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ASoC: wm8994: Slightly optimize configure_clock
authorAxel Lin <axel.lin@gmail.com>
Tue, 4 Oct 2011 12:07:03 +0000 (20:07 +0800)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Tue, 4 Oct 2011 12:09:55 +0000 (13:09 +0100)
commit04f45c493ac6de7c3d1864c3193c225424c25b7d
tree2174e986c852b3c5229c70f053541d774311e3a4tree | snapshot (tar.gz zip)
parentb1b6cffeb71d363693d15444c79d828153a70865commit | diff
ASoC: wm8994: Slightly optimize configure_clock

snd_soc_update_bits() will only write new register value
if the old value is different from the new value.
In additional, snd_soc_update_bits() returns 0 for no change.
No need to read WM8994_CLOCKING_1 register before calling snd_soc_update_bits().

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
sound/soc/codecs/wm8994.c diff | blob | blame | history