Re: [PATCH V2 6/8] usb: musb: Offmode fix for idle path

[Kevin Hilman <khilman-1D3HCaltpLuhEniVeURVKkEOCMrvLtNR@public.gmane.org>]

"Kalliguddi, Hema" <hemahk-l0cyMroinI0@public.gmane.org> writes:

[...]

>>>
>>> Changed the usb sysconfig settings as per the usbotg functional spec.
>>> When the device is not active, configure to force idle and 
>>force standby mode.
>>> When it is being used, configure in smart standby and smart 
>>idle mode.
>>> So while attempting to coreoff the usb is configured to 
>>force standby and
>>> force idle mode, after wakeup configured in smart idle and 
>>smart standby.
>>
>>Is this valid for OMAP3 and OMAP4? I checked quickly the OMAP4 
>>TRM vB in 
>>the USB_OTG chapter related to PM (23.13.4.2 Power-Management), and I 
>>cannot find any note regarding that specific programming model.
>>Could give us reference to the documentation that contains the details 
>>about that?
>>
>>Benoit
>>
>
> This is valid for both OMAP3 and OMAP4. You can find this in 24.1.5.4 section
> With different modes. When not used with any application the mode has to be programmed 
> is force idle and force standby. What I observed is that without this USB was 
> blocking the coreoff.
>
> http://focus.ti.com/pdfs/wtbu/SWPU223D_Final_EPDF_06_07_2010.pdf 
>

For the next rev, please include links to public docs in the changelog.

Kevin
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