[PATCH v2 0/3] ARM: dts: stm32: Fix STM32MP1 ev and dk USB onboard HUB supplies

Alexandre TORGUE alexandre.torgue at foss.st.com
Fri Sep 11 09:33:25 PDT 2026


Salut Fabrice

On 8/21/26 16:57, Fabrice Gasnier wrote:
> Some STM32 boards use Microchip USB2514 HUB. Since vdda supply has been
> added, the regulator framework wrongly associates the 'vdda' supply
> dedicated to ADC, so the wrong regulator is referenced.
> Only the 3v3 regulator is used to supply both the digital and the analog
> part of the HUB.
> 
> Before this series:
> cat /sys/kernel/debug/regulator/regulator_summary
> ...
>      v3v3                         10    9      0  normal  3300mV     0mA  3300mV  3300mV
> ...
>         5800d000.usb:hub at 1-vdd     1                                 0mA     0mV     0mV
> ...
>      vdda                          1    1      0 unknown  2900mV     0mA  2900mV  2900mV
>         5800d000.usb:hub at 1-vdda    1                                 0mA     0mV     0mV
> 
> After:
>      v3v3                         11   10      0  normal  3300mV     0mA  3300mV  3300mV
> ...
>         5800d000.usb:hub at 1-vdda    1                                 0mA     0mV     0mV
>         5800d000.usb:hub at 1-vdd     1                                 0mA     0mV     0mV
> ...
>      vdda                          0    0      0 unknown  2900mV     0mA  2900mV  2900mV
> 
> ---
> Changes in v2:
> - Overwrite vdda-supply in stm32mp157f-dk2-scmi as pointed by Sashiko
> - Link to v1: https://patch.msgid.link/20260821-usb_fixes_vdda-v1-v1-0-0c213062165f@foss.st.com
> 
> To: Rob Herring <robh at kernel.org>
> To: Krzysztof Kozlowski <krzk+dt at kernel.org>
> To: Conor Dooley <conor+dt at kernel.org>
> To: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
> To: Alexandre Torgue <alexandre.torgue at foss.st.com>
> To: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> To: Catalin Popescu <catalin.popescu at leica-geosystems.com>
> Cc: devicetree at vger.kernel.org
> Cc: linux-stm32 at st-md-mailman.stormreply.com
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-kernel at vger.kernel.org
> 
> ---
> Fabrice Gasnier (3):
>        ARM: dts: stm32: fix vdda supply for onboard hub on stm32mp15 DK boards
>        ARM: dts: stm32: fix vdda supply for onboard hub on stm32mp157c-ev1
>        ARM: dts: stm32: fix vdda supply for onboard hub on stm32mp135f-dk
> 
>   arch/arm/boot/dts/st/stm32mp135f-dk.dts        | 1 +
>   arch/arm/boot/dts/st/stm32mp157c-ev1.dts       | 1 +
>   arch/arm/boot/dts/st/stm32mp157f-dk2-scmi.dtsi | 1 +
>   arch/arm/boot/dts/st/stm32mp15xx-dkx.dtsi      | 1 +
>   4 files changed, 4 insertions(+)
> ---
> base-commit: 8d3ae59288f1e7d58d76558a6ee96d533bc5019f
> change-id: 20260821-usb_fixes_vdda-v1-0e5eea790b2a
> 
> Best regards,
> --
> Fabrice Gasnier <fabrice.gasnier at foss.st.com>
> 

Series applied on stm32-next.

Regards
Alex



More information about the linux-arm-kernel mailing list