diff options
Diffstat (limited to 'drivers/regulator/reg-mc9s08dz60.c')
-rw-r--r-- | drivers/regulator/reg-mc9s08dz60.c | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/drivers/regulator/reg-mc9s08dz60.c b/drivers/regulator/reg-mc9s08dz60.c new file mode 100644 index 000000000000..f2748e99fd80 --- /dev/null +++ b/drivers/regulator/reg-mc9s08dz60.c @@ -0,0 +1,236 @@ +/* + * Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/bitops.h> +#include <linux/err.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/driver.h> +#include <linux/mfd/mc9s08dz60/core.h> +#include <linux/mfd/mc9s08dz60/pmic.h> +#include <linux/platform_device.h> +#include <linux/pmic_status.h> + +/* lcd */ +static int mc9s08dz60_lcd_enable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_1, 6, 1); +} + +static int mc9s08dz60_lcd_disable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_1, 6, 0); +} + +static struct regulator_ops mc9s08dz60_lcd_ops = { + .enable = mc9s08dz60_lcd_enable, + .disable = mc9s08dz60_lcd_disable, +}; + +/* wifi */ +static int mc9s08dz60_wifi_enable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_1, 5, 1); +} + +static int mc9s08dz60_wifi_disable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_1, 5, 0); +} + +static struct regulator_ops mc9s08dz60_wifi_ops = { + .enable = mc9s08dz60_wifi_enable, + .disable = mc9s08dz60_wifi_disable, +}; + +/* hdd */ +static int mc9s08dz60_hdd_enable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_1, 4, 1); +} + +static int mc9s08dz60_hdd_disable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_1, 4, 0); +} + +static struct regulator_ops mc9s08dz60_hdd_ops = { + .enable = mc9s08dz60_hdd_enable, + .disable = mc9s08dz60_hdd_disable, +}; + +/* gps */ +static int mc9s08dz60_gps_enable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_2, 0, 1); +} + +static int mc9s08dz60_gps_disable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_2, 0, 0); +} + +static struct regulator_ops mc9s08dz60_gps_ops = { + .enable = mc9s08dz60_gps_enable, + .disable = mc9s08dz60_gps_disable, +}; + +/* speaker */ +static int mc9s08dz60_speaker_enable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_1, 0, 1); +} + +static int mc9s08dz60_speaker_disable(struct regulator_dev *reg) +{ + return pmic_gpio_set_bit_val(MCU_GPIO_REG_GPIO_CONTROL_1, 0, 0); +} + +static struct regulator_ops mc9s08dz60_speaker_ops = { + .enable = mc9s08dz60_speaker_enable, + .disable = mc9s08dz60_speaker_disable, +}; + +static struct regulator_desc mc9s08dz60_reg[] = { + { + .name = "LCD", + .id = MC9S08DZ60_LCD, + .ops = &mc9s08dz60_lcd_ops, + .irq = 0, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE + }, + { + .name = "WIFI", + .id = MC9S08DZ60_WIFI, + .ops = &mc9s08dz60_wifi_ops, + .irq = 0, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE + }, + { + .name = "HDD", + .id = MC9S08DZ60_HDD, + .ops = &mc9s08dz60_hdd_ops, + .irq = 0, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE + }, + { + .name = "GPS", + .id = MC9S08DZ60_GPS, + .ops = &mc9s08dz60_gps_ops, + .irq = 0, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE + }, + { + .name = "SPKR", + .id = MC9S08DZ60_SPKR, + .ops = &mc9s08dz60_speaker_ops, + .irq = 0, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE + }, + +}; + +static int mc9s08dz60_regulator_probe(struct platform_device *pdev) +{ + struct regulator_dev *rdev; + + /* register regulator */ + rdev = regulator_register(&mc9s08dz60_reg[pdev->id], &pdev->dev, + pdev->dev.platform_data, + dev_get_drvdata(&pdev->dev)); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register %s\n", + mc9s08dz60_reg[pdev->id].name); + return PTR_ERR(rdev); + } + + return 0; +} + + +static int mc9s08dz60_regulator_remove(struct platform_device *pdev) +{ + struct regulator_dev *rdev = platform_get_drvdata(pdev); + + regulator_unregister(rdev); + + return 0; +} + +int mc9s08dz60_register_regulator(struct mc9s08dz60 *mc9s08dz60, int reg, + struct regulator_init_data *initdata) +{ + struct platform_device *pdev; + int ret; + + if (mc9s08dz60->pmic.pdev[reg]) + return -EBUSY; + + pdev = platform_device_alloc("mc9s08dz60-regu", reg); + if (!pdev) + return -ENOMEM; + + mc9s08dz60->pmic.pdev[reg] = pdev; + + initdata->driver_data = mc9s08dz60; + + pdev->dev.platform_data = initdata; + pdev->dev.parent = mc9s08dz60->dev; + platform_set_drvdata(pdev, mc9s08dz60); + ret = platform_device_add(pdev); + + if (ret != 0) { + dev_err(mc9s08dz60->dev, + "Failed to register regulator %d: %d\n", + reg, ret); + platform_device_del(pdev); + mc9s08dz60->pmic.pdev[reg] = NULL; + } + + return ret; +} +EXPORT_SYMBOL_GPL(mc9s08dz60_register_regulator); + +static struct platform_driver mc9s08dz60_regulator_driver = { + .probe = mc9s08dz60_regulator_probe, + .remove = mc9s08dz60_regulator_remove, + .driver = { + .name = "mc9s08dz60-regu", + }, +}; + +static int __init mc9s08dz60_regulator_init(void) +{ + return platform_driver_register(&mc9s08dz60_regulator_driver); +} +subsys_initcall(mc9s08dz60_regulator_init); + +static void __exit mc9s08dz60_regulator_exit(void) +{ + platform_driver_unregister(&mc9s08dz60_regulator_driver); +} +module_exit(mc9s08dz60_regulator_exit); + + +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("MC9S08DZ60 Regulator driver"); +MODULE_LICENSE("GPL"); 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