[RESEND PATCH] usb: gadget: at91_udc: move prepare clk into process context

On Wed, Nov 19, 2014 at 04:37:27PM +0100, Nicolas Ferre wrote:

From: Ronald Wahl <redacted>

Commit 7628083227b6bc4a7e33d7c381d7a4e558424b6b (usb: gadget: at91_udc:
prepare clk before calling enable) added clock preparation in interrupt
context. This is not allowed as it might sleep. Also setting the clock
rate is unsafe to call from there for the same reason. Move clock
preparation and setting clock rate into process context (at91udc_probe).

Signed-off-by: Ronald Wahl <redacted>
Acked-by: Alexandre Belloni <redacted>
Acked-by: Boris Brezillon <redacted>
Acked-by: Nicolas Ferre <redacted>
Cc: Felipe Balbi <redacted>
Cc: <redacted> # v3.17+
---
Hi Felipe,

I forgot to answer you on this patch. So I resend it now with the proper
"stable" tag. You can also queue it during this -rc phase if you feel it is
still possible.

I think it's late for v3.18, so it'll go on v3.19 and get backported to
3.17 and 3.18. Sorry :-s

cheers

-- 
balbi
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