Commit 55c6f4cb authored Nov 02, 2012 by Eric Millbrandt Committed by Mark Brown Nov 06, 2012

ASoC: wm8978: pll incorrectly configured when codec is master



When MCLK is supplied externally and BCLK and LRC are configured as outputs
(codec is master), the PLL values are only calculated correctly on the first
transmission.  On subsequent transmissions, at differenct sample rates, the
wrong PLL values are used.  Test for f_opclk instead of f_pllout to determine
if the PLL values are needed.

Signed-off-by: Eric Millbrandt <emillbrandt@dekaresearch.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

parent 8f0d8163

sound/soc/codecs/wm8978.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -782,7 +782,7 @@ static int wm8978_hw_params(struct snd_pcm_substream *substream,
		wm8978->mclk_idx = -1;
		f_sel = wm8978->f_mclk;
		} else {
		if (!wm8978->f_pllout) {
		if (!wm8978->f_opclk) {
		/* We only enter here, if OPCLK is not used */
		int ret = wm8978_configure_pll(codec);
		if (ret < 0)