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/pinctrl/consumer.h>
21 #include <linux/platform_device.h>
23 #include "mxc_dispdrv.h"
25 struct mxc_lcd_platform_data {
31 struct mxc_lcdif_data {
32 struct platform_device *pdev;
33 struct mxc_dispdrv_handle *disp_lcdif;
36 #define DISPDRV_LCD "lcd"
38 static struct fb_videomode lcdif_modedb[] = {
40 /* 800x480 @ 57 Hz , pixel clk @ 27MHz */
41 "CLAA-WVGA", 57, 800, 480, 37037, 40, 60, 10, 10, 20, 10,
43 FB_VMODE_NONINTERLACED,
47 /* 800x480 @ 60 Hz , pixel clk @ 32MHz */
48 "SEIKO-WVGA", 60, 800, 480, 29850, 89, 164, 23, 10, 10, 10,
50 FB_VMODE_NONINTERLACED,
54 static int lcdif_modedb_sz = ARRAY_SIZE(lcdif_modedb);
56 static int lcdif_init(struct mxc_dispdrv_handle *disp,
57 struct mxc_dispdrv_setting *setting)
60 struct mxc_lcdif_data *lcdif = mxc_dispdrv_getdata(disp);
61 struct mxc_lcd_platform_data *plat_data
62 = lcdif->pdev->dev.platform_data;
63 struct fb_videomode *modedb = lcdif_modedb;
64 int modedb_sz = lcdif_modedb_sz;
66 /* use platform defined ipu/di */
67 setting->dev_id = plat_data->ipu_id;
68 setting->disp_id = plat_data->disp_id;
70 ret = fb_find_mode(&setting->fbi->var, setting->fbi, setting->dft_mode_str,
71 modedb, modedb_sz, NULL, setting->default_bpp);
73 fb_videomode_to_var(&setting->fbi->var, &modedb[0]);
74 setting->if_fmt = plat_data->default_ifmt;
77 INIT_LIST_HEAD(&setting->fbi->modelist);
78 for (i = 0; i < modedb_sz; i++) {
79 struct fb_videomode m;
80 fb_var_to_videomode(&m, &setting->fbi->var);
81 if (fb_mode_is_equal(&m, &modedb[i])) {
82 fb_add_videomode(&modedb[i],
83 &setting->fbi->modelist);
91 void lcdif_deinit(struct mxc_dispdrv_handle *disp)
96 static struct mxc_dispdrv_driver lcdif_drv = {
99 .deinit = lcdif_deinit,
102 static int lcd_get_of_property(struct platform_device *pdev,
103 struct mxc_lcd_platform_data *plat_data)
105 struct device_node *np = pdev->dev.of_node;
108 const char *default_ifmt;
110 err = of_property_read_string(np, "default_ifmt", &default_ifmt);
112 dev_err(&pdev->dev, "get of property default_ifmt fail\n");
115 err = of_property_read_u32(np, "ipu_id", &ipu_id);
117 dev_err(&pdev->dev, "get of property ipu_id fail\n");
120 err = of_property_read_u32(np, "disp_id", &disp_id);
122 dev_err(&pdev->dev, "get of property disp_id fail\n");
126 plat_data->ipu_id = ipu_id;
127 plat_data->disp_id = disp_id;
128 if (!strncmp(default_ifmt, "RGB24", 5))
129 plat_data->default_ifmt = IPU_PIX_FMT_RGB24;
130 else if (!strncmp(default_ifmt, "BGR24", 5))
131 plat_data->default_ifmt = IPU_PIX_FMT_BGR24;
132 else if (!strncmp(default_ifmt, "GBR24", 5))
133 plat_data->default_ifmt = IPU_PIX_FMT_GBR24;
134 else if (!strncmp(default_ifmt, "RGB565", 6))
135 plat_data->default_ifmt = IPU_PIX_FMT_RGB565;
136 else if (!strncmp(default_ifmt, "RGB666", 6))
137 plat_data->default_ifmt = IPU_PIX_FMT_RGB666;
138 else if (!strncmp(default_ifmt, "YUV444", 6))
139 plat_data->default_ifmt = IPU_PIX_FMT_YUV444;
140 else if (!strncmp(default_ifmt, "LVDS666", 7))
141 plat_data->default_ifmt = IPU_PIX_FMT_LVDS666;
142 else if (!strncmp(default_ifmt, "YUYV16", 6))
143 plat_data->default_ifmt = IPU_PIX_FMT_YUYV;
144 else if (!strncmp(default_ifmt, "UYVY16", 6))
145 plat_data->default_ifmt = IPU_PIX_FMT_UYVY;
146 else if (!strncmp(default_ifmt, "YVYU16", 6))
147 plat_data->default_ifmt = IPU_PIX_FMT_YVYU;
148 else if (!strncmp(default_ifmt, "VYUY16", 6))
149 plat_data->default_ifmt = IPU_PIX_FMT_VYUY;
151 dev_err(&pdev->dev, "err default_ifmt!\n");
158 static int mxc_lcdif_probe(struct platform_device *pdev)
161 struct pinctrl *pinctrl;
162 struct mxc_lcdif_data *lcdif;
163 struct mxc_lcd_platform_data *plat_data;
165 dev_dbg(&pdev->dev, "%s enter\n", __func__);
166 lcdif = devm_kzalloc(&pdev->dev, sizeof(struct mxc_lcdif_data),
170 plat_data = devm_kzalloc(&pdev->dev,
171 sizeof(struct mxc_lcd_platform_data),
175 pdev->dev.platform_data = plat_data;
177 ret = lcd_get_of_property(pdev, plat_data);
179 dev_err(&pdev->dev, "get lcd of property fail\n");
183 pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
184 if (IS_ERR(pinctrl)) {
185 dev_err(&pdev->dev, "can't get/select pinctrl\n");
186 return PTR_ERR(pinctrl);
190 lcdif->disp_lcdif = mxc_dispdrv_register(&lcdif_drv);
191 mxc_dispdrv_setdata(lcdif->disp_lcdif, lcdif);
193 dev_set_drvdata(&pdev->dev, lcdif);
194 dev_dbg(&pdev->dev, "%s exit\n", __func__);
199 static int mxc_lcdif_remove(struct platform_device *pdev)
201 struct mxc_lcdif_data *lcdif = dev_get_drvdata(&pdev->dev);
203 mxc_dispdrv_puthandle(lcdif->disp_lcdif);
204 mxc_dispdrv_unregister(lcdif->disp_lcdif);
209 static const struct of_device_id imx_lcd_dt_ids[] = {
210 { .compatible = "fsl,lcd"},
213 static struct platform_driver mxc_lcdif_driver = {
216 .of_match_table = imx_lcd_dt_ids,
218 .probe = mxc_lcdif_probe,
219 .remove = mxc_lcdif_remove,
222 static int __init mxc_lcdif_init(void)
224 return platform_driver_register(&mxc_lcdif_driver);
227 static void __exit mxc_lcdif_exit(void)
229 platform_driver_unregister(&mxc_lcdif_driver);
232 module_init(mxc_lcdif_init);
233 module_exit(mxc_lcdif_exit);
235 MODULE_AUTHOR("Freescale Semiconductor, Inc.");
236 MODULE_DESCRIPTION("i.MX ipuv3 LCD extern port driver");
237 MODULE_LICENSE("GPL");