On 18/01/18 13:24, Manu Gautam wrote:
> Commit 689bf72c6e0d ("usb: dwc3: Don't reinitialize core during
> host bus-suspend/resume") updated suspend/resume routines to not
> power_off and reinit PHYs/core for host mode.
> It broke platforms that rely on DWC3 core to power_off PHYs to
> enter low power state on system suspend.
>
> Perform dwc3_core_exit/init only during host mode system_suspend/
> resume to addresses power regression from above mentioned patch
> and also allow USB session to stay connected across
> runtime_suspend/resume in host mode. While at it also replace
> existing checks for HOST only dr_mode with current_dr_role to
> have similar core driver behavior for both Host-only and DRD+Host
> configurations.
>
> Fixes: 689bf72c6e0d ("usb: dwc3: Don't reinitialize core during host bus-suspend/resume")
> Signed-off-by: Manu Gautam <mgautam@xxxxxxxxxxxxxx>
Tested to work on dra7x platform.
Reviewed-by: Roger Quadros <rogerq@xxxxxx>
--
cheers,
-roger
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
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