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authorPeter Ujfalusi <peter.ujfalusi@nokia.com>2009-05-22 10:13:15 +0300
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-05-22 10:23:22 +0100
commit9da28c7b38170882b1c43d7d133ddce34e25f161 (patch)
treedd9becd919b9fe743d6cebfbd4e212922bf338f0 /sound/soc/codecs
parent5c82f56736e4c3a9eaf53c94366b056c8622d79e (diff)
ASoC: TWL4030: Add support for platform dependent configuration
twl4030_setup_data structure can be passed from platform drivers to the codec via the snd_soc_device->codec_data pointer. Currently the setup data has support for the Headset pop-removal related configuration, which differs from board to board. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs')
-rw-r--r--sound/soc/codecs/twl4030.c22
-rw-r--r--sound/soc/codecs/twl4030.h5
2 files changed, 24 insertions, 3 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index f554672f67c..584507f71ef 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -1997,6 +1997,8 @@ static int twl4030_resume(struct platform_device *pdev)
static int twl4030_init(struct snd_soc_device *socdev)
{
struct snd_soc_codec *codec = socdev->card->codec;
+ struct twl4030_setup_data *setup = socdev->codec_data;
+ struct twl4030_priv *twl4030 = codec->private_data;
int ret = 0;
printk(KERN_INFO "TWL4030 Audio Codec init \n");
@@ -2014,6 +2016,23 @@ static int twl4030_init(struct snd_soc_device *socdev)
if (codec->reg_cache == NULL)
return -ENOMEM;
+ /* Configuration for headset ramp delay from setup data */
+ if (setup) {
+ unsigned char hs_pop;
+
+ if (setup->sysclk)
+ twl4030->sysclk = setup->sysclk;
+ else
+ twl4030->sysclk = 26000;
+
+ hs_pop = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET);
+ hs_pop &= ~TWL4030_RAMP_DELAY;
+ hs_pop |= (setup->ramp_delay_value << 2);
+ twl4030_write_reg_cache(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
+ } else {
+ twl4030->sysclk = 26000;
+ }
+
/* register pcms */
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0) {
@@ -2063,9 +2082,6 @@ static int twl4030_probe(struct platform_device *pdev)
kfree(codec);
return -ENOMEM;
}
- /* Set default sysclk (used by the headsetl/rpga_event callback for
- * pop-attenuation) */
- twl4030->sysclk = 26000;
codec->private_data = twl4030;
socdev->card->codec = codec;
diff --git a/sound/soc/codecs/twl4030.h b/sound/soc/codecs/twl4030.h
index 9668bdf430f..48326e2bd9d 100644
--- a/sound/soc/codecs/twl4030.h
+++ b/sound/soc/codecs/twl4030.h
@@ -266,4 +266,9 @@
extern struct snd_soc_dai twl4030_dai[2];
extern struct snd_soc_codec_device soc_codec_dev_twl4030;
+struct twl4030_setup_data {
+ unsigned int ramp_delay_value;
+ unsigned int sysclk;
+};
+
#endif /* End of __TWL4030_AUDIO_H__ */