On Tue, 2 Sept 2025 at 05:33, Peng Fan <peng.fan@nxp.com> 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@oss.nxp.com/
>
> More old discussions:
> https://lore.kernel.org/linux-pm/20250311083239.3336439-1-peng.fan@oss.nxp.com/
>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
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@nxp.com
>
> ---
> 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@nxp.com>
>