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Diffstat (limited to 'sound/soc/codecs/wm8900.c')
-rw-r--r--sound/soc/codecs/wm8900.c808
1 files changed, 347 insertions, 461 deletions
diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index 46c5ea1ff92..d09fdce57f5 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -23,12 +23,13 @@
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
-#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
-#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
@@ -109,13 +110,14 @@
#define WM8900_REG_CLOCKING1_BCLK_DIR 0x1
#define WM8900_REG_CLOCKING1_MCLK_SRC 0x100
-#define WM8900_REG_CLOCKING1_BCLK_MASK (~0x01e)
-#define WM8900_REG_CLOCKING1_OPCLK_MASK (~0x7000)
+#define WM8900_REG_CLOCKING1_BCLK_MASK 0x01e
+#define WM8900_REG_CLOCKING1_OPCLK_MASK 0x7000
#define WM8900_REG_CLOCKING2_ADC_CLKDIV 0xe0
#define WM8900_REG_CLOCKING2_DAC_CLKDIV 0x1c
#define WM8900_REG_DACCTRL_MUTE 0x004
+#define WM8900_REG_DACCTRL_DAC_SB_FILT 0x100
#define WM8900_REG_DACCTRL_AIF_LRCLKRATE 0x400
#define WM8900_REG_AUDIO3_ADCLRC_DIR 0x0800
@@ -133,14 +135,10 @@
#define WM8900_REG_HPCTL1_HP_SHORT 0x08
#define WM8900_REG_HPCTL1_HP_SHORT2 0x04
-#define WM8900_LRC_MASK 0xfc00
-
-struct snd_soc_codec_device soc_codec_dev_wm8900;
+#define WM8900_LRC_MASK 0x03ff
struct wm8900_priv {
- struct snd_soc_codec codec;
-
- u16 reg_cache[WM8900_MAXREG];
+ struct regmap *regmap;
u32 fll_in; /* FLL input frequency */
u32 fll_out; /* FLL output frequency */
@@ -150,160 +148,91 @@ struct wm8900_priv {
* wm8900 register cache. We can't read the entire register space and we
* have slow control buses so we cache the registers.
*/
-static const u16 wm8900_reg_defaults[WM8900_MAXREG] = {
- 0x8900, 0x0000,
- 0xc000, 0x0000,
- 0x4050, 0x4000,
- 0x0008, 0x0000,
- 0x0040, 0x0040,
- 0x1004, 0x00c0,
- 0x00c0, 0x0000,
- 0x0100, 0x00c0,
- 0x00c0, 0x0000,
- 0xb001, 0x0000,
- 0x0000, 0x0044,
- 0x004c, 0x004c,
- 0x0044, 0x0044,
- 0x0000, 0x0044,
- 0x0000, 0x0000,
- 0x0002, 0x0000,
- 0x0000, 0x0000,
- 0x0000, 0x0000,
- 0x0008, 0x0000,
- 0x0000, 0x0008,
- 0x0097, 0x0100,
- 0x0000, 0x0000,
- 0x0050, 0x0050,
- 0x0055, 0x0055,
- 0x0055, 0x0000,
- 0x0000, 0x0079,
- 0x0079, 0x0079,
- 0x0079, 0x0000,
- /* Remaining registers all zero */
+static const struct reg_default wm8900_reg_defaults[] = {
+ { 1, 0x0000 },
+ { 2, 0xc000 },
+ { 3, 0x0000 },
+ { 4, 0x4050 },
+ { 5, 0x4000 },
+ { 6, 0x0008 },
+ { 7, 0x0000 },
+ { 8, 0x0040 },
+ { 9, 0x0040 },
+ { 10, 0x1004 },
+ { 11, 0x00c0 },
+ { 12, 0x00c0 },
+ { 13, 0x0000 },
+ { 14, 0x0100 },
+ { 15, 0x00c0 },
+ { 16, 0x00c0 },
+ { 17, 0x0000 },
+ { 18, 0xb001 },
+ { 19, 0x0000 },
+ { 20, 0x0000 },
+ { 21, 0x0044 },
+ { 22, 0x004c },
+ { 23, 0x004c },
+ { 24, 0x0044 },
+ { 25, 0x0044 },
+ { 26, 0x0000 },
+ { 27, 0x0044 },
+ { 28, 0x0000 },
+ { 29, 0x0000 },
+ { 30, 0x0002 },
+ { 31, 0x0000 },
+ { 32, 0x0000 },
+ { 33, 0x0000 },
+ { 34, 0x0000 },
+ { 35, 0x0000 },
+ { 36, 0x0008 },
+ { 37, 0x0000 },
+ { 38, 0x0000 },
+ { 39, 0x0008 },
+ { 40, 0x0097 },
+ { 41, 0x0100 },
+ { 42, 0x0000 },
+ { 43, 0x0000 },
+ { 44, 0x0050 },
+ { 45, 0x0050 },
+ { 46, 0x0055 },
+ { 47, 0x0055 },
+ { 48, 0x0055 },
+ { 49, 0x0000 },
+ { 50, 0x0000 },
+ { 51, 0x0079 },
+ { 52, 0x0079 },
+ { 53, 0x0079 },
+ { 54, 0x0079 },
+ { 55, 0x0000 },
};
-/*
- * read wm8900 register cache
- */
-static inline unsigned int wm8900_read_reg_cache(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- u16 *cache = codec->reg_cache;
-
- BUG_ON(reg >= WM8900_MAXREG);
-
- if (reg == WM8900_REG_ID)
- return 0;
-
- return cache[reg];
-}
-
-/*
- * write wm8900 register cache
- */
-static inline void wm8900_write_reg_cache(struct snd_soc_codec *codec,
- u16 reg, unsigned int value)
-{
- u16 *cache = codec->reg_cache;
-
- BUG_ON(reg >= WM8900_MAXREG);
-
- cache[reg] = value;
-}
-
-/*
- * write to the WM8900 register space
- */
-static int wm8900_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
-{
- u8 data[3];
-
- if (value == wm8900_read_reg_cache(codec, reg))
- return 0;
-
- /* data is
- * D15..D9 WM8900 register offset
- * D8...D0 register data
- */
- data[0] = reg;
- data[1] = value >> 8;
- data[2] = value & 0x00ff;
-
- wm8900_write_reg_cache(codec, reg, value);
- if (codec->hw_write(codec->control_data, data, 3) == 3)
- return 0;
- else
- return -EIO;
-}
-
-/*
- * Read from the wm8900.
- */
-static unsigned int wm8900_chip_read(struct snd_soc_codec *codec, u8 reg)
-{
- struct i2c_msg xfer[2];
- u16 data;
- int ret;
- struct i2c_client *client = codec->control_data;
-
- BUG_ON(reg != WM8900_REG_ID && reg != WM8900_REG_POWER1);
-
- /* Write register */
- xfer[0].addr = client->addr;
- xfer[0].flags = 0;
- xfer[0].len = 1;
- xfer[0].buf = &reg;
-
- /* Read data */
- xfer[1].addr = client->addr;
- xfer[1].flags = I2C_M_RD;
- xfer[1].len = 2;
- xfer[1].buf = (u8 *)&data;
-
- ret = i2c_transfer(client->adapter, xfer, 2);
- if (ret != 2) {
- printk(KERN_CRIT "i2c_transfer returned %d\n", ret);
- return 0;
- }
-
- return (data >> 8) | ((data & 0xff) << 8);
-}
-
-/*
- * Read from the WM8900 register space. Most registers can't be read
- * and are therefore supplied from cache.
- */
-static unsigned int wm8900_read(struct snd_soc_codec *codec, unsigned int reg)
+static bool wm8900_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8900_REG_ID:
- return wm8900_chip_read(codec, reg);
+ return true;
default:
- return wm8900_read_reg_cache(codec, reg);
+ return false;
}
}
static void wm8900_reset(struct snd_soc_codec *codec)
{
- wm8900_write(codec, WM8900_REG_RESET, 0);
-
- memcpy(codec->reg_cache, wm8900_reg_defaults,
- sizeof(codec->reg_cache));
+ snd_soc_write(codec, WM8900_REG_RESET, 0);
}
static int wm8900_hp_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
- u16 hpctl1 = wm8900_read(codec, WM8900_REG_HPCTL1);
+ u16 hpctl1 = snd_soc_read(codec, WM8900_REG_HPCTL1);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* Clamp headphone outputs */
hpctl1 = WM8900_REG_HPCTL1_HP_CLAMP_IP |
WM8900_REG_HPCTL1_HP_CLAMP_OP;
- wm8900_write(codec, WM8900_REG_HPCTL1, hpctl1);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
break;
case SND_SOC_DAPM_POST_PMU:
@@ -312,45 +241,46 @@ static int wm8900_hp_event(struct snd_soc_dapm_widget *w,
hpctl1 |= WM8900_REG_HPCTL1_HP_SHORT |
WM8900_REG_HPCTL1_HP_SHORT2 |
WM8900_REG_HPCTL1_HP_IPSTAGE_ENA;
- wm8900_write(codec, WM8900_REG_HPCTL1, hpctl1);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
msleep(400);
/* Enable the output stage */
hpctl1 &= ~WM8900_REG_HPCTL1_HP_CLAMP_OP;
hpctl1 |= WM8900_REG_HPCTL1_HP_OPSTAGE_ENA;
- wm8900_write(codec, WM8900_REG_HPCTL1, hpctl1);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
/* Remove the shorts */
hpctl1 &= ~WM8900_REG_HPCTL1_HP_SHORT2;
- wm8900_write(codec, WM8900_REG_HPCTL1, hpctl1);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
hpctl1 &= ~WM8900_REG_HPCTL1_HP_SHORT;
- wm8900_write(codec, WM8900_REG_HPCTL1, hpctl1);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
break;
case SND_SOC_DAPM_PRE_PMD:
/* Short the output */
hpctl1 |= WM8900_REG_HPCTL1_HP_SHORT;
- wm8900_write(codec, WM8900_REG_HPCTL1, hpctl1);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
/* Disable the output stage */
hpctl1 &= ~WM8900_REG_HPCTL1_HP_OPSTAGE_ENA;
- wm8900_write(codec, WM8900_REG_HPCTL1, hpctl1);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
/* Clamp the outputs and power down input */
hpctl1 |= WM8900_REG_HPCTL1_HP_CLAMP_IP |
WM8900_REG_HPCTL1_HP_CLAMP_OP;
hpctl1 &= ~WM8900_REG_HPCTL1_HP_IPSTAGE_ENA;
- wm8900_write(codec, WM8900_REG_HPCTL1, hpctl1);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
break;
case SND_SOC_DAPM_POST_PMD:
/* Disable everything */
- wm8900_write(codec, WM8900_REG_HPCTL1, 0);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, 0);
break;
default:
- BUG();
+ WARN(1, "Invalid event %d\n", event);
+ break;
}
return 0;
@@ -374,53 +304,53 @@ static const DECLARE_TLV_DB_SCALE(adc_tlv, -7200, 75, 1);
static const char *mic_bias_level_txt[] = { "0.9*AVDD", "0.65*AVDD" };
-static const struct soc_enum mic_bias_level =
-SOC_ENUM_SINGLE(WM8900_REG_INCTL, 8, 2, mic_bias_level_txt);
+static SOC_ENUM_SINGLE_DECL(mic_bias_level,
+ WM8900_REG_INCTL, 8, mic_bias_level_txt);
static const char *dac_mute_rate_txt[] = { "Fast", "Slow" };
-static const struct soc_enum dac_mute_rate =
-SOC_ENUM_SINGLE(WM8900_REG_DACCTRL, 7, 2, dac_mute_rate_txt);
+static SOC_ENUM_SINGLE_DECL(dac_mute_rate,
+ WM8900_REG_DACCTRL, 7, dac_mute_rate_txt);
static const char *dac_deemphasis_txt[] = {
"Disabled", "32kHz", "44.1kHz", "48kHz"
};
-static const struct soc_enum dac_deemphasis =
-SOC_ENUM_SINGLE(WM8900_REG_DACCTRL, 4, 4, dac_deemphasis_txt);
+static SOC_ENUM_SINGLE_DECL(dac_deemphasis,
+ WM8900_REG_DACCTRL, 4, dac_deemphasis_txt);
static const char *adc_hpf_cut_txt[] = {
"Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3"
};
-static const struct soc_enum adc_hpf_cut =
-SOC_ENUM_SINGLE(WM8900_REG_ADCCTRL, 5, 4, adc_hpf_cut_txt);
+static SOC_ENUM_SINGLE_DECL(adc_hpf_cut,
+ WM8900_REG_ADCCTRL, 5, adc_hpf_cut_txt);
static const char *lr_txt[] = {
"Left", "Right"
};
-static const struct soc_enum aifl_src =
-SOC_ENUM_SINGLE(WM8900_REG_AUDIO1, 15, 2, lr_txt);
+static SOC_ENUM_SINGLE_DECL(aifl_src,
+ WM8900_REG_AUDIO1, 15, lr_txt);
-static const struct soc_enum aifr_src =
-SOC_ENUM_SINGLE(WM8900_REG_AUDIO1, 14, 2, lr_txt);
+static SOC_ENUM_SINGLE_DECL(aifr_src,
+ WM8900_REG_AUDIO1, 14, lr_txt);
-static const struct soc_enum dacl_src =
-SOC_ENUM_SINGLE(WM8900_REG_AUDIO2, 15, 2, lr_txt);
+static SOC_ENUM_SINGLE_DECL(dacl_src,
+ WM8900_REG_AUDIO2, 15, lr_txt);
-static const struct soc_enum dacr_src =
-SOC_ENUM_SINGLE(WM8900_REG_AUDIO2, 14, 2, lr_txt);
+static SOC_ENUM_SINGLE_DECL(dacr_src,
+ WM8900_REG_AUDIO2, 14, lr_txt);
static const char *sidetone_txt[] = {
"Disabled", "Left ADC", "Right ADC"
};
-static const struct soc_enum dacl_sidetone =
-SOC_ENUM_SINGLE(WM8900_REG_SIDETONE, 2, 3, sidetone_txt);
+static SOC_ENUM_SINGLE_DECL(dacl_sidetone,
+ WM8900_REG_SIDETONE, 2, sidetone_txt);
-static const struct soc_enum dacr_sidetone =
-SOC_ENUM_SINGLE(WM8900_REG_SIDETONE, 0, 3, sidetone_txt);
+static SOC_ENUM_SINGLE_DECL(dacr_sidetone,
+ WM8900_REG_SIDETONE, 0, sidetone_txt);
static const struct snd_kcontrol_new wm8900_snd_controls[] = {
SOC_ENUM("Mic Bias Level", mic_bias_level),
@@ -439,7 +369,6 @@ SOC_SINGLE("DAC Soft Mute Switch", WM8900_REG_DACCTRL, 6, 1, 1),
SOC_ENUM("DAC Mute Rate", dac_mute_rate),
SOC_SINGLE("DAC Mono Switch", WM8900_REG_DACCTRL, 9, 1, 0),
SOC_ENUM("DAC Deemphasis", dac_deemphasis),
-SOC_SINGLE("DAC Sloping Stopband Filter Switch", WM8900_REG_DACCTRL, 8, 1, 0),
SOC_SINGLE("DAC Sigma-Delta Modulator Clock Switch", WM8900_REG_DACCTRL,
12, 1, 0),
@@ -565,10 +494,10 @@ SOC_DAPM_SINGLE("RINPUT2 Switch", WM8900_REG_INCTL, 1, 1, 0),
SOC_DAPM_SINGLE("RINPUT3 Switch", WM8900_REG_INCTL, 0, 1, 0),
};
-static const char *wm9700_lp_mux[] = { "Disabled", "Enabled" };
+static const char *wm8900_lp_mux[] = { "Disabled", "Enabled" };
-static const struct soc_enum wm8900_lineout2_lp_mux =
-SOC_ENUM_SINGLE(WM8900_REG_LOUTMIXCTL1, 1, 2, wm9700_lp_mux);
+static SOC_ENUM_SINGLE_DECL(wm8900_lineout2_lp_mux,
+ WM8900_REG_LOUTMIXCTL1, 1, wm8900_lp_mux);
static const struct snd_kcontrol_new wm8900_lineout2_lp =
SOC_DAPM_ENUM("Route", wm8900_lineout2_lp_mux);
@@ -608,7 +537,7 @@ SND_SOC_DAPM_MIXER("Right Input Mixer", WM8900_REG_POWER2, 4, 0,
wm8900_rinmix_controls,
ARRAY_SIZE(wm8900_rinmix_controls)),
-SND_SOC_DAPM_MICBIAS("Mic Bias", WM8900_REG_POWER1, 4, 0),
+SND_SOC_DAPM_SUPPLY("Mic Bias", WM8900_REG_POWER1, 4, 0, NULL, 0),
SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8900_REG_POWER2, 1, 0),
SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8900_REG_POWER2, 0, 0),
@@ -638,7 +567,7 @@ SND_SOC_DAPM_MIXER("Right Output Mixer", WM8900_REG_POWER3, 2, 0,
};
/* Target, Path, Source */
-static const struct snd_soc_dapm_route audio_map[] = {
+static const struct snd_soc_dapm_route wm8900_dapm_routes[] = {
/* Inputs */
{"Left Input PGA", "LINPUT1 Switch", "LINPUT1"},
{"Left Input PGA", "LINPUT2 Switch", "LINPUT2"},
@@ -702,28 +631,14 @@ static const struct snd_soc_dapm_route audio_map[] = {
{"HP_R", NULL, "Headphone Amplifier"},
};
-static int wm8900_add_widgets(struct snd_soc_codec *codec)
-{
- snd_soc_dapm_new_controls(codec, wm8900_dapm_widgets,
- ARRAY_SIZE(wm8900_dapm_widgets));
-
- snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
-
- snd_soc_dapm_new_widgets(codec);
-
- return 0;
-}
-
static int wm8900_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct snd_soc_codec *codec = dai->codec;
u16 reg;
- reg = wm8900_read(codec, WM8900_REG_AUDIO1) & ~0x60;
+ reg = snd_soc_read(codec, WM8900_REG_AUDIO1) & ~0x60;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
@@ -741,7 +656,18 @@ static int wm8900_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
- wm8900_write(codec, WM8900_REG_AUDIO1, reg);
+ snd_soc_write(codec, WM8900_REG_AUDIO1, reg);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ reg = snd_soc_read(codec, WM8900_REG_DACCTRL);
+
+ if (params_rate(params) <= 24000)
+ reg |= WM8900_REG_DACCTRL_DAC_SB_FILT;
+ else
+ reg &= ~WM8900_REG_DACCTRL_DAC_SB_FILT;
+
+ snd_soc_write(codec, WM8900_REG_DACCTRL, reg);
+ }
return 0;
}
@@ -766,7 +692,8 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
unsigned int K, Ndiv, Nmod, target;
unsigned int div;
- BUG_ON(!Fout);
+ if (WARN_ON(!Fout))
+ return -EINVAL;
/* The FLL must run at 90-100MHz which is then scaled down to
* the output value by FLLCLK_DIV. */
@@ -778,11 +705,11 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
}
if (target > 100000000)
- printk(KERN_WARNING "wm8900: FLL rate %d out of range, Fref=%d"
- " Fout=%d\n", target, Fref, Fout);
+ printk(KERN_WARNING "wm8900: FLL rate %u out of range, Fref=%u"
+ " Fout=%u\n", target, Fref, Fout);
if (div > 32) {
printk(KERN_ERR "wm8900: Invalid FLL division rate %u, "
- "Fref=%d, Fout=%d, target=%d\n",
+ "Fref=%u, Fout=%u, target=%u\n",
div, Fref, Fout, target);
return -EINVAL;
}
@@ -817,8 +744,9 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
/* Move down to proper range now rounding is done */
fll_div->k = K / 10;
- BUG_ON(target != Fout * (fll_div->fllclk_div << 2));
- BUG_ON(!K && target != Fref * fll_div->fll_ratio * fll_div->n);
+ if (WARN_ON(target != Fout * (fll_div->fllclk_div << 2)) ||
+ WARN_ON(!K && target != Fref * fll_div->fll_ratio * fll_div->n))
+ return -EINVAL;
return 0;
}
@@ -826,28 +754,22 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
static int wm8900_set_fll(struct snd_soc_codec *codec,
int fll_id, unsigned int freq_in, unsigned int freq_out)
{
- struct wm8900_priv *wm8900 = codec->private_data;
+ struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
struct _fll_div fll_div;
- unsigned int reg;
if (wm8900->fll_in == freq_in && wm8900->fll_out == freq_out)
return 0;
/* The digital side should be disabled during any change. */
- reg = wm8900_read(codec, WM8900_REG_POWER1);
- wm8900_write(codec, WM8900_REG_POWER1,
- reg & (~WM8900_REG_POWER1_FLL_ENA));
+ snd_soc_update_bits(codec, WM8900_REG_POWER1,
+ WM8900_REG_POWER1_FLL_ENA, 0);
/* Disable the FLL? */
if (!freq_in || !freq_out) {
- reg = wm8900_read(codec, WM8900_REG_CLOCKING1);
- wm8900_write(codec, WM8900_REG_CLOCKING1,
- reg & (~WM8900_REG_CLOCKING1_MCLK_SRC));
-
- reg = wm8900_read(codec, WM8900_REG_FLLCTL1);
- wm8900_write(codec, WM8900_REG_FLLCTL1,
- reg & (~WM8900_REG_FLLCTL1_OSC_ENA));
-
+ snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
+ WM8900_REG_CLOCKING1_MCLK_SRC, 0);
+ snd_soc_update_bits(codec, WM8900_REG_FLLCTL1,
+ WM8900_REG_FLLCTL1_OSC_ENA, 0);
wm8900->fll_in = freq_in;
wm8900->fll_out = freq_out;
@@ -862,40 +784,39 @@ static int wm8900_set_fll(struct snd_soc_codec *codec,
/* The osclilator *MUST* be enabled before we enable the
* digital circuit. */
- wm8900_write(codec, WM8900_REG_FLLCTL1,
+ snd_soc_write(codec, WM8900_REG_FLLCTL1,
fll_div.fll_ratio | WM8900_REG_FLLCTL1_OSC_ENA);
- wm8900_write(codec, WM8900_REG_FLLCTL4, fll_div.n >> 5);
- wm8900_write(codec, WM8900_REG_FLLCTL5,
+ snd_soc_write(codec, WM8900_REG_FLLCTL4, fll_div.n >> 5);
+ snd_soc_write(codec, WM8900_REG_FLLCTL5,
(fll_div.fllclk_div << 6) | (fll_div.n & 0x1f));
if (fll_div.k) {
- wm8900_write(codec, WM8900_REG_FLLCTL2,
+ snd_soc_write(codec, WM8900_REG_FLLCTL2,
(fll_div.k >> 8) | 0x100);
- wm8900_write(codec, WM8900_REG_FLLCTL3, fll_div.k & 0xff);
+ snd_soc_write(codec, WM8900_REG_FLLCTL3, fll_div.k & 0xff);
} else
- wm8900_write(codec, WM8900_REG_FLLCTL2, 0);
+ snd_soc_write(codec, WM8900_REG_FLLCTL2, 0);
if (fll_div.fll_slow_lock_ref)
- wm8900_write(codec, WM8900_REG_FLLCTL6,
+ snd_soc_write(codec, WM8900_REG_FLLCTL6,
WM8900_REG_FLLCTL6_FLL_SLOW_LOCK_REF);
else
- wm8900_write(codec, WM8900_REG_FLLCTL6, 0);
+ snd_soc_write(codec, WM8900_REG_FLLCTL6, 0);
- reg = wm8900_read(codec, WM8900_REG_POWER1);
- wm8900_write(codec, WM8900_REG_POWER1,
- reg | WM8900_REG_POWER1_FLL_ENA);
+ snd_soc_update_bits(codec, WM8900_REG_POWER1,
+ WM8900_REG_POWER1_FLL_ENA,
+ WM8900_REG_POWER1_FLL_ENA);
reenable:
- reg = wm8900_read(codec, WM8900_REG_CLOCKING1);
- wm8900_write(codec, WM8900_REG_CLOCKING1,
- reg | WM8900_REG_CLOCKING1_MCLK_SRC);
-
+ snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
+ WM8900_REG_CLOCKING1_MCLK_SRC,
+ WM8900_REG_CLOCKING1_MCLK_SRC);
return 0;
}
-static int wm8900_set_dai_pll(struct snd_soc_dai *codec_dai,
- int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm8900_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+ int source, unsigned int freq_in, unsigned int freq_out)
{
return wm8900_set_fll(codec_dai->codec, pll_id, freq_in, freq_out);
}
@@ -904,43 +825,35 @@ static int wm8900_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
int div_id, int div)
{
struct snd_soc_codec *codec = codec_dai->codec;
- unsigned int reg;
switch (div_id) {
case WM8900_BCLK_DIV:
- reg = wm8900_read(codec, WM8900_REG_CLOCKING1);
- wm8900_write(codec, WM8900_REG_CLOCKING1,
- div | (reg & WM8900_REG_CLOCKING1_BCLK_MASK));
+ snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
+ WM8900_REG_CLOCKING1_BCLK_MASK, div);
break;
case WM8900_OPCLK_DIV:
- reg = wm8900_read(codec, WM8900_REG_CLOCKING1);
- wm8900_write(codec, WM8900_REG_CLOCKING1,
- div | (reg & WM8900_REG_CLOCKING1_OPCLK_MASK));
+ snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
+ WM8900_REG_CLOCKING1_OPCLK_MASK, div);
break;
case WM8900_DAC_LRCLK:
- reg = wm8900_read(codec, WM8900_REG_AUDIO4);
- wm8900_write(codec, WM8900_REG_AUDIO4,
- div | (reg & WM8900_LRC_MASK));
+ snd_soc_update_bits(codec, WM8900_REG_AUDIO4,
+ WM8900_LRC_MASK, div);
break;
case WM8900_ADC_LRCLK:
- reg = wm8900_read(codec, WM8900_REG_AUDIO3);
- wm8900_write(codec, WM8900_REG_AUDIO3,
- div | (reg & WM8900_LRC_MASK));
+ snd_soc_update_bits(codec, WM8900_REG_AUDIO3,
+ WM8900_LRC_MASK, div);
break;
case WM8900_DAC_CLKDIV:
- reg = wm8900_read(codec, WM8900_REG_CLOCKING2);
- wm8900_write(codec, WM8900_REG_CLOCKING2,
- div | (reg & WM8900_REG_CLOCKING2_DAC_CLKDIV));
+ snd_soc_update_bits(codec, WM8900_REG_CLOCKING2,
+ WM8900_REG_CLOCKING2_DAC_CLKDIV, div);
break;
case WM8900_ADC_CLKDIV:
- reg = wm8900_read(codec, WM8900_REG_CLOCKING2);
- wm8900_write(codec, WM8900_REG_CLOCKING2,
- div | (reg & WM8900_REG_CLOCKING2_ADC_CLKDIV));
+ snd_soc_update_bits(codec, WM8900_REG_CLOCKING2,
+ WM8900_REG_CLOCKING2_ADC_CLKDIV, div);
break;
case WM8900_LRCLK_MODE:
- reg = wm8900_read(codec, WM8900_REG_DACCTRL);
- wm8900_write(codec, WM8900_REG_DACCTRL,
- div | (reg & WM8900_REG_DACCTRL_AIF_LRCLKRATE));
+ snd_soc_update_bits(codec, WM8900_REG_DACCTRL,
+ WM8900_REG_DACCTRL_AIF_LRCLKRATE, div);
break;
default:
return -EINVAL;
@@ -956,10 +869,10 @@ static int wm8900_set_dai_fmt(struct snd_soc_dai *codec_dai,
struct snd_soc_codec *codec = codec_dai->codec;
unsigned int clocking1, aif1, aif3, aif4;
- clocking1 = wm8900_read(codec, WM8900_REG_CLOCKING1);
- aif1 = wm8900_read(codec, WM8900_REG_AUDIO1);
- aif3 = wm8900_read(codec, WM8900_REG_AUDIO3);
- aif4 = wm8900_read(codec, WM8900_REG_AUDIO4);
+ clocking1 = snd_soc_read(codec, WM8900_REG_CLOCKING1);
+ aif1 = snd_soc_read(codec, WM8900_REG_AUDIO1);
+ aif3 = snd_soc_read(codec, WM8900_REG_AUDIO3);
+ aif4 = snd_soc_read(codec, WM8900_REG_AUDIO4);
/* set master/slave audio interface */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
@@ -1055,10 +968,10 @@ static int wm8900_set_dai_fmt(struct snd_soc_dai *codec_dai,
return -EINVAL;
}
- wm8900_write(codec, WM8900_REG_CLOCKING1, clocking1);
- wm8900_write(codec, WM8900_REG_AUDIO1, aif1);
- wm8900_write(codec, WM8900_REG_AUDIO3, aif3);
- wm8900_write(codec, WM8900_REG_AUDIO4, aif4);
+ snd_soc_write(codec, WM8900_REG_CLOCKING1, clocking1);
+ snd_soc_write(codec, WM8900_REG_AUDIO1, aif1);
+ snd_soc_write(codec, WM8900_REG_AUDIO3, aif3);
+ snd_soc_write(codec, WM8900_REG_AUDIO4, aif4);
return 0;
}
@@ -1068,14 +981,14 @@ static int wm8900_digital_mute(struct snd_soc_dai *codec_dai, int mute)
struct snd_soc_codec *codec = codec_dai->codec;
u16 reg;
- reg = wm8900_read(codec, WM8900_REG_DACCTRL);
+ reg = snd_soc_read(codec, WM8900_REG_DACCTRL);
if (mute)
reg |= WM8900_REG_DACCTRL_MUTE;
else
reg &= ~WM8900_REG_DACCTRL_MUTE;
- wm8900_write(codec, WM8900_REG_DACCTRL, reg);
+ snd_soc_write(codec, WM8900_REG_DACCTRL, reg);
return 0;
}
@@ -1088,7 +1001,7 @@ static int wm8900_digital_mute(struct snd_soc_dai *codec_dai, int mute)
(SNDRV_PCM_FORMAT_S16_LE | SNDRV_PCM_FORMAT_S20_3LE | \
SNDRV_PCM_FORMAT_S24_LE)
-static struct snd_soc_dai_ops wm8900_dai_ops = {
+static const struct snd_soc_dai_ops wm8900_dai_ops = {
.hw_params = wm8900_hw_params,
.set_clkdiv = wm8900_set_dai_clkdiv,
.set_pll = wm8900_set_dai_pll,
@@ -1096,8 +1009,8 @@ static struct snd_soc_dai_ops wm8900_dai_ops = {
.digital_mute = wm8900_digital_mute,
};
-struct snd_soc_dai wm8900_dai = {
- .name = "WM8900 HiFi",
+static struct snd_soc_dai_driver wm8900_dai = {
+ .name = "wm8900-hifi",
.playback = {
.stream_name = "HiFi Playback",
.channels_min = 1,
@@ -1114,7 +1027,6 @@ struct snd_soc_dai wm8900_dai = {
},
.ops = &wm8900_dai_ops,
};
-EXPORT_SYMBOL_GPL(wm8900_dai);
static int wm8900_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
@@ -1124,12 +1036,12 @@ static int wm8900_set_bias_level(struct snd_soc_codec *codec,
switch (level) {
case SND_SOC_BIAS_ON:
/* Enable thermal shutdown */
- reg = wm8900_read(codec, WM8900_REG_GPIO);
- wm8900_write(codec, WM8900_REG_GPIO,
- reg | WM8900_REG_GPIO_TEMP_ENA);
- reg = wm8900_read(codec, WM8900_REG_ADDCTL);
- wm8900_write(codec, WM8900_REG_ADDCTL,
- reg | WM8900_REG_ADDCTL_TEMP_SD);
+ snd_soc_update_bits(codec, WM8900_REG_GPIO,
+ WM8900_REG_GPIO_TEMP_ENA,
+ WM8900_REG_GPIO_TEMP_ENA);
+ snd_soc_update_bits(codec, WM8900_REG_ADDCTL,
+ WM8900_REG_ADDCTL_TEMP_SD,
+ WM8900_REG_ADDCTL_TEMP_SD);
break;
case SND_SOC_BIAS_PREPARE:
@@ -1137,83 +1049,81 @@ static int wm8900_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_STANDBY:
/* Charge capacitors if initial power up */
- if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
/* STARTUP_BIAS_ENA on */
- wm8900_write(codec, WM8900_REG_POWER1,
+ snd_soc_write(codec, WM8900_REG_POWER1,
WM8900_REG_POWER1_STARTUP_BIAS_ENA);
/* Startup bias mode */
- wm8900_write(codec, WM8900_REG_ADDCTL,
+ snd_soc_write(codec, WM8900_REG_ADDCTL,
WM8900_REG_ADDCTL_BIAS_SRC |
WM8900_REG_ADDCTL_VMID_SOFTST);
/* VMID 2x50k */
- wm8900_write(codec, WM8900_REG_POWER1,
+ snd_soc_write(codec, WM8900_REG_POWER1,
WM8900_REG_POWER1_STARTUP_BIAS_ENA | 0x1);
/* Allow capacitors to charge */
schedule_timeout_interruptible(msecs_to_jiffies(400));
/* Enable bias */
- wm8900_write(codec, WM8900_REG_POWER1,
+ snd_soc_write(codec, WM8900_REG_POWER1,
WM8900_REG_POWER1_STARTUP_BIAS_ENA |
WM8900_REG_POWER1_BIAS_ENA | 0x1);
- wm8900_write(codec, WM8900_REG_ADDCTL, 0);
+ snd_soc_write(codec, WM8900_REG_ADDCTL, 0);
- wm8900_write(codec, WM8900_REG_POWER1,
+ snd_soc_write(codec, WM8900_REG_POWER1,
WM8900_REG_POWER1_BIAS_ENA | 0x1);
}
- reg = wm8900_read(codec, WM8900_REG_POWER1);
- wm8900_write(codec, WM8900_REG_POWER1,
+ reg = snd_soc_read(codec, WM8900_REG_POWER1);
+ snd_soc_write(codec, WM8900_REG_POWER1,
(reg & WM8900_REG_POWER1_FLL_ENA) |
WM8900_REG_POWER1_BIAS_ENA | 0x1);
- wm8900_write(codec, WM8900_REG_POWER2,
+ snd_soc_write(codec, WM8900_REG_POWER2,
WM8900_REG_POWER2_SYSCLK_ENA);
- wm8900_write(codec, WM8900_REG_POWER3, 0);
+ snd_soc_write(codec, WM8900_REG_POWER3, 0);
break;
case SND_SOC_BIAS_OFF:
/* Startup bias enable */
- reg = wm8900_read(codec, WM8900_REG_POWER1);
- wm8900_write(codec, WM8900_REG_POWER1,
+ reg = snd_soc_read(codec, WM8900_REG_POWER1);
+ snd_soc_write(codec, WM8900_REG_POWER1,
reg & WM8900_REG_POWER1_STARTUP_BIAS_ENA);
- wm8900_write(codec, WM8900_REG_ADDCTL,
+ snd_soc_write(codec, WM8900_REG_ADDCTL,
WM8900_REG_ADDCTL_BIAS_SRC |
WM8900_REG_ADDCTL_VMID_SOFTST);
/* Discharge caps */
- wm8900_write(codec, WM8900_REG_POWER1,
+ snd_soc_write(codec, WM8900_REG_POWER1,
WM8900_REG_POWER1_STARTUP_BIAS_ENA);
schedule_timeout_interruptible(msecs_to_jiffies(500));
/* Remove clamp */
- wm8900_write(codec, WM8900_REG_HPCTL1, 0);
+ snd_soc_write(codec, WM8900_REG_HPCTL1, 0);
/* Power down */
- wm8900_write(codec, WM8900_REG_ADDCTL, 0);
- wm8900_write(codec, WM8900_REG_POWER1, 0);
- wm8900_write(codec, WM8900_REG_POWER2, 0);
- wm8900_write(codec, WM8900_REG_POWER3, 0);
+ snd_soc_write(codec, WM8900_REG_ADDCTL, 0);
+ snd_soc_write(codec, WM8900_REG_POWER1, 0);
+ snd_soc_write(codec, WM8900_REG_POWER2, 0);
+ snd_soc_write(codec, WM8900_REG_POWER3, 0);
/* Need to let things settle before stopping the clock
* to ensure that restart works, see "Stopping the
* master clock" in the datasheet. */
schedule_timeout_interruptible(msecs_to_jiffies(1));
- wm8900_write(codec, WM8900_REG_POWER2,
+ snd_soc_write(codec, WM8900_REG_POWER2,
WM8900_REG_POWER2_SYSCLK_ENA);
break;
}
- codec->bias_level = level;
+ codec->dapm.bias_level = level;
return 0;
}
-static int wm8900_suspend(struct platform_device *pdev, pm_message_t state)
+static int wm8900_suspend(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8900_priv *wm8900 = codec->private_data;
+ struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
int fll_out = wm8900->fll_out;
int fll_in = wm8900->fll_in;
int ret;
@@ -1221,7 +1131,7 @@ static int wm8900_suspend(struct platform_device *pdev, pm_message_t state)
/* Stop the FLL in an orderly fashion */
ret = wm8900_set_fll(codec, 0, 0, 0);
if (ret != 0) {
- dev_err(&pdev->dev, "Failed to stop FLL\n");
+ dev_err(codec->dev, "Failed to stop FLL\n");
return ret;
}
@@ -1233,18 +1143,19 @@ static int wm8900_suspend(struct platform_device *pdev, pm_message_t state)
return 0;
}
-static int wm8900_resume(struct platform_device *pdev)
+static int wm8900_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8900_priv *wm8900 = codec->private_data;
- u16 *cache;
- int i, ret;
-
- cache = kmemdup(codec->reg_cache, sizeof(wm8900_reg_defaults),
- GFP_KERNEL);
+ struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
+ int ret;
wm8900_reset(codec);
+
+ ret = regcache_sync(wm8900->regmap);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to restore cache: %d\n", ret);
+ return ret;
+ }
+
wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* Restart the FLL? */
@@ -1257,221 +1168,196 @@ static int wm8900_resume(struct platform_device *pdev)
ret = wm8900_set_fll(codec, 0, fll_in, fll_out);
if (ret != 0) {
- dev_err(&pdev->dev, "Failed to restart FLL\n");
+ dev_err(codec->dev, "Failed to restart FLL\n");
return ret;
}
}
- if (cache) {
- for (i = 0; i < WM8900_MAXREG; i++)
- wm8900_write(codec, i, cache[i]);
- kfree(cache);
- } else
- dev_err(&pdev->dev, "Unable to allocate register cache\n");
-
return 0;
}
-static struct snd_soc_codec *wm8900_codec;
-
-static __devinit int wm8900_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int wm8900_probe(struct snd_soc_codec *codec)
{
- struct wm8900_priv *wm8900;
- struct snd_soc_codec *codec;
- unsigned int reg;
- int ret;
+ int reg;
- wm8900 = kzalloc(sizeof(struct wm8900_priv), GFP_KERNEL);
- if (wm8900 == NULL)
- return -ENOMEM;
-
- codec = &wm8900->codec;
- codec->private_data = wm8900;
- codec->reg_cache = &wm8900->reg_cache[0];
- codec->reg_cache_size = WM8900_MAXREG;
-
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- codec->name = "WM8900";
- codec->owner = THIS_MODULE;
- codec->read = wm8900_read;
- codec->write = wm8900_write;
- codec->dai = &wm8900_dai;
- codec->num_dai = 1;
- codec->hw_write = (hw_write_t)i2c_master_send;
- codec->control_data = i2c;
- codec->set_bias_level = wm8900_set_bias_level;
- codec->dev = &i2c->dev;
-
- reg = wm8900_read(codec, WM8900_REG_ID);
+ reg = snd_soc_read(codec, WM8900_REG_ID);
if (reg != 0x8900) {
- dev_err(&i2c->dev, "Device is not a WM8900 - ID %x\n", reg);
- ret = -ENODEV;
- goto err;
+ dev_err(codec->dev, "Device is not a WM8900 - ID %x\n", reg);
+ return -ENODEV;
}
- /* Read back from the chip */
- reg = wm8900_chip_read(codec, WM8900_REG_POWER1);
- reg = (reg >> 12) & 0xf;
- dev_info(&i2c->dev, "WM8900 revision %d\n", reg);
-
wm8900_reset(codec);
/* Turn the chip on */
wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* Latch the volume update bits */
- wm8900_write(codec, WM8900_REG_LINVOL,
- wm8900_read(codec, WM8900_REG_LINVOL) | 0x100);
- wm8900_write(codec, WM8900_REG_RINVOL,
- wm8900_read(codec, WM8900_REG_RINVOL) | 0x100);
- wm8900_write(codec, WM8900_REG_LOUT1CTL,
- wm8900_read(codec, WM8900_REG_LOUT1CTL) | 0x100);
- wm8900_write(codec, WM8900_REG_ROUT1CTL,
- wm8900_read(codec, WM8900_REG_ROUT1CTL) | 0x100);
- wm8900_write(codec, WM8900_REG_LOUT2CTL,
- wm8900_read(codec, WM8900_REG_LOUT2CTL) | 0x100);
- wm8900_write(codec, WM8900_REG_ROUT2CTL,
- wm8900_read(codec, WM8900_REG_ROUT2CTL) | 0x100);
- wm8900_write(codec, WM8900_REG_LDAC_DV,
- wm8900_read(codec, WM8900_REG_LDAC_DV) | 0x100);
- wm8900_write(codec, WM8900_REG_RDAC_DV,
- wm8900_read(codec, WM8900_REG_RDAC_DV) | 0x100);
- wm8900_write(codec, WM8900_REG_LADC_DV,
- wm8900_read(codec, WM8900_REG_LADC_DV) | 0x100);
- wm8900_write(codec, WM8900_REG_RADC_DV,
- wm8900_read(codec, WM8900_REG_RADC_DV) | 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_LINVOL, 0x100, 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_RINVOL, 0x100, 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_LOUT1CTL, 0x100, 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_ROUT1CTL, 0x100, 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_LOUT2CTL, 0x100, 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_ROUT2CTL, 0x100, 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_LDAC_DV, 0x100, 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_RDAC_DV, 0x100, 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_LADC_DV, 0x100, 0x100);
+ snd_soc_update_bits(codec, WM8900_REG_RADC_DV, 0x100, 0x100);
/* Set the DAC and mixer output bias */
- wm8900_write(codec, WM8900_REG_OUTBIASCTL, 0x81);
+ snd_soc_write(codec, WM8900_REG_OUTBIASCTL, 0x81);
- wm8900_dai.dev = &i2c->dev;
+ return 0;
+}
- wm8900_codec = codec;
+/* power down chip */
+static int wm8900_remove(struct snd_soc_codec *codec)
+{
+ wm8900_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ return 0;
+}
- ret = snd_soc_register_codec(codec);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
- goto err;
- }
+static struct snd_soc_codec_driver soc_codec_dev_wm8900 = {
+ .probe = wm8900_probe,
+ .remove = wm8900_remove,
+ .suspend = wm8900_suspend,
+ .resume = wm8900_resume,
+ .set_bias_level = wm8900_set_bias_level,
+
+ .controls = wm8900_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8900_snd_controls),
+ .dapm_widgets = wm8900_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8900_dapm_widgets),
+ .dapm_routes = wm8900_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8900_dapm_routes),
+};
- ret = snd_soc_register_dai(&wm8900_dai);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to register DAI: %d\n", ret);
- goto err_codec;
- }
+static const struct regmap_config wm8900_regmap = {
+ .reg_bits = 8,
+ .val_bits = 16,
+ .max_register = WM8900_MAXREG,
- return ret;
+ .reg_defaults = wm8900_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8900_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
-err_codec:
- snd_soc_unregister_codec(codec);
-err:
- kfree(wm8900);
- wm8900_codec = NULL;
- return ret;
-}
+ .volatile_reg = wm8900_volatile_register,
+};
-static __devexit int wm8900_i2c_remove(struct i2c_client *client)
+#if defined(CONFIG_SPI_MASTER)
+static int wm8900_spi_probe(struct spi_device *spi)
{
- snd_soc_unregister_dai(&wm8900_dai);
- snd_soc_unregister_codec(wm8900_codec);
+ struct wm8900_priv *wm8900;
+ int ret;
- wm8900_set_bias_level(wm8900_codec, SND_SOC_BIAS_OFF);
+ wm8900 = devm_kzalloc(&spi->dev, sizeof(struct wm8900_priv),
+ GFP_KERNEL);
+ if (wm8900 == NULL)
+ return -ENOMEM;
- wm8900_dai.dev = NULL;
- kfree(wm8900_codec->private_data);
- wm8900_codec = NULL;
+ wm8900->regmap = devm_regmap_init_spi(spi, &wm8900_regmap);
+ if (IS_ERR(wm8900->regmap))
+ return PTR_ERR(wm8900->regmap);
- return 0;
+ spi_set_drvdata(spi, wm8900);
+
+ ret = snd_soc_register_codec(&spi->dev,
+ &soc_codec_dev_wm8900, &wm8900_dai, 1);
+
+ return ret;
}
-static const struct i2c_device_id wm8900_i2c_id[] = {
- { "wm8900", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, wm8900_i2c_id);
+static int wm8900_spi_remove(struct spi_device *spi)
+{
+ snd_soc_unregister_codec(&spi->dev);
+ return 0;
+}
-static struct i2c_driver wm8900_i2c_driver = {
+static struct spi_driver wm8900_spi_driver = {
.driver = {
- .name = "WM8900",
- .owner = THIS_MODULE,
+ .name = "wm8900",
+ .owner = THIS_MODULE,
},
- .probe = wm8900_i2c_probe,
- .remove = __devexit_p(wm8900_i2c_remove),
- .id_table = wm8900_i2c_id,
+ .probe = wm8900_spi_probe,
+ .remove = wm8900_spi_remove,
};
+#endif /* CONFIG_SPI_MASTER */
-static int wm8900_probe(struct platform_device *pdev)
+#if IS_ENABLED(CONFIG_I2C)
+static int wm8900_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec;
- int ret = 0;
-
- if (!wm8900_codec) {
- dev_err(&pdev->dev, "I2C client not yet instantiated\n");
- return -ENODEV;
- }
-
- codec = wm8900_codec;
- socdev->card->codec = codec;
+ struct wm8900_priv *wm8900;
+ int ret;
- /* Register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0) {
- dev_err(&pdev->dev, "Failed to register new PCMs\n");
- goto pcm_err;
- }
+ wm8900 = devm_kzalloc(&i2c->dev, sizeof(struct wm8900_priv),
+ GFP_KERNEL);
+ if (wm8900 == NULL)
+ return -ENOMEM;
- snd_soc_add_controls(codec, wm8900_snd_controls,
- ARRAY_SIZE(wm8900_snd_controls));
- wm8900_add_widgets(codec);
+ wm8900->regmap = devm_regmap_init_i2c(i2c, &wm8900_regmap);
+ if (IS_ERR(wm8900->regmap))
+ return PTR_ERR(wm8900->regmap);
- ret = snd_soc_init_card(socdev);
- if (ret < 0) {
- dev_err(&pdev->dev, "Failed to register card\n");
- goto card_err;
- }
+ i2c_set_clientdata(i2c, wm8900);
- return ret;
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_wm8900, &wm8900_dai, 1);
-card_err:
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-pcm_err:
return ret;
}
-/* power down chip */
-static int wm8900_remove(struct platform_device *pdev)
+static int wm8900_i2c_remove(struct i2c_client *client)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-
+ snd_soc_unregister_codec(&client->dev);
return 0;
}
-struct snd_soc_codec_device soc_codec_dev_wm8900 = {
- .probe = wm8900_probe,
- .remove = wm8900_remove,
- .suspend = wm8900_suspend,
- .resume = wm8900_resume,
+static const struct i2c_device_id wm8900_i2c_id[] = {
+ { "wm8900", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8900_i2c_id);
+
+static struct i2c_driver wm8900_i2c_driver = {
+ .driver = {
+ .name = "wm8900",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8900_i2c_probe,
+ .remove = wm8900_i2c_remove,
+ .id_table = wm8900_i2c_id,
};
-EXPORT_SYMBOL_GPL(soc_codec_dev_wm8900);
+#endif
static int __init wm8900_modinit(void)
{
- return i2c_add_driver(&wm8900_i2c_driver);
+ int ret = 0;
+#if IS_ENABLED(CONFIG_I2C)
+ ret = i2c_add_driver(&wm8900_i2c_driver);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register wm8900 I2C driver: %d\n",
+ ret);
+ }
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ ret = spi_register_driver(&wm8900_spi_driver);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register wm8900 SPI driver: %d\n",
+ ret);
+ }
+#endif
+ return ret;
}
module_init(wm8900_modinit);
static void __exit wm8900_exit(void)
{
+#if IS_ENABLED(CONFIG_I2C)
i2c_del_driver(&wm8900_i2c_driver);
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ spi_unregister_driver(&wm8900_spi_driver);
+#endif
}
module_exit(wm8900_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 23:02:41 +0000