Messages in this thread | | | From | Heiko Thiery <> | Date | Thu, 30 Sep 2021 20:52:33 +0200 | Subject | Re: [PATCH 8/8] arm64: dts: imx8mm-kontron: Leave reg_vdd_arm always powered on |
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Hi Frieder,
Am Do., 30. Sept. 2021 um 17:57 Uhr schrieb Frieder Schrempf <frieder@fris.de>: > > From: Frieder Schrempf <frieder.schrempf@kontron.de> > > When the cpufreq driver is enabled, the buck2 regulator is kept powered on > by the dependency between the CPU nodes with 'cpu-supply' set. Without the > cpufreq driver the kernel will power off the regulator as it doesn't see > any users. This is obviously not what we want, therefore keep the regulator > powered on in any case. > > Reported-by: Heiko Thiery <heiko.thiery@gmail.com> > Fixes: 21c4f45b335f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards") > Cc: stable@vger.kernel.org > Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Heiko Thiery <heiko.thiery@gmail.com>
> --- > arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi | 1 + > 1 file changed, 1 insertion(+) > > 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 213014f59b46..c3418d263eb4 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi > @@ -105,6 +105,7 @@ reg_vdd_arm: BUCK2 { > regulator-min-microvolt = <850000>; > regulator-max-microvolt = <950000>; > regulator-boot-on; > + regulator-always-on; > regulator-ramp-delay = <3125>; > nxp,dvs-run-voltage = <950000>; > nxp,dvs-standby-voltage = <850000>; > -- > 2.33.0 >
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