* [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point
@ 2018-09-12 8:13 Anson Huang
2018-09-12 8:28 ` Stefan Wahren
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Anson Huang @ 2018-09-12 8:13 UTC (permalink / raw)
To: shawnguo, s.hauer, kernel, fabio.estevam, robh+dt, mark.rutland,
linux-arm-kernel, devicetree, linux-kernel
Cc: Linux-imx
Update VDD_SOC voltage to 1.25V for 900MHz operating point
according to datasheet Rev. 1.3, 08/2018, 25mV is added to
the minimum allowed values to cover power supply ripple.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
arch/arm/boot/dts/imx6ull.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx6ull.dtsi b/arch/arm/boot/dts/imx6ull.dtsi
index cd1776a..796ed35 100644
--- a/arch/arm/boot/dts/imx6ull.dtsi
+++ b/arch/arm/boot/dts/imx6ull.dtsi
@@ -22,7 +22,7 @@
>;
fsl,soc-operating-points = <
/* KHz uV */
- 900000 1175000
+ 900000 1250000
792000 1175000
528000 1175000
396000 1175000
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point
2018-09-12 8:13 [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point Anson Huang
@ 2018-09-12 8:28 ` Stefan Wahren
2018-09-12 8:30 ` Anson Huang
2018-09-18 7:57 ` Sébastien Szymanski
2018-09-25 15:33 ` Shawn Guo
2 siblings, 1 reply; 6+ messages in thread
From: Stefan Wahren @ 2018-09-12 8:28 UTC (permalink / raw)
To: Anson Huang, shawnguo, s.hauer, kernel, fabio.estevam, robh+dt,
mark.rutland, linux-arm-kernel, devicetree, linux-kernel
Cc: Linux-imx
Hi Anson,
Am 12.09.2018 um 10:13 schrieb Anson Huang:
> Update VDD_SOC voltage to 1.25V for 900MHz operating point
> according to datasheet Rev. 1.3, 08/2018, 25mV is added to
> the minimum allowed values to cover power supply ripple.
is there a reason why the new datasheet isn't published yet?
Regards
Stefan
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point
2018-09-12 8:28 ` Stefan Wahren
@ 2018-09-12 8:30 ` Anson Huang
2018-09-18 1:15 ` Anson Huang
0 siblings, 1 reply; 6+ messages in thread
From: Anson Huang @ 2018-09-12 8:30 UTC (permalink / raw)
To: Stefan Wahren, shawnguo@kernel.org, s.hauer@pengutronix.de,
kernel@pengutronix.de, Fabio Estevam, robh+dt@kernel.org,
mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: dl-linux-imx
Hi, Stefan
Anson Huang
Best Regards!
> -----Original Message-----
> From: Stefan Wahren <stefan.wahren@i2se.com>
> Sent: Wednesday, September 12, 2018 4:28 PM
> To: Anson Huang <anson.huang@nxp.com>; shawnguo@kernel.org;
> s.hauer@pengutronix.de; kernel@pengutronix.de; Fabio Estevam
> <fabio.estevam@nxp.com>; robh+dt@kernel.org; mark.rutland@arm.com;
> linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org;
> linux-kernel@vger.kernel.org
> Cc: dl-linux-imx <linux-imx@nxp.com>
> Subject: Re: [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz
> operating point
>
> Hi Anson,
>
> Am 12.09.2018 um 10:13 schrieb Anson Huang:
> > Update VDD_SOC voltage to 1.25V for 900MHz operating point according
> > to datasheet Rev. 1.3, 08/2018, 25mV is added to the minimum allowed
> > values to cover power supply ripple.
>
> is there a reason why the new datasheet isn't published yet?
We just got this new datasheet recently, it will be published soon.
Anson.
>
> Regards
> Stefan
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point
2018-09-12 8:30 ` Anson Huang
@ 2018-09-18 1:15 ` Anson Huang
0 siblings, 0 replies; 6+ messages in thread
From: Anson Huang @ 2018-09-18 1:15 UTC (permalink / raw)
To: Stefan Wahren, shawnguo@kernel.org, s.hauer@pengutronix.de,
kernel@pengutronix.de, Fabio Estevam, robh+dt@kernel.org,
mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: dl-linux-imx
Hi, Stefan
Anson Huang
Best Regards!
> -----Original Message-----
> From: Anson Huang
> Sent: Wednesday, September 12, 2018 4:30 PM
> To: Stefan Wahren <stefan.wahren@i2se.com>; shawnguo@kernel.org;
> s.hauer@pengutronix.de; kernel@pengutronix.de; Fabio Estevam
> <fabio.estevam@nxp.com>; robh+dt@kernel.org; mark.rutland@arm.com;
> linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org;
> linux-kernel@vger.kernel.org
> Cc: dl-linux-imx <linux-imx@nxp.com>
> Subject: RE: [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz
> operating point
>
> Hi, Stefan
>
> Anson Huang
> Best Regards!
>
>
> > -----Original Message-----
> > From: Stefan Wahren <stefan.wahren@i2se.com>
> > Sent: Wednesday, September 12, 2018 4:28 PM
> > To: Anson Huang <anson.huang@nxp.com>; shawnguo@kernel.org;
> > s.hauer@pengutronix.de; kernel@pengutronix.de; Fabio Estevam
> > <fabio.estevam@nxp.com>; robh+dt@kernel.org; mark.rutland@arm.com;
> > linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org;
> > linux-kernel@vger.kernel.org
> > Cc: dl-linux-imx <linux-imx@nxp.com>
> > Subject: Re: [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for
> > 900MHz operating point
> >
> > Hi Anson,
> >
> > Am 12.09.2018 um 10:13 schrieb Anson Huang:
> > > Update VDD_SOC voltage to 1.25V for 900MHz operating point according
> > > to datasheet Rev. 1.3, 08/2018, 25mV is added to the minimum allowed
> > > values to cover power supply ripple.
> >
> > is there a reason why the new datasheet isn't published yet?
>
> We just got this new datasheet recently, it will be published soon.
>
> Anson
The v1.3 datasheet has been published. Please check it from NXP website, thanks.
Anson.
>
> >
> > Regards
> > Stefan
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point
2018-09-12 8:13 [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point Anson Huang
2018-09-12 8:28 ` Stefan Wahren
@ 2018-09-18 7:57 ` Sébastien Szymanski
2018-09-25 15:33 ` Shawn Guo
2 siblings, 0 replies; 6+ messages in thread
From: Sébastien Szymanski @ 2018-09-18 7:57 UTC (permalink / raw)
To: Anson Huang, shawnguo, s.hauer, kernel, fabio.estevam, robh+dt,
mark.rutland, linux-arm-kernel, devicetree, linux-kernel
Cc: Linux-imx
On 09/12/2018 10:13 AM, Anson Huang wrote:
> Update VDD_SOC voltage to 1.25V for 900MHz operating point
> according to datasheet Rev. 1.3, 08/2018, 25mV is added to
> the minimum allowed values to cover power supply ripple.
>
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> ---
> arch/arm/boot/dts/imx6ull.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/imx6ull.dtsi b/arch/arm/boot/dts/imx6ull.dtsi
> index cd1776a..796ed35 100644
> --- a/arch/arm/boot/dts/imx6ull.dtsi
> +++ b/arch/arm/boot/dts/imx6ull.dtsi
> @@ -22,7 +22,7 @@
> >;
> fsl,soc-operating-points = <
> /* KHz uV */
> - 900000 1175000
> + 900000 1250000
> 792000 1175000
> 528000 1175000
> 396000 1175000
>
Reviewed-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
--
Sébastien Szymanski
Software engineer, Armadeus Systems
Tel: +33 (0)9 72 29 41 44
Fax: +33 (0)9 72 28 79 26
_______________________________________________
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
* Re: [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point
2018-09-12 8:13 [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point Anson Huang
2018-09-12 8:28 ` Stefan Wahren
2018-09-18 7:57 ` Sébastien Szymanski
@ 2018-09-25 15:33 ` Shawn Guo
2 siblings, 0 replies; 6+ messages in thread
From: Shawn Guo @ 2018-09-25 15:33 UTC (permalink / raw)
To: Anson Huang
Cc: s.hauer, kernel, fabio.estevam, robh+dt, mark.rutland,
linux-arm-kernel, devicetree, linux-kernel, Linux-imx
On Wed, Sep 12, 2018 at 04:13:29PM +0800, Anson Huang wrote:
> Update VDD_SOC voltage to 1.25V for 900MHz operating point
> according to datasheet Rev. 1.3, 08/2018, 25mV is added to
> the minimum allowed values to cover power supply ripple.
>
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Applied, thanks.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2018-09-12 8:13 [PATCH] ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point Anson Huang
2018-09-12 8:28 ` Stefan Wahren
2018-09-12 8:30 ` Anson Huang
2018-09-18 1:15 ` Anson Huang
2018-09-18 7:57 ` Sébastien Szymanski
2018-09-25 15:33 ` Shawn Guo
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