diff options
author | Mark Brown <broonie@kernel.org> | 2021-05-11 11:06:01 +0300 |
---|---|---|
committer | Mark Brown <broonie@kernel.org> | 2021-05-11 11:06:01 +0300 |
commit | b8ded8af30a9d9d8a26ac69ab15f11d9694bc773 (patch) | |
tree | e9fbb4ed94658994897dfa176e929ee604178cfc /sound/soc/codecs | |
parent | 3b8fb1f7702be9dcc50443b5822cb409a31280a3 (diff) | |
parent | 4fc81bc88ad9d6bac90d169382c6045c47d48648 (diff) | |
download | linux-b8ded8af30a9d9d8a26ac69ab15f11d9694bc773.tar.xz |
Merge series "Tidy up device ID reading on legacy Cirrus parts" from Charles Keepax <ckeepax@opensource.cirrus.com>:
Pierre requested I have a look at some cppcheck warnings in the cs42l42
driver, since it is reassigning the ret variable without ever checking
the result. Looking a bit more broadly this happens in quite a few
legacy Cirrus parts, as they all use the same process to read the ID,
factor out a small helper so they can all share the same code. Whilst
in there fix up a couple of other trivial error path issues as well.
Thanks,
Charles
Charles Keepax (10):
ASoC: cirrus: Add helper function for reading the device ID
ASoC: cs35l32: Minor error paths fixups
ASoC: cs35l33: Minor error paths fixups
ASoC: cs35l34: Minor error paths fixups
ASoC: cs35l35: Minor error paths fixups
ASoC: cs35l35: Correct errata handling
ASoC: cs42l42: Minor error paths fixups
ASoC: cs42l73: Minor error paths fixups
ASoC: cs43130: Minor error paths fixups
ASoC: cs53l30: Minor error paths fixups
sound/soc/codecs/cirrus_legacy.h | 21 +++++++++++++++++++++
sound/soc/codecs/cs35l32.c | 34 ++++++++++++++++++----------------
sound/soc/codecs/cs35l33.c | 15 +++++++++------
sound/soc/codecs/cs35l34.c | 39 ++++++++++++++++++++++-----------------
sound/soc/codecs/cs35l35.c | 21 ++++++++++-----------
sound/soc/codecs/cs35l35.h | 1 +
sound/soc/codecs/cs42l42.c | 18 ++++++++----------
sound/soc/codecs/cs42l73.c | 30 +++++++++++++++++-------------
sound/soc/codecs/cs43130.c | 31 +++++++++++++++++++------------
sound/soc/codecs/cs53l30.c | 22 +++++++++++-----------
10 files changed, 136 insertions(+), 96 deletions(-)
create mode 100644 sound/soc/codecs/cirrus_legacy.h
--
2.11.0
Diffstat (limited to 'sound/soc/codecs')
-rw-r--r-- | sound/soc/codecs/cirrus_legacy.h | 21 | ||||
-rw-r--r-- | sound/soc/codecs/cs35l32.c | 34 | ||||
-rw-r--r-- | sound/soc/codecs/cs35l33.c | 15 | ||||
-rw-r--r-- | sound/soc/codecs/cs35l34.c | 39 | ||||
-rw-r--r-- | sound/soc/codecs/cs35l35.c | 21 | ||||
-rw-r--r-- | sound/soc/codecs/cs35l35.h | 1 | ||||
-rw-r--r-- | sound/soc/codecs/cs42l42.c | 18 | ||||
-rw-r--r-- | sound/soc/codecs/cs42l73.c | 30 | ||||
-rw-r--r-- | sound/soc/codecs/cs43130.c | 31 | ||||
-rw-r--r-- | sound/soc/codecs/cs53l30.c | 22 |
10 files changed, 136 insertions, 96 deletions
diff --git a/sound/soc/codecs/cirrus_legacy.h b/sound/soc/codecs/cirrus_legacy.h new file mode 100644 index 000000000000..87c6fd79290d --- /dev/null +++ b/sound/soc/codecs/cirrus_legacy.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Some small helpers for older Cirrus Logic parts. + * + * Copyright (C) 2021 Cirrus Logic, Inc. and + * Cirrus Logic International Semiconductor Ltd. + */ + +static inline int cirrus_read_device_id(struct regmap *regmap, unsigned int reg) +{ + u8 devid[3]; + int ret; + + ret = regmap_bulk_read(regmap, reg, devid, ARRAY_SIZE(devid)); + if (ret < 0) + return ret; + + return ((devid[0] & 0xFF) << 12) | + ((devid[1] & 0xFF) << 4) | + ((devid[2] & 0xF0) >> 4); +} diff --git a/sound/soc/codecs/cs35l32.c b/sound/soc/codecs/cs35l32.c index f4067230ac42..7e1047362a90 100644 --- a/sound/soc/codecs/cs35l32.c +++ b/sound/soc/codecs/cs35l32.c @@ -30,6 +30,7 @@ #include <dt-bindings/sound/cs35l32.h> #include "cs35l32.h" +#include "cirrus_legacy.h" #define CS35L32_NUM_SUPPLIES 2 static const char *const cs35l32_supply_names[CS35L32_NUM_SUPPLIES] = { @@ -348,8 +349,7 @@ static int cs35l32_i2c_probe(struct i2c_client *i2c_client, struct cs35l32_private *cs35l32; struct cs35l32_platform_data *pdata = dev_get_platdata(&i2c_client->dev); - int ret, i; - unsigned int devid = 0; + int ret, i, devid; unsigned int reg; cs35l32 = devm_kzalloc(&i2c_client->dev, sizeof(*cs35l32), GFP_KERNEL); @@ -404,40 +404,40 @@ static int cs35l32_i2c_probe(struct i2c_client *i2c_client, /* Reset the Device */ cs35l32->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(cs35l32->reset_gpio)) - return PTR_ERR(cs35l32->reset_gpio); + if (IS_ERR(cs35l32->reset_gpio)) { + ret = PTR_ERR(cs35l32->reset_gpio); + goto err_supplies; + } gpiod_set_value_cansleep(cs35l32->reset_gpio, 1); /* initialize codec */ - ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_AB, ®); - devid = (reg & 0xFF) << 12; - - ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_CD, ®); - devid |= (reg & 0xFF) << 4; - - ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_E, ®); - devid |= (reg & 0xF0) >> 4; + devid = cirrus_read_device_id(cs35l32->regmap, CS35L32_DEVID_AB); + if (devid < 0) { + ret = devid; + dev_err(&i2c_client->dev, "Failed to read device ID: %d\n", ret); + goto err_disable; + } if (devid != CS35L32_CHIP_ID) { ret = -ENODEV; dev_err(&i2c_client->dev, "CS35L32 Device ID (%X). Expected %X\n", devid, CS35L32_CHIP_ID); - return ret; + goto err_disable; } ret = regmap_read(cs35l32->regmap, CS35L32_REV_ID, ®); if (ret < 0) { dev_err(&i2c_client->dev, "Get Revision ID failed\n"); - return ret; + goto err_disable; } ret = regmap_register_patch(cs35l32->regmap, cs35l32_monitor_patch, ARRAY_SIZE(cs35l32_monitor_patch)); if (ret < 0) { dev_err(&i2c_client->dev, "Failed to apply errata patch\n"); - return ret; + goto err_disable; } dev_info(&i2c_client->dev, @@ -478,7 +478,7 @@ static int cs35l32_i2c_probe(struct i2c_client *i2c_client, CS35L32_PDN_AMP); /* Clear MCLK Error Bit since we don't have the clock yet */ - ret = regmap_read(cs35l32->regmap, CS35L32_INT_STATUS_1, ®); + regmap_read(cs35l32->regmap, CS35L32_INT_STATUS_1, ®); ret = devm_snd_soc_register_component(&i2c_client->dev, &soc_component_dev_cs35l32, cs35l32_dai, @@ -489,6 +489,8 @@ static int cs35l32_i2c_probe(struct i2c_client *i2c_client, return 0; err_disable: + gpiod_set_value_cansleep(cs35l32->reset_gpio, 0); +err_supplies: regulator_bulk_disable(ARRAY_SIZE(cs35l32->supplies), cs35l32->supplies); return ret; diff --git a/sound/soc/codecs/cs35l33.c b/sound/soc/codecs/cs35l33.c index 7ad7b733af9b..6f6b3c0c88b7 100644 --- a/sound/soc/codecs/cs35l33.c +++ b/sound/soc/codecs/cs35l33.c @@ -34,6 +34,7 @@ #include <linux/of_irq.h> #include "cs35l33.h" +#include "cirrus_legacy.h" #define CS35L33_BOOT_DELAY 50 @@ -1190,12 +1191,12 @@ static int cs35l33_i2c_probe(struct i2c_client *i2c_client, regcache_cache_only(cs35l33->regmap, false); /* initialize codec */ - ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_AB, ®); - devid = (reg & 0xFF) << 12; - ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_CD, ®); - devid |= (reg & 0xFF) << 4; - ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_E, ®); - devid |= (reg & 0xF0) >> 4; + devid = cirrus_read_device_id(cs35l33->regmap, CS35L33_DEVID_AB); + if (devid < 0) { + ret = devid; + dev_err(&i2c_client->dev, "Failed to read device ID: %d\n", ret); + goto err_enable; + } if (devid != CS35L33_CHIP_ID) { dev_err(&i2c_client->dev, @@ -1242,6 +1243,8 @@ static int cs35l33_i2c_probe(struct i2c_client *i2c_client, return 0; err_enable: + gpiod_set_value_cansleep(cs35l33->reset_gpio, 0); + regulator_bulk_disable(cs35l33->num_core_supplies, cs35l33->core_supplies); diff --git a/sound/soc/codecs/cs35l34.c b/sound/soc/codecs/cs35l34.c index 110ee2d06358..6657cc5db3e8 100644 --- a/sound/soc/codecs/cs35l34.c +++ b/sound/soc/codecs/cs35l34.c @@ -34,6 +34,7 @@ #include <sound/cs35l34.h> #include "cs35l34.h" +#include "cirrus_legacy.h" #define PDN_DONE_ATTEMPTS 10 #define CS35L34_START_DELAY 50 @@ -996,9 +997,8 @@ static int cs35l34_i2c_probe(struct i2c_client *i2c_client, struct cs35l34_private *cs35l34; struct cs35l34_platform_data *pdata = dev_get_platdata(&i2c_client->dev); - int i; + int i, devid; int ret; - unsigned int devid = 0; unsigned int reg; cs35l34 = devm_kzalloc(&i2c_client->dev, sizeof(*cs35l34), GFP_KERNEL); @@ -1039,13 +1039,15 @@ static int cs35l34_i2c_probe(struct i2c_client *i2c_client, } else { pdata = devm_kzalloc(&i2c_client->dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) - return -ENOMEM; + if (!pdata) { + ret = -ENOMEM; + goto err_regulator; + } if (i2c_client->dev.of_node) { ret = cs35l34_handle_of_data(i2c_client, pdata); if (ret != 0) - return ret; + goto err_regulator; } cs35l34->pdata = *pdata; @@ -1059,33 +1061,34 @@ static int cs35l34_i2c_probe(struct i2c_client *i2c_client, cs35l34->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, "reset-gpios", GPIOD_OUT_LOW); - if (IS_ERR(cs35l34->reset_gpio)) - return PTR_ERR(cs35l34->reset_gpio); + if (IS_ERR(cs35l34->reset_gpio)) { + ret = PTR_ERR(cs35l34->reset_gpio); + goto err_regulator; + } gpiod_set_value_cansleep(cs35l34->reset_gpio, 1); msleep(CS35L34_START_DELAY); - ret = regmap_read(cs35l34->regmap, CS35L34_DEVID_AB, ®); - - devid = (reg & 0xFF) << 12; - ret = regmap_read(cs35l34->regmap, CS35L34_DEVID_CD, ®); - devid |= (reg & 0xFF) << 4; - ret = regmap_read(cs35l34->regmap, CS35L34_DEVID_E, ®); - devid |= (reg & 0xF0) >> 4; + devid = cirrus_read_device_id(cs35l34->regmap, CS35L34_DEVID_AB); + if (devid < 0) { + ret = devid; + dev_err(&i2c_client->dev, "Failed to read device ID: %d\n", ret); + goto err_reset; + } if (devid != CS35L34_CHIP_ID) { dev_err(&i2c_client->dev, "CS35l34 Device ID (%X). Expected ID %X\n", devid, CS35L34_CHIP_ID); ret = -ENODEV; - goto err_regulator; + goto err_reset; } ret = regmap_read(cs35l34->regmap, CS35L34_REV_ID, ®); if (ret < 0) { dev_err(&i2c_client->dev, "Get Revision ID failed\n"); - goto err_regulator; + goto err_reset; } dev_info(&i2c_client->dev, @@ -1110,11 +1113,13 @@ static int cs35l34_i2c_probe(struct i2c_client *i2c_client, if (ret < 0) { dev_err(&i2c_client->dev, "%s: Register component failed\n", __func__); - goto err_regulator; + goto err_reset; } return 0; +err_reset: + gpiod_set_value_cansleep(cs35l34->reset_gpio, 0); err_regulator: regulator_bulk_disable(cs35l34->num_core_supplies, cs35l34->core_supplies); diff --git a/sound/soc/codecs/cs35l35.c b/sound/soc/codecs/cs35l35.c index f20ed838b958..a4309312e84f 100644 --- a/sound/soc/codecs/cs35l35.c +++ b/sound/soc/codecs/cs35l35.c @@ -33,6 +33,7 @@ #include <linux/completion.h> #include "cs35l35.h" +#include "cirrus_legacy.h" /* * Some fields take zero as a valid value so use a high bit flag that won't @@ -495,10 +496,10 @@ static int cs35l35_hw_params(struct snd_pcm_substream *substream, * the Class H algorithm does not enable weak-drive operation for * nonzero values of CH_WKFET_DELAY if SP_RATE = 01 or 10 */ - errata_chk = clk_ctl & CS35L35_SP_RATE_MASK; + errata_chk = (clk_ctl & CS35L35_SP_RATE_MASK) >> CS35L35_SP_RATE_SHIFT; if (classh->classh_wk_fet_disable == 0x00 && - (errata_chk == 0x01 || errata_chk == 0x03)) { + (errata_chk == 0x01 || errata_chk == 0x02)) { ret = regmap_update_bits(cs35l35->regmap, CS35L35_CLASS_H_FET_DRIVE_CTL, CS35L35_CH_WKFET_DEL_MASK, @@ -1471,9 +1472,8 @@ static int cs35l35_i2c_probe(struct i2c_client *i2c_client, struct cs35l35_private *cs35l35; struct device *dev = &i2c_client->dev; struct cs35l35_platform_data *pdata = dev_get_platdata(dev); - int i; + int i, devid; int ret; - unsigned int devid = 0; unsigned int reg; cs35l35 = devm_kzalloc(dev, sizeof(struct cs35l35_private), GFP_KERNEL); @@ -1552,13 +1552,12 @@ static int cs35l35_i2c_probe(struct i2c_client *i2c_client, goto err; } /* initialize codec */ - ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_AB, ®); - - devid = (reg & 0xFF) << 12; - ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_CD, ®); - devid |= (reg & 0xFF) << 4; - ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_E, ®); - devid |= (reg & 0xF0) >> 4; + devid = cirrus_read_device_id(cs35l35->regmap, CS35L35_DEVID_AB); + if (devid < 0) { + ret = devid; + dev_err(dev, "Failed to read device ID: %d\n", ret); + goto err; + } if (devid != CS35L35_CHIP_ID) { dev_err(dev, "CS35L35 Device ID (%X). Expected ID %X\n", diff --git a/sound/soc/codecs/cs35l35.h b/sound/soc/codecs/cs35l35.h index ffb154cd962c..2117dcb08c46 100644 --- a/sound/soc/codecs/cs35l35.h +++ b/sound/soc/codecs/cs35l35.h @@ -168,6 +168,7 @@ #define CS35L35_SP_SCLKS_48FS 0x0B #define CS35L35_SP_SCLKS_64FS 0x0F #define CS35L35_SP_RATE_MASK 0xC0 +#define CS35L35_SP_RATE_SHIFT 6 #define CS35L35_PDN_BST_MASK 0x06 #define CS35L35_PDN_BST_FETON_SHIFT 1 diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index d9f8da7a68d0..d7fb6b38fd7c 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -36,6 +36,7 @@ #include <dt-bindings/sound/cs42l42.h> #include "cs42l42.h" +#include "cirrus_legacy.h" static const struct reg_default cs42l42_reg_defaults[] = { { CS42L42_FRZ_CTL, 0x00 }, @@ -1814,8 +1815,7 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client, const struct i2c_device_id *id) { struct cs42l42_private *cs42l42; - int ret, i; - unsigned int devid = 0; + int ret, i, devid; unsigned int reg; cs42l42 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l42_private), @@ -1878,14 +1878,12 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client, "Failed to request IRQ: %d\n", ret); /* initialize codec */ - ret = regmap_read(cs42l42->regmap, CS42L42_DEVID_AB, ®); - devid = (reg & 0xFF) << 12; - - ret = regmap_read(cs42l42->regmap, CS42L42_DEVID_CD, ®); - devid |= (reg & 0xFF) << 4; - - ret = regmap_read(cs42l42->regmap, CS42L42_DEVID_E, ®); - devid |= (reg & 0xF0) >> 4; + devid = cirrus_read_device_id(cs42l42->regmap, CS42L42_DEVID_AB); + if (devid < 0) { + ret = devid; + dev_err(&i2c_client->dev, "Failed to read device ID: %d\n", ret); + goto err_disable; + } if (devid != CS42L42_CHIP_ID) { ret = -ENODEV; diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c index c3f974ec78e5..da5d77a5f55b 100644 --- a/sound/soc/codecs/cs42l73.c +++ b/sound/soc/codecs/cs42l73.c @@ -27,6 +27,7 @@ #include <sound/tlv.h> #include <sound/cs42l73.h> #include "cs42l73.h" +#include "cirrus_legacy.h" struct sp_config { u8 spc, mmcc, spfs; @@ -1275,8 +1276,7 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client, { struct cs42l73_private *cs42l73; struct cs42l73_platform_data *pdata = dev_get_platdata(&i2c_client->dev); - int ret; - unsigned int devid = 0; + int ret, devid; unsigned int reg; u32 val32; @@ -1326,27 +1326,25 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client, } /* initialize codec */ - ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_AB, ®); - devid = (reg & 0xFF) << 12; - - ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_CD, ®); - devid |= (reg & 0xFF) << 4; - - ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_E, ®); - devid |= (reg & 0xF0) >> 4; + devid = cirrus_read_device_id(cs42l73->regmap, CS42L73_DEVID_AB); + if (devid < 0) { + ret = devid; + dev_err(&i2c_client->dev, "Failed to read device ID: %d\n", ret); + goto err_reset; + } if (devid != CS42L73_DEVID) { ret = -ENODEV; dev_err(&i2c_client->dev, "CS42L73 Device ID (%X). Expected %X\n", devid, CS42L73_DEVID); - return ret; + goto err_reset; } ret = regmap_read(cs42l73->regmap, CS42L73_REVID, ®); if (ret < 0) { dev_err(&i2c_client->dev, "Get Revision ID failed\n"); - return ret; + goto err_reset; } dev_info(&i2c_client->dev, @@ -1356,8 +1354,14 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client, &soc_component_dev_cs42l73, cs42l73_dai, ARRAY_SIZE(cs42l73_dai)); if (ret < 0) - return ret; + goto err_reset; + return 0; + +err_reset: + gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 0); + + return ret; } static const struct of_device_id cs42l73_of_match[] = { diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c index 80bc7c10ed75..642338cdc8b6 100644 --- a/sound/soc/codecs/cs43130.c +++ b/sound/soc/codecs/cs43130.c @@ -36,6 +36,7 @@ #include <sound/jack.h> #include "cs43130.h" +#include "cirrus_legacy.h" static const struct reg_default cs43130_reg_defaults[] = { {CS43130_SYS_CLK_CTL_1, 0x06}, @@ -2424,9 +2425,8 @@ static int cs43130_i2c_probe(struct i2c_client *client, { struct cs43130_private *cs43130; int ret; - unsigned int devid = 0; unsigned int reg; - int i; + int i, devid; cs43130 = devm_kzalloc(&client->dev, sizeof(*cs43130), GFP_KERNEL); if (!cs43130) @@ -2464,20 +2464,21 @@ static int cs43130_i2c_probe(struct i2c_client *client, cs43130->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(cs43130->reset_gpio)) - return PTR_ERR(cs43130->reset_gpio); + if (IS_ERR(cs43130->reset_gpio)) { + ret = PTR_ERR(cs43130->reset_gpio); + goto err_supplies; + } gpiod_set_value_cansleep(cs43130->reset_gpio, 1); usleep_range(2000, 2050); - ret = regmap_read(cs43130->regmap, CS43130_DEVID_AB, ®); - - devid = (reg & 0xFF) << 12; - ret = regmap_read(cs43130->regmap, CS43130_DEVID_CD, ®); - devid |= (reg & 0xFF) << 4; - ret = regmap_read(cs43130->regmap, CS43130_DEVID_E, ®); - devid |= (reg & 0xF0) >> 4; + devid = cirrus_read_device_id(cs43130->regmap, CS43130_DEVID_AB); + if (devid < 0) { + ret = devid; + dev_err(&client->dev, "Failed to read device ID: %d\n", ret); + goto err; + } switch (devid) { case CS43130_CHIP_ID: @@ -2517,7 +2518,7 @@ static int cs43130_i2c_probe(struct i2c_client *client, "cs43130", cs43130); if (ret != 0) { dev_err(&client->dev, "Failed to request IRQ: %d\n", ret); - return ret; + goto err; } cs43130->mclk_int_src = CS43130_MCLK_SRC_RCO; @@ -2576,7 +2577,13 @@ static int cs43130_i2c_probe(struct i2c_client *client, CS43130_XSP_3ST_MASK, 0); return 0; + err: + gpiod_set_value_cansleep(cs43130->reset_gpio, 0); +err_supplies: + regulator_bulk_disable(ARRAY_SIZE(cs43130->supplies), + cs43130->supplies); + return ret; } diff --git a/sound/soc/codecs/cs53l30.c b/sound/soc/codecs/cs53l30.c index 3d67cbf9eaaa..bd33dd048c7c 100644 --- a/sound/soc/codecs/cs53l30.c +++ b/sound/soc/codecs/cs53l30.c @@ -20,6 +20,7 @@ #include <sound/tlv.h> #include "cs53l30.h" +#include "cirrus_legacy.h" #define CS53L30_NUM_SUPPLIES 2 static const char *const cs53l30_supply_names[CS53L30_NUM_SUPPLIES] = { @@ -920,9 +921,8 @@ static int cs53l30_i2c_probe(struct i2c_client *client, const struct device_node *np = client->dev.of_node; struct device *dev = &client->dev; struct cs53l30_private *cs53l30; - unsigned int devid = 0; unsigned int reg; - int ret = 0, i; + int ret = 0, i, devid; u8 val; cs53l30 = devm_kzalloc(dev, sizeof(*cs53l30), GFP_KERNEL); @@ -951,7 +951,7 @@ static int cs53l30_i2c_probe(struct i2c_client *client, GPIOD_OUT_LOW); if (IS_ERR(cs53l30->reset_gpio)) { ret = PTR_ERR(cs53l30->reset_gpio); - goto error; + goto error_supplies; } gpiod_set_value_cansleep(cs53l30->reset_gpio, 1); @@ -968,14 +968,12 @@ static int cs53l30_i2c_probe(struct i2c_client *client, } /* Initialize codec */ - ret = regmap_read(cs53l30->regmap, CS53L30_DEVID_AB, ®); - devid = reg << 12; - - ret = regmap_read(cs53l30->regmap, CS53L30_DEVID_CD, ®); - devid |= reg << 4; - - ret = regmap_read(cs53l30->regmap, CS53L30_DEVID_E, ®); - devid |= (reg & 0xF0) >> 4; + devid = cirrus_read_device_id(cs53l30->regmap, CS53L30_DEVID_AB); + if (devid < 0) { + ret = devid; + dev_err(dev, "Failed to read device ID: %d\n", ret); + goto error; + } if (devid != CS53L30_DEVID) { ret = -ENODEV; @@ -1037,6 +1035,8 @@ static int cs53l30_i2c_probe(struct i2c_client *client, return 0; error: + gpiod_set_value_cansleep(cs53l30->reset_gpio, 0); +error_supplies: regulator_bulk_disable(ARRAY_SIZE(cs53l30->supplies), cs53l30->supplies); return ret; |