ASoC: Don't reconfigure WM8350 FLL if not needed (f1e887de) · Commits · 戴 / test

sound/soc/codecs/wm8350.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -63,6 +63,8 @@ struct wm8350_data {
		struct wm8350_jack_data hpl;
		struct wm8350_jack_data hpr;
		struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
		int fll_freq_out;
		int fll_freq_in;
		};

		static unsigned int wm8350_codec_cache_read(struct snd_soc_codec *codec,
		@@ -1104,10 +1106,14 @@ static int wm8350_set_fll(struct snd_soc_dai *codec_dai,
		{
		struct snd_soc_codec *codec = codec_dai->codec;
		struct wm8350 *wm8350 = codec->control_data;
		struct wm8350_data *priv = codec->private_data;
		struct _fll_div fll_div;
		int ret = 0;
		u16 fll_1, fll_4;

		if (freq_in == priv->fll_freq_in && freq_out == priv->fll_freq_out)
		return 0;

		/* power down FLL - we need to do this for reconfiguration */
		wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4,
		WM8350_FLL_ENA \| WM8350_FLL_OSC_ENA);
		@@ -1142,6 +1148,9 @@ static int wm8350_set_fll(struct snd_soc_dai *codec_dai,
		wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_OSC_ENA);
		wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_ENA);

		priv->fll_freq_out = freq_out;
		priv->fll_freq_in = freq_in;

		return 0;
		}