>; > + regulator-always-on; > }; > > swbst_reg: swbst { > -- > 2.7.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2018-07-01 13:33 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-06-27 1:25 [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on Anson Huang 2018-06-27 1:25 ` Anson Huang 2018-07-01 13:32 ` Shawn Guo [this message] 2018-07-01 13:32 ` Shawn Guo 2018-07-02 0:55 ` Anson Huang 2018-07-02 0:55 ` Anson Huang 2018-07-02 0:55 ` Anson Huang
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