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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* LCD panel support for the TI OMAP OSK board
*
* Copyright (C) 2004 Nokia Corporation
* Author: Imre Deak <imre.deak@nokia.com>
* Adapted for OSK by <dirk.behme@de.bosch.com>
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/soc/ti/omap1-io.h>
#include <linux/soc/ti/omap1-mux.h>
#include "omapfb.h"
static int osk_panel_enable(struct lcd_panel *panel)
{
/* configure PWL pin */
omap_cfg_reg(PWL);
/* Enable PWL unit */
omap_writeb(0x01, OMAP_PWL_CLK_ENABLE);
/* Set PWL level */
omap_writeb(0xFF, OMAP_PWL_ENABLE);
/* set GPIO2 high (lcd power enabled) */
gpio_set_value(2, 1);
return 0;
}
static void osk_panel_disable(struct lcd_panel *panel)
{
/* Set PWL level to zero */
omap_writeb(0x00, OMAP_PWL_ENABLE);
/* Disable PWL unit */
omap_writeb(0x00, OMAP_PWL_CLK_ENABLE);
/* set GPIO2 low */
gpio_set_value(2, 0);
}
static struct lcd_panel osk_panel = {
.name = "osk",
.config = OMAP_LCDC_PANEL_TFT,
.bpp = 16,
.data_lines = 16,
.x_res = 240,
.y_res = 320,
.pixel_clock = 12500,
.hsw = 40,
.hfp = 40,
.hbp = 72,
.vsw = 1,
.vfp = 1,
.vbp = 0,
.pcd = 12,
.enable = osk_panel_enable,
.disable = osk_panel_disable,
};
static int osk_panel_probe(struct platform_device *pdev)
{
omapfb_register_panel(&osk_panel);
return 0;
}
static struct platform_driver osk_panel_driver = {
.probe = osk_panel_probe,
.driver = {
.name = "lcd_osk",
},
};
module_platform_driver(osk_panel_driver);
MODULE_AUTHOR("Imre Deak");
MODULE_DESCRIPTION("LCD panel support for the TI OMAP OSK board");
MODULE_LICENSE("GPL");
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