c81a772baaa2e65986864c30a9bf503fd9e04
parent aef35104a9e5b8555cdaeebd4563df9921f6d605
author Shawn Guo <shawn.guo@linaro.org> 1342160134 +0800
committer Shawn Guo <shawn.guo@linaro.org> 1345178109 +0800

ARM: mxs: tx28: reset fec phy for device tree boot

For non-DT boot, function tx28_add_fec0 configures all ENET0 pins
into gpio mode for resetting fec phy, and then reconfigures those pins
into ENET function after that.

For DT boot, all the pin configuration is done by pinctrl subsystem.
Ideally, when gpio_request gets called, GPIO subsystem should call
pinctrl to configure pins into gpio mode automatically, and have pins
freed up from pinctrl subsystem when gpio_free is called.  But right
now, this cooperation between gpio and pinctrl hasn't been available.
As the result, we have to explicitly call pinctrl_get_select and
pinctrl_put for device tree boot.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Lothar Waßmann <LW@KARO-electronics.de>
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