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ASoC: arizona: Suppress noop FLL updates
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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2 changed files with 8 additions and 0 deletions
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@ -937,6 +937,9 @@ int arizona_set_fll(struct arizona_fll *fll, int source,
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bool ena;
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int ret;
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if (fll->fref == Fref && fll->fout == Fout)
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return 0;
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ret = regmap_read(arizona->regmap, fll->base + 1, ®);
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if (ret != 0) {
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arizona_fll_err(fll, "Failed to read current state: %d\n",
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@ -1014,6 +1017,9 @@ int arizona_set_fll(struct arizona_fll *fll, int source,
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if (ret == 0)
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arizona_fll_warn(fll, "Timed out waiting for lock\n");
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fll->fref = Fref;
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fll->fout = Fout;
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return 0;
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}
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EXPORT_SYMBOL_GPL(arizona_set_fll);
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@ -191,6 +191,8 @@ struct arizona_fll {
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unsigned int vco_mult;
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struct completion lock;
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struct completion ok;
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unsigned int fref;
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unsigned int fout;
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char lock_name[ARIZONA_FLL_NAME_LEN];
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char clock_ok_name[ARIZONA_FLL_NAME_LEN];
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