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ASoC: ab8500-codec: Revert back to regmap 

Commit ff795d614b ("ASoC: ab8500: Convert register I/O to regmap")
initially converted the ab8500 CODEC driver to use regmap rather than
legacy ASoC IO. This was reverted though in commit 63e6d43bf8 ("ASoC:
ab8500: Revert to using custom I/O functions") since the inital conversion
was not working properly. This was presumebly because the SOC_SINGLE_XR_SX
controls, which are used by this driver, did not properly support regmap at
that point. This has since been fixed in commit 6137a5ca32 ("ASoC: Prepare
SOC_SINGLE_XR_SX controls for regmap"). So revert back to regmap again.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2014-08-25 10:20:44 +02:00 committed by Mark Brown
parent 6391fffb7b
commit ae70b190fc
1 changed files with 32 additions and 38 deletions
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70
sound/soc/codecs/ab8500-codec.c
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@ -125,6 +125,8 @@ struct ab8500_codec_drvdata_dbg {
/* Private data for AB8500 device-driver */
struct ab8500_codec_drvdata {
struct regmap *regmap;
/* Sidetone */
long *sid_fir_values;
enum sid_state sid_status;
@ -165,49 +167,35 @@ static inline const char *amic_type_str(enum amic_type type)
*/
/* Read a register from the audio-bank of AB8500 */
static unsigned int ab8500_codec_read_reg(struct snd_soc_codec *codec,
unsigned int reg)
static int ab8500_codec_read_reg(void *context, unsigned int reg,
unsigned int *value)
{
struct device *dev = context;
int status;
unsigned int value = 0;
u8 value8;
status = abx500_get_register_interruptible(codec->dev, AB8500_AUDIO,
reg, &value8);
if (status < 0) {
dev_err(codec->dev,
"%s: ERROR: Register (0x%02x:0x%02x) read failed (%d).\n",
__func__, (u8)AB8500_AUDIO, (u8)reg, status);
} else {
dev_dbg(codec->dev,
"%s: Read 0x%02x from register 0x%02x:0x%02x\n",
__func__, value8, (u8)AB8500_AUDIO, (u8)reg);
value = (unsigned int)value8;
}
return value;
}
/* Write to a register in the audio-bank of AB8500 */
static int ab8500_codec_write_reg(struct snd_soc_codec *codec,
unsigned int reg, unsigned int value)
{
int status;
status = abx500_set_register_interruptible(codec->dev, AB8500_AUDIO,
reg, value);
if (status < 0)
dev_err(codec->dev,
"%s: ERROR: Register (%02x:%02x) write failed (%d).\n",
__func__, (u8)AB8500_AUDIO, (u8)reg, status);
else
dev_dbg(codec->dev,
"%s: Wrote 0x%02x into register %02x:%02x\n",
__func__, (u8)value, (u8)AB8500_AUDIO, (u8)reg);
status = abx500_get_register_interruptible(dev, AB8500_AUDIO,
reg, &value8);
*value = (unsigned int)value8;
return status;
}
/* Write to a register in the audio-bank of AB8500 */
static int ab8500_codec_write_reg(void *context, unsigned int reg,
unsigned int value)
{
struct device *dev = context;
return abx500_set_register_interruptible(dev, AB8500_AUDIO,
reg, value);
}
static const struct regmap_config ab8500_codec_regmap = {
.reg_read = ab8500_codec_read_reg,
.reg_write = ab8500_codec_write_reg,
};
/*
* Controls - DAPM
*/
@ -2564,9 +2552,6 @@ static int ab8500_codec_probe(struct snd_soc_codec *codec)
static struct snd_soc_codec_driver ab8500_codec_driver = {
.probe = ab8500_codec_probe,
.read = ab8500_codec_read_reg,
.write = ab8500_codec_write_reg,
.reg_word_size = sizeof(u8),
.controls = ab8500_ctrls,
.num_controls = ARRAY_SIZE(ab8500_ctrls),
.dapm_widgets = ab8500_dapm_widgets,
@ -2591,6 +2576,15 @@ static int ab8500_codec_driver_probe(struct platform_device *pdev)
drvdata->anc_status = ANC_UNCONFIGURED;
dev_set_drvdata(&pdev->dev, drvdata);
drvdata->regmap = devm_regmap_init(&pdev->dev, NULL, &pdev->dev,
&ab8500_codec_regmap);
if (IS_ERR(drvdata->regmap)) {
status = PTR_ERR(drvdata->regmap);
dev_err(&pdev->dev, "%s: Failed to allocate regmap: %d\n",
__func__, status);
return status;
}
dev_dbg(&pdev->dev, "%s: Register codec.\n", __func__);
status = snd_soc_register_codec(&pdev->dev, &ab8500_codec_driver,
ab8500_codec_dai,