mirror of https://gitee.com/openkylin/linux.git
143 lines
3.0 KiB
C
143 lines
3.0 KiB
C
/*
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* LCD panel support for the TI OMAP OSK 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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* Adapted for OSK by <dirk.behme@de.bosch.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 <mach/gpio.h>
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#include <plat/mux.h>
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#include "omapfb.h"
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static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
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{
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/* gpio2 was allocated in board init */
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return 0;
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}
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static void osk_panel_cleanup(struct lcd_panel *panel)
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{
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}
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static int osk_panel_enable(struct lcd_panel *panel)
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{
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/* configure PWL pin */
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omap_cfg_reg(PWL);
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/* Enable PWL unit */
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omap_writeb(0x01, OMAP_PWL_CLK_ENABLE);
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/* Set PWL level */
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omap_writeb(0xFF, OMAP_PWL_ENABLE);
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/* set GPIO2 high (lcd power enabled) */
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gpio_set_value(2, 1);
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return 0;
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}
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static void osk_panel_disable(struct lcd_panel *panel)
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{
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/* Set PWL level to zero */
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omap_writeb(0x00, OMAP_PWL_ENABLE);
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/* Disable PWL unit */
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omap_writeb(0x00, OMAP_PWL_CLK_ENABLE);
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/* set GPIO2 low */
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gpio_set_value(2, 0);
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}
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static unsigned long osk_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 osk_panel = {
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.name = "osk",
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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 = 240,
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.y_res = 320,
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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 = osk_panel_init,
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.cleanup = osk_panel_cleanup,
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.enable = osk_panel_enable,
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.disable = osk_panel_disable,
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.get_caps = osk_panel_get_caps,
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};
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static int osk_panel_probe(struct platform_device *pdev)
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{
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omapfb_register_panel(&osk_panel);
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return 0;
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}
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static int osk_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 osk_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
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{
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return 0;
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}
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static int osk_panel_resume(struct platform_device *pdev)
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{
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return 0;
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}
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struct platform_driver osk_panel_driver = {
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.probe = osk_panel_probe,
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.remove = osk_panel_remove,
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.suspend = osk_panel_suspend,
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.resume = osk_panel_resume,
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.driver = {
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.name = "lcd_osk",
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.owner = THIS_MODULE,
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},
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};
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static int __init osk_panel_drv_init(void)
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{
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return platform_driver_register(&osk_panel_driver);
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}
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static void __exit osk_panel_drv_cleanup(void)
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{
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platform_driver_unregister(&osk_panel_driver);
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}
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module_init(osk_panel_drv_init);
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module_exit(osk_panel_drv_cleanup);
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