From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olivier Moysan Subject: [PATCH 2/7] ASoC: cs42l51: add regulator management Date: Wed, 3 Apr 2019 15:23:32 +0200 Message-ID: <1554297817-14154-3-git-send-email-olivier.moysan@st.com> References: <1554297817-14154-1-git-send-email-olivier.moysan@st.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1554297817-14154-1-git-send-email-olivier.moysan@st.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, alsa-devel@alsa-project.org, robh@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-kernel@vger.kernel.org, olivier.moysan@st.com, arnaud.pouliquen@st.com, benjamin.gaignard@st.com, apatard@mandriva.com List-Id: devicetree@vger.kernel.org Add cs42l51 audio codec power supply management through regulator framework. Signed-off-by: Olivier Moysan --- sound/soc/codecs/cs42l51-i2c.c | 6 ++++++ sound/soc/codecs/cs42l51.c | 44 +++++++++++++++++++++++++++++++++++++++++- sound/soc/codecs/cs42l51.h | 1 + 3 files changed, 50 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/cs42l51-i2c.c b/sound/soc/codecs/cs42l51-i2c.c index 4b5731a41876..8333dbf18ea2 100644 --- a/sound/soc/codecs/cs42l51-i2c.c +++ b/sound/soc/codecs/cs42l51-i2c.c @@ -35,12 +35,18 @@ static int cs42l51_i2c_probe(struct i2c_client *i2c, return cs42l51_probe(&i2c->dev, devm_regmap_init_i2c(i2c, &config)); } +static int cs42l51_i2c_remove(struct i2c_client *i2c) +{ + return cs42l51_remove(&i2c->dev); +} + static struct i2c_driver cs42l51_i2c_driver = { .driver = { .name = "cs42l51", .of_match_table = cs42l51_of_match, }, .probe = cs42l51_i2c_probe, + .remove = cs42l51_i2c_remove, .id_table = cs42l51_i2c_id, }; diff --git a/sound/soc/codecs/cs42l51.c b/sound/soc/codecs/cs42l51.c index 80da3cd73e04..f43eb51d2d8d 100644 --- a/sound/soc/codecs/cs42l51.c +++ b/sound/soc/codecs/cs42l51.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "cs42l51.h" @@ -40,11 +41,19 @@ enum master_slave_mode { MODE_MASTER, }; +static const char * const cs42l51_supply_names[] = { + "VL", + "VD", + "VA", + "VAHP", +}; + struct cs42l51_private { unsigned int mclk; struct clk *mclk_handle; unsigned int audio_mode; /* The mode (I2S or left-justified) */ enum master_slave_mode func; + struct regulator_bulk_data supplies[ARRAY_SIZE(cs42l51_supply_names)]; }; #define CS42L51_FORMATS ( \ @@ -550,7 +559,7 @@ int cs42l51_probe(struct device *dev, struct regmap *regmap) { struct cs42l51_private *cs42l51; unsigned int val; - int ret; + int ret, i; if (IS_ERR(regmap)) return PTR_ERR(regmap); @@ -569,6 +578,23 @@ int cs42l51_probe(struct device *dev, struct regmap *regmap) cs42l51->mclk_handle = NULL; } + for (i = 0; i < ARRAY_SIZE(cs42l51->supplies); i++) + cs42l51->supplies[i].supply = cs42l51_supply_names[i]; + + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(cs42l51->supplies), + cs42l51->supplies); + if (ret != 0) { + dev_err(dev, "Failed to request supplies: %d\n", ret); + return ret; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(cs42l51->supplies), + cs42l51->supplies); + if (ret != 0) { + dev_err(dev, "Failed to enable supplies: %d\n", ret); + return ret; + } + /* Verify that we have a CS42L51 */ ret = regmap_read(regmap, CS42L51_CHIP_REV_ID, &val); if (ret < 0) { @@ -587,11 +613,27 @@ int cs42l51_probe(struct device *dev, struct regmap *regmap) ret = devm_snd_soc_register_component(dev, &soc_component_device_cs42l51, &cs42l51_dai, 1); + if (ret < 0) + goto error; + + return 0; + error: + regulator_bulk_disable(ARRAY_SIZE(cs42l51->supplies), + cs42l51->supplies); return ret; } EXPORT_SYMBOL_GPL(cs42l51_probe); +int cs42l51_remove(struct device *dev) +{ + struct cs42l51_private *cs42l51 = dev_get_drvdata(dev); + + return regulator_bulk_disable(ARRAY_SIZE(cs42l51->supplies), + cs42l51->supplies); +} +EXPORT_SYMBOL_GPL(cs42l51_remove); + const struct of_device_id cs42l51_of_match[] = { { .compatible = "cirrus,cs42l51", }, { } diff --git a/sound/soc/codecs/cs42l51.h b/sound/soc/codecs/cs42l51.h index 0ca805492ac4..aef0ede82c7b 100644 --- a/sound/soc/codecs/cs42l51.h +++ b/sound/soc/codecs/cs42l51.h @@ -22,6 +22,7 @@ struct device; extern const struct regmap_config cs42l51_regmap; int cs42l51_probe(struct device *dev, struct regmap *regmap); +int cs42l51_remove(struct device *dev); extern const struct of_device_id cs42l51_of_match[]; #define CS42L51_CHIP_ID 0x1B -- 2.7.4