From 3ad5e861a715cbe932cd145d4612c11e5912a72f Mon Sep 17 00:00:00 2001 From: Zidan Wang Date: Thu, 27 Nov 2014 16:53:08 +0800 Subject: ASoC: wm8960: Move register initialisation to I2C driver probe() We must ensure that the clocking configuration is valid as rapidly as possible. And do software reset before the others registers updates, or the registers will be reset to the default state. Signed-off-by: Zidan Wang Signed-off-by: Mark Brown --- sound/soc/codecs/wm8960.c | 41 ++++++++++++++++++++--------------------- 1 file changed, 20 insertions(+), 21 deletions(-) (limited to 'sound') diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c index bc8793cd..031a1ae 100644 --- a/sound/soc/codecs/wm8960.c +++ b/sound/soc/codecs/wm8960.c @@ -128,7 +128,7 @@ struct wm8960_priv { struct wm8960_data pdata; }; -#define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0) +#define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0) /* enumerated controls */ static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted", @@ -947,31 +947,12 @@ static int wm8960_probe(struct snd_soc_codec *codec) { struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); struct wm8960_data *pdata = &wm8960->pdata; - int ret; if (pdata->capless) wm8960->set_bias_level = wm8960_set_bias_level_capless; else wm8960->set_bias_level = wm8960_set_bias_level_out3; - ret = wm8960_reset(codec); - if (ret < 0) { - dev_err(codec->dev, "Failed to issue reset\n"); - return ret; - } - - /* Latch the update bits */ - snd_soc_update_bits(codec, WM8960_LINVOL, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_RINVOL, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_LADC, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_RADC, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_LDAC, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_RDAC, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_LOUT1, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_ROUT1, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100); - snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100); - snd_soc_add_codec_controls(codec, wm8960_snd_controls, ARRAY_SIZE(wm8960_snd_controls)); wm8960_add_widgets(codec); @@ -1030,7 +1011,13 @@ static int wm8960_i2c_probe(struct i2c_client *i2c, else if (i2c->dev.of_node) wm8960_set_pdata_from_of(i2c, &wm8960->pdata); - if (pdata && pdata->shared_lrclk) { + ret = wm8960_reset(wm8960->regmap); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to issue reset\n"); + return ret; + } + + if (wm8960->pdata.shared_lrclk) { ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 0x4, 0x4); if (ret != 0) { @@ -1040,6 +1027,18 @@ static int wm8960_i2c_probe(struct i2c_client *i2c, } } + /* Latch the update bits */ + regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100); + regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100); + i2c_set_clientdata(i2c, wm8960); ret = snd_soc_register_codec(&i2c->dev, -- cgit v1.1