LXR linux/drivers/video/fbdev/omap/lcd

   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
  18static 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
  32static 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
  44static 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
  65static int h3_panel_probe(struct platform_device *pdev)
  66{
  67        omapfb_register_panel(&h3_panel);
  68        return 0;
  69}
  70
  71static struct platform_driver h3_panel_driver = {
  72        .probe          = h3_panel_probe,
  73        .driver         = {
  74                .name   = "lcd_h3",
  75        },
  76};
  77
  78module_platform_driver(h3_panel_driver);
  79
  80MODULE_AUTHOR("Imre Deak");
  81MODULE_DESCRIPTION("LCD panel support for the TI OMAP H3 board");
  82MODULE_LICENSE("GPL");
  83