Not all revisions have all the clocks so get the necessary clocks
based on hardware revision.

This should avoid un-necessary clk_get failure messages that were
observed earlier.

CC: Lee Jones <redacted>
CC: Samuel Ortiz <redacted>
Signed-off-by: Roger Quadros <redacted>
---
 drivers/mfd/omap-usb-host.c | 43 ++++++++++++++++++++++++++++++++-----------
 1 file changed, 32 insertions(+), 11 deletions(-)

What about patches 1 and 2. Are these safe to go in alone?

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
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