2015-12-02 10:06:23

by Nicolas Ferre

Subject: [PATCH] ARM: at91/dt: add always-on to 1.8V regulator

As the SDHCI controller needs the 1.8V line to be always enabled for some eMMC
configurations, set the proper "regulator-always-on" property to the board DTS
files.
Note that the sdhci classical regulator definitions doesn't suit our controller
for this 1.8V purpose.

Signed-off-by: Nicolas Ferre <[email protected]>
---
arch/arm/boot/dts/at91-sama5d2_xplained.dts | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index ad6de73ed5a5..e74df327cdd3 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -184,6 +184,7 @@
regulator-name = "VDD_SDHC_1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+ regulator-always-on;
};
};
};
--
2.1.3

2015-12-02 10:07:15

by Ludovic Desroches

Subject: Re: [PATCH] ARM: at91/dt: add always-on to 1.8V regulator

On Wed, Dec 02, 2015 at 11:06:40AM +0100, Nicolas Ferre wrote:
> As the SDHCI controller needs the 1.8V line to be always enabled for some eMMC
> configurations, set the proper "regulator-always-on" property to the board DTS
> files.
> Note that the sdhci classical regulator definitions doesn't suit our controller
> for this 1.8V purpose.
>
> Signed-off-by: Nicolas Ferre <[email protected]>

Acked-by: Ludovic Desroches <[email protected]>

> ---
> arch/arm/boot/dts/at91-sama5d2_xplained.dts | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
> index ad6de73ed5a5..e74df327cdd3 100644
> --- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
> +++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
> @@ -184,6 +184,7 @@
> regulator-name = "VDD_SDHC_1V8";
> regulator-min-microvolt = <1800000>;
> regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> };
> };
> };
> --
> 2.1.3
>