Commit 9bd400ca authored by Robert Jarzmik's avatar Robert Jarzmik Committed by Mark Brown
Browse files

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: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
Acked-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent ae9d1b5f
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+2 −1
Original line number Diff line number Diff line
@@ -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"
+27 −12
Original line number Diff line number Diff line
@@ -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
@@ -1205,18 +1209,24 @@ 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;

	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);

	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,