serial: imx: enable the clocks only when the uart is used

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Current code opens the clocks when the uart driver is probed.
This will wastes some power if several uarts are enabled, but not really
used.

So close these clocks for uart, and enable the clocks only when
the uart is used.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Huang Shijie 2013-06-04 09:59:33 +08:00 • committed by Greg Kroah-Hartman

parent e943f58ea8

commit 28eb4274e7

1 changed files with 14 additions and 3 deletions

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drivers/tty/serial/imx.c

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