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ASoC: wm9713: add ac97 new bus support 

Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Robert Jarzmik 2017-09-13 21:37:19 +02:00 committed by Mark Brown
parent ae9d1b5fbd
commit 9bd400cada
2 changed files with 29 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sound/soc/codecs/Kconfig
View File

@ -216,7 +216,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_WM9090 if I2C
select SND_SOC_WM9705 if SND_SOC_AC97_BUS
select SND_SOC_WM9712 if SND_SOC_AC97_BUS
select SND_SOC_WM9713 if SND_SOC_AC97_BUS
select SND_SOC_WM9713 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
help
Normally ASoC codec drivers are only built if a machine driver which
uses them is also built since they are only usable with a machine
@ -1136,6 +1136,7 @@ config SND_SOC_WM9712
config SND_SOC_WM9713
tristate
select REGMAP_AC97
select AC97_BUS_COMPAT if AC97_BUS_NEW
config SND_SOC_ZX_AUD96P22
tristate "ZTE ZX AUD96P22 CODEC"

39
sound/soc/codecs/wm9713.c
View File

@ -17,12 +17,15 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/mfd/wm97xx.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/ac97/codec.h>
#include <sound/ac97/compat.h>
#include <sound/initval.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
@ -38,6 +41,7 @@ struct wm9713_priv {
u32 pll_in; /* PLL input frequency */
unsigned int hp_mixer[2];
struct mutex lock;
struct wm97xx_platform_data *mfd_pdata;
};
#define HPL_MIXER 0
@ -1205,17 +1209,23 @@ static int wm9713_soc_resume(struct snd_soc_codec *codec)
static int wm9713_soc_probe(struct snd_soc_codec *codec)
{
struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
struct regmap *regmap;
struct regmap *regmap = NULL;
wm9713->ac97 = snd_soc_new_ac97_codec(codec, WM9713_VENDOR_ID,
WM9713_VENDOR_ID_MASK);
if (IS_ERR(wm9713->ac97))
return PTR_ERR(wm9713->ac97);
regmap = regmap_init_ac97(wm9713->ac97, &wm9713_regmap_config);
if (IS_ERR(regmap)) {
snd_soc_free_ac97_codec(wm9713->ac97);
return PTR_ERR(regmap);
if (wm9713->mfd_pdata) {
wm9713->ac97 = wm9713->mfd_pdata->ac97;
regmap = wm9713->mfd_pdata->regmap;
} else {
#ifdef CONFIG_SND_SOC_AC97_BUS
wm9713->ac97 = snd_soc_new_ac97_codec(codec, WM9713_VENDOR_ID,
WM9713_VENDOR_ID_MASK);
if (IS_ERR(wm9713->ac97))
return PTR_ERR(wm9713->ac97);
regmap = regmap_init_ac97(wm9713->ac97, &wm9713_regmap_config);
if (IS_ERR(regmap)) {
snd_soc_free_ac97_codec(wm9713->ac97);
return PTR_ERR(regmap);
}
#endif
}
snd_soc_codec_init_regmap(codec, regmap);
@ -1228,10 +1238,14 @@ static int wm9713_soc_probe(struct snd_soc_codec *codec)
static int wm9713_soc_remove(struct snd_soc_codec *codec)
{
#ifdef CONFIG_SND_SOC_AC97_BUS
struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
snd_soc_codec_exit_regmap(codec);
snd_soc_free_ac97_codec(wm9713->ac97);
if (!wm9713->mfd_pdata) {
snd_soc_codec_exit_regmap(codec);
snd_soc_free_ac97_codec(wm9713->ac97);
}
#endif
return 0;
}
@ -1262,6 +1276,7 @@ static int wm9713_probe(struct platform_device *pdev)
mutex_init(&wm9713->lock);
wm9713->mfd_pdata = dev_get_platdata(&pdev->dev);
platform_set_drvdata(pdev, wm9713);
return snd_soc_register_codec(&pdev->dev,