[PATCH v1 0/4] Improve USB FIFO handling and enable UMS mode on PRTT1L boards

Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> · Wed, 3 May 2023 12:19:15 +0200

This patch series addresses the initial issue of USB Mass Storage (UMS)
mode not working on PRTT1L boards by improving USB FIFO handling in the
DWC2 driver, fixing multiplier handling in endpoint setup, and adding
support for multiple gadgets, including UMS, fastboot, and ACM gadgets.
The changes include porting support for USB FIFO devicetree properties
and FIFO configuration from Linux kernel v6.3. These patches were tested
on a PRTT1C board (based on stm32mp151) with the following command:
usbgadget -S '/dev/mmc1(mmc1)' -s -A '' -b

Michael Grzeschik (1):
  usb: dwc2: fix multiplier handling in endpoint setup

Oleksij Rempel (3):
  usb: dwc2: Port support for USB FIFO devicetree properties from Linux
    v6.3
  usb: dwc2: Port FIFO configuration sync from Linux v6.3
  arm: dts: stm32mp151-prtt1l: Configure USB gadget FIFOs for multiple
    gadgets support

 arch/arm/dts/stm32mp151-prtt1l.dtsi |  1 +
 drivers/usb/dwc2/core.c             | 27 ++++++++++++++++++++
 drivers/usb/dwc2/dwc2.c             |  1 +
 drivers/usb/dwc2/dwc2.h             |  1 +
 drivers/usb/dwc2/gadget.c           | 38 +++++++++++------------------
 5 files changed, 44 insertions(+), 24 deletions(-)

-- 
2.39.2