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6f8da5df8c
This patch adds support for the tps65090 charger driver. This driver is responsible for controlling the charger aspect of the tps65090 mfd. Currently, this mainly consists of turning on and off the charger, but some features of the charger can be supported through this driver including: - Enable Auto Recharge based on Battery voltage - Fast Charge Safety Timer - Maximum battery discharge current - Maximum battery adapter current - Enable External Charge - Disable charging termination based on low charger current (supported) Once the driver is accepted, later patches can add support for the features above which are not yet supported. Based on work by: Syed Rafiuddin <srafiuddin@nvidia.com> Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
137 lines
3.4 KiB
C
137 lines
3.4 KiB
C
/*
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* Core driver interface for TI TPS65090 PMIC family
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*
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* Copyright (C) 2012 NVIDIA Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef __LINUX_MFD_TPS65090_H
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#define __LINUX_MFD_TPS65090_H
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#include <linux/irq.h>
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#include <linux/regmap.h>
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/* TPS65090 IRQs */
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enum {
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TPS65090_IRQ_VAC_STATUS_CHANGE,
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TPS65090_IRQ_VSYS_STATUS_CHANGE,
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TPS65090_IRQ_BAT_STATUS_CHANGE,
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TPS65090_IRQ_CHARGING_STATUS_CHANGE,
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TPS65090_IRQ_CHARGING_COMPLETE,
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TPS65090_IRQ_OVERLOAD_DCDC1,
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TPS65090_IRQ_OVERLOAD_DCDC2,
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TPS65090_IRQ_OVERLOAD_DCDC3,
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TPS65090_IRQ_OVERLOAD_FET1,
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TPS65090_IRQ_OVERLOAD_FET2,
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TPS65090_IRQ_OVERLOAD_FET3,
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TPS65090_IRQ_OVERLOAD_FET4,
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TPS65090_IRQ_OVERLOAD_FET5,
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TPS65090_IRQ_OVERLOAD_FET6,
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TPS65090_IRQ_OVERLOAD_FET7,
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};
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/* TPS65090 Regulator ID */
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enum {
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TPS65090_REGULATOR_DCDC1,
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TPS65090_REGULATOR_DCDC2,
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TPS65090_REGULATOR_DCDC3,
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TPS65090_REGULATOR_FET1,
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TPS65090_REGULATOR_FET2,
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TPS65090_REGULATOR_FET3,
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TPS65090_REGULATOR_FET4,
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TPS65090_REGULATOR_FET5,
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TPS65090_REGULATOR_FET6,
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TPS65090_REGULATOR_FET7,
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TPS65090_REGULATOR_LDO1,
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TPS65090_REGULATOR_LDO2,
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/* Last entry for maximum ID */
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TPS65090_REGULATOR_MAX,
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};
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struct tps65090 {
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struct device *dev;
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struct regmap *rmap;
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struct regmap_irq_chip_data *irq_data;
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};
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/*
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* struct tps65090_regulator_plat_data
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*
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* @reg_init_data: The regulator init data.
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* @enable_ext_control: Enable extrenal control or not. Only available for
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* DCDC1, DCDC2 and DCDC3.
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* @gpio: Gpio number if external control is enabled and controlled through
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* gpio.
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*/
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struct tps65090_regulator_plat_data {
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struct regulator_init_data *reg_init_data;
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bool enable_ext_control;
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int gpio;
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};
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struct tps65090_platform_data {
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int irq_base;
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char **supplied_to;
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size_t num_supplicants;
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int enable_low_current_chrg;
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struct tps65090_regulator_plat_data *reg_pdata[TPS65090_REGULATOR_MAX];
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};
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/*
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* NOTE: the functions below are not intended for use outside
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* of the TPS65090 sub-device drivers
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*/
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static inline int tps65090_write(struct device *dev, int reg, uint8_t val)
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{
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struct tps65090 *tps = dev_get_drvdata(dev);
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return regmap_write(tps->rmap, reg, val);
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}
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static inline int tps65090_read(struct device *dev, int reg, uint8_t *val)
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{
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struct tps65090 *tps = dev_get_drvdata(dev);
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unsigned int temp_val;
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int ret;
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ret = regmap_read(tps->rmap, reg, &temp_val);
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if (!ret)
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*val = temp_val;
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return ret;
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}
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static inline int tps65090_set_bits(struct device *dev, int reg,
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uint8_t bit_num)
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{
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struct tps65090 *tps = dev_get_drvdata(dev);
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return regmap_update_bits(tps->rmap, reg, BIT(bit_num), ~0u);
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}
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static inline int tps65090_clr_bits(struct device *dev, int reg,
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uint8_t bit_num)
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{
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struct tps65090 *tps = dev_get_drvdata(dev);
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return regmap_update_bits(tps->rmap, reg, BIT(bit_num), 0u);
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}
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#endif /*__LINUX_MFD_TPS65090_H */
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