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| author | Charles Keepax <ckeepax@opensource.cirrus.com> | 2024-01-25 10:31:17 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-01-26 14:47:00 +0000 |
| commit | 31c6e53a4da5fe626b99e1ebf777d751994e3281 (patch) | |
| tree | e341a98913482b0cc72a4469a7b7435cff20bf4b /sound/soc/codecs/cs42l43.c | |
| parent | fe04d1632cb4130fb47d18fe70ac292562a3b9c3 (diff) | |
| download | linux-stable-31c6e53a4da5fe626b99e1ebf777d751994e3281.tar.gz linux-stable-31c6e53a4da5fe626b99e1ebf777d751994e3281.tar.bz2 linux-stable-31c6e53a4da5fe626b99e1ebf777d751994e3281.zip | |
ASoC: cs42l43: Use fls to calculate the pre-divider for the PLL
Use fls to calculate the pre-divider and input frequency for the PLL,
this is marginally faster than the previous loop.
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://msgid.link/r/20240125103117.2622095-7-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/cs42l43.c')
| -rw-r--r-- | sound/soc/codecs/cs42l43.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/sound/soc/codecs/cs42l43.c b/sound/soc/codecs/cs42l43.c index 23e9557494af..2c402086924d 100644 --- a/sound/soc/codecs/cs42l43.c +++ b/sound/soc/codecs/cs42l43.c @@ -1338,10 +1338,9 @@ static int cs42l43_enable_pll(struct cs42l43_codec *priv) dev_dbg(priv->dev, "Enabling PLL at %uHz\n", freq); - while (freq > cs42l43_pll_configs[ARRAY_SIZE(cs42l43_pll_configs) - 1].freq) { - div++; - freq /= 2; - } + div = fls(freq) - + fls(cs42l43_pll_configs[ARRAY_SIZE(cs42l43_pll_configs) - 1].freq); + freq >>= div; if (div <= CS42L43_PLL_REFCLK_DIV_MASK) { int i; |