linux-stable/include/linux/mfd/samsung/s5m8767.h
Krzysztof Kozlowski ee1e0994ab regulator: s5m8767: Use GPIO for controlling Buck9/eMMC
Add support for GPIO control (enable/disable) over Buck9. The Buck9
Converter is used as a supply for eMMC Host Controller.

BUCK9EN GPIO of S5M8767 chip may be used by application processor to
enable or disable the Buck9. This has two benefits:
 - It is faster than toggling it over I2C bus.
 - It allows disabling the regulator during suspend to RAM; The AP will
   enable it during resume; Without the patch the regulator supplying
   eMMC must be defined as fixed-regulator.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-27 20:24:17 +00:00

211 lines
4.6 KiB
C

/* s5m8767.h
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd
* http://www.samsung.com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#ifndef __LINUX_MFD_S5M8767_H
#define __LINUX_MFD_S5M8767_H
/* S5M8767 registers */
enum s5m8767_reg {
S5M8767_REG_ID,
S5M8767_REG_INT1,
S5M8767_REG_INT2,
S5M8767_REG_INT3,
S5M8767_REG_INT1M,
S5M8767_REG_INT2M,
S5M8767_REG_INT3M,
S5M8767_REG_STATUS1,
S5M8767_REG_STATUS2,
S5M8767_REG_STATUS3,
S5M8767_REG_CTRL1,
S5M8767_REG_CTRL2,
S5M8767_REG_LOWBAT1,
S5M8767_REG_LOWBAT2,
S5M8767_REG_BUCHG,
S5M8767_REG_DVSRAMP,
S5M8767_REG_DVSTIMER2 = 0x10,
S5M8767_REG_DVSTIMER3,
S5M8767_REG_DVSTIMER4,
S5M8767_REG_LDO1,
S5M8767_REG_LDO2,
S5M8767_REG_LDO3,
S5M8767_REG_LDO4,
S5M8767_REG_LDO5,
S5M8767_REG_LDO6,
S5M8767_REG_LDO7,
S5M8767_REG_LDO8,
S5M8767_REG_LDO9,
S5M8767_REG_LDO10,
S5M8767_REG_LDO11,
S5M8767_REG_LDO12,
S5M8767_REG_LDO13,
S5M8767_REG_LDO14 = 0x20,
S5M8767_REG_LDO15,
S5M8767_REG_LDO16,
S5M8767_REG_LDO17,
S5M8767_REG_LDO18,
S5M8767_REG_LDO19,
S5M8767_REG_LDO20,
S5M8767_REG_LDO21,
S5M8767_REG_LDO22,
S5M8767_REG_LDO23,
S5M8767_REG_LDO24,
S5M8767_REG_LDO25,
S5M8767_REG_LDO26,
S5M8767_REG_LDO27,
S5M8767_REG_LDO28,
S5M8767_REG_UVLO = 0x31,
S5M8767_REG_BUCK1CTRL1,
S5M8767_REG_BUCK1CTRL2,
S5M8767_REG_BUCK2CTRL,
S5M8767_REG_BUCK2DVS1,
S5M8767_REG_BUCK2DVS2,
S5M8767_REG_BUCK2DVS3,
S5M8767_REG_BUCK2DVS4,
S5M8767_REG_BUCK2DVS5,
S5M8767_REG_BUCK2DVS6,
S5M8767_REG_BUCK2DVS7,
S5M8767_REG_BUCK2DVS8,
S5M8767_REG_BUCK3CTRL,
S5M8767_REG_BUCK3DVS1,
S5M8767_REG_BUCK3DVS2,
S5M8767_REG_BUCK3DVS3,
S5M8767_REG_BUCK3DVS4,
S5M8767_REG_BUCK3DVS5,
S5M8767_REG_BUCK3DVS6,
S5M8767_REG_BUCK3DVS7,
S5M8767_REG_BUCK3DVS8,
S5M8767_REG_BUCK4CTRL,
S5M8767_REG_BUCK4DVS1,
S5M8767_REG_BUCK4DVS2,
S5M8767_REG_BUCK4DVS3,
S5M8767_REG_BUCK4DVS4,
S5M8767_REG_BUCK4DVS5,
S5M8767_REG_BUCK4DVS6,
S5M8767_REG_BUCK4DVS7,
S5M8767_REG_BUCK4DVS8,
S5M8767_REG_BUCK5CTRL1,
S5M8767_REG_BUCK5CTRL2,
S5M8767_REG_BUCK5CTRL3,
S5M8767_REG_BUCK5CTRL4,
S5M8767_REG_BUCK5CTRL5,
S5M8767_REG_BUCK6CTRL1,
S5M8767_REG_BUCK6CTRL2,
S5M8767_REG_BUCK7CTRL1,
S5M8767_REG_BUCK7CTRL2,
S5M8767_REG_BUCK8CTRL1,
S5M8767_REG_BUCK8CTRL2,
S5M8767_REG_BUCK9CTRL1,
S5M8767_REG_BUCK9CTRL2,
S5M8767_REG_LDO1CTRL,
S5M8767_REG_LDO2_1CTRL,
S5M8767_REG_LDO2_2CTRL,
S5M8767_REG_LDO2_3CTRL,
S5M8767_REG_LDO2_4CTRL,
S5M8767_REG_LDO3CTRL,
S5M8767_REG_LDO4CTRL,
S5M8767_REG_LDO5CTRL,
S5M8767_REG_LDO6CTRL,
S5M8767_REG_LDO7CTRL,
S5M8767_REG_LDO8CTRL,
S5M8767_REG_LDO9CTRL,
S5M8767_REG_LDO10CTRL,
S5M8767_REG_LDO11CTRL,
S5M8767_REG_LDO12CTRL,
S5M8767_REG_LDO13CTRL,
S5M8767_REG_LDO14CTRL,
S5M8767_REG_LDO15CTRL,
S5M8767_REG_LDO16CTRL,
S5M8767_REG_LDO17CTRL,
S5M8767_REG_LDO18CTRL,
S5M8767_REG_LDO19CTRL,
S5M8767_REG_LDO20CTRL,
S5M8767_REG_LDO21CTRL,
S5M8767_REG_LDO22CTRL,
S5M8767_REG_LDO23CTRL,
S5M8767_REG_LDO24CTRL,
S5M8767_REG_LDO25CTRL,
S5M8767_REG_LDO26CTRL,
S5M8767_REG_LDO27CTRL,
S5M8767_REG_LDO28CTRL,
};
/* S5M8767 regulator ids */
enum s5m8767_regulators {
S5M8767_LDO1,
S5M8767_LDO2,
S5M8767_LDO3,
S5M8767_LDO4,
S5M8767_LDO5,
S5M8767_LDO6,
S5M8767_LDO7,
S5M8767_LDO8,
S5M8767_LDO9,
S5M8767_LDO10,
S5M8767_LDO11,
S5M8767_LDO12,
S5M8767_LDO13,
S5M8767_LDO14,
S5M8767_LDO15,
S5M8767_LDO16,
S5M8767_LDO17,
S5M8767_LDO18,
S5M8767_LDO19,
S5M8767_LDO20,
S5M8767_LDO21,
S5M8767_LDO22,
S5M8767_LDO23,
S5M8767_LDO24,
S5M8767_LDO25,
S5M8767_LDO26,
S5M8767_LDO27,
S5M8767_LDO28,
S5M8767_BUCK1,
S5M8767_BUCK2,
S5M8767_BUCK3,
S5M8767_BUCK4,
S5M8767_BUCK5,
S5M8767_BUCK6,
S5M8767_BUCK7,
S5M8767_BUCK8,
S5M8767_BUCK9,
S5M8767_AP_EN32KHZ,
S5M8767_CP_EN32KHZ,
S5M8767_REG_MAX,
};
/* LDO_EN/BUCK_EN field in registers */
#define S5M8767_ENCTRL_SHIFT 6
#define S5M8767_ENCTRL_MASK (0x3 << S5M8767_ENCTRL_SHIFT)
/*
* LDO_EN/BUCK_EN register value for controlling this Buck or LDO
* by GPIO (PWREN, BUCKEN).
*/
#define S5M8767_ENCTRL_USE_GPIO 0x1
/*
* Values for BUCK_RAMP field in DVS_RAMP register, matching raw values
* in mV/us.
*/
enum s5m8767_dvs_buck_ramp_values {
S5M8767_DVS_BUCK_RAMP_5 = 0x4,
S5M8767_DVS_BUCK_RAMP_10 = 0x9,
S5M8767_DVS_BUCK_RAMP_12_5 = 0xb,
S5M8767_DVS_BUCK_RAMP_25 = 0xd,
S5M8767_DVS_BUCK_RAMP_50 = 0xe,
S5M8767_DVS_BUCK_RAMP_100 = 0xf,
};
#define S5M8767_DVS_BUCK_RAMP_SHIFT 4
#define S5M8767_DVS_BUCK_RAMP_MASK (0xf << S5M8767_DVS_BUCK_RAMP_SHIFT)
#endif /* __LINUX_MFD_S5M8767_H */