From c60279912ef005fe3ebaf2c139c19a14ccb42b5e Mon Sep 17 00:00:00 2001 From: Hongyang Zhao Date: Wed, 12 Aug 2026 17:35:44 +0800 Subject: ASoC: codecs: es8316: Add regulator support ES8316 has separate AVDD, CPVDD, DVDD and PVDD supply inputs. Request and enable the supplies during I2C probe, before initializing the regmap. Keep them enabled for the lifetime of the I2C device so the regmap cannot access an unpowered device and its cache remains synchronized if the ASoC component is unbound and rebound. Signed-off-by: Hongyang Zhao Link: https://patch.msgid.link/20260812-es8316-regulator-next-20260722-v2-2-e7078bc9bc9c@thundersoft.com Signed-off-by: Mark Brown --- sound/soc/codecs/es8316.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/sound/soc/codecs/es8316.c b/sound/soc/codecs/es8316.c index 3abe77423f29..983fa0bca419 100644 --- a/sound/soc/codecs/es8316.c +++ b/sound/soc/codecs/es8316.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -30,6 +31,13 @@ static const unsigned int supported_mclk_lrck_ratios[] = { 256, 384, 400, 500, 512, 768, 1024 }; +static const char * const es8316_supply_names[] = { + "avdd", + "cpvdd", + "dvdd", + "pvdd", +}; + struct es8316_priv { struct mutex lock; struct clk *mclk; @@ -871,6 +879,11 @@ static int es8316_i2c_probe(struct i2c_client *i2c_client) i2c_set_clientdata(i2c_client, es8316); + ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(es8316_supply_names), + es8316_supply_names); + if (ret) + return dev_err_probe(dev, ret, "unable to enable supplies\n"); + es8316->regmap = devm_regmap_init_i2c(i2c_client, &es8316_regmap); if (IS_ERR(es8316->regmap)) return PTR_ERR(es8316->regmap); -- cgit v1.2.3