[PATCH 1/2] ASoC: codecs: ES8326: Reducing power consumption
For lower power consumption during hibernation, the configuration of es8326_suspend and es8326_remove will be adjusted. Adding es8326_i2c_shutdown and es8326_i2c_remove to cover different situations
Signed-off-by: Zhang Yi zhangyi@everest-semi.com
sound/soc/codecs/es8326.c | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/es8326.c b/sound/soc/codecs/es8326.c index 15289dadafea..5c89323035a2 100755 --- a/sound/soc/codecs/es8326.c +++ b/sound/soc/codecs/es8326.c @@ -1072,12 +1072,13 @@ static int es8326_suspend(struct snd_soc_component *component) es8326->calibrated = false; regmap_write(es8326->regmap, ES8326_CLK_CTL, ES8326_CLK_OFF); regcache_cache_only(es8326->regmap, true);
- regcache_mark_dirty(es8326->regmap);
/* reset register value to default */ regmap_write(es8326->regmap, ES8326_CSM_I2C_STA, 0x01); usleep_range(1000, 3000); regmap_write(es8326->regmap, ES8326_CSM_I2C_STA, 0x00);
- regcache_mark_dirty(es8326->regmap);
return 0; }
@@ -1163,8 +1164,13 @@ static int es8326_set_jack(struct snd_soc_component *component,
static void es8326_remove(struct snd_soc_component *component) {
- struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
es8326_disable_jack_detect(component); es8326_set_bias_level(component, SND_SOC_BIAS_OFF);
- regmap_write(es8326->regmap, ES8326_CSM_I2C_STA, 0x01);
- usleep_range(1000, 3000);
- regmap_write(es8326->regmap, ES8326_CSM_I2C_STA, 0x00);
}
static const struct snd_soc_component_driver soc_component_dev_es8326 = { @@ -1236,6 +1242,30 @@ static int es8326_i2c_probe(struct i2c_client *i2c) &es8326_dai, 1); }
+static void es8326_i2c_shutdown(struct i2c_client *i2c) +{
- struct snd_soc_component *component;
- struct es8326_priv *es8326;
- dev_dbg(component->dev, "Enter into %s\n", __func__);
Above line works on unset pointer, you need to set component before dereferencing it.
- es8326 = i2c_get_clientdata(i2c);
- component = es8326->component;
- cancel_delayed_work_sync(&es8326->jack_detect_work);
- cancel_delayed_work_sync(&es8326->button_press_work);
- regmap_write(es8326->regmap, ES8326_CSM_I2C_STA, 0x01);
- usleep_range(1000, 3000);
- regmap_write(es8326->regmap, ES8326_CSM_I2C_STA, 0x00);
- return;
+}
+static void es8326_i2c_remove(struct i2c_client *i2c) +{
- es8326_i2c_shutdown(i2c);
+}
static const struct i2c_device_id es8326_i2c_id[] = { {"es8326", 0 }, {} @@ -1265,6 +1295,8 @@ static struct i2c_driver es8326_i2c_driver = { .of_match_table = of_match_ptr(es8326_of_match), }, .probe = es8326_i2c_probe,
- .shutdown = es8326_i2c_shutdown,
- .remove = es8326_i2c_remove,
.id_table = es8326_i2c_id, }; module_i2c_driver(es8326_i2c_driver);
I'm sorry. I'll fix my mistake.
participants (1)
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Zhang Yi