[PATCH] ARM: dts: stm32: Remove buck3 regulator-always-on on AV96

[Patrice CHOTARD]

HI Marek

On 9/23/22 03:31, Marek Vasut wrote:
> In case the regulator-always-on is present in regulator DT node,
> the regulator is always reconfigured to the voltage set in DT on
> probe, even if regulator_set_value() has been called before. Drop
> the property from AV96 U-Boot DT and enable the regulator manually
> in code, as the board already reconfigures the Buck3 regulator in
> code per PMIC NVM content instead.
> 
> Fixes: 0adf10a87b1 ("ARM: dts: stm32: Configure Buck3 voltage per PMIC NVM on Avenger96")
> Signed-off-by: Marek Vasut <marex at denx.de>
> ---
> Cc: Patrice Chotard <patrice.chotard at foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
> ---
>  arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi | 4 ++++
>  board/dhelectronics/dh_stm32mp1/board.c              | 1 +
>  2 files changed, 5 insertions(+)
> 
> diff --git a/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi
> index 5bed53e3fdb..b6fceb9ad58 100644
> --- a/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi
> @@ -102,6 +102,10 @@
>  	hnp-srp-disable;
>  };
>  
> +&vdd {
> +	/delete-property/ regulator-always-on;
> +};
> +
>  &vdd_io {
>  	u-boot,dm-spl;
>  };
> diff --git a/board/dhelectronics/dh_stm32mp1/board.c b/board/dhelectronics/dh_stm32mp1/board.c
> index 9188f5381eb..b0284609183 100644
> --- a/board/dhelectronics/dh_stm32mp1/board.c
> +++ b/board/dhelectronics/dh_stm32mp1/board.c
> @@ -595,6 +595,7 @@ static void board_init_regulator_av96(void)
>  
>  	/* Adjust Buck3 per preconfigured PMIC voltage from NVM. */
>  	regulator_set_value(rdev, uv);
> +	regulator_set_enable(rdev, true);
>  }
>  
>  static void board_init_regulator(void)

Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>

Patrice