tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
mfd: simple-mfd-i2c: Enable support for the silergy,sy7636a
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
authored by
Alistair Francis
and committed by
Lee Jones
5913eb45
bae5a4ac
+45
+11
drivers/mfd/simple-mfd-i2c.c
+11
drivers/mfd/simple-mfd-i2c.c
···
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return ret;
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}
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static const struct mfd_cell sy7636a_cells[] = {
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{ .name = "sy7636a-regulator", },
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{ .name = "sy7636a-temperature", },
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};
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static const struct simple_mfd_data silergy_sy7636a = {
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.mfd_cell = sy7636a_cells,
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.mfd_cell_size = ARRAY_SIZE(sy7636a_cells),
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};
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static const struct of_device_id simple_mfd_i2c_of_match[] = {
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{ .compatible = "kontron,sl28cpld" },
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{ .compatible = "silergy,sy7636a", .data = &silergy_sy7636a},
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{}
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};
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MODULE_DEVICE_TABLE(of, simple_mfd_i2c_of_match);
+34
include/linux/mfd/sy7636a.h
+34
include/linux/mfd/sy7636a.h
···
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Functions to access SY3686A power management chip.
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*
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* Copyright (C) 2021 reMarkable AS - http://www.remarkable.com/
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*/
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#ifndef __MFD_SY7636A_H
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#define __MFD_SY7636A_H
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#define SY7636A_REG_OPERATION_MODE_CRL 0x00
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/* It is set if a gpio is used to control the regulator */
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#define SY7636A_OPERATION_MODE_CRL_VCOMCTL BIT(6)
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#define SY7636A_OPERATION_MODE_CRL_ONOFF BIT(7)
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#define SY7636A_REG_VCOM_ADJUST_CTRL_L 0x01
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#define SY7636A_REG_VCOM_ADJUST_CTRL_H 0x02
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#define SY7636A_REG_VCOM_ADJUST_CTRL_MASK 0x01ff
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#define SY7636A_REG_VLDO_VOLTAGE_ADJULST_CTRL 0x03
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#define SY7636A_REG_POWER_ON_DELAY_TIME 0x06
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#define SY7636A_REG_FAULT_FLAG 0x07
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#define SY7636A_FAULT_FLAG_PG BIT(0)
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#define SY7636A_REG_TERMISTOR_READOUT 0x08
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#define SY7636A_REG_MAX 0x08
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#define VCOM_ADJUST_CTRL_MASK 0x1ff
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// Used to shift the high byte
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#define VCOM_ADJUST_CTRL_SHIFT 8
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// Used to scale from VCOM_ADJUST_CTRL to mv
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#define VCOM_ADJUST_CTRL_SCAL 10000
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#define FAULT_FLAG_SHIFT 1
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#endif /* __LINUX_MFD_SY7636A_H */