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Diffstat (limited to 'include/linux/mfd/mc34704/core.h')
-rw-r--r-- | include/linux/mfd/mc34704/core.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/include/linux/mfd/mc34704/core.h b/include/linux/mfd/mc34704/core.h new file mode 100644 index 000000000000..f63ef0826364 --- /dev/null +++ b/include/linux/mfd/mc34704/core.h @@ -0,0 +1,84 @@ +/* + * 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 + */ + +#ifndef __LINUX_MFD_MC34704_CORE_H_ +#define __LINUX_MFD_MC34704_CORE_H_ + +#include <linux/kernel.h> +#include <linux/mutex.h> +#include <linux/workqueue.h> + +#define MC34704_BKLT 0 /* REG1 5V for Backlight */ +#define MC34704_CPU 1 /* REG2 3.3V for CPU & CPU board peripherals */ +#define MC34704_CORE 2 /* REG3 1.45V for CPU Core */ +#define MC34704_DDR 3 /* REG4 1.8V for DDR */ +#define MC34704_PERS 4 /* REG5 3.3V for Personality board */ +#define MC34704_REG6 5 /* REG6 not used */ +#define MC34704_REG7 6 /* REG7 not used */ +#define MC34704_REG8 7 /* REG8 not used */ +#define MC34704_REG_NUM 8 + +/* Regulator voltages in mV and dynamic voltage scaling limits in percent */ + +#define REG1_V_MV 5000 +#define REG1_DVS_MIN_PCT (-10) +#define REG1_DVS_MAX_PCT 10 + +#define REG2_V_MV 3300 +#define REG2_DVS_MIN_PCT (-20) +#define REG2_DVS_MAX_PCT 17.5 + +#define REG3_V_MV 1450 +#define REG3_DVS_MIN_PCT (-20) +#define REG3_DVS_MAX_PCT 17.5 + +#define REG4_V_MV 1800 +#define REG4_DVS_MIN_PCT (-20) +#define REG4_DVS_MAX_PCT 17.5 + +#define REG5_V_MV 3300 +#define REG5_DVS_MIN_PCT (-20) +#define REG5_DVS_MAX_PCT 17.5 + +struct mc34704; +struct regulator_init_data; + +struct mc34704_platform_data { + int (*init) (struct mc34704 *); +}; + +struct mc34704_pmic { + /* regulator devices */ + struct platform_device *pdev[MC34704_REG_NUM]; +}; + +struct mc34704 { + int rev; /* chip revision */ + + struct device *dev; + + /* device IO */ + union { + struct i2c_client *i2c_client; + struct spi_device *spi_device; + }; + u16 *reg_cache; + + /* Client devices */ + struct mc34704_pmic pmic; +}; + +int mc34704_register_regulator(struct mc34704 *mc34704, int reg, + struct regulator_init_data *initdata); + +#endif |