[alsa-devel] Applied "ASoC: stac9766: Convert to regmap" to the asoc tree
Mark Brown
broonie at kernel.org
Fri Nov 4 19:16:07 CET 2016
The patch
ASoC: stac9766: Convert to regmap
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
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Thanks,
Mark
>From 6bbf787bb70c8a16509a2d51182423a6f6977742 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars at metafoo.de>
Date: Fri, 4 Nov 2016 18:26:56 +0100
Subject: [PATCH] ASoC: stac9766: Convert to regmap
Currently the stac9766 driver still uses custom snd_soc_codec_driver IO
callbacks. This has been deprecated for a while, so convert the stac9766
driver to use regmap for its IO.
Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
Signed-off-by: Mark Brown <broonie at kernel.org>
---
sound/soc/codecs/stac9766.c | 108 ++++++++++++++++++++++++--------------------
1 file changed, 59 insertions(+), 49 deletions(-)
diff --git a/sound/soc/codecs/stac9766.c b/sound/soc/codecs/stac9766.c
index f675d343b529..62cbeedf93b9 100644
--- a/sound/soc/codecs/stac9766.c
+++ b/sound/soc/codecs/stac9766.c
@@ -18,6 +18,7 @@
#include <linux/slab.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>
@@ -33,26 +34,49 @@
#define AC97_STAC_ANALOG_SPECIAL 0x6E
#define AC97_STAC_STEREO_MIC 0x78
-/*
- * STAC9766 register cache
- */
-static const u16 stac9766_reg[] = {
- 0x6A90, 0x8000, 0x8000, 0x8000, /* 6 */
- 0x0000, 0x0000, 0x8008, 0x8008, /* e */
- 0x8808, 0x8808, 0x8808, 0x8808, /* 16 */
- 0x8808, 0x0000, 0x8000, 0x0000, /* 1e */
- 0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
- 0x0a05, 0x0400, 0xbb80, 0x0000, /* 2e */
- 0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
- 0x0000, 0x2000, 0x0000, 0x0100, /* 3e */
- 0x0000, 0x0000, 0x0080, 0x0000, /* 46 */
- 0x0000, 0x0000, 0x0003, 0xffff, /* 4e */
- 0x0000, 0x0000, 0x0000, 0x0000, /* 56 */
- 0x4000, 0x0000, 0x0000, 0x0000, /* 5e */
- 0x1201, 0x0000, 0x0000, 0x0000, /* 66 */
- 0x0000, 0x0000, 0x0000, 0x1000, /* 6e */
- 0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
- 0x0000, 0x0000, 0x0000, 0x0000, /* 7e */
+static const struct reg_default stac9766_reg_defaults[] = {
+ { 0x02, 0x8000 },
+ { 0x04, 0x8000 },
+ { 0x06, 0x8000 },
+ { 0x0a, 0x0000 },
+ { 0x0c, 0x8008 },
+ { 0x0e, 0x8008 },
+ { 0x10, 0x8808 },
+ { 0x12, 0x8808 },
+ { 0x14, 0x8808 },
+ { 0x16, 0x8808 },
+ { 0x18, 0x8808 },
+ { 0x1a, 0x0000 },
+ { 0x1c, 0x8000 },
+ { 0x20, 0x0000 },
+ { 0x22, 0x0000 },
+ { 0x28, 0x0a05 },
+ { 0x2c, 0xbb80 },
+ { 0x32, 0xbb80 },
+ { 0x3a, 0x2000 },
+ { 0x3e, 0x0100 },
+ { 0x4c, 0x0300 },
+ { 0x4e, 0xffff },
+ { 0x50, 0x0000 },
+ { 0x52, 0x0000 },
+ { 0x54, 0x0000 },
+ { 0x6a, 0x0000 },
+ { 0x6e, 0x1000 },
+ { 0x72, 0x0000 },
+ { 0x78, 0x0000 },
+};
+
+static const struct regmap_config stac9766_regmap_config = {
+ .reg_bits = 16,
+ .reg_stride = 2,
+ .val_bits = 16,
+ .max_register = 0x78,
+ .cache_type = REGCACHE_RBTREE,
+
+ .volatile_reg = regmap_ac97_default_volatile,
+
+ .reg_defaults = stac9766_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(stac9766_reg_defaults),
};
static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
@@ -144,34 +168,13 @@ static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int val)
{
- struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
- u16 *cache = codec->reg_cache;
-
- if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
- return -EIO;
-
- soc_ac97_ops->write(ac97, reg, val);
- cache[reg / 2] = val;
- return 0;
+ return snd_soc_write(codec, reg, val);
}
static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
unsigned int reg)
{
- struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
- u16 val = 0, *cache = codec->reg_cache;
-
- if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
- return -EIO;
-
- if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
- reg == AC97_INT_PAGING || reg == AC97_VENDOR_ID1 ||
- reg == AC97_VENDOR_ID2) {
-
- val = soc_ac97_ops->read(ac97, reg);
- return val;
- }
- return cache[reg / 2];
+ return snd_soc_read(codec, reg);
}
static int ac97_analog_prepare(struct snd_pcm_substream *substream,
@@ -290,21 +293,34 @@ static struct snd_soc_dai_driver stac9766_dai[] = {
static int stac9766_codec_probe(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97;
+ struct regmap *regmap;
+ int ret;
ac97 = snd_soc_new_ac97_codec(codec, STAC9766_VENDOR_ID,
STAC9766_VENDOR_ID_MASK);
if (IS_ERR(ac97))
return PTR_ERR(ac97);
+ regmap = regmap_init_ac97(ac97, &stac9766_regmap_config);
+ if (IS_ERR(regmap)) {
+ ret = PTR_ERR(regmap);
+ goto err_free_ac97;
+ }
+
+ snd_soc_codec_init_regmap(codec, regmap);
snd_soc_codec_set_drvdata(codec, ac97);
return 0;
+err_free_ac97:
+ snd_soc_free_ac97_codec(ac97);
+ return ret;
}
static int stac9766_codec_remove(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
+ snd_soc_codec_exit_regmap(codec);
snd_soc_free_ac97_codec(ac97);
return 0;
}
@@ -314,17 +330,11 @@ static struct snd_soc_codec_driver soc_codec_dev_stac9766 = {
.controls = stac9766_snd_ac97_controls,
.num_controls = ARRAY_SIZE(stac9766_snd_ac97_controls),
},
- .write = stac9766_ac97_write,
- .read = stac9766_ac97_read,
.set_bias_level = stac9766_set_bias_level,
.suspend_bias_off = true,
.probe = stac9766_codec_probe,
.remove = stac9766_codec_remove,
.resume = stac9766_codec_resume,
- .reg_cache_size = ARRAY_SIZE(stac9766_reg),
- .reg_word_size = sizeof(u16),
- .reg_cache_step = 2,
- .reg_cache_default = stac9766_reg,
};
static int stac9766_probe(struct platform_device *pdev)
--
2.10.1
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