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SubjectRe: [PATCH 3/9] arm64: dts: allwinner: pinebook: Remove unused AXP803 regulators
On Sun, Jan 19, 2020 at 10:30:58AM -0600, Samuel Holland wrote:
> The Pinebook does not use the CSI bus on the A64. In fact it does not
> use GPIO port E for anything at all. Thus the following regulators are
> not used and do not need voltages set:
>
> - ALDO1: Connected to VCC-PE only
> - DLDO3: Not connected
> - ELDO3: Not connected
>
> Signed-off-by: Samuel Holland <samuel@sholland.org>
> ---
> .../boot/dts/allwinner/sun50i-a64-pinebook.dts | 16 +---------------
> 1 file changed, 1 insertion(+), 15 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
> index ff32ca1a495e..8e7ce6ad28dd 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
> @@ -202,9 +202,7 @@
> };
>
> &reg_aldo1 {
> - regulator-min-microvolt = <2800000>;
> - regulator-max-microvolt = <2800000>;
> - regulator-name = "vcc-csi";
> + regulator-name = "vcc-pe";
> };

If it's connected to PE, I'd expect the voltage to be at 3.3v?

Maxime
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