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>
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/*
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* LCD panel support for the TI OMAP H3 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/i2c/tps65010.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 h3_panel_enable(struct lcd_panel *panel)
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{
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int r = 0;
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/* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
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r = tps65010_set_gpio_out_value(GPIO1, HIGH);
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if (!r)
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r = tps65010_set_gpio_out_value(GPIO2, HIGH);
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if (r)
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pr_err(MODULE_NAME ": Unable to turn on LCD panel\n");
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return r;
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}
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static void h3_panel_disable(struct lcd_panel *panel)
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{
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int r = 0;
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/* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
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r = tps65010_set_gpio_out_value(GPIO1, LOW);
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if (!r)
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tps65010_set_gpio_out_value(GPIO2, LOW);
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if (r)
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pr_err(MODULE_NAME ": Unable to turn off LCD panel\n");
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}
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static struct lcd_panel h3_panel = {
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.name = "h3",
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.config = OMAP_LCDC_PANEL_TFT,
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.data_lines = 16,
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.bpp = 16,
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.x_res = 240,
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.y_res = 320,
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.pixel_clock = 12000,
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.hsw = 12,
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.hfp = 14,
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.hbp = 72 - 12,
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.vsw = 1,
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.vfp = 1,
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.vbp = 0,
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.pcd = 0,
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.enable = h3_panel_enable,
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.disable = h3_panel_disable,
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};
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static int h3_panel_probe(struct platform_device *pdev)
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{
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omapfb_register_panel(&h3_panel);
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return 0;
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}
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static struct platform_driver h3_panel_driver = {
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.probe = h3_panel_probe,
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.driver = {
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.name = "lcd_h3",
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},
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};
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module_platform_driver(h3_panel_driver);
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