hd44780.c (2c6a82f2342fadfcbd5dd92656e662c326f7a40a) hd44780.c (b26deabb1d915fe87d395081bbd3058b938dee89)
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * HD44780 Character LCD driver for Linux
4 *
5 * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
6 * Copyright (C) 2016-2017 Glider bvba
7 */
8

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121 hd44780_write_gpio8(hd, data, 1);
122
123 /* The shortest data takes at least 45 us */
124 udelay(45);
125}
126
127static const struct charlcd_ops hd44780_ops_gpio8 = {
128 .backlight = hd44780_backlight,
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * HD44780 Character LCD driver for Linux
4 *
5 * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
6 * Copyright (C) 2016-2017 Glider bvba
7 */
8

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121 hd44780_write_gpio8(hd, data, 1);
122
123 /* The shortest data takes at least 45 us */
124 udelay(45);
125}
126
127static const struct charlcd_ops hd44780_ops_gpio8 = {
128 .backlight = hd44780_backlight,
129 .print = hd44780_common_print,
129};
130
131/* Send a command to the LCD panel in 4 bit GPIO mode */
132static void hd44780_write_cmd_gpio4(struct hd44780_common *hdc, int cmd)
133{
134 struct hd44780 *hd = hdc->hd44780;
135
136 hd44780_write_gpio4(hd, cmd, 0);

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164 hd44780_write_gpio4(hd, data, 1);
165
166 /* The shortest data takes at least 45 us */
167 udelay(45);
168}
169
170static const struct charlcd_ops hd44780_ops_gpio4 = {
171 .backlight = hd44780_backlight,
130};
131
132/* Send a command to the LCD panel in 4 bit GPIO mode */
133static void hd44780_write_cmd_gpio4(struct hd44780_common *hdc, int cmd)
134{
135 struct hd44780 *hd = hdc->hd44780;
136
137 hd44780_write_gpio4(hd, cmd, 0);

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165 hd44780_write_gpio4(hd, data, 1);
166
167 /* The shortest data takes at least 45 us */
168 udelay(45);
169}
170
171static const struct charlcd_ops hd44780_ops_gpio4 = {
172 .backlight = hd44780_backlight,
173 .print = hd44780_common_print,
172};
173
174static int hd44780_probe(struct platform_device *pdev)
175{
176 struct device *dev = &pdev->dev;
177 unsigned int i, base;
178 struct charlcd *lcd;
179 struct hd44780_common *hdc;

--- 146 unchanged lines hidden --- 		174};
175
176static int hd44780_probe(struct platform_device *pdev)
177{
178 struct device *dev = &pdev->dev;
179 unsigned int i, base;
180 struct charlcd *lcd;
181 struct hd44780_common *hdc;

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