> Subject: [PATCH v1 2/2] arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2
> voltage range
>
> Correct ldo1 voltage range from wrong high group(3.0v~3.3v) to low group
> (1.6v~1.9v) because the ldo1 should be 1.8v. Actually, two voltage groups
> have been supported at bd718x7-regulator driver, hence, just corrrect the
> voltage range to 1.6v~3.3v. For ldo2@0.8v, correct voltage range too.
> Otherwise, ldo1 would be kept @3.0v and ldo2@0.9v which violate i.mx8mm
> datasheet as the below warning log in kernel:
>
> [ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV
> [ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV
>
> Signed-off-by: Robin Gong <yibin.gong@xxxxxxx>
> ---
> arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts | 4 ++--
> arch/arm64/boot/dts/freescale/imx8mn-evk.dts | 9 +++++++++
> 2 files changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
> b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
> index d07e0e6..a1e5483 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
> @@ -113,7 +113,7 @@
>
> ldo1_reg: LDO1 {
> regulator-name = "LDO1";
> - regulator-min-microvolt = <3000000>;
> + regulator-min-microvolt = <1600000>;
> regulator-max-microvolt = <3300000>;
> regulator-boot-on;
> regulator-always-on;
> @@ -121,7 +121,7 @@
>
> ldo2_reg: LDO2 {
> regulator-name = "LDO2";
> - regulator-min-microvolt = <900000>;
> + regulator-min-microvolt = <800000>;
> regulator-max-microvolt = <900000>;
> regulator-boot-on;
> regulator-always-on;
> diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
> b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
> index 61f3519..117ff4b 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
> @@ -13,6 +13,15 @@
> compatible = "fsl,imx8mn-evk", "fsl,imx8mn"; };
>
> +&ecspi1 {
> + status = "okay";
> +spidev0: spi@0 {
> + compatible = "ge,achc";
> + reg = <0>;
> + spi-max-frequency = <1000000>;
> + };
> +};
> +
This was added by mistake?
Regards,
Peng.
> &A53_0 {
> /delete-property/operating-points-v2;
> };
> --
> 2.7.4
