On Tue, Oct 05, 2021 at 03:14:40PM +0200, Frieder Schrempf wrote: > On 05.10.21 08:56, Shawn Guo wrote: > > On Thu, Sep 30, 2021 at 05:56:26PM +0200, Frieder Schrempf wrote: > >> From: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx> > >> > >> According to the datasheet VDD_SNVS should be 800 mV, so let's > >> make sure that the voltage won't be different. > > > > Could you share the datasheet? > > Sure, it's here: https://www.nxp.com/docs/en/data-sheet/IMX8MMIEC.pdf. > See table 10 for the operating voltages. Thanks for the link! But datasheet specifies a voltage range. 800 mV is just the typical one. The only problem I see is that regulator-min-microvolt should be lowered to 800 mV. regulator-max-microvolt looks correct to me. Shawn > > >> > >> Fixes: 21c4f45b335f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards") > >> Cc: stable@xxxxxxxxxxxxxxx > >> Signed-off-by: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx> > >> --- > >> arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi | 4 ++-- > >> 1 file changed, 2 insertions(+), 2 deletions(-) > >> > >> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi > >> index b12fb7ce6686..213014f59b46 100644 > >> --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi > >> +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi > >> @@ -152,8 +152,8 @@ reg_nvcc_snvs: LDO1 { > >> > >> reg_vdd_snvs: LDO2 { > >> regulator-name = "ldo2"; > >> - regulator-min-microvolt = <850000>; > >> - regulator-max-microvolt = <900000>; > >> + regulator-min-microvolt = <800000>; > >> + regulator-max-microvolt = <800000>; > >> regulator-boot-on; > >> regulator-always-on; > >> }; > >> -- > >> 2.33.0 > >>
