hd44780.c (b26deabb1d915fe87d395081bbd3058b938dee89) hd44780.c (d3a2fb810f273b7a2c393d4de28ae91a3f76985d)
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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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,
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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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,
130 .gotoxy = hd44780_common_gotoxy,
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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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,
131};
132
133/* Send a command to the LCD panel in 4 bit GPIO mode */
134static void hd44780_write_cmd_gpio4(struct hd44780_common *hdc, int cmd)
135{
136 struct hd44780 *hd = hdc->hd44780;
137
138 hd44780_write_gpio4(hd, cmd, 0);

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167
168 /* The shortest data takes at least 45 us */
169 udelay(45);
170}
171
172static const struct charlcd_ops hd44780_ops_gpio4 = {
173 .backlight = hd44780_backlight,
174 .print = hd44780_common_print,
175 .gotoxy = hd44780_common_gotoxy,
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;

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

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