diff options
| author | Nicolin Chen <nicoleotsuka@gmail.com> | 2015-05-24 01:12:41 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-05-25 12:58:01 +0100 |
| commit | f490f326178a6fec87a9bc3d35525bc9cb96ef0e (patch) | |
| tree | 609888cfab4b3cb2c81e937b2615481c1d97306d /sound/soc/fsl/fsl_spdif.c | |
| parent | b787f68c36d49bb1d9236f403813641efa74a031 (diff) | |
| download | linux-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/fsl_spdif.c')
| -rw-r--r-- | sound/soc/fsl/fsl_spdif.c | 10 |
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 |