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f8bd493456
Using gpio_request_one can make the code simpler because it can set the direction and initial value in one shot. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Michael Hennerich <michael.hennerich@analog.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
135 lines
3.1 KiB
C
135 lines
3.1 KiB
C
/*
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* LCD panel support for the TI OMAP1610 Innovator board
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*
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* Copyright (C) 2004 Nokia Corporation
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* Author: Imre Deak <imre.deak@nokia.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include "omapfb.h"
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#define MODULE_NAME "omapfb-lcd_h3"
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static int innovator1610_panel_init(struct lcd_panel *panel,
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struct omapfb_device *fbdev)
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{
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int r = 0;
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/* configure GPIO(14, 15) as outputs */
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if (gpio_request_one(14, GPIOF_OUT_INIT_LOW, "lcd_en0")) {
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pr_err(MODULE_NAME ": can't request GPIO 14\n");
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r = -1;
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goto exit;
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}
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if (gpio_request_one(15, GPIOF_OUT_INIT_LOW, "lcd_en1")) {
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pr_err(MODULE_NAME ": can't request GPIO 15\n");
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gpio_free(14);
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r = -1;
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goto exit;
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}
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exit:
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return r;
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}
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static void innovator1610_panel_cleanup(struct lcd_panel *panel)
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{
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gpio_free(15);
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gpio_free(14);
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}
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static int innovator1610_panel_enable(struct lcd_panel *panel)
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{
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/* set GPIO14 and GPIO15 high */
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gpio_set_value(14, 1);
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gpio_set_value(15, 1);
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return 0;
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}
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static void innovator1610_panel_disable(struct lcd_panel *panel)
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{
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/* set GPIO13, GPIO14 and GPIO15 low */
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gpio_set_value(14, 0);
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gpio_set_value(15, 0);
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}
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static unsigned long innovator1610_panel_get_caps(struct lcd_panel *panel)
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{
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return 0;
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}
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struct lcd_panel innovator1610_panel = {
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.name = "inn1610",
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.config = OMAP_LCDC_PANEL_TFT,
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.bpp = 16,
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.data_lines = 16,
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.x_res = 320,
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.y_res = 240,
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.pixel_clock = 12500,
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.hsw = 40,
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.hfp = 40,
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.hbp = 72,
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.vsw = 1,
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.vfp = 1,
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.vbp = 0,
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.pcd = 12,
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.init = innovator1610_panel_init,
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.cleanup = innovator1610_panel_cleanup,
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.enable = innovator1610_panel_enable,
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.disable = innovator1610_panel_disable,
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.get_caps = innovator1610_panel_get_caps,
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};
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static int innovator1610_panel_probe(struct platform_device *pdev)
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{
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omapfb_register_panel(&innovator1610_panel);
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return 0;
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}
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static int innovator1610_panel_remove(struct platform_device *pdev)
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{
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return 0;
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}
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static int innovator1610_panel_suspend(struct platform_device *pdev,
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pm_message_t mesg)
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{
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return 0;
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}
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static int innovator1610_panel_resume(struct platform_device *pdev)
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{
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return 0;
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}
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static struct platform_driver innovator1610_panel_driver = {
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.probe = innovator1610_panel_probe,
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.remove = innovator1610_panel_remove,
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.suspend = innovator1610_panel_suspend,
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.resume = innovator1610_panel_resume,
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.driver = {
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.name = "lcd_inn1610",
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.owner = THIS_MODULE,
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},
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};
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module_platform_driver(innovator1610_panel_driver);
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