On Tue, 2 Sept 2025 at 05:33, Peng Fan <peng.fan@xxxxxxx> wrote: > > This is pick up of [1] which does not have response in about 5 months. Sorry, I have planned to have a look at this, but just never got to it. > This V2 patchset > - includes usb driver changes(patch 2,3) to give people a full picture on how it is used. > - Rebased next-20250729 to resolve conflicts > > To i.MX95, USB2 and USB3 are in HSIOMIX, but there is always on logic > to make USB2 and USB3 has wakeup capability when HSIOMIX power domain > is in off state. Otherwise the HSIOMIX will be kept on when > USB2 and USB3 are configured to be wakeup source and Linux suspended. > With this patchset, HSIOMIX could be powered off and Linux could still > be woke up by USB hotplug event. > > Patch 1 introduces device_set/get_out_band_wakeup > Patch 2 and 3 are drivers changes to use device_set_out_band_wakeup > > [1]https://lore.kernel.org/linux-pm/20250311083239.3336439-1-peng.fan@xxxxxxxxxxx/ > > More old discussions: > https://lore.kernel.org/linux-pm/20250311083239.3336439-1-peng.fan@xxxxxxxxxxx/ > > Signed-off-by: Peng Fan <peng.fan@xxxxxxx> Overall I think the series looks nice, but I will make some more thinking of this in the next few days and come back with some proper comments, at latest in the middle of next week. Kind regards Uffe > --- > Changes in v3: > - Add a new patch from Xu Yang to detach power domain for ci hdrc > - Add A-b for patch 4 > - Link to v2: https://lore.kernel.org/r/20250801-pm-v2-0-97c8fb2a433c@xxxxxxx > > --- > Peng Fan (3): > pmdomain: core: Introduce device_set/get_out_band_wakeup() > usb: chipidea: ci_hdrc_imx: Set out of band wakeup for i.MX95 > usb: dwc3: imx8mp: Set out of band wakeup for i.MX95 > > Xu Yang (1): > usb: chipidea: core: detach power domain for ci_hdrc platform device > > drivers/pmdomain/core.c | 6 ++++-- > drivers/usb/chipidea/ci_hdrc_imx.c | 8 ++++++++ > drivers/usb/chipidea/core.c | 3 +++ > drivers/usb/dwc3/dwc3-imx8mp.c | 4 ++++ > include/linux/pm.h | 1 + > include/linux/pm_wakeup.h | 17 +++++++++++++++++ > include/linux/usb/chipidea.h | 1 + > 7 files changed, 38 insertions(+), 2 deletions(-) > --- > base-commit: 1b09efec32046a9c78cfecc46a26b1b139a3e8a8 > change-id: 20250729-pm-243ff7097e44 > > Best regards, > -- > Peng Fan <peng.fan@xxxxxxx> >
