2 * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved.
6 * The code contained herein is licensed under the GNU General Public
7 * License. You may obtain a copy of the GNU General Public License
8 * Version 2 or later at the following locations:
10 * http://www.opensource.org/licenses/gpl-license.html
11 * http://www.gnu.org/copyleft/gpl.html
14 #include <linux/init.h>
15 #include <linux/ipu.h>
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/mxcfb.h>
19 #include <linux/of_device.h>
20 #include <linux/platform_device.h>
21 #include <video/of_display_timing.h>
22 #include <video/of_videomode.h>
23 #include <video/videomode.h>
25 #include "mxc_dispdrv.h"
27 struct mxc_lcd_platform_data {
31 enum display_flags disp_flags;
34 struct mxc_lcdif_data {
36 struct mxc_dispdrv_handle *disp_lcdif;
39 #define DISPDRV_LCD "lcd"
41 static struct fb_videomode lcdif_modedb[] = {
43 /* 800x480 @ 57 Hz , pixel clk @ 27MHz */
44 "CLAA-WVGA", 57, 800, 480, 37037, 40, 60, 10, 10, 20, 10,
46 FB_VMODE_NONINTERLACED,
50 /* 800x480 @ 60 Hz , pixel clk @ 32MHz */
51 "SEIKO-WVGA", 60, 800, 480, 29850, 89, 164, 23, 10, 10, 10,
53 FB_VMODE_NONINTERLACED,
58 .pixclock = KHZ2PICOS(25200),
70 .pixclock = KHZ2PICOS(25200),
82 .pixclock = KHZ2PICOS(6413760 / 1000),
94 .pixclock = KHZ2PICOS(9009),
103 .sync = FB_SYNC_CLK_LAT_FALL,
107 .pixclock = KHZ2PICOS(33264),
118 .name = "ET0700", /* same as ET0500 */
119 .pixclock = KHZ2PICOS(33264),
131 .pixclock = KHZ2PICOS(6596040 / 1000),
142 static int lcdif_modedb_sz = ARRAY_SIZE(lcdif_modedb);
144 static int lcdif_init(struct mxc_dispdrv_handle *disp,
145 struct mxc_dispdrv_setting *setting)
148 struct mxc_lcdif_data *lcdif = mxc_dispdrv_getdata(disp);
149 struct mxc_lcd_platform_data *plat_data = lcdif->dev->platform_data;
150 struct fb_videomode *modedb = lcdif_modedb;
151 int modedb_sz = lcdif_modedb_sz;
153 /* use platform defined ipu/di */
154 setting->dev_id = plat_data->ipu_id;
155 setting->disp_id = plat_data->disp_id;
157 if (setting->fbmode) {
158 modedb[0] = *setting->fbmode;
161 setting->disp_flags = plat_data->disp_flags;
164 ret = fb_find_mode(&setting->fbi->var, setting->fbi, setting->dft_mode_str,
165 modedb, modedb_sz, NULL, setting->default_bpp);
167 fb_videomode_to_var(&setting->fbi->var, &modedb[0]);
168 setting->if_fmt = plat_data->default_ifmt;
171 INIT_LIST_HEAD(&setting->fbi->modelist);
172 for (i = 0; i < modedb_sz; i++) {
173 struct fb_videomode m;
174 fb_var_to_videomode(&m, &setting->fbi->var);
175 if (fb_mode_is_equal(&m, &modedb[i])) {
176 fb_add_videomode(&modedb[i],
177 &setting->fbi->modelist);
185 void lcdif_deinit(struct mxc_dispdrv_handle *disp)
190 static struct mxc_dispdrv_driver lcdif_drv = {
193 .deinit = lcdif_deinit,
196 static int lcd_get_of_property(struct device *dev,
197 struct mxc_lcd_platform_data *plat_data)
199 struct device_node *np = dev->of_node;
202 const char *default_ifmt;
204 err = of_property_read_string(np, "default_ifmt", &default_ifmt);
206 dev_err(dev, "get of property default_ifmt fail\n");
209 err = of_property_read_u32(np, "ipu_id", &ipu_id);
211 dev_err(dev, "get of property ipu_id fail\n");
214 err = of_property_read_u32(np, "disp_id", &disp_id);
216 dev_err(dev, "get of property disp_id fail\n");
220 plat_data->ipu_id = ipu_id;
221 plat_data->disp_id = disp_id;
222 if (!strncmp(default_ifmt, "RGB24", 5))
223 plat_data->default_ifmt = IPU_PIX_FMT_RGB24;
224 else if (!strncmp(default_ifmt, "BGR24", 5))
225 plat_data->default_ifmt = IPU_PIX_FMT_BGR24;
226 else if (!strncmp(default_ifmt, "GBR24", 5))
227 plat_data->default_ifmt = IPU_PIX_FMT_GBR24;
228 else if (!strncmp(default_ifmt, "RGB565", 6))
229 plat_data->default_ifmt = IPU_PIX_FMT_RGB565;
230 else if (!strncmp(default_ifmt, "RGB666", 6))
231 plat_data->default_ifmt = IPU_PIX_FMT_RGB666;
232 else if (!strncmp(default_ifmt, "YUV444", 6))
233 plat_data->default_ifmt = IPU_PIX_FMT_YUV444;
234 else if (!strncmp(default_ifmt, "LVDS666", 7))
235 plat_data->default_ifmt = IPU_PIX_FMT_LVDS666;
236 else if (!strncmp(default_ifmt, "YUYV16", 6))
237 plat_data->default_ifmt = IPU_PIX_FMT_YUYV;
238 else if (!strncmp(default_ifmt, "UYVY16", 6))
239 plat_data->default_ifmt = IPU_PIX_FMT_UYVY;
240 else if (!strncmp(default_ifmt, "YVYU16", 6))
241 plat_data->default_ifmt = IPU_PIX_FMT_YVYU;
242 else if (!strncmp(default_ifmt, "VYUY16", 6))
243 plat_data->default_ifmt = IPU_PIX_FMT_VYUY;
245 dev_err(dev, "err default_ifmt!\n");
252 static int mxc_lcdif_probe(struct platform_device *pdev)
255 struct mxc_lcdif_data *lcdif;
256 struct mxc_lcd_platform_data *plat_data;
258 dev_dbg(&pdev->dev, "%s enter\n", __func__);
259 lcdif = devm_kzalloc(&pdev->dev, sizeof(struct mxc_lcdif_data),
263 plat_data = devm_kzalloc(&pdev->dev,
264 sizeof(struct mxc_lcd_platform_data),
268 pdev->dev.platform_data = plat_data;
270 ret = lcd_get_of_property(&pdev->dev, plat_data);
272 dev_err(&pdev->dev, "get lcd of property fail\n");
276 lcdif->dev = &pdev->dev;
277 lcdif->disp_lcdif = mxc_dispdrv_register(&lcdif_drv);
278 mxc_dispdrv_setdata(lcdif->disp_lcdif, lcdif);
280 dev_set_drvdata(&pdev->dev, lcdif);
281 dev_dbg(&pdev->dev, "%s exit\n", __func__);
286 static int mxc_lcdif_remove(struct platform_device *pdev)
288 struct mxc_lcdif_data *lcdif = platform_get_drvdata(pdev);
290 mxc_dispdrv_puthandle(lcdif->disp_lcdif);
291 mxc_dispdrv_unregister(lcdif->disp_lcdif);
296 static const struct of_device_id imx_lcd_dt_ids[] = {
297 { .compatible = "fsl,lcd"},
300 static struct platform_driver mxc_lcdif_driver = {
303 .of_match_table = imx_lcd_dt_ids,
305 .probe = mxc_lcdif_probe,
306 .remove = mxc_lcdif_remove,
309 static int __init mxc_lcdif_init(void)
311 return platform_driver_register(&mxc_lcdif_driver);
314 static void __exit mxc_lcdif_exit(void)
316 platform_driver_unregister(&mxc_lcdif_driver);
319 module_init(mxc_lcdif_init);
320 module_exit(mxc_lcdif_exit);
322 MODULE_AUTHOR("Freescale Semiconductor, Inc.");
323 MODULE_DESCRIPTION("i.MX ipuv3 LCD extern port driver");
324 MODULE_LICENSE("GPL");