[PATCH v2 1/3] ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage

Russell King - ARM Linux admin linux at armlinux.org.uk
Wed Jan 8 02:34:07 PST 2020


On Wed, Jan 08, 2020 at 11:10:55AM +0100, Marco Felsch wrote:
> The current set minimum voltage of 730000mV seems to be wrong. I don't

mV = milli-volt, /1000th of a volt. So you just said 730V.
µV or uV = micro-volt, which I think is what you mean here.

> know the document which specifies that but the imx6qdl datasheets says
> that the minimum voltage should be 0.925V for VDD_ARM (LDO bypassed,
> lowest opp) and 1.15V for VDD_SOC (LDO bypassed, lowest opp).
> 
> Fixes: ddec5d1c0047 ("ARM: dts: imx6: Add initial support for phyCORE-i.MX 6 SOM")
> Signed-off-by: Marco Felsch <m.felsch at pengutronix.de>
> ---
> v2:
> - use ldo bypassed values
> - adapt commit message
> 
>  arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
> index 6486df3e2942..f23eef1e54e0 100644
> --- a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
> @@ -107,14 +107,14 @@
>  		regulators {
>  			vdd_arm: buck1 {
>  				regulator-name = "vdd_arm";
> -				regulator-min-microvolt = <730000>;
> +				regulator-min-microvolt = <925000>;
>  				regulator-max-microvolt = <1380000>;
>  				regulator-always-on;
>  			};
>  
>  			vdd_soc: buck2 {
>  				regulator-name = "vdd_soc";
> -				regulator-min-microvolt = <730000>;
> +				regulator-min-microvolt = <1150000>;
>  				regulator-max-microvolt = <1380000>;
>  				regulator-always-on;
>  			};
> -- 
> 2.20.1
> 
> 
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> 

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