drivers/video/omap/lcd_h6300.c

   1 /*
   2  * File: drivers/video/omap_new/lcd-h6300.c
   3  *
   4  * LCD panel support for the TI OMAP1510 based iPAQ h63xx series of mobile phones.
   5  * (h6315, h6340 and h6365)
   6  *
   7  * Copyright (C) 2009 Mika Laitio
   8  * Copyright (C) 2009 Husam Senussi
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License as published by the
  12  * Free Software Foundation; either version 2 of the License, or (at your
  13  * option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23  */
  24
  25 #include <linux/module.h>
  26 #include <linux/platform_device.h>
  27
  28 #include <asm/io.h>
  29 #include <asm/arch/pca9535.h>
  30 #include <asm/arch/omapfb.h>
  31
  32 /* #define OMAPFB_DBG 1 */
  33
  34 #include "debug.h"
  35
  36 //static struct clk *h6300_lcd_ck;
  37
  38 static int h6300_panel_init(struct omapfb_device *fbdev)
  39 {
  40         DBGENTER(1);
  41 /*
  42         if ((h6300_lcd_ck = clk_get (NULL, "lcd_ck")) == NULL) {
  43                 printk(KERN_ERR "Unable to get the clock LCD_CK!!!\n");
  44                 return -EPERM;
  45         } clk_enable(h6300_lcd_ck);
  46 */
  47         DBGLEAVE(1);
  48         printk(KERN_INFO "lcd_h6300.c: h6300_panel_init() done\n");
  49         return 0;
  50 }
  51
  52 static void h6300_panel_cleanup(void)
  53 {
  54         DBGENTER(1);
  55 /*
  56         if (h6300_lcd_ck) {
  57                 clk_disable(h6300_lcd_ck);
  58                 clk_put(h6300_lcd_ck);
  59                 h6300_lcd_ck = NULL;
  60         }
  61 */
  62         DBGLEAVE(1);
  63         printk(KERN_INFO "lcd_h6300.c: h6300_panel_cleanup() done\n");
  64 }
  65
  66 static int h6300_panel_enable(void)
  67 {
  68         DBGENTER(1);
  69         DBGLEAVE(1);
  70         printk(KERN_INFO "lcd_h6300.c: h6300_panel_enable() done\n");
  71         return 0;
  72 }
  73
  74 static void h6300_panel_disable(void)
  75 {
  76         DBGENTER(1);
  77         DBGLEAVE(1);
  78         printk(KERN_INFO "lcd_h6300.c: h6300_panel_disable() done\n");
  79 }
  80
  81 static unsigned long h6300_panel_get_caps(void)
  82 {
  83         printk(KERN_INFO "lcd_h6300.c: h6300_panel_get_caps() called\n");
  84         return 0;
  85 }
  86
  87 struct lcd_panel h6300_panel = {
  88         .name           = "h6300",
  89         .config         = OMAP_LCDC_PANEL_TFT,
  90
  91         .bpp            = 16,
  92         .data_lines     = 16,
  93         .x_res          = 240,
  94         .y_res          = 320,
  95         .pixel_clock    = 21000,
  96         .hsw            = 12,
  97         .hfp            = 10,
  98         .hbp            = 10,
  99         .vsw            = 3,
 100         .vfp            = 10,
 101         .vbp            = 3,
 102         .pcd            = 0,
 103
 104         .init           = h6300_panel_init,
 105         .cleanup        = h6300_panel_cleanup,
 106         .enable         = h6300_panel_enable,
 107         .disable        = h6300_panel_disable,
 108         .get_caps       = h6300_panel_get_caps,
 109 };
 110
 111 static int h6300_panel_probe(struct platform_device *pdev)
 112 {
 113         DBGENTER(1);
 114         omapfb_register_panel(&h6300_panel);
 115         return 0;
 116 }
 117
 118 static int h6300_panel_remove(struct platform_device *pdev)
 119 {
 120         DBGENTER(1);
 121         return 0;
 122 }
 123
 124 static int h6300_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
 125 {
 126         DBGENTER(1);
 127         pca9535_gpio_write(GPIO3, HI);
 128         return 0;
 129 }
 130
 131 static int h6300_panel_resume(struct platform_device *pdev)
 132 {
 133         DBGENTER(1);
 134         pca9535_gpio_write(GPIO3, LOW);
 135         return 0;
 136 }
 137
 138 struct platform_driver h6300_panel_driver = {
 139         .probe          = h6300_panel_probe,
 140         .remove         = h6300_panel_remove,
 141         .suspend        = h6300_panel_suspend,
 142         .resume         = h6300_panel_resume,
 143         .driver         = {
 144                 .name   = "lcd_h6300",
 145                 .owner  = THIS_MODULE,
 146         },
 147 };
 148
 149 static int h6300_panel_drv_init(void)
 150 {
 151         return platform_driver_register(&h6300_panel_driver);
 152 }
 153
 154 static void h6300_panel_drv_cleanup(void)
 155 {
 156         platform_driver_unregister(&h6300_panel_driver);
 157 }
 158
 159 module_init(h6300_panel_drv_init);
 160 module_exit(h6300_panel_drv_cleanup);