diff options
Diffstat (limited to 'drivers/iio/accel/mma9551_core.c')
| -rw-r--r-- | drivers/iio/accel/mma9551_core.c | 65 |
1 files changed, 29 insertions, 36 deletions
diff --git a/drivers/iio/accel/mma9551_core.c b/drivers/iio/accel/mma9551_core.c index c34c5ce8123b..2ccb1fb19b96 100644 --- a/drivers/iio/accel/mma9551_core.c +++ b/drivers/iio/accel/mma9551_core.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Common code for Freescale MMA955x Intelligent Sensor Platform drivers * Copyright (c) 2014, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> @@ -227,7 +219,7 @@ int mma9551_read_config_byte(struct i2c_client *client, u8 app_id, return mma9551_transfer(client, app_id, MMA9551_CMD_READ_CONFIG, reg, NULL, 0, val, 1); } -EXPORT_SYMBOL(mma9551_read_config_byte); +EXPORT_SYMBOL_NS(mma9551_read_config_byte, "IIO_MMA9551"); /** * mma9551_write_config_byte() - write 1 configuration byte @@ -252,7 +244,7 @@ int mma9551_write_config_byte(struct i2c_client *client, u8 app_id, return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG, reg, &val, 1, NULL, 0); } -EXPORT_SYMBOL(mma9551_write_config_byte); +EXPORT_SYMBOL_NS(mma9551_write_config_byte, "IIO_MMA9551"); /** * mma9551_read_status_byte() - read 1 status byte @@ -277,7 +269,7 @@ int mma9551_read_status_byte(struct i2c_client *client, u8 app_id, return mma9551_transfer(client, app_id, MMA9551_CMD_READ_STATUS, reg, NULL, 0, val, 1); } -EXPORT_SYMBOL(mma9551_read_status_byte); +EXPORT_SYMBOL_NS(mma9551_read_status_byte, "IIO_MMA9551"); /** * mma9551_read_config_word() - read 1 config word @@ -304,11 +296,14 @@ int mma9551_read_config_word(struct i2c_client *client, u8 app_id, ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_CONFIG, reg, NULL, 0, (u8 *)&v, 2); + if (ret < 0) + return ret; + *val = be16_to_cpu(v); - return ret; + return 0; } -EXPORT_SYMBOL(mma9551_read_config_word); +EXPORT_SYMBOL_NS(mma9551_read_config_word, "IIO_MMA9551"); /** * mma9551_write_config_word() - write 1 config word @@ -335,7 +330,7 @@ int mma9551_write_config_word(struct i2c_client *client, u8 app_id, return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG, reg, (u8 *)&v, 2, NULL, 0); } -EXPORT_SYMBOL(mma9551_write_config_word); +EXPORT_SYMBOL_NS(mma9551_write_config_word, "IIO_MMA9551"); /** * mma9551_read_status_word() - read 1 status word @@ -362,11 +357,14 @@ int mma9551_read_status_word(struct i2c_client *client, u8 app_id, ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_STATUS, reg, NULL, 0, (u8 *)&v, 2); + if (ret < 0) + return ret; + *val = be16_to_cpu(v); - return ret; + return 0; } -EXPORT_SYMBOL(mma9551_read_status_word); +EXPORT_SYMBOL_NS(mma9551_read_status_word, "IIO_MMA9551"); /** * mma9551_read_config_words() - read multiple config words @@ -405,7 +403,7 @@ int mma9551_read_config_words(struct i2c_client *client, u8 app_id, return 0; } -EXPORT_SYMBOL(mma9551_read_config_words); +EXPORT_SYMBOL_NS(mma9551_read_config_words, "IIO_MMA9551"); /** * mma9551_read_status_words() - read multiple status words @@ -444,7 +442,7 @@ int mma9551_read_status_words(struct i2c_client *client, u8 app_id, return 0; } -EXPORT_SYMBOL(mma9551_read_status_words); +EXPORT_SYMBOL_NS(mma9551_read_status_words, "IIO_MMA9551"); /** * mma9551_write_config_words() - write multiple config words @@ -479,7 +477,7 @@ int mma9551_write_config_words(struct i2c_client *client, u8 app_id, return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG, reg, (u8 *)be_buf, len * sizeof(u16), NULL, 0); } -EXPORT_SYMBOL(mma9551_write_config_words); +EXPORT_SYMBOL_NS(mma9551_write_config_words, "IIO_MMA9551"); /** * mma9551_update_config_bits() - update bits in register @@ -515,7 +513,7 @@ int mma9551_update_config_bits(struct i2c_client *client, u8 app_id, return mma9551_write_config_byte(client, app_id, reg, tmp); } -EXPORT_SYMBOL(mma9551_update_config_bits); +EXPORT_SYMBOL_NS(mma9551_update_config_bits, "IIO_MMA9551"); /** * mma9551_gpio_config() - configure gpio @@ -594,7 +592,7 @@ int mma9551_gpio_config(struct i2c_client *client, enum mma9551_gpio_pin pin, return ret; } -EXPORT_SYMBOL(mma9551_gpio_config); +EXPORT_SYMBOL_NS(mma9551_gpio_config, "IIO_MMA9551"); /** * mma9551_read_version() - read device version information @@ -624,7 +622,7 @@ int mma9551_read_version(struct i2c_client *client) return 0; } -EXPORT_SYMBOL(mma9551_read_version); +EXPORT_SYMBOL_NS(mma9551_read_version, "IIO_MMA9551"); /** * mma9551_set_device_state() - sets HW power mode @@ -654,7 +652,7 @@ int mma9551_set_device_state(struct i2c_client *client, bool enable) MMA9551_SLEEP_CFG_FLEEN : MMA9551_SLEEP_CFG_SNCEN); } -EXPORT_SYMBOL(mma9551_set_device_state); +EXPORT_SYMBOL_NS(mma9551_set_device_state, "IIO_MMA9551"); /** * mma9551_set_power_state() - sets runtime PM state @@ -672,17 +670,12 @@ int mma9551_set_power_state(struct i2c_client *client, bool on) int ret; if (on) - ret = pm_runtime_get_sync(&client->dev); - else { - pm_runtime_mark_last_busy(&client->dev); + ret = pm_runtime_resume_and_get(&client->dev); + else ret = pm_runtime_put_autosuspend(&client->dev); - } - if (ret < 0) { dev_err(&client->dev, "failed to change power state to %d\n", on); - if (on) - pm_runtime_put_noidle(&client->dev); return ret; } @@ -690,7 +683,7 @@ int mma9551_set_power_state(struct i2c_client *client, bool on) return 0; } -EXPORT_SYMBOL(mma9551_set_power_state); +EXPORT_SYMBOL_NS(mma9551_set_power_state, "IIO_MMA9551"); /** * mma9551_sleep() - sleep @@ -709,7 +702,7 @@ void mma9551_sleep(int freq) else msleep_interruptible(sleep_val); } -EXPORT_SYMBOL(mma9551_sleep); +EXPORT_SYMBOL_NS(mma9551_sleep, "IIO_MMA9551"); /** * mma9551_read_accel_chan() - read accelerometer channel @@ -765,7 +758,7 @@ out_poweroff: mma9551_set_power_state(client, false); return ret; } -EXPORT_SYMBOL(mma9551_read_accel_chan); +EXPORT_SYMBOL_NS(mma9551_read_accel_chan, "IIO_MMA9551"); /** * mma9551_read_accel_scale() - read accelerometer scale @@ -783,7 +776,7 @@ int mma9551_read_accel_scale(int *val, int *val2) return IIO_VAL_INT_PLUS_MICRO; } -EXPORT_SYMBOL(mma9551_read_accel_scale); +EXPORT_SYMBOL_NS(mma9551_read_accel_scale, "IIO_MMA9551"); /** * mma9551_app_reset() - reset application @@ -802,7 +795,7 @@ int mma9551_app_reset(struct i2c_client *client, u32 app_mask) MMA9551_RSC_OFFSET(app_mask), MMA9551_RSC_VAL(app_mask)); } -EXPORT_SYMBOL(mma9551_app_reset); +EXPORT_SYMBOL_NS(mma9551_app_reset, "IIO_MMA9551"); MODULE_AUTHOR("Irina Tirdea <irina.tirdea@intel.com>"); MODULE_AUTHOR("Vlad Dogaru <vlad.dogaru@intel.com>"); |