drivers/video/fbdev/omap/lcd_h3.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * LCD panel support for the TI OMAP H3 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 #include <linux/mfd/tps65010.h>
  12 #include <linux/gpio.h>
  13
  14 #include "omapfb.h"
  15
  16 #define MODULE_NAME     "omapfb-lcd_h3"
  17
  18 static int h3_panel_enable(struct lcd_panel *panel)
  19 {
  20         int r = 0;
  21
  22         /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
  23         r = tps65010_set_gpio_out_value(GPIO1, HIGH);
  24         if (!r)
  25                 r = tps65010_set_gpio_out_value(GPIO2, HIGH);
  26         if (r)
  27                 pr_err(MODULE_NAME ": Unable to turn on LCD panel\n");
  28
  29         return r;
  30 }
  31
  32 static void h3_panel_disable(struct lcd_panel *panel)
  33 {
  34         int r = 0;
  35
  36         /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
  37         r = tps65010_set_gpio_out_value(GPIO1, LOW);
  38         if (!r)
  39                 tps65010_set_gpio_out_value(GPIO2, LOW);
  40         if (r)
  41                 pr_err(MODULE_NAME ": Unable to turn off LCD panel\n");
  42 }
  43
  44 static struct lcd_panel h3_panel = {
  45         .name           = "h3",
  46         .config         = OMAP_LCDC_PANEL_TFT,
  47
  48         .data_lines     = 16,
  49         .bpp            = 16,
  50         .x_res          = 240,
  51         .y_res          = 320,
  52         .pixel_clock    = 12000,
  53         .hsw            = 12,
  54         .hfp            = 14,
  55         .hbp            = 72 - 12,
  56         .vsw            = 1,
  57         .vfp            = 1,
  58         .vbp            = 0,
  59         .pcd            = 0,
  60
  61         .enable         = h3_panel_enable,
  62         .disable        = h3_panel_disable,
  63 };
  64
  65 static int h3_panel_probe(struct platform_device *pdev)
  66 {
  67         omapfb_register_panel(&h3_panel);
  68         return 0;
  69 }
  70
  71 static struct platform_driver h3_panel_driver = {
  72         .probe          = h3_panel_probe,
  73         .driver         = {
  74                 .name   = "lcd_h3",
  75         },
  76 };
  77
  78 module_platform_driver(h3_panel_driver);
  79
  80 MODULE_AUTHOR("Imre Deak");
  81 MODULE_DESCRIPTION("LCD panel support for the TI OMAP H3 board");
  82 MODULE_LICENSE("GPL");