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https://github.com/AsahiLinux/u-boot
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103e83a1b0
Add the max8998 controller for Driver model. Samsung S5P series are using max8998 pmic controller. In future, it should be supported the regulator framework. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/*
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* Copyright (C) 2016 Samsung Electronics
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* Jaehoon Chung <jh80.chung@samsung.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <i2c.h>
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#include <power/pmic.h>
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#include <power/max8998_pmic.h>
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#include <errno.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int max8998_reg_count(struct udevice *dev)
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{
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return PMIC_NUM_OF_REGS;
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}
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static int max8998_write(struct udevice *dev, uint reg, const uint8_t *buff,
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int len)
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{
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int ret;
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ret = dm_i2c_write(dev, reg, buff, len);
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if (ret)
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error("write error to device: %p register: %#x!", dev, reg);
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return ret;
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}
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static int max8998_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
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{
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int ret;
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ret = dm_i2c_read(dev, reg, buff, len);
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if (ret)
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error("read error from device: %p register: %#x!", dev, reg);
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return ret;
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}
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static struct dm_pmic_ops max8998_ops = {
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.reg_count = max8998_reg_count,
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.read = max8998_read,
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.write = max8998_write,
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};
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static const struct udevice_id max8998_ids[] = {
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{ .compatible = "maxim,max8998" },
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{ }
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};
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U_BOOT_DRIVER(pmic_max8998) = {
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.name = "max8998_pmic",
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.id = UCLASS_PMIC,
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.of_match = max8998_ids,
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.ops = &max8998_ops,
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};
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