[PATCH] ARM: dts: stm32: Increase CPU core voltage on STM32MP13xx DHCOR SoM

[Alexandre TORGUE]

Hi Marek

On 11/5/24 23:46, Marek Vasut wrote:
> The STM32MP13xx DHCOR DHSBC is populated with STM32MP13xx part capable
> of 1 GHz operation, increase the CPU core voltage to 1.35 V to make
> sure the SoC is stable even if the blobs unconditionally force the CPU
> to 1 GHz operation.
> 
> It is not possible to make use of CPUfreq on the STM32MP13xx because
> the SCMI protocol 0x13 is not implemented by upstream OpTee-OS which
> is the SCMI provider.
> 
> Fixes: 6331bddce649 ("ARM: dts: stm32: Add support for STM32MP13xx DHCOR SoM and DHSBC board")
> Signed-off-by: Marek Vasut <marex at denx.de>
> ---
> Cc: Alexandre Torgue <alexandre.torgue at foss.st.com>
> Cc: Conor Dooley <conor+dt at kernel.org>
> Cc: Krzysztof Kozlowski <krzk+dt at kernel.org>
> Cc: Marek Vasut <marex at denx.de>
> Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
> Cc: Rob Herring <robh at kernel.org>
> Cc: devicetree at vger.kernel.org
> Cc: kernel at dh-electronics.com
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-stm32 at st-md-mailman.stormreply.com
> ---
>   arch/arm/boot/dts/st/stm32mp13xx-dhcor-som.dtsi | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/st/stm32mp13xx-dhcor-som.dtsi b/arch/arm/boot/dts/st/stm32mp13xx-dhcor-som.dtsi
> index 07133bd82efa6..8630de147a52b 100644
> --- a/arch/arm/boot/dts/st/stm32mp13xx-dhcor-som.dtsi
> +++ b/arch/arm/boot/dts/st/stm32mp13xx-dhcor-som.dtsi
> @@ -85,8 +85,8 @@ regulators {
>   
>   			vddcpu: buck1 { /* VDD_CPU_1V2 */
>   				regulator-name = "vddcpu";
> -				regulator-min-microvolt = <1250000>;
> -				regulator-max-microvolt = <1250000>;
> +				regulator-min-microvolt = <1350000>;
> +				regulator-max-microvolt = <1350000>;
>   				regulator-always-on;
>   				regulator-initial-mode = <0>;
>   				regulator-over-current-protection;


Applied on stm32-next.

Thanks!!
Alex