2 * File: drivers/video/omap/lcd-p2.c
4 * LCD panel support for the TI OMAP P2 board
7 * jekyll <jekyll@mail.jekyll.idv.tw>
8 * B Jp <lastjp_fr@yahoo.fr>
9 * Brian Swetland <swetland@android.com>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public License along
22 * with this program; if not, write to the Free Software Foundation, Inc.,
23 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 #include <linux/module.h>
27 #include <linux/delay.h>
28 #include <linux/platform_device.h>
30 #include <asm/arch/mux.h>
31 #include <asm/arch/gpio.h>
32 #include <asm/arch/omapfb.h>
35 * File: epson-md-tft.h
37 * This file contains definitions for Epsons MD-TF LCD Module
39 * Copyright (C) 2004 MPC-Data Limited (http://www.mpc-data.co.uk)
40 * Author: Dave Peverley <dpeverley at mpc-data.co.uk>
42 * This program is free software; you can redistribute it and/or modify it
43 * under the terms of the GNU General Public License as published by the
44 * Free Software Foundation; either version 2 of the License, or (at your
45 * option) any later version.
47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
48 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
49 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
50 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
52 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
53 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
54 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
55 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
56 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
58 * You should have received a copy of the GNU General Public License along
59 * with this program; if not, write to the Free Software Foundation, Inc.,
60 * 675 Mass Ave, Cambridge, MA 02139, USA.
62 * Please report all bugs and problems to the author.
66 /* LCD uWire commands & params
67 * All values from Epson
69 #define LCD_DISON 0xAF
70 #define LCD_DISOFF 0xAE
71 #define LCD_DISNOR 0xA6
72 #define LCD_DISINV 0xA7
73 #define LCD_DISCTL 0xCA
74 #define LCD_GCP64 0xCB
75 #define LCD_GCP16 0xCC
76 #define LCD_GSSET 0xCD
77 #define LCD_SLPIN 0x95
78 #define LCD_SLPOUT 0x94
79 #define LCD_SD_PSET 0x75
80 #define LCD_MD_PSET 0x76
81 #define LCD_SD_CSET 0x15
82 #define LCD_MD_CSET 0x16
83 #define LCD_DATCTL 0xBC
84 #define LCD_RAMWR 0x5C
85 #define LCD_RAMRD 0x5D
86 #define LCD_PTLIN 0xA8
87 #define LCD_PTLOUT 0xA9
88 #define LCD_ASCSET 0xAA
89 #define LCD_SCSTART 0xAB
90 #define LCD_VOLCTL 0xC6
92 #define LCD_OSCISEL 0x7
93 #define LCD_3500KSET 0xD1
94 #define LCD_3500KEND 0xD2
95 #define LCD_14MSET 0xD3
96 #define LCD_14MEND 0xD4
98 #define INIT_3500KSET 0x45
99 #define INIT_14MSET 0x4B
100 #define INIT_DATCTL 0x08 /* 6.6.6 bits for D-Sample */
102 #define INIT_OSCISEL 0x05
104 #define INIT_VOLCTL 0x77 /* Nominel "volume" */
106 #define INIT_VOLCTL_Ton 0x98 /* Activate power-IC timer */
107 #define INIT_GSSET 0x00
109 const unsigned short INIT_DISCTL[11] =
111 0xDE, 0x01, 0x64, 0x00, 0x1B, 0xF4, 0x00, 0xDC, 0x00, 0x02, 0x00
114 const unsigned short INIT_GCP64[126] =
116 0x3B,0x00,0x42,0x00,0x4A,0x00,0x51,0x00,
117 0x58,0x00,0x5F,0x00,0x66,0x00,0x6E,0x00,
118 0x75,0x00,0x7C,0x00,0x83,0x00,0x8A,0x00,
119 0x92,0x00,0x99,0x00,0xA0,0x00,0xA7,0x00,
120 0xAE,0x00,0xB6,0x00,0xBD,0x00,0xC4,0x00,
121 0xCB,0x00,0xD2,0x00,0xDA,0x00,0xE1,0x00,
122 0xE8,0x00,0xEF,0x00,0xF6,0x00,0xFE,0x00,
123 0x05,0x01,0x0C,0x01,0x13,0x01,0x1A,0x01,
124 0x22,0x01,0x29,0x01,0x30,0x01,0x37,0x01,
125 0x3E,0x01,0x46,0x01,0x4D,0x01,0x54,0x01,
126 0x5B,0x01,0x62,0x01,0x6A,0x01,0x71,0x01,
127 0x78,0x01,0x7F,0x01,0x86,0x01,0x8E,0x01,
128 0x95,0x01,0x9C,0x01,0xA3,0x01,0xAA,0x01,
129 0xB2,0x01,0xB9,0x01,0xC0,0x01,0xC7,0x01,
130 0xCE,0x01,0xD6,0x01,0xDD,0x01,0xE4,0x01,
131 0xEB,0x01,0xF2,0x01,0xFA,0x01
134 const unsigned short INIT_GCP16[15] =
136 0x1A,0x31,0x48,0x54,0x5F,0x67,0x70,0x76,0x7C,0x80,0x83,0x84,0x85,0x87,0x96
139 const unsigned short INIT_MD_PSET[4] = { 0, 0, 219, 0 };
140 const unsigned short INIT_MD_CSET[4] = { 2, 0, 177, 0 };
142 const unsigned short INIT_SD_PSET[4] = { 0x00, 0x01, 0x00, 0x01 };
143 const unsigned short INIT_SD_CSET[4] = { 0x00, 0x02, 0x00, 0x02 };
145 const unsigned short INIT_ASCSET[7] = { 0x00, 0x00, 0xDB, 0x00, 0xDC, 0x00, 0x01 };
146 const unsigned short INIT_SCSTART[2] = { 0x00, 0x00 };
148 /* ----- end of epson_md_tft.h ----- */
151 #include "../drivers/ssi/omap-uwire.h"
153 #define LCD_UWIRE_CS 0
155 static int p2_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
160 static void p2_panel_cleanup(struct lcd_panel *panel)
164 static int p2_panel_enable(struct lcd_panel *panel)
169 /* thwack the reset line */
170 omap_set_gpio_direction(19, 0);
171 omap_set_gpio_dataout(19, 0);
173 omap_set_gpio_dataout(19, 1);
175 /* bits 31:28 -> 0 LCD_PXL_15 .. 12 */
176 value = omap_readl(OMAP730_IO_CONF_3) & 0x0FFFFFFF;
177 omap_writel(value, OMAP730_IO_CONF_3);
179 /* bits 19:0 -> 0 LCD_VSYNC, AC, PXL_0, PCLK, HSYNC,
180 ** PXL_9..1, PXL_10, PXL_11
182 value = omap_readl(OMAP730_IO_CONF_4) & 0xFFF00000;
183 omap_writel(value, OMAP730_IO_CONF_4);
185 omap_uwire_configure_mode(0,16);
187 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISOFF, 9, 0,NULL,1);
188 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SLPIN, 9, 0,NULL,1);
189 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISNOR, 9, 0,NULL,1);
190 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_GSSET, 9, 0,NULL,1);
191 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_GSSET | 0x100), 9, 0,NULL,1);
194 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISCTL, 9, 0,NULL,1);
195 for (i = 0; i < (sizeof(INIT_DISCTL)/sizeof(unsigned short)); i++)
196 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_DISCTL[i] | 0x100), 9, 0,NULL,1);
199 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_GCP64, 9, 0,NULL,1);
200 for (i = 0; i < (sizeof(INIT_GCP64)/sizeof(unsigned short)); i++)
201 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_GCP64[i] | 0x100), 9, 0,NULL,1);
204 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_GCP16, 9, 0,NULL,1);
205 for (i = 0; i < (sizeof(INIT_GCP16)/sizeof(unsigned short)); i++)
206 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_GCP16[i] | 0x100), 9, 0,NULL,1);
209 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_MD_CSET, 9, 0,NULL,1);
210 for (i = 0; i < (sizeof(INIT_MD_CSET)/sizeof(unsigned short)); i++)
211 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_MD_CSET[i] | 0x100), 9, 0,NULL,1);
214 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_MD_PSET, 9, 0,NULL,1);
215 for (i = 0; i < (sizeof(INIT_MD_PSET)/sizeof(unsigned short)); i++)
216 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_MD_PSET[i] | 0x100), 9, 0,NULL,1);
219 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SD_CSET, 9, 0,NULL,1);
220 for (i = 0; i < (sizeof(INIT_SD_CSET)/sizeof(unsigned short)); i++)
221 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_SD_CSET[i] | 0x100), 9, 0,NULL,1);
224 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SD_PSET, 9, 0,NULL,1);
225 for (i = 0; i < (sizeof(INIT_SD_PSET)/sizeof(unsigned short)); i++)
226 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_SD_PSET[i] | 0x100), 9, 0,NULL,1);
229 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DATCTL, 9, 0,NULL,1);
230 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_DATCTL | 0x100), 9, 0,NULL,1);
233 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_OSCISEL, 9, 0,NULL,1);
234 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_OSCISEL | 0x100), 9, 0,NULL,1);
237 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_14MSET, 9, 0,NULL,1);
238 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_14MSET | 0x100), 9, 0,NULL,1);
241 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_14MEND, 9, 0,NULL,1);
243 /* 3500KSET = d'69 */
244 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_3500KSET, 9, 0,NULL,1);
245 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_3500KSET | 0x100), 9, 0,NULL,1);
248 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_3500KEND, 9, 0,NULL,1);
250 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_SLPOUT, 9, 0,NULL,1);
252 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_VOLCTL, 9, 0,NULL,1);
253 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_VOLCTL_Ton | 0x100), 9, 0,NULL,1);
255 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_VOLCTL, 9, 0,NULL,1);
257 omap_uwire_data_transfer(LCD_UWIRE_CS, (INIT_VOLCTL | 0x100), 9, 0,NULL,1);
259 omap_uwire_data_transfer(LCD_UWIRE_CS, LCD_DISON, 9, 0,NULL,1);
261 /* enable backlight */
262 omap_set_gpio_direction(134, 0);
263 omap_set_gpio_dataout(134, 1);
268 static void p2_panel_disable(struct lcd_panel *panel)
272 static unsigned long p2_panel_get_caps(struct lcd_panel *panel)
277 struct lcd_panel p2_panel = {
279 .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_PIX_CLOCK,
285 .pixel_clock = 12500,
293 .init = p2_panel_init,
294 .cleanup = p2_panel_cleanup,
295 .enable = p2_panel_enable,
296 .disable = p2_panel_disable,
297 .get_caps = p2_panel_get_caps,
300 static int p2_panel_probe(struct platform_device *pdev)
302 omapfb_register_panel(&p2_panel);
306 static int p2_panel_remove(struct platform_device *pdev)
311 static int p2_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
316 static int p2_panel_resume(struct platform_device *pdev)
321 struct platform_driver p2_panel_driver = {
322 .probe = p2_panel_probe,
323 .remove = p2_panel_remove,
324 .suspend = p2_panel_suspend,
325 .resume = p2_panel_resume,
328 .owner = THIS_MODULE,
332 static int p2_panel_drv_init(void)
334 return platform_driver_register(&p2_panel_driver);
337 static void p2_panel_drv_cleanup(void)
339 platform_driver_unregister(&p2_panel_driver);
342 module_init(p2_panel_drv_init);
343 module_exit(p2_panel_drv_cleanup);