Commit b6b05691 authored by Mark Brown's avatar Mark Brown

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: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent 0c17b393
......@@ -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;
......@@ -3082,12 +3085,16 @@ static int wm8994_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_STANDBY:
if (codec->bias_level == SND_SOC_BIAS_OFF) {
/* Tweak DC servo and DSP configuration for
* improved performance. */
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;
......
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