[PATCH v6 0/5] USB DWC3 host wake up support from system suspend

From: Sandeep Maheswaram
Date: Fri Apr 16 2021 - 06:02:48 EST

Avoiding phy powerdown in host mode when wakeup capable devices are
connected, so that it can be wake up by devices.
Set GENPD_FLAG_ACTIVE_WAKEUP flag to keep usb30_prim gdsc active
when wakeup capable devices are connected to the host.

Changes in v6:
Addressed comments in host.c and core.c
Separated the patches in dwc3-qcom.c to make it simple.
Dropped wakeup-source change as it is not related to this series.

Changes in v5:
Added phy_power_off flag to check presence of wakeup capable devices.
Dropped patch[v4,4/5] as it is present linux-next.
Addressed comments in host.c and dwc3-qcom.c.

Changes in v4:
Addressed Matthias comments raised in v3.

Changes in v3:
Removed need_phy_for_wakeup flag and by default avoiding phy powerdown.
Addressed Matthias comments and added entry for DEV_SUPERSPEED.
Added suspend_quirk in dwc3 host and moved the dwc3_set_phy_speed_flags.
Added wakeup-source dt entry and reading in dwc-qcom.c glue driver.

Changes in v2:
Dropped the patch in clock to set GENPD_FLAG_ACTIVE_WAKEUP flag and
setting in usb dwc3 driver.
Separated the core patch and glue driver patch.
Made need_phy_for_wakeup flag part of dwc structure and
hs_phy_flags as unsgined int.
Adrressed the comment on device_init_wakeup call.
Corrected offset for reading portsc register.
Added pacth to support wakeup in xo shutdown case.

Sandeep Maheswaram (5):
usb: dwc3: host: Add suspend_quirk for dwc3 host
usb: dwc3: core: Host wake up support from system suspend
usb: dwc3: qcom: Add helper functions to enable,disable wake irqs
usb: dwc3: qcom: Configure wakeup interrupts during suspend
usb: dwc3: qcom: Set genpd active wakeup flag for usb gdsc

drivers/usb/dwc3/core.c | 7 ++--
drivers/usb/dwc3/core.h | 3 ++
drivers/usb/dwc3/dwc3-qcom.c | 85 ++++++++++++++++++++++++++++----------------
drivers/usb/dwc3/host.c | 59 ++++++++++++++++++++++++++++++
4 files changed, 122 insertions(+), 32 deletions(-)

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