[PATCH 1/2] ARM: imx6: fix min/max voltage of anatop 2p5 regulator

Philipp Zabel p.zabel at pengutronix.de
Thu Jan 19 06:41:17 PST 2017


On Thu, 2017-01-19 at 15:21 +0100, Lucas Stach wrote:
> The regulation bound of this regulator are 2.1V to 2.875V, the
> wrong DT values cause the driver to miscalculate the effective
> voltage.

As easily checked with

  $ grep vdd2p5 /sys/kernel/debug/regulator/regulator_summary
-  vdd2p5                           0    0      0  2400mV     0mA  2000mV  2750mV 
+  vdd2p5                           0    0      0  2500mV     0mA  2000mV  2750mV 

> This isn't really an issue right now, as nobody actively changes
> the regulator voltage, but better fix it now.
> 
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
> ---
>  arch/arm/boot/dts/imx6qdl.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
> index 53e6e63cbb02..9313b9af2da8 100644
> --- a/arch/arm/boot/dts/imx6qdl.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl.dtsi
> @@ -661,8 +661,8 @@
>  					anatop-vol-bit-shift = <8>;
>  					anatop-vol-bit-width = <5>;
>  					anatop-min-bit-val = <0>;
> -					anatop-min-voltage = <2000000>;
> -					anatop-max-voltage = <2750000>;
> +					anatop-min-voltage = <2100000>;
> +					anatop-max-voltage = <2875000>;
>  				};
>  
>  				reg_arm: regulator-vddcore {

Reviewed-by: Philipp Zabel <p.zabel at pengutronix.de>

regards
Philipp




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