1// SPDX-License-Identifier: GPL-2.0-or-later
2/* NXP PCF50633 GPIO Driver
3 *
4 * (C) 2006-2008 by Openmoko, Inc.
5 * Author: Balaji Rao <balajirrao@openmoko.org>
6 * All rights reserved.
7 *
8 * Broken down from monstrous PCF50633 driver mainly by
9 * Harald Welte, Andy Green and Werner Almesberger
10 */
11
12#include <linux/kernel.h>
13#include <linux/module.h>
14
15#include <linux/mfd/pcf50633/core.h>
16#include <linux/mfd/pcf50633/gpio.h>
17#include <linux/mfd/pcf50633/pmic.h>
18
19static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
20	[PCF50633_REGULATOR_AUTO]	= PCF50633_REG_AUTOOUT,
21	[PCF50633_REGULATOR_DOWN1]	= PCF50633_REG_DOWN1OUT,
22	[PCF50633_REGULATOR_DOWN2]	= PCF50633_REG_DOWN2OUT,
23	[PCF50633_REGULATOR_MEMLDO]	= PCF50633_REG_MEMLDOOUT,
24	[PCF50633_REGULATOR_LDO1]	= PCF50633_REG_LDO1OUT,
25	[PCF50633_REGULATOR_LDO2]	= PCF50633_REG_LDO2OUT,
26	[PCF50633_REGULATOR_LDO3]	= PCF50633_REG_LDO3OUT,
27	[PCF50633_REGULATOR_LDO4]	= PCF50633_REG_LDO4OUT,
28	[PCF50633_REGULATOR_LDO5]	= PCF50633_REG_LDO5OUT,
29	[PCF50633_REGULATOR_LDO6]	= PCF50633_REG_LDO6OUT,
30	[PCF50633_REGULATOR_HCLDO]	= PCF50633_REG_HCLDOOUT,
31};
32
33int pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, u8 val)
34{
35	u8 reg;
36
37	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
38
39	return pcf50633_reg_set_bit_mask(pcf, reg, 0x07, val);
40}
41EXPORT_SYMBOL_GPL(pcf50633_gpio_set);
42
43u8 pcf50633_gpio_get(struct pcf50633 *pcf, int gpio)
44{
45	u8 reg, val;
46
47	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
48	val = pcf50633_reg_read(pcf, reg) & 0x07;
49
50	return val;
51}
52EXPORT_SYMBOL_GPL(pcf50633_gpio_get);
53
54int pcf50633_gpio_invert_set(struct pcf50633 *pcf, int gpio, int invert)
55{
56	u8 val, reg;
57
58	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
59	val = !!invert << 3;
60
61	return pcf50633_reg_set_bit_mask(pcf, reg, 1 << 3, val);
62}
63EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_set);
64
65int pcf50633_gpio_invert_get(struct pcf50633 *pcf, int gpio)
66{
67	u8 reg, val;
68
69	reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
70	val = pcf50633_reg_read(pcf, reg);
71
72	return val & (1 << 3);
73}
74EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_get);
75
76int pcf50633_gpio_power_supply_set(struct pcf50633 *pcf,
77					int gpio, int regulator, int on)
78{
79	u8 reg, val, mask;
80
81	/* the *ENA register is always one after the *OUT register */
82	reg = pcf50633_regulator_registers[regulator] + 1;
83
84	val = !!on << (gpio - PCF50633_GPIO1);
85	mask = 1 << (gpio - PCF50633_GPIO1);
86
87	return pcf50633_reg_set_bit_mask(pcf, reg, mask, val);
88}
89EXPORT_SYMBOL_GPL(pcf50633_gpio_power_supply_set);
90
91MODULE_LICENSE("GPL");
92