Re: [PATCH 2/2] ASoC: fsl_spdif: Add support for imx6sx platform

The one difference on imx6sx platform is that the root clock
is shared with ASRC module, so we add a new flags "ind_root_clk"
which means the root clock is independent, then we will not
do the clk_set_rate and clk_round_rate to avoid impact ASRC
module usage.

As add a new flags, we include the soc specific data struct.

Signed-off-by: Shengjiu Wang <redacted>
---
 sound/soc/fsl/fsl_spdif.c | 43 +++++++++++++++++++++++++++++++++++----
 1 file changed, 39 insertions(+), 4 deletions(-)

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 1b2e516f9162..00e06803d32f 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c

@@ -42,6 +42,17 @@ static u8 srpc_dpll_locked[] = { 0x0, 0x1, 0x2, 0x3, 0x4, 0xa, 0xb };
 
 #define DEFAULT_RXCLK_SRC	1
 
+/**
+ * struct fsl_spdif_soc_data: soc specific data
+ *
+ * @imx: for imx platform
+ * @ind_root_clk: flag for round clk rate
+ */
+struct fsl_spdif_soc_data {
+	bool imx;
+	bool ind_root_clk;

+};
+
 /*
  * SPDIF control structure
  * Defines channel status, subcode and Q sub

@@ -93,6 +104,7 @@ struct fsl_spdif_priv {
 	struct snd_soc_dai_driver cpu_dai_drv;
 	struct platform_device *pdev;
 	struct regmap *regmap;
+	const struct fsl_spdif_soc_data *soc;

@@ -421,7 +448,7 @@ static int spdif_set_sample_rate(struct snd_pcm_substream *substream,
 	sysclk_df = spdif_priv->sysclk_df[rate];
 
 	/* Don't mess up the clocks from other modules */
-	if (clk != STC_TXCLK_SPDIF_ROOT)
+	if (clk != STC_TXCLK_SPDIF_ROOT || !spdif_priv->soc->ind_root_clk)
 		goto clk_set_bypass;
 
 	/* The S/PDIF block needs a clock of 64 * fs * txclk_df */

@@ -1186,7 +1213,8 @@ static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv,
 			continue;
 
 		ret = fsl_spdif_txclk_caldiv(spdif_priv, clk, savesub, index,
-					     i == STC_TXCLK_SPDIF_ROOT);
+					     i == STC_TXCLK_SPDIF_ROOT &&
+					     spdif_priv->soc->ind_root_clk);