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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
commite5fd91f1ef340da553f7a79da9540c3db711c937 (patch)
treeb11842027dc6641da63f4bcc524f8678263304a3 /sound/soc/codecs/wm8523.c
parent2a9b0348e685a63d97486f6749622b61e9e3292f (diff)
Linux-libre 4.2-gnu
Diffstat (limited to 'sound/soc/codecs/wm8523.c')
-rw-r--r--sound/soc/codecs/wm8523.c29
1 files changed, 27 insertions, 2 deletions
diff --git a/sound/soc/codecs/wm8523.c b/sound/soc/codecs/wm8523.c
index b1cc94f5f..43ea8ae5f 100644
--- a/sound/soc/codecs/wm8523.c
+++ b/sound/soc/codecs/wm8523.c
@@ -113,6 +113,15 @@ static struct {
{ 7, 1152 },
};
+static struct {
+ int value;
+ int ratio;
+} bclk_ratios[WM8523_NUM_RATES] = {
+ { 2, 32 },
+ { 3, 64 },
+ { 4, 128 },
+};
+
static int wm8523_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
@@ -162,6 +171,23 @@ static int wm8523_hw_params(struct snd_pcm_substream *substream,
aifctrl2 &= ~WM8523_SR_MASK;
aifctrl2 |= lrclk_ratios[i].value;
+ if (aifctrl1 & WM8523_AIF_MSTR) {
+ /* Find a fs->bclk ratio */
+ for (i = 0; i < ARRAY_SIZE(bclk_ratios); i++)
+ if (params_width(params) * 2 <= bclk_ratios[i].ratio)
+ break;
+
+ if (i == ARRAY_SIZE(bclk_ratios)) {
+ dev_err(codec->dev,
+ "No matching BCLK/fs ratio for word length %d\n",
+ params_width(params));
+ return -EINVAL;
+ }
+
+ aifctrl2 &= ~WM8523_BCLKDIV_MASK;
+ aifctrl2 |= bclk_ratios[i].value << WM8523_BCLKDIV_SHIFT;
+ }
+
aifctrl1 &= ~WM8523_WL_MASK;
switch (params_width(params)) {
case 16:
@@ -308,7 +334,7 @@ static int wm8523_set_bias_level(struct snd_soc_codec *codec,
break;
case SND_SOC_BIAS_STANDBY:
- if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+ if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
ret = regulator_bulk_enable(ARRAY_SIZE(wm8523->supplies),
wm8523->supplies);
if (ret != 0) {
@@ -344,7 +370,6 @@ static int wm8523_set_bias_level(struct snd_soc_codec *codec,
wm8523->supplies);
break;
}
- codec->dapm.bias_level = level;
return 0;
}