1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * LCD panel support for the TI OMAP1610 Innovator board
4 *
5 * Copyright (C) 2004 Nokia Corporation
6 * Author: Imre Deak <imre.deak@nokia.com>
7 */
8
9 #include <linux/module.h>
10 #include <linux/platform_device.h>
11
12 #include <linux/gpio.h>
13 #include "omapfb.h"
14
15 #define MODULE_NAME "omapfb-lcd_h3"
16
innovator1610_panel_init(struct lcd_panel * panel,struct omapfb_device * fbdev)17 static int innovator1610_panel_init(struct lcd_panel *panel,
18 struct omapfb_device *fbdev)
19 {
20 int r = 0;
21
22 /* configure GPIO(14, 15) as outputs */
23 if (gpio_request_one(14, GPIOF_OUT_INIT_LOW, "lcd_en0")) {
24 pr_err(MODULE_NAME ": can't request GPIO 14\n");
25 r = -1;
26 goto exit;
27 }
28 if (gpio_request_one(15, GPIOF_OUT_INIT_LOW, "lcd_en1")) {
29 pr_err(MODULE_NAME ": can't request GPIO 15\n");
30 gpio_free(14);
31 r = -1;
32 goto exit;
33 }
34 exit:
35 return r;
36 }
37
innovator1610_panel_cleanup(struct lcd_panel * panel)38 static void innovator1610_panel_cleanup(struct lcd_panel *panel)
39 {
40 gpio_free(15);
41 gpio_free(14);
42 }
43
innovator1610_panel_enable(struct lcd_panel * panel)44 static int innovator1610_panel_enable(struct lcd_panel *panel)
45 {
46 /* set GPIO14 and GPIO15 high */
47 gpio_set_value(14, 1);
48 gpio_set_value(15, 1);
49 return 0;
50 }
51
innovator1610_panel_disable(struct lcd_panel * panel)52 static void innovator1610_panel_disable(struct lcd_panel *panel)
53 {
54 /* set GPIO13, GPIO14 and GPIO15 low */
55 gpio_set_value(14, 0);
56 gpio_set_value(15, 0);
57 }
58
59 static struct lcd_panel innovator1610_panel = {
60 .name = "inn1610",
61 .config = OMAP_LCDC_PANEL_TFT,
62
63 .bpp = 16,
64 .data_lines = 16,
65 .x_res = 320,
66 .y_res = 240,
67 .pixel_clock = 12500,
68 .hsw = 40,
69 .hfp = 40,
70 .hbp = 72,
71 .vsw = 1,
72 .vfp = 1,
73 .vbp = 0,
74 .pcd = 12,
75
76 .init = innovator1610_panel_init,
77 .cleanup = innovator1610_panel_cleanup,
78 .enable = innovator1610_panel_enable,
79 .disable = innovator1610_panel_disable,
80 };
81
innovator1610_panel_probe(struct platform_device * pdev)82 static int innovator1610_panel_probe(struct platform_device *pdev)
83 {
84 omapfb_register_panel(&innovator1610_panel);
85 return 0;
86 }
87
88 static struct platform_driver innovator1610_panel_driver = {
89 .probe = innovator1610_panel_probe,
90 .driver = {
91 .name = "lcd_inn1610",
92 },
93 };
94
95 module_platform_driver(innovator1610_panel_driver);
96
97 MODULE_AUTHOR("Imre Deak");
98 MODULE_DESCRIPTION("LCD panel support for the TI OMAP1610 Innovator board");
99 MODULE_LICENSE("GPL");
100
