[PATCH v2] riscv: dts: starfive: Set EMMC vqmmc maximum voltage to 3.3V on JH7110 boards

[Conor Dooley]

On Wed, Jun 12, 2024 at 06:33:31PM +0800, Shengyu Qu wrote:
> Currently, for JH7110 boards with EMMC slot, vqmmc voltage for EMMC is
> fixed to 1.8V, while the spec needs it to be 3.3V on low speed mode and
> should support switching to 1.8V when using higher speed mode. Since
> there are no other peripherals using the same voltage source of EMMC's
> vqmmc(ALDO4) on every board currently supported by mainline kernel,

I should've asked last time around, does the star64 also support 3.3
volts?

> regulator-max-microvolt of ALDO4 should be set to 3.3V.
> 
> Cc: stable at vger.kernel.org
> Signed-off-by: Shengyu Qu <wiagn233 at outlook.com>
> Fixes: 7dafcfa79cc9 ("riscv: dts: starfive: enable DCDC1&ALDO4 node in axp15060")
> ---
>  arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> index 37b4c294ffcc..c7a549ec7452 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> @@ -244,7 +244,7 @@ emmc_vdd: aldo4 {
>  				regulator-boot-on;
>  				regulator-always-on;
>  				regulator-min-microvolt = <1800000>;
> -				regulator-max-microvolt = <1800000>;
> +				regulator-max-microvolt = <3300000>;
>  				regulator-name = "emmc_vdd";
>  			};
>  		};
> -- 
> 2.39.2
> 
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