* [PATCH V2] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on
@ 2018-06-26 1:01 ` Anson Huang
0 siblings, 0 replies; 5+ messages in thread
From: Anson Huang @ 2018-06-26 1:01 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
(5fe156f 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
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
changes since V1:
improve commit message by adding info of which commit introduces this issue.
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] 5+ messages in thread
* [PATCH V2] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on
@ 2018-06-26 1:01 ` Anson Huang
0 siblings, 0 replies; 5+ messages in thread
From: Anson Huang @ 2018-06-26 1:01 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
(5fe156f 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
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
changes since V1:
improve commit message by adding info of which commit introduces this issue.
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] 5+ messages in thread
* Re: [PATCH V2] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on
2018-06-26 1:01 ` Anson Huang
(?)
@ 2018-06-27 1:19 ` Fabio Estevam
-1 siblings, 0 replies; 5+ messages in thread
From: Fabio Estevam @ 2018-06-27 1:19 UTC (permalink / raw)
To: Anson Huang
Cc: Shawn Guo, Sascha Hauer, Sascha Hauer, Fabio Estevam,
Rob Herring, Mark Rutland, NXP Linux Team,
moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
linux-kernel
Hi Anson,
On Mon, Jun 25, 2018 at 10:01 PM, Anson Huang <Anson.Huang@nxp.com> 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
> (5fe156f regulator: pfuze100: add enable/disable for switch),
> because SW4 is turned off unexpectedly:
Nit: The proper way to reference a commit is:
commit 5fe156f1cab4 ("regulator: pfuze100: add enable/disable for switch")
12 char for the commit ID and the commit name inside (" ").
> [ 1.693613] cfg80211: failed to load regulatory.db
> [ 1.700063] SW4: disabling
> [ 1.703973] SWBST: disabling
Probably worth adding the Fixes tag so that it can fix the boot
regression in 4.18-rc:
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>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH V2] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on
@ 2018-06-27 1:19 ` Fabio Estevam
0 siblings, 0 replies; 5+ messages in thread
From: Fabio Estevam @ 2018-06-27 1:19 UTC (permalink / raw)
To: Anson Huang
Cc: Shawn Guo, Sascha Hauer, Sascha Hauer, Fabio Estevam,
Rob Herring, Mark Rutland, NXP Linux Team,
moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
linux-kernel
Hi Anson,
On Mon, Jun 25, 2018 at 10:01 PM, Anson Huang <Anson.Huang@nxp.com> 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
> (5fe156f regulator: pfuze100: add enable/disable for switch),
> because SW4 is turned off unexpectedly:
Nit: The proper way to reference a commit is:
commit 5fe156f1cab4 ("regulator: pfuze100: add enable/disable for switch")
12 char for the commit ID and the commit name inside (" ").
> [ 1.693613] cfg80211: failed to load regulatory.db
> [ 1.700063] SW4: disabling
> [ 1.703973] SWBST: disabling
Probably worth adding the Fixes tag so that it can fix the boot
regression in 4.18-rc:
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>
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH V2] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on
@ 2018-06-27 1:19 ` Fabio Estevam
0 siblings, 0 replies; 5+ messages in thread
From: Fabio Estevam @ 2018-06-27 1:19 UTC (permalink / raw)
To: linux-arm-kernel
Hi Anson,
On Mon, Jun 25, 2018 at 10:01 PM, Anson Huang <Anson.Huang@nxp.com> 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
> (5fe156f regulator: pfuze100: add enable/disable for switch),
> because SW4 is turned off unexpectedly:
Nit: The proper way to reference a commit is:
commit 5fe156f1cab4 ("regulator: pfuze100: add enable/disable for switch")
12 char for the commit ID and the commit name inside (" ").
> [ 1.693613] cfg80211: failed to load regulatory.db
> [ 1.700063] SW4: disabling
> [ 1.703973] SWBST: disabling
Probably worth adding the Fixes tag so that it can fix the boot
regression in 4.18-rc:
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>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2018-06-27 1:20 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-06-26 1:01 [PATCH V2] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on Anson Huang
2018-06-26 1:01 ` Anson Huang
2018-06-27 1:19 ` Fabio Estevam
2018-06-27 1:19 ` Fabio Estevam
2018-06-27 1:19 ` Fabio Estevam
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