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ASoC: tlv320adcx140: Wake up codec before accessing register

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According to its datasheet, after reset this codec goes into sleep
mode. In this mode, any register accessing should be avoided except for
exiting sleep mode. Hence this commit moves SLEEP_CFG access before any
register accessing.

Signed-off-by: Camel Guo <camelg@axis.com>
Acked-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200908083521.14105-2-camel.guo@axis.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Camel Guo 2020-09-08 10:35:21 +02:00 committed by Mark Brown
parent 20244b2a8a
commit 1a5ce48fd6
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 12 additions and 12 deletions
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24
sound/soc/codecs/tlv320adcx140.c
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@ -842,6 +842,18 @@ static int adcx140_codec_probe(struct snd_soc_component *component)
if (ret)
goto out;
if (adcx140->supply_areg == NULL)
sleep_cfg_val |= ADCX140_AREG_INTERNAL;
ret = regmap_write(adcx140->regmap, ADCX140_SLEEP_CFG, sleep_cfg_val);
if (ret) {
dev_err(adcx140->dev, "setting sleep config failed %d\n", ret);
goto out;
}
/* 8.4.3: Wait >= 1ms after entering active mode. */
usleep_range(1000, 100000);
pdm_count = device_property_count_u32(adcx140->dev,
"ti,pdm-edge-select");
if (pdm_count <= ADCX140_NUM_PDM_EDGES && pdm_count > 0) {
@ -889,18 +901,6 @@ static int adcx140_codec_probe(struct snd_soc_component *component)
if (ret)
goto out;
if (adcx140->supply_areg == NULL)
sleep_cfg_val |= ADCX140_AREG_INTERNAL;
ret = regmap_write(adcx140->regmap, ADCX140_SLEEP_CFG, sleep_cfg_val);
if (ret) {
dev_err(adcx140->dev, "setting sleep config failed %d\n", ret);
goto out;
}
/* 8.4.3: Wait >= 1ms after entering active mode. */
usleep_range(1000, 100000);
ret = regmap_update_bits(adcx140->regmap, ADCX140_BIAS_CFG,
ADCX140_MIC_BIAS_VAL_MSK |
ADCX140_MIC_BIAS_VREF_MSK, bias_cfg);