Currently the wm9712 driver still uses custom snd_soc_codec_driver IO callbacks. This has been deprecated for a while, so convert the wm9712 driver to use regmap for its IO.
Tested-by: Marek Vasut marex@denx.de Acked-by: Marek Vasut marex@denx.de Signed-off-by: Lars-Peter Clausen lars@metafoo.de --- sound/soc/codecs/Kconfig | 1 + sound/soc/codecs/wm9712.c | 143 +++++++++++++++++++++++++--------------------- 2 files changed, 79 insertions(+), 65 deletions(-)
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index c67667b..f472254 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -1057,6 +1057,7 @@ config SND_SOC_WM9705
config SND_SOC_WM9712 tristate + select REGMAP_AC97
config SND_SOC_WM9713 tristate diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c index 557709e..d2d0d2b 100644 --- a/sound/soc/codecs/wm9712.c +++ b/sound/soc/codecs/wm9712.c @@ -15,6 +15,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/device.h> +#include <linux/regmap.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/ac97_codec.h> @@ -32,31 +33,66 @@ struct wm9712_priv { struct mutex lock; };
-static unsigned int ac97_read(struct snd_soc_codec *codec, - unsigned int reg); -static int ac97_write(struct snd_soc_codec *codec, - unsigned int reg, unsigned int val); +static const struct reg_default wm9712_reg_defaults[] = { + { 0x02, 0x8000 }, + { 0x04, 0x8000 }, + { 0x06, 0x8000 }, + { 0x08, 0x0f0f }, + { 0x0a, 0xaaa0 }, + { 0x0c, 0xc008 }, + { 0x0e, 0x6808 }, + { 0x10, 0xe808 }, + { 0x12, 0xaaa0 }, + { 0x14, 0xad00 }, + { 0x16, 0x8000 }, + { 0x18, 0xe808 }, + { 0x1a, 0x3000 }, + { 0x1c, 0x8000 }, + { 0x20, 0x0000 }, + { 0x22, 0x0000 }, + { 0x26, 0x000f }, + { 0x28, 0x0605 }, + { 0x2a, 0x0410 }, + { 0x2c, 0xbb80 }, + { 0x2e, 0xbb80 }, + { 0x32, 0xbb80 }, + { 0x34, 0x2000 }, + { 0x4c, 0xf83e }, + { 0x4e, 0xffff }, + { 0x50, 0x0000 }, + { 0x52, 0x0000 }, + { 0x56, 0xf83e }, + { 0x58, 0x0008 }, + { 0x5c, 0x0000 }, + { 0x60, 0xb032 }, + { 0x62, 0x3e00 }, + { 0x64, 0x0000 }, + { 0x76, 0x0006 }, + { 0x78, 0x0001 }, + { 0x7a, 0x0000 }, +};
-/* - * WM9712 register cache - */ -static const u16 wm9712_reg[] = { - 0x6174, 0x8000, 0x8000, 0x8000, /* 6 */ - 0x0f0f, 0xaaa0, 0xc008, 0x6808, /* e */ - 0xe808, 0xaaa0, 0xad00, 0x8000, /* 16 */ - 0xe808, 0x3000, 0x8000, 0x0000, /* 1e */ - 0x0000, 0x0000, 0x0000, 0x000f, /* 26 */ - 0x0405, 0x0410, 0xbb80, 0xbb80, /* 2e */ - 0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */ - 0x0000, 0x2000, 0x0000, 0x0000, /* 3e */ - 0x0000, 0x0000, 0x0000, 0x0000, /* 46 */ - 0x0000, 0x0000, 0xf83e, 0xffff, /* 4e */ - 0x0000, 0x0000, 0x0000, 0xf83e, /* 56 */ - 0x0008, 0x0000, 0x0000, 0x0000, /* 5e */ - 0xb032, 0x3e00, 0x0000, 0x0000, /* 66 */ - 0x0000, 0x0000, 0x0000, 0x0000, /* 6e */ - 0x0000, 0x0000, 0x0000, 0x0006, /* 76 */ - 0x0001, 0x0000, 0x574d, 0x4c12, /* 7e */ +static bool wm9712_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AC97_REC_GAIN: + return true; + default: + return regmap_ac97_default_volatile(dev, reg); + } +} + +static const struct regmap_config wm9712_regmap_config = { + .reg_bits = 16, + .reg_stride = 2, + .val_bits = 16, + .max_register = 0x7e, + .cache_type = REGCACHE_RBTREE, + + .volatile_reg = wm9712_volatile_reg, + + .reg_defaults = wm9712_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm9712_reg_defaults), };
#define HPL_MIXER 0x0 @@ -488,35 +524,13 @@ static const struct snd_soc_dapm_route wm9712_audio_map[] = { static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg) { - struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec); - u16 *cache = codec->reg_cache; - - if (reg == AC97_RESET || reg == AC97_GPIO_STATUS || - reg == AC97_VENDOR_ID1 || reg == AC97_VENDOR_ID2 || - reg == AC97_REC_GAIN) - return soc_ac97_ops->read(wm9712->ac97, reg); - else { - reg = reg >> 1; - - if (reg >= (ARRAY_SIZE(wm9712_reg))) - return -EIO; - - return cache[reg]; - } + return snd_soc_read(codec, reg); }
static int ac97_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int val) { - struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec); - u16 *cache = codec->reg_cache; - - soc_ac97_ops->write(wm9712->ac97, reg, val); - reg = reg >> 1; - if (reg < (ARRAY_SIZE(wm9712_reg))) - cache[reg] = val; - - return 0; + return snd_soc_write(codec, reg, val); }
static int ac97_prepare(struct snd_pcm_substream *substream, @@ -619,8 +633,7 @@ static int wm9712_set_bias_level(struct snd_soc_codec *codec, static int wm9712_soc_resume(struct snd_soc_codec *codec) { struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec); - int i, ret; - u16 *cache = codec->reg_cache; + int ret;
ret = snd_ac97_reset(wm9712->ac97, true, WM9712_VENDOR_ID, WM9712_VENDOR_ID_MASK); @@ -629,15 +642,8 @@ static int wm9712_soc_resume(struct snd_soc_codec *codec)
snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY);
- if (ret == 0) { - /* Sync reg_cache with the hardware after cold reset */ - for (i = 2; i < ARRAY_SIZE(wm9712_reg) << 1; i += 2) { - if (i == AC97_INT_PAGING || i == AC97_POWERDOWN || - (i > 0x58 && i != 0x5c)) - continue; - soc_ac97_ops->write(wm9712->ac97, i, cache[i>>1]); - } - } + if (ret == 0) + regcache_sync(codec->component.regmap);
return ret; } @@ -645,6 +651,7 @@ static int wm9712_soc_resume(struct snd_soc_codec *codec) static int wm9712_soc_probe(struct snd_soc_codec *codec) { struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec); + struct regmap *regmap; int ret;
wm9712->ac97 = snd_soc_new_ac97_codec(codec, WM9712_VENDOR_ID, @@ -655,16 +662,28 @@ static int wm9712_soc_probe(struct snd_soc_codec *codec) return ret; }
+ regmap = regmap_init_ac97(wm9712->ac97, &wm9712_regmap_config); + if (IS_ERR(regmap)) { + ret = PTR_ERR(regmap); + goto err_free_ac97_codec; + } + + snd_soc_codec_init_regmap(codec, regmap); + /* set alc mux to none */ ac97_write(codec, AC97_VIDEO, ac97_read(codec, AC97_VIDEO) | 0x3000);
return 0; +err_free_ac97_codec: + snd_soc_free_ac97_codec(wm9712->ac97); + return ret; }
static int wm9712_soc_remove(struct snd_soc_codec *codec) { struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
+ snd_soc_codec_exit_regmap(codec); snd_soc_free_ac97_codec(wm9712->ac97); return 0; } @@ -673,14 +692,8 @@ static const struct snd_soc_codec_driver soc_codec_dev_wm9712 = { .probe = wm9712_soc_probe, .remove = wm9712_soc_remove, .resume = wm9712_soc_resume, - .read = ac97_read, - .write = ac97_write, .set_bias_level = wm9712_set_bias_level, .suspend_bias_off = true, - .reg_cache_size = ARRAY_SIZE(wm9712_reg), - .reg_word_size = sizeof(u16), - .reg_cache_step = 2, - .reg_cache_default = wm9712_reg,
.component_driver = { .controls = wm9712_snd_ac97_controls,