* [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on
@ 2018-06-27 1:25 ` Anson Huang
0 siblings, 0 replies; 6+ messages in thread
From: Anson Huang @ 2018-06-27 1:25 UTC (permalink / raw)
To: linux-arm-kernel
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>
---
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
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on @ 2018-06-27 1:25 ` Anson Huang 0 siblings, 0 replies; 6+ messages in thread From: Anson Huang @ 2018-06-27 1:25 UTC (permalink / raw) To: shawnguo, s.hauer, kernel, fabio.estevam, robh+dt, mark.rutland Cc: Linux-imx, linux-arm-kernel, devicetree, linux-kernel 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> --- 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 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on 2018-06-27 1:25 ` Anson Huang @ 2018-07-01 13:32 ` Shawn Guo -1 siblings, 0 replies; 6+ messages in thread From: Shawn Guo @ 2018-07-01 13:32 UTC (permalink / raw) To: linux-arm-kernel 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 ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on @ 2018-07-01 13:32 ` Shawn Guo 0 siblings, 0 replies; 6+ messages in thread From: Shawn Guo @ 2018-07-01 13:32 UTC (permalink / raw) To: Anson Huang Cc: s.hauer, kernel, fabio.estevam, robh+dt, mark.rutland, devicetree, Linux-imx, linux-arm-kernel, linux-kernel 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 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on 2018-07-01 13:32 ` Shawn Guo @ 2018-07-02 0:55 ` Anson Huang -1 siblings, 0 replies; 6+ messages in thread From: Anson Huang @ 2018-07-02 0:55 UTC (permalink / raw) To: linux-arm-kernel Hi, Shawn Anson Huang Best Regards! > -----Original Message----- > From: Shawn Guo [mailto:shawnguo at kernel.org] > Sent: Sunday, July 1, 2018 9:33 PM > To: Anson Huang <anson.huang@nxp.com> > Cc: s.hauer at pengutronix.de; kernel at pengutronix.de; Fabio Estevam > <fabio.estevam@nxp.com>; robh+dt at kernel.org; mark.rutland at arm.com; > devicetree at vger.kernel.org; dl-linux-imx <linux-imx@nxp.com>; > linux-arm-kernel at lists.infradead.org; linux-kernel at vger.kernel.org > Subject: Re: [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on > > 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 The kernel patch will break with existing DTB on some i.MX platforms, how to handle this case, just revert the kernel regulator patch? Anson. > > > --- > > 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 > > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flist > > > s.infradead.org%2Fmailman%2Flistinfo%2Flinux-arm-kernel&data=02%7C01%7 > > > CAnson.Huang%40nxp.com%7C614a104918884539521a08d5df572851%7C686 > ea1d3bc > > > 2b4c6fa92cd99c5c301635%7C0%7C0%7C636660487794141749&sdata=1%2B > EKM%2Bnx > > egyDGLc%2FHt9cbh%2BARlMSsoJP%2FbD6HlxwVFs%3D&reserved=0 ^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on @ 2018-07-02 0:55 ` Anson Huang 0 siblings, 0 replies; 6+ messages in thread From: Anson Huang @ 2018-07-02 0:55 UTC (permalink / raw) To: Shawn Guo Cc: s.hauer@pengutronix.de, kernel@pengutronix.de, Fabio Estevam, robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org, dl-linux-imx, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Hi, Shawn Anson Huang Best Regards! > -----Original Message----- > From: Shawn Guo [mailto:shawnguo@kernel.org] > Sent: Sunday, July 1, 2018 9:33 PM > To: Anson Huang <anson.huang@nxp.com> > Cc: s.hauer@pengutronix.de; kernel@pengutronix.de; Fabio Estevam > <fabio.estevam@nxp.com>; robh+dt@kernel.org; mark.rutland@arm.com; > devicetree@vger.kernel.org; dl-linux-imx <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 > > 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 The kernel patch will break with existing DTB on some i.MX platforms, how to handle this case, just revert the kernel regulator patch? Anson. > > > --- > > 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 > > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flist > > > s.infradead.org%2Fmailman%2Flistinfo%2Flinux-arm-kernel&data=02%7C01%7 > > > CAnson.Huang%40nxp.com%7C614a104918884539521a08d5df572851%7C686 > ea1d3bc > > > 2b4c6fa92cd99c5c301635%7C0%7C0%7C636660487794141749&sdata=1%2B > EKM%2Bnx > > egyDGLc%2FHt9cbh%2BARlMSsoJP%2FbD6HlxwVFs%3D&reserved=0 ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2018-07-02 0:55 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 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 2018-07-01 13:32 ` Shawn Guo 2018-07-02 0:55 ` Anson Huang 2018-07-02 0:55 ` Anson Huang
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