Re: [PATCH v2 0/5] usb: dwc2: fix low power issues found on stm32mp1

From: Thinh Nguyen

Date: Tue Nov 03 2026 - 19:24:45 EST


On Tue, Oct 13, 2026, Fabrice Gasnier wrote:
> This series addresses several hang, bad_irq or re-initialisation issues
> found on stm32mp1 when going to system low power (stop mode):
> - First two fixes can be reproduced on stm32mp13 DK board, stm32mp15 DK
> and EVAL boards.
> - Subsequent fixes can be reproduced on stm32mp15 EVAL board that uses
> an external Vbus regulator and stm32 dedicated detection logic.
>
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
> ---
> Changes in v2:
> - Several fixes or commit messages updates since Sashiko review (see
> changelog in each patch).
> - Add Thinh instead of Minas to the recipients
> - Link to v1: https://urldefense.com/v3/__https://patch.msgid.link/20261008-dwc2-low-power-fixes-stm32-v1-0-5b303df762e6@xxxxxxx.com__;!!A4F2R9G_pg!chy5si9oMojTv0_0lJ0iAewsPrcfOz3WO0slrIekHu97WyIQ1vgfDuiE0w_VwGVT1leqEeNpi7vi4T0AcT7jiblhz6CzxRlA$
>
> ---
> Fabrice Gasnier (5):
> usb: dwc2: fix recovery after PM domain off
> usb: dwc2: fix a possible interrupt storm on stm32mp1
> usb: dwc2: hcd: fix possible successive vbus supply enables
> usb: dwc2: hcd: don't disable/enable external vbus by system suspend/resume
> usb: dwc2: platform: fix stm32mp15 detection logic power management
>
> drivers/usb/dwc2/core.c | 1 -
> drivers/usb/dwc2/core.h | 2 -
> drivers/usb/dwc2/core_intr.c | 9 +-
> drivers/usb/dwc2/hcd.c | 12 +--
> drivers/usb/dwc2/platform.c | 228 ++++++++++++++++++++++---------------------
> 5 files changed, 128 insertions(+), 124 deletions(-)
> ---
> base-commit: b634294f400bc2500de5acd9c4961649c8d904c9
> change-id: 20261007-dwc2-low-power-fixes-stm32-0c1e5e68b252
>
> Best regards,
> --
> Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
>

Can you address Sashiko's new review comments?

Thanks,
Thinh