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

   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
  17static 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        }
  34exit:
  35        return r;
  36}
  37
  38static void innovator1610_panel_cleanup(struct lcd_panel *panel)
  39{
  40        gpio_free(15);
  41        gpio_free(14);
  42}
  43
  44static 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
  52static 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
  59static 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
  82static int innovator1610_panel_probe(struct platform_device *pdev)
  83{
  84        omapfb_register_panel(&innovator1610_panel);
  85        return 0;
  86}
  87
  88static struct platform_driver innovator1610_panel_driver = {
  89        .probe          = innovator1610_panel_probe,
  90        .driver         = {
  91                .name   = "lcd_inn1610",
  92        },
  93};
  94
  95module_platform_driver(innovator1610_panel_driver);
  96
  97MODULE_AUTHOR("Imre Deak");
  98MODULE_DESCRIPTION("LCD panel support for the TI OMAP1610 Innovator board");
  99MODULE_LICENSE("GPL");
 100