60013b94d9
This adds a driver for the STw481x PMICs found in the Nomadik family of platforms. This one uses pure device tree probing. Print some of the OTP registers on boot and register a regulator MFD child. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/*
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* Copyright (C) 2011 ST-Ericsson SA
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* Written on behalf of Linaro for ST-Ericsson
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*
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* Author: Linus Walleij <linus.walleij@linaro.org>
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*
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* License terms: GNU General Public License (GPL) version 2
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*/
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#ifndef MFD_STW481X_H
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#define MFD_STW481X_H
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#include <linux/i2c.h>
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#include <linux/regulator/machine.h>
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#include <linux/regmap.h>
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#include <linux/bitops.h>
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/* These registers are accessed from more than one driver */
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#define STW_CONF1 0x11U
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#define STW_CONF1_PDN_VMMC 0x01U
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#define STW_CONF1_VMMC_MASK 0x0eU
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#define STW_CONF1_VMMC_1_8V 0x02U
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#define STW_CONF1_VMMC_2_85V 0x04U
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#define STW_CONF1_VMMC_3V 0x06U
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#define STW_CONF1_VMMC_1_85V 0x08U
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#define STW_CONF1_VMMC_2_6V 0x0aU
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#define STW_CONF1_VMMC_2_7V 0x0cU
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#define STW_CONF1_VMMC_3_3V 0x0eU
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#define STW_CONF1_MMC_LS_STATUS 0x10U
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#define STW_PCTL_REG_LO 0x1eU
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#define STW_PCTL_REG_HI 0x1fU
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#define STW_CONF1_V_MONITORING 0x20U
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#define STW_CONF1_IT_WARN 0x40U
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#define STW_CONF1_PDN_VAUX 0x80U
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#define STW_CONF2 0x20U
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#define STW_CONF2_MASK_TWARN 0x01U
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#define STW_CONF2_VMMC_EXT 0x02U
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#define STW_CONF2_MASK_IT_WAKE_UP 0x04U
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#define STW_CONF2_GPO1 0x08U
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#define STW_CONF2_GPO2 0x10U
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#define STW_VCORE_SLEEP 0x21U
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/**
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* struct stw481x - state holder for the Stw481x drivers
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* @mutex: mutex to serialize I2C accesses
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* @i2c_client: corresponding I2C client
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* @regulator: regulator device for regulator children
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* @map: regmap handle to access device registers
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*/
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struct stw481x {
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struct mutex lock;
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struct i2c_client *client;
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struct regulator_dev *vmmc_regulator;
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struct regmap *map;
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};
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#endif
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