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authorRobert Jarzmik <robert.jarzmik@free.fr>2017-09-13 21:37:22 +0200
committerMark Brown <broonie@kernel.org>2017-09-19 17:09:36 +0100
commitaaafcfed9290349555a326fff1147460a54c34f2 (patch)
tree962478cef613000b89f9f3b148faaa0e059b7c1b /sound
parentc6e46e52b7b3301dda529830226e578cf773151c (diff)
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ASoC: wm9705: 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>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/Kconfig3
-rw-r--r--sound/soc/codecs/wm9705.c42
2 files changed, 31 insertions, 14 deletions
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 655388d456be..0838ae710941 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -214,7 +214,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_WM8998 if MFD_WM8998
select SND_SOC_WM9081 if I2C
select SND_SOC_WM9090 if I2C
- select SND_SOC_WM9705 if SND_SOC_AC97_BUS
+ select SND_SOC_WM9705 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
select SND_SOC_WM9712 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
select SND_SOC_WM9713 if (SND_SOC_AC97_BUS || SND_SOC_AC97_BUS_NEW)
help
@@ -1128,6 +1128,7 @@ config SND_SOC_WM9090
config SND_SOC_WM9705
tristate
select REGMAP_AC97
+ select AC97_BUS_COMPAT if AC97_BUS_NEW
config SND_SOC_WM9712
tristate
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index 08477d040028..68c204e3599f 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -11,6 +11,7 @@
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/mfd/wm97xx.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
@@ -18,6 +19,8 @@
#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/soc.h>
@@ -26,6 +29,7 @@
struct wm9705_priv {
struct snd_ac97 *ac97;
+ struct wm97xx_platform_data *mfd_pdata;
};
static const struct reg_default wm9705_reg_defaults[] = {
@@ -319,17 +323,24 @@ static int wm9705_soc_probe(struct snd_soc_codec *codec)
struct regmap *regmap;
int ret;
- wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
- WM9705_VENDOR_ID_MASK);
- if (IS_ERR(wm9705->ac97)) {
- dev_err(codec->dev, "Failed to register AC97 codec\n");
- return PTR_ERR(wm9705->ac97);
- }
-
- regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
- if (IS_ERR(regmap)) {
- ret = PTR_ERR(regmap);
- goto err_free_ac97_codec;
+ if (wm9705->mfd_pdata) {
+ wm9705->ac97 = wm9705->mfd_pdata->ac97;
+ regmap = wm9705->mfd_pdata->regmap;
+ } else {
+#ifdef CONFIG_SND_SOC_AC97_BUS
+ wm9705->ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
+ WM9705_VENDOR_ID_MASK);
+ if (IS_ERR(wm9705->ac97)) {
+ dev_err(codec->dev, "Failed to register AC97 codec\n");
+ return PTR_ERR(wm9705->ac97);
+ }
+
+ regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
+ if (IS_ERR(regmap)) {
+ ret = PTR_ERR(regmap);
+ goto err_free_ac97_codec;
+ }
+#endif
}
snd_soc_codec_set_drvdata(codec, wm9705->ac97);
@@ -343,10 +354,14 @@ err_free_ac97_codec:
static int wm9705_soc_remove(struct snd_soc_codec *codec)
{
+#ifdef CONFIG_SND_SOC_AC97_BUS
struct wm9705_priv *wm9705 = snd_soc_codec_get_drvdata(codec);
- snd_soc_codec_exit_regmap(codec);
- snd_soc_free_ac97_codec(wm9705->ac97);
+ if (!wm9705->mfd_pdata) {
+ snd_soc_codec_exit_regmap(codec);
+ snd_soc_free_ac97_codec(wm9705->ac97);
+ }
+#endif
return 0;
}
@@ -374,6 +389,7 @@ static int wm9705_probe(struct platform_device *pdev)
if (wm9705 == NULL)
return -ENOMEM;
+ wm9705->mfd_pdata = dev_get_platdata(&pdev->dev);
platform_set_drvdata(pdev, wm9705);
return snd_soc_register_codec(&pdev->dev,