* [PATCH] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU
@ 2020-03-19 16:46 Guido Günther
2020-03-23 19:17 ` Martin Kepplinger
2020-04-20 14:54 ` Shawn Guo
0 siblings, 2 replies; 6+ messages in thread
From: Guido Günther @ 2020-03-19 16:46 UTC (permalink / raw)
To: Rob Herring, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, NXP Linux Team, Angus Ainslie (Purism),
Martin Kepplinger, Guido Günther, Abel Vesa, Anson Huang,
devicetree, linux-arm-kernel, linux-kernel
According to the imx8mq data sheet running VDD_GPU at 0.9V is enough
when not overclocking to 1GHz (which we currently don't do).
Signed-off-by: Guido Günther <agx@sigxcpu.org>
---
arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
index c47a26cf8e43..736b250bc9c2 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -318,7 +318,7 @@
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1300000>;
regulator-always-on;
- rohm,dvs-run-voltage = <1000000>;
+ rohm,dvs-run-voltage = <900000>;
};
buck4_reg: BUCK4 {
--
2.23.0
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU
2020-03-19 16:46 [PATCH] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU Guido Günther
@ 2020-03-23 19:17 ` Martin Kepplinger
2020-04-20 14:54 ` Shawn Guo
1 sibling, 0 replies; 6+ messages in thread
From: Martin Kepplinger @ 2020-03-23 19:17 UTC (permalink / raw)
To: Guido Günther, Rob Herring, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Angus Ainslie (Purism),
Abel Vesa, Anson Huang, devicetree, linux-arm-kernel,
linux-kernel
On 19.03.20 17:46, Guido Günther wrote:
> According to the imx8mq data sheet running VDD_GPU at 0.9V is enough
> when not overclocking to 1GHz (which we currently don't do).
>
> Signed-off-by: Guido Günther <agx@sigxcpu.org>
> ---
> arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> index c47a26cf8e43..736b250bc9c2 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> @@ -318,7 +318,7 @@
> regulator-min-microvolt = <700000>;
> regulator-max-microvolt = <1300000>;
> regulator-always-on;
> - rohm,dvs-run-voltage = <1000000>;
> + rohm,dvs-run-voltage = <900000>;
> };
>
> buck4_reg: BUCK4 {
>
since I'm running this now:
Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
thanks
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU
2020-03-19 16:46 [PATCH] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU Guido Günther
2020-03-23 19:17 ` Martin Kepplinger
@ 2020-04-20 14:54 ` Shawn Guo
2020-04-20 16:32 ` Guido Günther
1 sibling, 1 reply; 6+ messages in thread
From: Shawn Guo @ 2020-04-20 14:54 UTC (permalink / raw)
To: Guido Günther
Cc: Rob Herring, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, NXP Linux Team, Angus Ainslie (Purism),
Martin Kepplinger, Abel Vesa, Anson Huang, devicetree,
linux-arm-kernel, linux-kernel
On Thu, Mar 19, 2020 at 05:46:02PM +0100, Guido Günther wrote:
> According to the imx8mq data sheet running VDD_GPU at 0.9V is enough
> when not overclocking to 1GHz (which we currently don't do).
>
> Signed-off-by: Guido Günther <agx@sigxcpu.org>
It doesn't apply to my branch.
Shawn
> ---
> arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> index c47a26cf8e43..736b250bc9c2 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> @@ -318,7 +318,7 @@
> regulator-min-microvolt = <700000>;
> regulator-max-microvolt = <1300000>;
> regulator-always-on;
> - rohm,dvs-run-voltage = <1000000>;
> + rohm,dvs-run-voltage = <900000>;
> };
>
> buck4_reg: BUCK4 {
> --
> 2.23.0
>
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU
2020-04-20 14:54 ` Shawn Guo
@ 2020-04-20 16:32 ` Guido Günther
2020-04-21 3:03 ` Shawn Guo
0 siblings, 1 reply; 6+ messages in thread
From: Guido Günther @ 2020-04-20 16:32 UTC (permalink / raw)
To: Shawn Guo
Cc: Rob Herring, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, NXP Linux Team, Angus Ainslie (Purism),
Martin Kepplinger, Abel Vesa, Anson Huang, devicetree,
linux-arm-kernel, linux-kernel
Hi,
On Mon, Apr 20, 2020 at 10:54:59PM +0800, Shawn Guo wrote:
> On Thu, Mar 19, 2020 at 05:46:02PM +0100, Guido Günther wrote:
> > According to the imx8mq data sheet running VDD_GPU at 0.9V is enough
> > when not overclocking to 1GHz (which we currently don't do).
> >
> > Signed-off-by: Guido Günther <agx@sigxcpu.org>
>
> It doesn't apply to my branch.
This was against linux next when i sent it, can you link to the branch
it should apply to please?
-- Guido
>
> Shawn
>
> > ---
> > arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> > index c47a26cf8e43..736b250bc9c2 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> > +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> > @@ -318,7 +318,7 @@
> > regulator-min-microvolt = <700000>;
> > regulator-max-microvolt = <1300000>;
> > regulator-always-on;
> > - rohm,dvs-run-voltage = <1000000>;
> > + rohm,dvs-run-voltage = <900000>;
> > };
> >
> > buck4_reg: BUCK4 {
> > --
> > 2.23.0
> >
>
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU
2020-04-20 16:32 ` Guido Günther
@ 2020-04-21 3:03 ` Shawn Guo
2020-04-21 14:45 ` Guido Günther
0 siblings, 1 reply; 6+ messages in thread
From: Shawn Guo @ 2020-04-21 3:03 UTC (permalink / raw)
To: Guido Günther
Cc: Rob Herring, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, NXP Linux Team, Angus Ainslie (Purism),
Martin Kepplinger, Abel Vesa, Anson Huang, devicetree,
linux-arm-kernel, linux-kernel
On Mon, Apr 20, 2020 at 06:32:24PM +0200, Guido Günther wrote:
> Hi,
> On Mon, Apr 20, 2020 at 10:54:59PM +0800, Shawn Guo wrote:
> > On Thu, Mar 19, 2020 at 05:46:02PM +0100, Guido Günther wrote:
> > > According to the imx8mq data sheet running VDD_GPU at 0.9V is enough
> > > when not overclocking to 1GHz (which we currently don't do).
> > >
> > > Signed-off-by: Guido Günther <agx@sigxcpu.org>
> >
> > It doesn't apply to my branch.
>
> This was against linux next when i sent it, can you link to the branch
> it should apply to please?
Here it is:
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git for-next
Or even better:
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git imx/dt64
Shawn
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU
2020-04-21 3:03 ` Shawn Guo
@ 2020-04-21 14:45 ` Guido Günther
0 siblings, 0 replies; 6+ messages in thread
From: Guido Günther @ 2020-04-21 14:45 UTC (permalink / raw)
To: Shawn Guo
Cc: Rob Herring, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, NXP Linux Team, Angus Ainslie (Purism),
Martin Kepplinger, Abel Vesa, Anson Huang, devicetree,
linux-arm-kernel, linux-kernel
Hi,
On Tue, Apr 21, 2020 at 11:03:07AM +0800, Shawn Guo wrote:
> On Mon, Apr 20, 2020 at 06:32:24PM +0200, Guido Günther wrote:
> > Hi,
> > On Mon, Apr 20, 2020 at 10:54:59PM +0800, Shawn Guo wrote:
> > > On Thu, Mar 19, 2020 at 05:46:02PM +0100, Guido Günther wrote:
> > > > According to the imx8mq data sheet running VDD_GPU at 0.9V is enough
> > > > when not overclocking to 1GHz (which we currently don't do).
> > > >
> > > > Signed-off-by: Guido Günther <agx@sigxcpu.org>
> > >
> > > It doesn't apply to my branch.
> >
> > This was against linux next when i sent it, can you link to the branch
> > it should apply to please?
>
> Here it is:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git for-next
>
> Or even better:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git imx/dt64
Thanks - and sorry for getting confused with all the kernel trees
around. v2 should apply to the above:
https://lore.kernel.org/linux-arm-kernel/55399d6b297e329f125a71aea16e5f48c2857945.1587480093.git.agx@sigxcpu.org/T/#mfa29f121347a9d3d76bb14d58fc63fe39767db9c
Cheers,
-- Guido
>
> Shawn
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-04-21 14:46 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2020-03-19 16:46 [PATCH] arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU Guido Günther
2020-03-23 19:17 ` Martin Kepplinger
2020-04-20 14:54 ` Shawn Guo
2020-04-20 16:32 ` Guido Günther
2020-04-21 3:03 ` Shawn Guo
2020-04-21 14:45 ` Guido Günther
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