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| author | Charles Keepax <ckeepax@opensource.cirrus.com> | 2024-01-25 10:31:16 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-01-26 14:46:59 +0000 |
| commit | fe04d1632cb4130fb47d18fe70ac292562a3b9c3 (patch) | |
| tree | f8afd26cc049d78bc48549dcec19284be037f233 | |
| parent | 96c716887c1a918d4cb4610f5cf111280fda48f0 (diff) | |
| download | linux-stable-fe04d1632cb4130fb47d18fe70ac292562a3b9c3.tar.gz linux-stable-fe04d1632cb4130fb47d18fe70ac292562a3b9c3.tar.bz2 linux-stable-fe04d1632cb4130fb47d18fe70ac292562a3b9c3.zip | |
ASoC: cs42l43: Refactor to use for_each_set_bit()
Refactor the code in cs42l43_mask_to_slots() to use for_each_set_bit().
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://msgid.link/r/20240125103117.2622095-6-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/codecs/cs42l43.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/sound/soc/codecs/cs42l43.c b/sound/soc/codecs/cs42l43.c index 1852cb072bd0..23e9557494af 100644 --- a/sound/soc/codecs/cs42l43.c +++ b/sound/soc/codecs/cs42l43.c @@ -6,10 +6,12 @@ // Cirrus Logic International Semiconductor Ltd. #include <linux/bitops.h> +#include <linux/bits.h> #include <linux/clk.h> #include <linux/device.h> #include <linux/err.h> #include <linux/errno.h> +#include <linux/find.h> #include <linux/gcd.h> #include <linux/irq.h> #include <linux/irqdomain.h> @@ -547,23 +549,22 @@ static int cs42l43_asp_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return 0; } -static void cs42l43_mask_to_slots(struct cs42l43_codec *priv, unsigned int mask, int *slots) +static void cs42l43_mask_to_slots(struct cs42l43_codec *priv, unsigned long mask, + int *slots, unsigned int nslots) { - int i; + int i = 0; + int slot; - for (i = 0; i < CS42L43_ASP_MAX_CHANNELS; ++i) { - int slot = ffs(mask) - 1; - - if (slot < 0) + for_each_set_bit(slot, &mask, BITS_PER_TYPE(mask)) { + if (i == nslots) { + dev_warn(priv->dev, "Too many channels in TDM mask: %lx\n", + mask); return; + } - slots[i] = slot; - - mask &= ~(1 << slot); + slots[i++] = slot; } - if (mask) - dev_warn(priv->dev, "Too many channels in TDM mask\n"); } static int cs42l43_asp_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, @@ -580,8 +581,10 @@ static int cs42l43_asp_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mas rx_mask = CS42L43_DEFAULT_SLOTS; } - cs42l43_mask_to_slots(priv, tx_mask, priv->tx_slots); - cs42l43_mask_to_slots(priv, rx_mask, priv->rx_slots); + cs42l43_mask_to_slots(priv, tx_mask, priv->tx_slots, + ARRAY_SIZE(priv->tx_slots)); + cs42l43_mask_to_slots(priv, rx_mask, priv->rx_slots, + ARRAY_SIZE(priv->rx_slots)); return 0; } @@ -2098,8 +2101,10 @@ static int cs42l43_component_probe(struct snd_soc_component *component) snd_soc_component_init_regmap(component, cs42l43->regmap); - cs42l43_mask_to_slots(priv, CS42L43_DEFAULT_SLOTS, priv->tx_slots); - cs42l43_mask_to_slots(priv, CS42L43_DEFAULT_SLOTS, priv->rx_slots); + cs42l43_mask_to_slots(priv, CS42L43_DEFAULT_SLOTS, priv->tx_slots, + ARRAY_SIZE(priv->tx_slots)); + cs42l43_mask_to_slots(priv, CS42L43_DEFAULT_SLOTS, priv->rx_slots, + ARRAY_SIZE(priv->rx_slots)); priv->component = component; priv->constraint = cs42l43_constraint; |