Hello. On 25-11-2013 23:39, Daniel Mack wrote:
It appears not all platforms featuring a musb core need to save the musb core registers at suspend time and restore them on resume.
The dsps platform does, however. So add a bit in struct musb_hdrc_platform_data to let platforms specify their need of such action being taken.
Signed-off-by: Daniel Mack <zonque@xxxxxxxxx>
[...]
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h index eb50525..e5a581c 100644 --- a/include/linux/usb/musb.h +++ b/include/linux/usb/musb.h @@ -99,6 +99,9 @@ struct musb_hdrc_platform_data { /* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */ u8 mode; + /* should the musb core restore registers after suspend? */ + u8 restore_after_suspend:1; +
Better placement seems to be with 'extvbus' field which is also 1-bit -- that would save space in the structure.
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