forked from Minki/linux
561eb9d09a
Most OMAP FB LCD drivers don't have anything to do in their panel callbacks. This leads to a large set of empty boilerplate functions in the panel drivers. Make those callbacks optional by checking if they are set before calling them. This allows those boilerplate functions to be removed. Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
109 lines
2.6 KiB
C
109 lines
2.6 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 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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};
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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 struct platform_driver innovator1610_panel_driver = {
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.probe = innovator1610_panel_probe,
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.driver = {
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.name = "lcd_inn1610",
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},
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};
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module_platform_driver(innovator1610_panel_driver);
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