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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
6a3d119b BR |
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 | |
6a3d119b BR |
10 | */ |
11 | ||
12 | #include <linux/kernel.h> | |
1346a1c7 | 13 | #include <linux/module.h> |
6a3d119b BR |
14 | |
15 | #include <linux/mfd/pcf50633/core.h> | |
16 | #include <linux/mfd/pcf50633/gpio.h> | |
7f849a39 | 17 | #include <linux/mfd/pcf50633/pmic.h> |
6a3d119b BR |
18 | |
19 | static 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 | ||
33 | int 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 | } | |
41 | EXPORT_SYMBOL_GPL(pcf50633_gpio_set); | |
42 | ||
43 | u8 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 | } | |
52 | EXPORT_SYMBOL_GPL(pcf50633_gpio_get); | |
53 | ||
54 | int 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 | } | |
63 | EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_set); | |
64 | ||
65 | int 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 | } | |
74 | EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_get); | |
75 | ||
76 | int 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 | } | |
89 | EXPORT_SYMBOL_GPL(pcf50633_gpio_power_supply_set); | |
1346a1c7 AB |
90 | |
91 | MODULE_LICENSE("GPL"); |