diff options
Diffstat (limited to 'sound/soc/codecs/sgtl5000.c')
| -rw-r--r-- | sound/soc/codecs/sgtl5000.c | 42 |
1 files changed, 13 insertions, 29 deletions
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index e997d271728d..6bb77d76561b 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -626,6 +626,9 @@ static int sgtl5000_set_clock(struct snd_soc_codec *codec, int frame_rate) } else { dev_err(codec->dev, "PLL not supported in slave mode\n"); + dev_err(codec->dev, "%d ratio is not supported. " + "SYS_MCLK needs to be 256, 384 or 512 * fs\n", + sgtl5000->sysclk / sys_fs); return -EINVAL; } } @@ -1073,26 +1076,6 @@ static bool sgtl5000_readable(struct device *dev, unsigned int reg) } } -#ifdef CONFIG_SUSPEND -static int sgtl5000_suspend(struct snd_soc_codec *codec) -{ - sgtl5000_set_bias_level(codec, SND_SOC_BIAS_OFF); - - return 0; -} - -static int sgtl5000_resume(struct snd_soc_codec *codec) -{ - /* Bring the codec back up to standby to enable regulators */ - sgtl5000_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - return 0; -} -#else -#define sgtl5000_suspend NULL -#define sgtl5000_resume NULL -#endif /* CONFIG_SUSPEND */ - /* * sgtl5000 has 3 internal power supplies: * 1. VAG, normally set to vdda/2 @@ -1352,11 +1335,6 @@ static int sgtl5000_probe(struct snd_soc_codec *codec) */ snd_soc_write(codec, SGTL5000_DAP_CTRL, 0); - /* leading to standby state */ - ret = sgtl5000_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - if (ret) - goto err; - return 0; err: @@ -1373,8 +1351,6 @@ static int sgtl5000_remove(struct snd_soc_codec *codec) { struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); - sgtl5000_set_bias_level(codec, SND_SOC_BIAS_OFF); - regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies), sgtl5000->supplies); regulator_bulk_free(ARRAY_SIZE(sgtl5000->supplies), @@ -1387,9 +1363,8 @@ static int sgtl5000_remove(struct snd_soc_codec *codec) static struct snd_soc_codec_driver sgtl5000_driver = { .probe = sgtl5000_probe, .remove = sgtl5000_remove, - .suspend = sgtl5000_suspend, - .resume = sgtl5000_resume, .set_bias_level = sgtl5000_set_bias_level, + .suspend_bias_off = true, .controls = sgtl5000_snd_controls, .num_controls = ARRAY_SIZE(sgtl5000_snd_controls), .dapm_widgets = sgtl5000_dapm_widgets, @@ -1442,6 +1417,7 @@ static int sgtl5000_i2c_probe(struct i2c_client *client, { struct sgtl5000_priv *sgtl5000; int ret, reg, rev; + unsigned int mclk; sgtl5000 = devm_kzalloc(&client->dev, sizeof(struct sgtl5000_priv), GFP_KERNEL); @@ -1465,6 +1441,14 @@ static int sgtl5000_i2c_probe(struct i2c_client *client, return ret; } + /* SGTL5000 SYS_MCLK should be between 8 and 27 MHz */ + mclk = clk_get_rate(sgtl5000->mclk); + if (mclk < 8000000 || mclk > 27000000) { + dev_err(&client->dev, "Invalid SYS_CLK frequency: %u.%03uMHz\n", + mclk / 1000000, mclk / 1000 % 1000); + return -EINVAL; + } + ret = clk_prepare_enable(sgtl5000->mclk); if (ret) return ret; |