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authorNicolin Chen <nicoleotsuka@gmail.com>2015-05-24 01:12:41 -0700
committerMark Brown <broonie@kernel.org>2015-05-25 12:58:01 +0100
commitf490f326178a6fec87a9bc3d35525bc9cb96ef0e (patch)
tree609888cfab4b3cb2c81e937b2615481c1d97306d /sound/soc/fsl
parentb787f68c36d49bb1d9236f403813641efa74a031 (diff)
downloadlinux-f490f326178a6fec87a9bc3d35525bc9cb96ef0e.tar.bz2
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>
Diffstat (limited to 'sound/soc/fsl')
-rw-r--r--sound/soc/fsl/fsl_spdif.c10
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