drivers/video/fbdev/omap/lcd_inn1610.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * LCD panel support for the TI OMAP1610 Innovator board
   4  *
   5  * Copyright (C) 2004 Nokia Corporation
   6  * Author: Imre Deak <imre.deak@nokia.com>
   7  */
   8
   9 #include <linux/module.h>
  10 #include <linux/platform_device.h>
  11
  12 #include <linux/gpio.h>
  13 #include "omapfb.h"
  14
  15 #define MODULE_NAME     "omapfb-lcd_h3"
  16
  17 static int innovator1610_panel_init(struct lcd_panel *panel,
  18                                     struct omapfb_device *fbdev)
  19 {
  20         int r = 0;
  21
  22         /* configure GPIO(14, 15) as outputs */
  23         if (gpio_request_one(14, GPIOF_OUT_INIT_LOW, "lcd_en0")) {
  24                 pr_err(MODULE_NAME ": can't request GPIO 14\n");
  25                 r = -1;
  26                 goto exit;
  27         }
  28         if (gpio_request_one(15, GPIOF_OUT_INIT_LOW, "lcd_en1")) {
  29                 pr_err(MODULE_NAME ": can't request GPIO 15\n");
  30                 gpio_free(14);
  31                 r = -1;
  32                 goto exit;
  33         }
  34 exit:
  35         return r;
  36 }
  37
  38 static void innovator1610_panel_cleanup(struct lcd_panel *panel)
  39 {
  40         gpio_free(15);
  41         gpio_free(14);
  42 }
  43
  44 static int innovator1610_panel_enable(struct lcd_panel *panel)
  45 {
  46         /* set GPIO14 and GPIO15 high */
  47         gpio_set_value(14, 1);
  48         gpio_set_value(15, 1);
  49         return 0;
  50 }
  51
  52 static void innovator1610_panel_disable(struct lcd_panel *panel)
  53 {
  54         /* set GPIO13, GPIO14 and GPIO15 low */
  55         gpio_set_value(14, 0);
  56         gpio_set_value(15, 0);
  57 }
  58
  59 static struct lcd_panel innovator1610_panel = {
  60         .name           = "inn1610",
  61         .config         = OMAP_LCDC_PANEL_TFT,
  62
  63         .bpp            = 16,
  64         .data_lines     = 16,
  65         .x_res          = 320,
  66         .y_res          = 240,
  67         .pixel_clock    = 12500,
  68         .hsw            = 40,
  69         .hfp            = 40,
  70         .hbp            = 72,
  71         .vsw            = 1,
  72         .vfp            = 1,
  73         .vbp            = 0,
  74         .pcd            = 12,
  75
  76         .init           = innovator1610_panel_init,
  77         .cleanup        = innovator1610_panel_cleanup,
  78         .enable         = innovator1610_panel_enable,
  79         .disable        = innovator1610_panel_disable,
  80 };
  81
  82 static int innovator1610_panel_probe(struct platform_device *pdev)
  83 {
  84         omapfb_register_panel(&innovator1610_panel);
  85         return 0;
  86 }
  87
  88 static struct platform_driver innovator1610_panel_driver = {
  89         .probe          = innovator1610_panel_probe,
  90         .driver         = {
  91                 .name   = "lcd_inn1610",
  92         },
  93 };
  94
  95 module_platform_driver(innovator1610_panel_driver);
  96
  97 MODULE_AUTHOR("Imre Deak");
  98 MODULE_DESCRIPTION("LCD panel support for the TI OMAP1610 Innovator board");
  99 MODULE_LICENSE("GPL");