2023-01-20 17:43:46

by Krzysztof Kozlowski

Subject: [PATCH 2/6] arm64: dts: exynos: add ADC supply on Exynos7 Espresso

ADC requires supply and it seems LDO3 (same as on Exynos5433 TM2 boards)
fits in voltage range of 1.8 V. Use it to silence warning:

exynos7-espresso.dtb: adc@13620000: 'vdd-supply' is a required property

Signed-off-by: Krzysztof Kozlowski <[email protected]>
---
arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
index 829657c9c7ca..abb3bd700d6f 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
@@ -78,6 +78,7 @@ &watchdog {
};

&adc {
+ vdd-supply = <&ldo3_reg>;
status = "okay";
};

--
2.34.1

2023-01-28 06:53:57

by Alim Akhtar

Subject: RE: [PATCH 2/6] arm64: dts: exynos: add ADC supply on Exynos7 Espresso

> -----Original Message-----
> From: Krzysztof Kozlowski <[email protected]>
> Sent: Friday, January 20, 2023 11:01 PM
> To: Rob Herring <[email protected]>; Krzysztof Kozlowski
> <[email protected]>; Alim Akhtar
> <[email protected]>; [email protected]; linux-arm-
> [email protected]; [email protected]; linux-
> [email protected]
> Cc: Sam Protsenko <[email protected]>; Chanho Park
> <[email protected]>; Krzysztof Kozlowski
> <[email protected]>
> Subject: [PATCH 2/6] arm64: dts: exynos: add ADC supply on Exynos7
> Espresso
>
> ADC requires supply and it seems LDO3 (same as on Exynos5433 TM2 boards)
> fits in voltage range of 1.8 V. Use it to silence warning:
>
Yes, it is LDO3 for exynos7_espresso board as well.

> exynos7-espresso.dtb: adc@13620000: 'vdd-supply' is a required property
>
> Signed-off-by: Krzysztof Kozlowski <[email protected]>
> ---

Reviewed-by: Alim Akhtar <[email protected]>

> arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
> b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
> index 829657c9c7ca..abb3bd700d6f 100644
> --- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
> +++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
> @@ -78,6 +78,7 @@ &watchdog {
> };
>
> &adc {
> + vdd-supply = <&ldo3_reg>;
> status = "okay";
> };
>
> --
> 2.34.1