[ARM] OMAP3: move USBHOST SAR handling from clock framework to powerdomain layer
Remove usbhost_sar_fclk from the OMAP3 clock framework. The bit that the clock was tweaking doesn't actually enable or disable a clock; it controls whether the hardware will save and restore USBHOST state when the powerdomain changes state. (That happens to coincidentally enable a clock for the duration of the operation, hence the earlier confusion.) In place of the clock, mark the USBHOST powerdomain as supporting hardware save-and-restore functionality. linux-omap source commit is f3ceac86a9d425d101d606d87a5af44afef27179. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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