[ALSA] pcm: add snd_pcm_rate_to_rate_bit() helper

Add a snd_pcm_rate_to_rate_bit() function to factor out common code used
by several drivers.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 1 insertions, 20 deletions

diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index f0e12985dc29..85d50b64d2ba 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -340,28 +340,9 @@ static struct snd_pcm_hardware snd_bt87x_analog_hw = {
 
 static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
 {
-        static struct {
-                int rate;
-                unsigned int bit;
-        } ratebits[] = {
-                {8000, SNDRV_PCM_RATE_8000},
-                {11025, SNDRV_PCM_RATE_11025},
-                {16000, SNDRV_PCM_RATE_16000},
-                {22050, SNDRV_PCM_RATE_22050},
-                {32000, SNDRV_PCM_RATE_32000},
-                {44100, SNDRV_PCM_RATE_44100},
-                {48000, SNDRV_PCM_RATE_48000}
-        };
-        int i;
-
         chip->reg_control |= CTL_DA_IOM_DA;
         runtime->hw = snd_bt87x_digital_hw;
-        runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
-        for (i = 0; i < ARRAY_SIZE(ratebits); ++i)
-                if (chip->dig_rate == ratebits[i].rate) {
-                        runtime->hw.rates = ratebits[i].bit;
-                        break;
-                }
+        runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->dig_rate);
         runtime->hw.rate_min = chip->dig_rate;
         runtime->hw.rate_max = chip->dig_rate;
         return 0;