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ASoC: Add source argument to PLL configuration

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More and more devices feature PLLs and FLLs with the ability to select
between multiple input clocks. In order to better support these devices
a new argument, source, has been added to the set_pll() configuration
API. Using set_clkdiv() is often difficult due to the need to stop the
PLL/FLL before any reconfiguration can be done.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown
2009-09-05 18:52:16 +01:00
parent 367da1527a
commit 85488037bb
21 changed files with 40 additions and 36 deletions
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8
sound/soc/soc-core.c
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@ -2197,16 +2197,18 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
* snd_soc_dai_set_pll - configure DAI PLL.
* @dai: DAI
* @pll_id: DAI specific PLL ID
* @source: DAI specific source for the PLL
* @freq_in: PLL input clock frequency in Hz
* @freq_out: requested PLL output clock frequency in Hz
*
* Configures and enables PLL to generate output clock based on input clock.
*/
int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
int pll_id, unsigned int freq_in, unsigned int freq_out)
int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
unsigned int freq_in, unsigned int freq_out)
{
if (dai->ops && dai->ops->set_pll)
return dai->ops->set_pll(dai, pll_id, freq_in, freq_out);
return dai->ops->set_pll(dai, pll_id, source,
freq_in, freq_out);
else
return -EINVAL;
}