ASoC: fsl_spdif: Don't try to round-up for clock divisor calculation

As commit 6c8ca30eec7b ("ASoC: fsl_ssi: Don't try to round-up for PM
divisor calculation") mentioned that there's no more need to use a
round up work around to get a better divisor since the clk-divider
driver has been refined a lot.

So this patch applies the same modification to fsl_spdif driver.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 4 insertions, 6 deletions

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 91eb3aef7f02..8e932219cb3a 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -417,11 +417,9 @@ static int spdif_set_sample_rate(struct snd_pcm_substream *substream,
         if (clk != STC_TXCLK_SPDIF_ROOT)
                 goto clk_set_bypass;
 
-        /*
-         * The S/PDIF block needs a clock of 64 * fs * txclk_df.
-         * So request 64 * fs * (txclk_df + 1) to get rounded.
-         */
-        ret = clk_set_rate(spdif_priv->txclk[rate], 64 * sample_rate * (txclk_df + 1));
+        /* The S/PDIF block needs a clock of 64 * fs * txclk_df */
+        ret = clk_set_rate(spdif_priv->txclk[rate],
+                           64 * sample_rate * txclk_df);
         if (ret) {
                 dev_err(&pdev->dev, "failed to set tx clock rate\n");
                 return ret;
@@ -1060,7 +1058,7 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
 
         for (sysclk_df = sysclk_dfmin; sysclk_df <= sysclk_dfmax; sysclk_df++) {
                 for (txclk_df = 1; txclk_df <= 128; txclk_df++) {
-                        rate_ideal = rate[index] * (txclk_df + 1) * 64;
+                        rate_ideal = rate[index] * txclk_df * 64;
                         if (round)
                                 rate_actual = clk_round_rate(clk, rate_ideal);
                         else