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Commit ea7b4378 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Suppress noop SYSCLK updates in WM8915 



Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@ti.com>
parent 84abd1b3

sound/soc/codecs/wm8915.c

+6 −0
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ struct wm8915_priv { 
	int ldo1ena;



	int sysclk;

	int sysclk_src;



	int fll_src;

	int fll_fref;
@@ -1834,6 +1835,9 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai, 
	int src;

	int old;



	if (freq == wm8915->sysclk && clk_id == wm8915->sysclk_src)

		return 0;



	/* Disable SYSCLK while we reconfigure */

	old = snd_soc_read(codec, WM8915_AIF_CLOCKING_1) & WM8915_SYSCLK_ENA;

	snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
@@ -1885,6 +1889,8 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai, 
	snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,

			    WM8915_SYSCLK_ENA, old);



	wm8915->sysclk_src = clk_id;



	return 0;

}