ASoC: fsl-asoc-card: use integer type for fll_id and pll_id

As the pll_id and pll_id can be zero (WM8960_SYSCLK_AUTO)
with the commit 2bbc2df ("ASoC: wm8960: Make automatic the
default clocking mode")

Then the machine driver will skip to call set_sysclk() and set_pll()
for codec, when the sysclk rate is different with what wm8960 read
at probe, the output sound frequency is wrong.

So change the fll_id and pll_id initial value, still keep machine
driver's behavior same as before.

Signed-off-by: Shengjiu Wang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: TE-N-ShengjiuWang

sound/soc/fsl/fsl-asoc-card.c

@@ -52,8 +52,8 @@ struct codec_priv {
 	unsigned long mclk_freq;
 	unsigned long free_freq;
 	u32 mclk_id;
-	u32 fll_id;
-	u32 pll_id;
+	int fll_id;
+	int pll_id;
 };
 
 /**
@@ -206,7 +206,7 @@ static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	/* Specific configuration for PLL */
-	if (codec_priv->pll_id && codec_priv->fll_id) {
+	if (codec_priv->pll_id >= 0 && codec_priv->fll_id >= 0) {
 		if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
 			pll_out = priv->sample_rate * 384;
 		else
@@ -248,7 +248,7 @@ static int fsl_asoc_card_hw_free(struct snd_pcm_substream *substream)
 
 	priv->streams &= ~BIT(substream->stream);
 
-	if (!priv->streams && codec_priv->pll_id && codec_priv->fll_id) {
+	if (!priv->streams && codec_priv->pll_id >= 0 && codec_priv->fll_id >= 0) {
 		/* Force freq to be free_freq to avoid error message in codec */
 		ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0),
 					     codec_priv->mclk_id,
@@ -621,6 +621,10 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
 	priv->card.dapm_routes = audio_map;
 	priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
 	priv->card.driver_name = DRIVER_NAME;
+
+	priv->codec_priv.fll_id = -1;
+	priv->codec_priv.pll_id = -1;
+
 	/* Diversify the card configurations */
 	if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
 		codec_dai_name = "cs42888";