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ASoC: Support separate left and right channel dcs_codes values 

Some devices can have performance optimized by setting different offsets
for left and right channels.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
hifive-unleashed-5.1
Mark Brown 2011-08-01 13:10:16 +09:00
parent 79ef0abcd8
commit 4537c4e761
4 changed files with 13 additions and 9 deletions
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3
sound/soc/codecs/wm8993.c
View File

@ -1433,7 +1433,8 @@ static int wm8993_probe(struct snd_soc_codec *codec)
int ret, i, val;
wm8993->hubs_data.hp_startup_mode = 1;
wm8993->hubs_data.dcs_codes = -2;
wm8993->hubs_data.dcs_codes_l = -2;
wm8993->hubs_data.dcs_codes_r = -2;
wm8993->hubs_data.series_startup = 1;
ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);

3
sound/soc/codecs/wm8994.c
View File

@ -2973,7 +2973,8 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
switch (wm8994->revision) {
case 2:
case 3:
wm8994->hubs.dcs_codes = -5;
wm8994->hubs.dcs_codes_l = -5;
wm8994->hubs.dcs_codes_r = -5;
wm8994->hubs.hp_startup_mode = 1;
wm8994->hubs.dcs_readback_mode = 1;
wm8994->hubs.series_startup = 1;

13
sound/soc/codecs/wm_hubs.c
View File

@ -179,18 +179,19 @@ static void calibrate_dc_servo(struct snd_soc_codec *codec)
dev_dbg(codec->dev, "DCS input: %x %x\n", reg_l, reg_r);
/* Apply correction to DC servo result */
if (hubs->dcs_codes) {
dev_dbg(codec->dev, "Applying %d code DC servo correction\n",
hubs->dcs_codes);
if (hubs->dcs_codes_l || hubs->dcs_codes_r) {
dev_dbg(codec->dev,
"Applying %d/%d code DC servo correction\n",
hubs->dcs_codes_l, hubs->dcs_codes_r);
/* HPOUT1R */
offset = reg_r;
offset += hubs->dcs_codes;
offset += hubs->dcs_codes_r;
dcs_cfg = (u8)offset << WM8993_DCS_DAC_WR_VAL_1_SHIFT;
/* HPOUT1L */
offset = reg_l;
offset += hubs->dcs_codes;
offset += hubs->dcs_codes_l;
dcs_cfg |= (u8)offset;
dev_dbg(codec->dev, "DCS result: %x\n", dcs_cfg);
@ -228,7 +229,7 @@ static int wm8993_put_dc_servo(struct snd_kcontrol *kcontrol,
/* If we're applying an offset correction then updating the
* callibration would be likely to introduce further offsets. */
if (hubs->dcs_codes || hubs->no_series_update)
if (hubs->dcs_codes_l || hubs->dcs_codes_r || hubs->no_series_update)
return ret;
/* Only need to do this if the outputs are active */

3
sound/soc/codecs/wm_hubs.h
View File

@ -23,7 +23,8 @@ extern const unsigned int wm_hubs_spkmix_tlv[];
/* This *must* be the first element of the codec->private_data struct */
struct wm_hubs_data {
int dcs_codes;
int dcs_codes_l;
int dcs_codes_r;
int dcs_readback_mode;
int hp_startup_mode;
int series_startup;