On Thu, Jun 02, 2022 at 01:54:32PM +0530, Krishna Kurapati wrote: > Avoiding phy powerdown in host mode when dwc3 is wakeup capable, so that > it can be wake up by devices. Keep usb30_prim gdsc active to retain > controller status during suspend/resume. > > Changes in v20: > Fixed nitpicks in dwc3 qcom driver. > Fixed code changes in dwc3 core driver. > > Changes in v19: > Fixed dwc3 driver code changes. > > Changes in v18: > Fixed minor nit picks in v17 reported by Matthias. > > Changes in v17: > Moved the speed check to glue driver. > Powering down phy's solely based on dwc3 wakeup capability. > Configuring the interrupt functions appropriately. > > Changes in v16: > Added changes to power down the phy's during suspend only if dwc3 > is not wakeup capable. > > Changes in v15: > Added patch to enable wakeup for xhci-plat based on children wakeup status. > Used device_wakeup_path instead of device_children_wakeup_capable > > Changes in v14: > Added patch for device_children_wakeup_capable. > Used device_children_wakeup_capable instead of usb_wakeup_enabled_descendants. > Fixed minor nit picks in v13 reported by Matthias. > > Changes in v13: > Moved the dt bindings patch to start. > Changed dwc3_set_phy_speed_mode to dwc3_check_phy_speed_mode. > Check wakep-source property for dwc3 core node to set the > wakeup capability. Drop the device_init_wakeup call from > runtime suspend and resume. > Added GENPD_FLAG_RPM_ALWAYS_ON and set GENPD_FLAG_ALWAYS_ON if > wakeup is supported. > > Changes in v12: > Squashed PATCH 1/5 and 2/5 of v11. > Added dt bindings and device tree entry for wakeup-source property > for dwc3 core node. > Dropped redundant phy_set_mode call. > > > Changes in v11: > Moving back to v8 version > https://patchwork.kernel.org/project/linux-arm-msm/cover/1624882097-23265-1-git-send-email-sanm@xxxxxxxxxxxxxx > as we are getting interrupts during suspend > when enabling both DP hs phy irq and DM hs phy irq. > Moved the set phy mode function to dwc3/core.c from xhci-plat.c > We didn't find any other option other than accessing xhci from dwc. > > Changes in v10: > PATCH 1/6: Change device_set_wakeup_capable to device_set_wakeup_enable > PATCH 2/6: Remove redundant else part in dwc3_resume_common > PATCH 4/6: Change the irg flags > PATCH 5/6: Set flag GENPD_FLAG_ALWAYS_ON > PATCH 6/6: Remove disable interrupts function and enable > interrupts in probe. > > > Changes in v9: > Checking with device_may_makeup property instead of phy_power_off flag. > Changed the IRQ flags and removed hs_phy_mode variable. > > Changes in v8: > Moved the dwc3 suspend quirk code in dwc3/host.c to xhci-plat.c > Checking phy_power_off flag instead of usb_wakeup_enabled_descendants > to keep gdsc active. > > Changes in v7: > Change in commit text and message in PATCH 1/5 and PATCH 5/5 > as per Matthias suggestion. > Added curly braces for if and else if sections in PATCH 4/5. > > 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): > dt-bindings: usb: dwc3: Add wakeup-source property support > 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: Keep power domain on to retain controller status > > .../devicetree/bindings/usb/snps,dwc3.yaml | 5 + > drivers/usb/dwc3/core.c | 9 +- > drivers/usb/dwc3/dwc3-qcom.c | 140 +++++++++++++++------ > 3 files changed, 108 insertions(+), 46 deletions(-) > This series looks good to me. I think it is ready for merge unless Felipe has any concerns. Thanks, Pavan
