From: Nimrod Andy <B38611@freescale.com>
Date: Tue, 20 May 2014 05:22:51 +0000 (+0800)
Subject: net: fec: optimize the clock management to save power
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~36^2~174
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e8fcfcd5684a;p=pandora-kernel.git

net: fec: optimize the clock management to save power

Add below clock management to save fec power:
- After probe, disable all clocks incluing ipg, ahb, enet_out, ptp clock.
- Open ethx interface enable necessary clocks.
  Close ethx interface disable all clocks.

The patch also encapsulates the all enet clocks enable/disable to
.fec_enet_clk_enable(), which can reduce the repetitional code in
driver.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Acked-by: Frank Li <Frank.li@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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