ENGR00309468-3 ASoC: fsl_spdif: Print selected rate for debug

It'd better to tell people what's the current rate from the clock
selecting function against the required sample rate.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index c1baba2ca029..b47c436e03a9 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -1067,6 +1067,7 @@ static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv,
         struct device *dev = &pdev->dev;
         u64 savesub = 100000, ret;
         struct clk *clk;
+        long rate_final;
         char tmp[16];
         int i;
 
@@ -1100,6 +1101,10 @@ static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv,
         if (spdif_priv->txclk[index] == spdif_priv->sysclk)
                 dev_dbg(&pdev->dev, "use sysclk_df %d for %dHz sample rate\n",
                                 spdif_priv->sysclk_df[index], rate[index]);
+        rate_final = clk_get_rate(spdif_priv->txclk[index]);
+        rate_final /= 64 * spdif_priv->txclk_div[index] * spdif_priv->sysclk_df[index];
+        dev_dbg(&pdev->dev, "The best rate for %dHz sample rate is %ldHz\n",
+                        rate[index], rate_final);
 
         return 0;
 }