* [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on
@ 2018-06-27 1:25 ` Anson Huang
0 siblings, 0 replies; 7+ 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] 7+ 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; 7+ 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] 7+ messages in thread
* Re: [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; 7+ 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] 7+ messages in thread
* [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on
@ 2018-07-01 13:32 ` Shawn Guo
0 siblings, 0 replies; 7+ 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] 7+ messages in thread
* RE: [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; 7+ messages in thread
From: Anson Huang @ 2018-07-02 0:55 UTC (permalink / raw)
To: Shawn Guo
Cc: s.hauer, kernel, Fabio Estevam, robh+dt, mark.rutland,
devicetree, dl-linux-imx, linux-arm-kernel, linux-kernel
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] 7+ 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; 7+ messages in thread
From: Anson Huang @ 2018-07-02 0:55 UTC (permalink / raw)
To: Shawn Guo
Cc: s.hauer, kernel, Fabio Estevam, robh+dt, mark.rutland,
devicetree, dl-linux-imx, linux-arm-kernel, linux-kernel
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] 7+ messages in thread
* [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on
@ 2018-07-02 0:55 ` Anson Huang
0 siblings, 0 replies; 7+ 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] 7+ messages in thread
end of thread, other threads:[~2018-07-02 0:55 UTC | newest]
Thread overview: 7+ 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
2018-07-02 0:55 ` Anson Huang
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