[0/3] STM32MP15 OTG params updates

Message

Amelie Delaunay Nov. 23, 2020, 9:01 a.m. UTC

This patchset brings some updates on STM32MP15 OTG HS and FS.
It sets ahbcfg parameter for both HS and FS as the value reported by the
hardware is not recommended.
It also disables Link Power Management on OTG HS because with some Host
controllers (at least seen with some USB 3.2 Gen2 controllers), OTG doesn't
succeed to exit L1 state.
It also enables FS/LS PHY clock selection when the Core is in FS Host mode,
to have 6MHz PHY clock when the connected device is LS, and 48Mhz PHY clock
otherwise. 

Amelie Delaunay (3):
  usb: dwc2: set ahbcfg parameter for STM32MP15 OTG HS and FS
  usb: dwc2: enable FS/LS PHY clock select on STM32MP15 FS OTG
  usb: dwc2: disable Link Power Management on STM32MP15 HS OTG

 drivers/usb/dwc2/params.c | 8 ++++++++
 1 file changed, 8 insertions(+)