diff options
| author | Eric Nelson <eric@nelint.com> | 2016-06-07 01:14:51 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-06-15 14:09:26 +0100 |
| commit | 08dea16e0960ea5caf7876045b747145cb677096 (patch) | |
| tree | fe82f1e933151b82d45e1378e7055af6a5d38c0c /sound | |
| parent | 3d632cc87204b51a4b32bdaa970fe6b8d879347e (diff) | |
| download | blackbird-op-linux-08dea16e0960ea5caf7876045b747145cb677096.tar.gz blackbird-op-linux-08dea16e0960ea5caf7876045b747145cb677096.zip | |
ASoC: sgtl5000: Disable internal PLL early
To handle the soft reboot case, the internal PLL must be
disabled in SGTL5000_CHIP_CLK_CTRL before clearing bits
SGTL5000_VCOAMP_POWERUP and SGTL5000_PLL_POWERUP in
register SGTL5000_CHIP_ANA_POWER.
Signed-off-by: Eric Nelson <eric@nelint.com>
Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/sgtl5000.c | 9 | ||||
| -rw-r--r-- | sound/soc/codecs/sgtl5000.h | 1 |
2 files changed, 9 insertions, 1 deletions
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index 42f2eb62664e..0916bb46ccf2 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -38,7 +38,6 @@ /* default value of sgtl5000 registers */ static const struct reg_default sgtl5000_reg_defaults[] = { { SGTL5000_CHIP_DIG_POWER, 0x0000 }, - { SGTL5000_CHIP_CLK_CTRL, 0x0008 }, { SGTL5000_CHIP_I2S_CTRL, 0x0010 }, { SGTL5000_CHIP_SSS_CTRL, 0x0010 }, { SGTL5000_CHIP_ADCDAC_CTRL, 0x020c }, @@ -1279,6 +1278,14 @@ static int sgtl5000_i2c_probe(struct i2c_client *client, dev_info(&client->dev, "sgtl5000 revision 0x%x\n", rev); sgtl5000->revision = rev; + /* reconfigure the clocks in case we're using the PLL */ + ret = regmap_write(sgtl5000->regmap, + SGTL5000_CHIP_CLK_CTRL, + SGTL5000_CHIP_CLK_CTRL_DEFAULT); + if (ret) + dev_err(&client->dev, + "Error %d initializing CHIP_CLK_CTRL\n", ret); + /* Follow section 2.2.1.1 of AN3663 */ ana_pwr = SGTL5000_ANA_POWER_DEFAULT; if (sgtl5000->num_supplies <= VDDD) { diff --git a/sound/soc/codecs/sgtl5000.h b/sound/soc/codecs/sgtl5000.h index 1be82379c689..22f3442af982 100644 --- a/sound/soc/codecs/sgtl5000.h +++ b/sound/soc/codecs/sgtl5000.h @@ -92,6 +92,7 @@ /* * SGTL5000_CHIP_CLK_CTRL */ +#define SGTL5000_CHIP_CLK_CTRL_DEFAULT 0x0008 #define SGTL5000_RATE_MODE_MASK 0x0030 #define SGTL5000_RATE_MODE_SHIFT 4 #define SGTL5000_RATE_MODE_WIDTH 2 |
