OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ASoC: Only tweak WM8994 chip configuration on devices up to rev D 

Any subsequent revisions will have these configuration changes applied
by default.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown 2010-08-13 12:58:20 +01:00
parent 0c17b39394
commit b6b056911a
1 changed files with 13 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
sound/soc/codecs/wm8994.c
View File

@ -95,6 +95,7 @@ struct wm8994_priv {
struct wm8994_micdet micdet[2];
int revision;
struct wm8994_pdata *pdata;
};
@ -3070,6 +3071,8 @@ static int wm8994_set_dai_sysclk(struct snd_soc_dai *dai,
static int wm8994_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
switch (level) {
case SND_SOC_BIAS_ON:
break;
@ -3084,10 +3087,14 @@ static int wm8994_set_bias_level(struct snd_soc_codec *codec,
if (codec->bias_level == SND_SOC_BIAS_OFF) {
/* Tweak DC servo and DSP configuration for
* improved performance. */
snd_soc_write(codec, 0x102, 0x3);
snd_soc_write(codec, 0x56, 0x3);
snd_soc_write(codec, 0x817, 0);
snd_soc_write(codec, 0x102, 0);
if (wm8994->revision < 4) {
/* Tweak DC servo and DSP configuration for
* improved performance. */
snd_soc_write(codec, 0x102, 0x3);
snd_soc_write(codec, 0x56, 0x3);
snd_soc_write(codec, 0x817, 0);
snd_soc_write(codec, 0x102, 0);
}
/* Discharge LINEOUT1 & 2 */
snd_soc_update_bits(codec, WM8994_ANTIPOP_1,
@ -3920,7 +3927,6 @@ static int wm8994_codec_probe(struct platform_device *pdev)
struct wm8994_priv *wm8994;
struct snd_soc_codec *codec;
int i;
u16 rev;
if (wm8994_codec) {
dev_err(&pdev->dev, "Another WM8994 is registered\n");
@ -3974,8 +3980,8 @@ static int wm8994_codec_probe(struct platform_device *pdev)
wm8994->reg_cache[i] = 0;
/* Set revision-specific configuration */
rev = snd_soc_read(codec, WM8994_CHIP_REVISION);
switch (rev) {
wm8994->revision = snd_soc_read(codec, WM8994_CHIP_REVISION);
switch (wm8994->revision) {
case 2:
case 3:
wm8994->hubs.dcs_codes = -5;