| .. | .. |
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| 1 | +// SPDX-License-Identifier: GPL-2.0-or-later |
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| 1 | 2 | /* |
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| 2 | 3 | * lm3533-ctrlbank.c -- LM3533 Generic Control Bank interface |
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| 3 | 4 | * |
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| 4 | 5 | * Copyright (C) 2011-2012 Texas Instruments |
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| 5 | 6 | * |
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| 6 | 7 | * Author: Johan Hovold <jhovold@gmail.com> |
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| 7 | | - * |
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| 8 | | - * This program is free software; you can redistribute it and/or modify it |
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| 9 | | - * under the terms of the GNU General Public License as published by the |
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| 10 | | - * Free Software Foundation; either version 2 of the License, or (at your |
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| 11 | | - * option) any later version. |
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| 12 | 8 | */ |
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| 13 | 9 | |
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| 14 | 10 | #include <linux/device.h> |
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| .. | .. |
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| 21 | 17 | #define LM3533_MAX_CURRENT_MAX 29800 |
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| 22 | 18 | #define LM3533_MAX_CURRENT_STEP 800 |
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| 23 | 19 | |
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| 24 | | -#define LM3533_BRIGHTNESS_MAX 255 |
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| 25 | 20 | #define LM3533_PWM_MAX 0x3f |
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| 26 | 21 | |
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| 27 | 22 | #define LM3533_REG_PWM_BASE 0x14 |
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| .. | .. |
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| 93 | 88 | } |
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| 94 | 89 | EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_max_current); |
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| 95 | 90 | |
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| 96 | | -#define lm3533_ctrlbank_set(_name, _NAME) \ |
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| 97 | | -int lm3533_ctrlbank_set_##_name(struct lm3533_ctrlbank *cb, u8 val) \ |
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| 98 | | -{ \ |
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| 99 | | - u8 reg; \ |
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| 100 | | - int ret; \ |
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| 101 | | - \ |
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| 102 | | - if (val > LM3533_##_NAME##_MAX) \ |
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| 103 | | - return -EINVAL; \ |
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| 104 | | - \ |
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| 105 | | - reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_##_NAME##_BASE); \ |
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| 106 | | - ret = lm3533_write(cb->lm3533, reg, val); \ |
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| 107 | | - if (ret) \ |
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| 108 | | - dev_err(cb->dev, "failed to set " #_name "\n"); \ |
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| 109 | | - \ |
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| 110 | | - return ret; \ |
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| 111 | | -} \ |
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| 112 | | -EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_##_name); |
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| 91 | +int lm3533_ctrlbank_set_brightness(struct lm3533_ctrlbank *cb, u8 val) |
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| 92 | +{ |
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| 93 | + u8 reg; |
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| 94 | + int ret; |
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| 113 | 95 | |
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| 114 | | -#define lm3533_ctrlbank_get(_name, _NAME) \ |
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| 115 | | -int lm3533_ctrlbank_get_##_name(struct lm3533_ctrlbank *cb, u8 *val) \ |
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| 116 | | -{ \ |
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| 117 | | - u8 reg; \ |
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| 118 | | - int ret; \ |
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| 119 | | - \ |
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| 120 | | - reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_##_NAME##_BASE); \ |
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| 121 | | - ret = lm3533_read(cb->lm3533, reg, val); \ |
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| 122 | | - if (ret) \ |
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| 123 | | - dev_err(cb->dev, "failed to get " #_name "\n"); \ |
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| 124 | | - \ |
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| 125 | | - return ret; \ |
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| 126 | | -} \ |
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| 127 | | -EXPORT_SYMBOL_GPL(lm3533_ctrlbank_get_##_name); |
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| 96 | + reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_BRIGHTNESS_BASE); |
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| 97 | + ret = lm3533_write(cb->lm3533, reg, val); |
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| 98 | + if (ret) |
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| 99 | + dev_err(cb->dev, "failed to set brightness\n"); |
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| 128 | 100 | |
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| 129 | | -lm3533_ctrlbank_set(brightness, BRIGHTNESS); |
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| 130 | | -lm3533_ctrlbank_get(brightness, BRIGHTNESS); |
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| 101 | + return ret; |
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| 102 | +} |
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| 103 | +EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_brightness); |
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| 104 | + |
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| 105 | +int lm3533_ctrlbank_get_brightness(struct lm3533_ctrlbank *cb, u8 *val) |
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| 106 | +{ |
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| 107 | + u8 reg; |
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| 108 | + int ret; |
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| 109 | + |
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| 110 | + reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_BRIGHTNESS_BASE); |
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| 111 | + ret = lm3533_read(cb->lm3533, reg, val); |
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| 112 | + if (ret) |
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| 113 | + dev_err(cb->dev, "failed to get brightness\n"); |
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| 114 | + |
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| 115 | + return ret; |
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| 116 | +} |
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| 117 | +EXPORT_SYMBOL_GPL(lm3533_ctrlbank_get_brightness); |
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| 131 | 118 | |
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| 132 | 119 | /* |
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| 133 | 120 | * PWM-input control mask: |
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| .. | .. |
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| 139 | 126 | * bit 1 - PWM-input enabled in Zone 0 |
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| 140 | 127 | * bit 0 - PWM-input enabled |
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| 141 | 128 | */ |
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| 142 | | -lm3533_ctrlbank_set(pwm, PWM); |
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| 143 | | -lm3533_ctrlbank_get(pwm, PWM); |
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| 129 | +int lm3533_ctrlbank_set_pwm(struct lm3533_ctrlbank *cb, u8 val) |
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| 130 | +{ |
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| 131 | + u8 reg; |
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| 132 | + int ret; |
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| 144 | 133 | |
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| 134 | + if (val > LM3533_PWM_MAX) |
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| 135 | + return -EINVAL; |
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| 136 | + |
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| 137 | + reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_PWM_BASE); |
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| 138 | + ret = lm3533_write(cb->lm3533, reg, val); |
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| 139 | + if (ret) |
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| 140 | + dev_err(cb->dev, "failed to set PWM mask\n"); |
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| 141 | + |
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| 142 | + return ret; |
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| 143 | +} |
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| 144 | +EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_pwm); |
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| 145 | + |
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| 146 | +int lm3533_ctrlbank_get_pwm(struct lm3533_ctrlbank *cb, u8 *val) |
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| 147 | +{ |
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| 148 | + u8 reg; |
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| 149 | + int ret; |
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| 150 | + |
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| 151 | + reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_PWM_BASE); |
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| 152 | + ret = lm3533_read(cb->lm3533, reg, val); |
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| 153 | + if (ret) |
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| 154 | + dev_err(cb->dev, "failed to get PWM mask\n"); |
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| 155 | + |
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| 156 | + return ret; |
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| 157 | +} |
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| 158 | +EXPORT_SYMBOL_GPL(lm3533_ctrlbank_get_pwm); |
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| 145 | 159 | |
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| 146 | 160 | MODULE_AUTHOR("Johan Hovold <jhovold@gmail.com>"); |
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| 147 | 161 | MODULE_DESCRIPTION("LM3533 Control Bank interface"); |
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