diff options
author | arun c <arun.edarath@gmail.com> | 2009-09-22 19:46:47 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 10:39:49 -0400 |
commit | 42acff34f85c5892c8c762145441e993a5596a13 (patch) | |
tree | 03c0623f72891acd5b24baa96c186ce65201cc6c /drivers/video/omap | |
parent | 3a76a819dda9a6de0ab83d04b48b3735a4d10b89 (diff) |
omapfb: add support for the OMAP2EVM LCD
omap2evm LCD supports VGA and QVGA resolution, by default its in VGA mode.
Fixed-by: Jarkko Nikula <jarkko.nikula@gmail.com>
Fixed-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Arun C <arunedarath@mistralsolutions.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/omap')
-rw-r--r-- | drivers/video/omap/Makefile | 1 | ||||
-rw-r--r-- | drivers/video/omap/lcd_omap2evm.c | 191 |
2 files changed, 192 insertions, 0 deletions
diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile index 7a37b0396e97..c2475e34424c 100644 --- a/drivers/video/omap/Makefile +++ b/drivers/video/omap/Makefile | |||
@@ -27,6 +27,7 @@ objs-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o | |||
27 | 27 | ||
28 | objs-y$(CONFIG_MACH_OMAP_APOLLON) += lcd_apollon.o | 28 | objs-y$(CONFIG_MACH_OMAP_APOLLON) += lcd_apollon.o |
29 | objs-y$(CONFIG_MACH_OMAP_2430SDP) += lcd_2430sdp.o | 29 | objs-y$(CONFIG_MACH_OMAP_2430SDP) += lcd_2430sdp.o |
30 | objs-y$(CONFIG_MACH_OMAP2EVM) += lcd_omap2evm.o | ||
30 | objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o | 31 | objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o |
31 | 32 | ||
32 | omapfb-objs := $(objs-yy) | 33 | omapfb-objs := $(objs-yy) |
diff --git a/drivers/video/omap/lcd_omap2evm.c b/drivers/video/omap/lcd_omap2evm.c new file mode 100644 index 000000000000..7a2bbe2ecec3 --- /dev/null +++ b/drivers/video/omap/lcd_omap2evm.c | |||
@@ -0,0 +1,191 @@ | |||
1 | /* | ||
2 | * LCD panel support for the MISTRAL OMAP2EVM board | ||
3 | * | ||
4 | * Author: Arun C <arunedarath@mistralsolutions.com> | ||
5 | * | ||
6 | * Derived from drivers/video/omap/lcd_omap3evm.c | ||
7 | * Derived from drivers/video/omap/lcd-apollon.c | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify it | ||
10 | * under the terms of the GNU General Public License as published by the | ||
11 | * Free Software Foundation; either version 2 of the License, or (at your | ||
12 | * option) any later version. | ||
13 | * | ||
14 | * This program is distributed in the hope that it will be useful, but | ||
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
17 | * General Public License for more details. | ||
18 | * | ||
19 | * You should have received a copy of the GNU General Public License along | ||
20 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
21 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
22 | */ | ||
23 | |||
24 | #include <linux/module.h> | ||
25 | #include <linux/platform_device.h> | ||
26 | #include <linux/gpio.h> | ||
27 | #include <linux/i2c/twl4030.h> | ||
28 | |||
29 | #include <mach/mux.h> | ||
30 | #include <mach/omapfb.h> | ||
31 | #include <asm/mach-types.h> | ||
32 | |||
33 | #define LCD_PANEL_ENABLE_GPIO 154 | ||
34 | #define LCD_PANEL_LR 128 | ||
35 | #define LCD_PANEL_UD 129 | ||
36 | #define LCD_PANEL_INI 152 | ||
37 | #define LCD_PANEL_QVGA 148 | ||
38 | #define LCD_PANEL_RESB 153 | ||
39 | |||
40 | #define TWL_LED_LEDEN 0x00 | ||
41 | #define TWL_PWMA_PWMAON 0x00 | ||
42 | #define TWL_PWMA_PWMAOFF 0x01 | ||
43 | |||
44 | static unsigned int bklight_level; | ||
45 | |||
46 | static int omap2evm_panel_init(struct lcd_panel *panel, | ||
47 | struct omapfb_device *fbdev) | ||
48 | { | ||
49 | gpio_request(LCD_PANEL_ENABLE_GPIO, "LCD enable"); | ||
50 | gpio_request(LCD_PANEL_LR, "LCD lr"); | ||
51 | gpio_request(LCD_PANEL_UD, "LCD ud"); | ||
52 | gpio_request(LCD_PANEL_INI, "LCD ini"); | ||
53 | gpio_request(LCD_PANEL_QVGA, "LCD qvga"); | ||
54 | gpio_request(LCD_PANEL_RESB, "LCD resb"); | ||
55 | |||
56 | gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 1); | ||
57 | gpio_direction_output(LCD_PANEL_RESB, 1); | ||
58 | gpio_direction_output(LCD_PANEL_INI, 1); | ||
59 | gpio_direction_output(LCD_PANEL_QVGA, 0); | ||
60 | gpio_direction_output(LCD_PANEL_LR, 1); | ||
61 | gpio_direction_output(LCD_PANEL_UD, 1); | ||
62 | |||
63 | twl4030_i2c_write_u8(TWL4030_MODULE_LED, 0x11, TWL_LED_LEDEN); | ||
64 | twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x01, TWL_PWMA_PWMAON); | ||
65 | twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x02, TWL_PWMA_PWMAOFF); | ||
66 | bklight_level = 100; | ||
67 | |||
68 | return 0; | ||
69 | } | ||
70 | |||
71 | static void omap2evm_panel_cleanup(struct lcd_panel *panel) | ||
72 | { | ||
73 | gpio_free(LCD_PANEL_RESB); | ||
74 | gpio_free(LCD_PANEL_QVGA); | ||
75 | gpio_free(LCD_PANEL_INI); | ||
76 | gpio_free(LCD_PANEL_UD); | ||
77 | gpio_free(LCD_PANEL_LR); | ||
78 | gpio_free(LCD_PANEL_ENABLE_GPIO); | ||
79 | } | ||
80 | |||
81 | static int omap2evm_panel_enable(struct lcd_panel *panel) | ||
82 | { | ||
83 | gpio_set_value(LCD_PANEL_ENABLE_GPIO, 0); | ||
84 | return 0; | ||
85 | } | ||
86 | |||
87 | static void omap2evm_panel_disable(struct lcd_panel *panel) | ||
88 | { | ||
89 | gpio_set_value(LCD_PANEL_ENABLE_GPIO, 1); | ||
90 | } | ||
91 | |||
92 | static unsigned long omap2evm_panel_get_caps(struct lcd_panel *panel) | ||
93 | { | ||
94 | return 0; | ||
95 | } | ||
96 | |||
97 | static int omap2evm_bklight_setlevel(struct lcd_panel *panel, | ||
98 | unsigned int level) | ||
99 | { | ||
100 | u8 c; | ||
101 | if ((level >= 0) && (level <= 100)) { | ||
102 | c = (125 * (100 - level)) / 100 + 2; | ||
103 | twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, c, TWL_PWMA_PWMAOFF); | ||
104 | bklight_level = level; | ||
105 | } | ||
106 | return 0; | ||
107 | } | ||
108 | |||
109 | static unsigned int omap2evm_bklight_getlevel(struct lcd_panel *panel) | ||
110 | { | ||
111 | return bklight_level; | ||
112 | } | ||
113 | |||
114 | static unsigned int omap2evm_bklight_getmaxlevel(struct lcd_panel *panel) | ||
115 | { | ||
116 | return 100; | ||
117 | } | ||
118 | |||
119 | struct lcd_panel omap2evm_panel = { | ||
120 | .name = "omap2evm", | ||
121 | .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | | ||
122 | OMAP_LCDC_INV_HSYNC, | ||
123 | |||
124 | .bpp = 16, | ||
125 | .data_lines = 18, | ||
126 | .x_res = 480, | ||
127 | .y_res = 640, | ||
128 | .hsw = 3, | ||
129 | .hfp = 0, | ||
130 | .hbp = 28, | ||
131 | .vsw = 2, | ||
132 | .vfp = 1, | ||
133 | .vbp = 0, | ||
134 | |||
135 | .pixel_clock = 20000, | ||
136 | |||
137 | .init = omap2evm_panel_init, | ||
138 | .cleanup = omap2evm_panel_cleanup, | ||
139 | .enable = omap2evm_panel_enable, | ||
140 | .disable = omap2evm_panel_disable, | ||
141 | .get_caps = omap2evm_panel_get_caps, | ||
142 | .set_bklight_level = omap2evm_bklight_setlevel, | ||
143 | .get_bklight_level = omap2evm_bklight_getlevel, | ||
144 | .get_bklight_max = omap2evm_bklight_getmaxlevel, | ||
145 | }; | ||
146 | |||
147 | static int omap2evm_panel_probe(struct platform_device *pdev) | ||
148 | { | ||
149 | omapfb_register_panel(&omap2evm_panel); | ||
150 | return 0; | ||
151 | } | ||
152 | |||
153 | static int omap2evm_panel_remove(struct platform_device *pdev) | ||
154 | { | ||
155 | return 0; | ||
156 | } | ||
157 | |||
158 | static int omap2evm_panel_suspend(struct platform_device *pdev, | ||
159 | pm_message_t mesg) | ||
160 | { | ||
161 | return 0; | ||
162 | } | ||
163 | |||
164 | static int omap2evm_panel_resume(struct platform_device *pdev) | ||
165 | { | ||
166 | return 0; | ||
167 | } | ||
168 | |||
169 | struct platform_driver omap2evm_panel_driver = { | ||
170 | .probe = omap2evm_panel_probe, | ||
171 | .remove = omap2evm_panel_remove, | ||
172 | .suspend = omap2evm_panel_suspend, | ||
173 | .resume = omap2evm_panel_resume, | ||
174 | .driver = { | ||
175 | .name = "omap2evm_lcd", | ||
176 | .owner = THIS_MODULE, | ||
177 | }, | ||
178 | }; | ||
179 | |||
180 | static int __init omap2evm_panel_drv_init(void) | ||
181 | { | ||
182 | return platform_driver_register(&omap2evm_panel_driver); | ||
183 | } | ||
184 | |||
185 | static void __exit omap2evm_panel_drv_exit(void) | ||
186 | { | ||
187 | platform_driver_unregister(&omap2evm_panel_driver); | ||
188 | } | ||
189 | |||
190 | module_init(omap2evm_panel_drv_init); | ||
191 | module_exit(omap2evm_panel_drv_exit); | ||