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,
46 /* 800x480 @ 60 Hz , pixel clk @ 32MHz */
47 "SEIKO-WVGA", 60, 800, 480, 29850, 89, 164, 23, 10, 10, 10,
49 FB_VMODE_NONINTERLACED,
52 static int lcdif_modedb_sz = ARRAY_SIZE(lcdif_modedb);
54 static int lcdif_init(struct mxc_dispdrv_handle *disp,
55 struct mxc_dispdrv_setting *setting)
58 struct mxc_lcdif_data *lcdif = mxc_dispdrv_getdata(disp);
59 struct mxc_lcd_platform_data *plat_data
60 = lcdif->pdev->dev.platform_data;
61 struct fb_videomode *modedb = lcdif_modedb;
62 int modedb_sz = lcdif_modedb_sz;
64 /* use platform defined ipu/di */
65 setting->dev_id = plat_data->ipu_id;
66 setting->disp_id = plat_data->disp_id;
68 ret = fb_find_mode(&setting->fbi->var, setting->fbi, setting->dft_mode_str,
69 modedb, modedb_sz, NULL, setting->default_bpp);
71 fb_videomode_to_var(&setting->fbi->var, &modedb[0]);
72 setting->if_fmt = plat_data->default_ifmt;
75 INIT_LIST_HEAD(&setting->fbi->modelist);
76 for (i = 0; i < modedb_sz; i++) {
77 struct fb_videomode m;
78 fb_var_to_videomode(&m, &setting->fbi->var);
79 if (fb_mode_is_equal(&m, &modedb[i])) {
80 fb_add_videomode(&modedb[i],
81 &setting->fbi->modelist);
89 void lcdif_deinit(struct mxc_dispdrv_handle *disp)
94 static struct mxc_dispdrv_driver lcdif_drv = {
97 .deinit = lcdif_deinit,
100 static int lcd_get_of_property(struct platform_device *pdev,
101 struct mxc_lcd_platform_data *plat_data)
103 struct device_node *np = pdev->dev.of_node;
106 const char *default_ifmt;
108 err = of_property_read_string(np, "default_ifmt", &default_ifmt);
110 dev_err(&pdev->dev, "get of property default_ifmt fail\n");
113 err = of_property_read_u32(np, "ipu_id", &ipu_id);
115 dev_err(&pdev->dev, "get of property ipu_id fail\n");
118 err = of_property_read_u32(np, "disp_id", &disp_id);
120 dev_err(&pdev->dev, "get of property disp_id fail\n");
124 plat_data->ipu_id = ipu_id;
125 plat_data->disp_id = disp_id;
126 if (!strncmp(default_ifmt, "RGB24", 5))
127 plat_data->default_ifmt = IPU_PIX_FMT_RGB24;
128 else if (!strncmp(default_ifmt, "BGR24", 5))
129 plat_data->default_ifmt = IPU_PIX_FMT_BGR24;
130 else if (!strncmp(default_ifmt, "GBR24", 5))
131 plat_data->default_ifmt = IPU_PIX_FMT_GBR24;
132 else if (!strncmp(default_ifmt, "RGB565", 6))
133 plat_data->default_ifmt = IPU_PIX_FMT_RGB565;
134 else if (!strncmp(default_ifmt, "RGB666", 6))
135 plat_data->default_ifmt = IPU_PIX_FMT_RGB666;
136 else if (!strncmp(default_ifmt, "YUV444", 6))
137 plat_data->default_ifmt = IPU_PIX_FMT_YUV444;
138 else if (!strncmp(default_ifmt, "LVDS666", 7))
139 plat_data->default_ifmt = IPU_PIX_FMT_LVDS666;
140 else if (!strncmp(default_ifmt, "YUYV16", 6))
141 plat_data->default_ifmt = IPU_PIX_FMT_YUYV;
142 else if (!strncmp(default_ifmt, "UYVY16", 6))
143 plat_data->default_ifmt = IPU_PIX_FMT_UYVY;
144 else if (!strncmp(default_ifmt, "YVYU16", 6))
145 plat_data->default_ifmt = IPU_PIX_FMT_YVYU;
146 else if (!strncmp(default_ifmt, "VYUY16", 6))
147 plat_data->default_ifmt = IPU_PIX_FMT_VYUY;
149 dev_err(&pdev->dev, "err default_ifmt!\n");
156 static int mxc_lcdif_probe(struct platform_device *pdev)
159 struct pinctrl *pinctrl;
160 struct mxc_lcdif_data *lcdif;
161 struct mxc_lcd_platform_data *plat_data;
163 dev_dbg(&pdev->dev, "%s enter\n", __func__);
164 lcdif = devm_kzalloc(&pdev->dev, sizeof(struct mxc_lcdif_data),
168 plat_data = devm_kzalloc(&pdev->dev,
169 sizeof(struct mxc_lcd_platform_data),
173 pdev->dev.platform_data = plat_data;
175 ret = lcd_get_of_property(pdev, plat_data);
177 dev_err(&pdev->dev, "get lcd of property fail\n");
181 pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
182 if (IS_ERR(pinctrl)) {
183 dev_err(&pdev->dev, "can't get/select pinctrl\n");
184 return PTR_ERR(pinctrl);
188 lcdif->disp_lcdif = mxc_dispdrv_register(&lcdif_drv);
189 mxc_dispdrv_setdata(lcdif->disp_lcdif, lcdif);
191 dev_set_drvdata(&pdev->dev, lcdif);
192 dev_dbg(&pdev->dev, "%s exit\n", __func__);
197 static int mxc_lcdif_remove(struct platform_device *pdev)
199 struct mxc_lcdif_data *lcdif = dev_get_drvdata(&pdev->dev);
201 mxc_dispdrv_puthandle(lcdif->disp_lcdif);
202 mxc_dispdrv_unregister(lcdif->disp_lcdif);
207 static const struct of_device_id imx_lcd_dt_ids[] = {
208 { .compatible = "fsl,lcd"},
211 static struct platform_driver mxc_lcdif_driver = {
214 .of_match_table = imx_lcd_dt_ids,
216 .probe = mxc_lcdif_probe,
217 .remove = mxc_lcdif_remove,
220 static int __init mxc_lcdif_init(void)
222 return platform_driver_register(&mxc_lcdif_driver);
225 static void __exit mxc_lcdif_exit(void)
227 platform_driver_unregister(&mxc_lcdif_driver);
230 module_init(mxc_lcdif_init);
231 module_exit(mxc_lcdif_exit);
233 MODULE_AUTHOR("Freescale Semiconductor, Inc.");
234 MODULE_DESCRIPTION("i.MX ipuv3 LCD extern port driver");
235 MODULE_LICENSE("GPL");