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a3a6dde671
There are three major variants of the AXP PMIC GPIO functionality (plus PMICs with no GPIOs at all). Except for GPIO3 on the AXP209, which uses a different register layout, it is straightforward to support all three variants with a single driver. Do this, and in the process remove the GPIO-related definitions from the PMIC-specific headers, and therefore the dependency on AXP_PMIC_BUS. Signed-off-by: Samuel Holland <samuel@sholland.org>
87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net>
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*/
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#include <linux/bitops.h>
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enum axp209_reg {
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AXP209_POWER_STATUS = 0x00,
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AXP209_CHIP_VERSION = 0x03,
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AXP209_OUTPUT_CTRL = 0x12,
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AXP209_DCDC2_VOLTAGE = 0x23,
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AXP209_VRC_DCDC2_LDO3 = 0x25,
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AXP209_DCDC3_VOLTAGE = 0x27,
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AXP209_LDO24_VOLTAGE = 0x28,
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AXP209_LDO3_VOLTAGE = 0x29,
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AXP209_IRQ_ENABLE1 = 0x40,
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AXP209_IRQ_ENABLE2 = 0x41,
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AXP209_IRQ_ENABLE3 = 0x42,
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AXP209_IRQ_ENABLE4 = 0x43,
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AXP209_IRQ_ENABLE5 = 0x44,
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AXP209_IRQ_STATUS5 = 0x4c,
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AXP209_SHUTDOWN = 0x32,
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AXP209_GPIO0_CTRL = 0x90,
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AXP209_GPIO1_CTRL = 0x92,
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AXP209_GPIO2_CTRL = 0x93,
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};
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#define AXP209_POWER_STATUS_ON_BY_DC BIT(0)
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#define AXP209_POWER_STATUS_VBUS_USABLE BIT(4)
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#define AXP209_CHIP_VERSION_MASK 0x0f
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#define AXP209_OUTPUT_CTRL_EXTEN BIT(0)
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#define AXP209_OUTPUT_CTRL_DCDC3 BIT(1)
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#define AXP209_OUTPUT_CTRL_LDO2 BIT(2)
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#define AXP209_OUTPUT_CTRL_LDO4 BIT(3)
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#define AXP209_OUTPUT_CTRL_DCDC2 BIT(4)
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#define AXP209_OUTPUT_CTRL_LDO3 BIT(6)
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/*
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* AXP209 datasheet contains wrong information about LDO3 VRC:
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* - VRC is actually enabled when BIT(1) is True
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* - VRC is actually not enabled by default (BIT(3) = 0 after reset)
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*/
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#define AXP209_VRC_LDO3_EN BIT(3)
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#define AXP209_VRC_DCDC2_EN BIT(2)
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#define AXP209_VRC_LDO3_800uV_uS (BIT(1) | AXP209_VRC_LDO3_EN)
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#define AXP209_VRC_LDO3_1600uV_uS AXP209_VRC_LDO3_EN
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#define AXP209_VRC_DCDC2_800uV_uS (BIT(0) | AXP209_VRC_DCDC2_EN)
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#define AXP209_VRC_DCDC2_1600uV_uS AXP209_VRC_DCDC2_EN
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#define AXP209_VRC_LDO3_MASK 0xa
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#define AXP209_VRC_DCDC2_MASK 0x5
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#define AXP209_VRC_DCDC2_SLOPE_SET(reg, cfg) \
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(((reg) & ~AXP209_VRC_DCDC2_MASK) | \
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((cfg) & AXP209_VRC_DCDC2_MASK))
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#define AXP209_VRC_LDO3_SLOPE_SET(reg, cfg) \
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(((reg) & ~AXP209_VRC_LDO3_MASK) | \
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((cfg) & AXP209_VRC_LDO3_MASK))
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#define AXP209_LDO24_LDO2_MASK 0xf0
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#define AXP209_LDO24_LDO4_MASK 0x0f
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#define AXP209_LDO24_LDO2_SET(reg, cfg) \
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(((reg) & ~AXP209_LDO24_LDO2_MASK) | \
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(((cfg) << 4) & AXP209_LDO24_LDO2_MASK))
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#define AXP209_LDO24_LDO4_SET(reg, cfg) \
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(((reg) & ~AXP209_LDO24_LDO4_MASK) | \
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(((cfg) << 0) & AXP209_LDO24_LDO4_MASK))
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#define AXP209_LDO3_VOLTAGE_FROM_LDO3IN BIT(7)
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#define AXP209_LDO3_VOLTAGE_MASK 0x7f
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#define AXP209_LDO3_VOLTAGE_SET(x) ((x) & AXP209_LDO3_VOLTAGE_MASK)
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#define AXP209_IRQ5_PEK_UP BIT(6)
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#define AXP209_IRQ5_PEK_DOWN BIT(5)
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#define AXP209_POWEROFF BIT(7)
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#define AXP209_GPIO_CTRL_OUTPUT_LOW 0x00
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#define AXP209_GPIO_CTRL_OUTPUT_HIGH 0x01
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#define AXP209_GPIO_CTRL_INPUT 0x02
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#ifdef CONFIG_AXP209_POWER
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#define AXP_POWER_STATUS 0x00
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#define AXP_POWER_STATUS_ALDO_IN BIT(0)
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#endif
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