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/* arch/arm/mach-omap2/board-espresso-display.c
*
* Copyright (C) 2011 Samsung Electronics Co, Ltd.
*
* Based on mach-omap2/board-tuna-display.c
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/omapfb.h>
#include <linux/regulator/consumer.h>
#include <linux/platform_data/panel-ltn.h>
#include <plat/omap_hwmod.h>
#include <plat/android-display.h>
#include <video/omapdss.h>
#include "board-espresso.h"
#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
#include <plat/clock.h>
#include <linux/clk.h>
#endif
#define GPIO_LED_BACKLIGHT_RESET 95
#define GPIO_LCD_EN 135
#define GPIO_LVDS_NSHDN 136
static void espresso_lcd_set_power(bool enable)
{
pr_debug("%s: %d\n", __func__, enable);
gpio_set_value(GPIO_LCD_EN, enable);
}
static void espresso_lcd_set_gptimer_idle(void)
{
struct omap_hwmod *timer10_hwmod;
pr_debug("espresso_lcd_set_gptimer_idle\n");
timer10_hwmod = omap_hwmod_lookup("timer10");
if (likely(timer10_hwmod))
omap_hwmod_idle(timer10_hwmod);
}
static struct ltn_panel_data espresso_panel_data = {
.set_power = espresso_lcd_set_power,
.set_gptimer_idle = espresso_lcd_set_gptimer_idle,
.lvds_nshdn_gpio = GPIO_LVDS_NSHDN,
.led_backlight_reset_gpio = GPIO_LED_BACKLIGHT_RESET,
.backlight_gptimer_num = 10,
.brightness_table = {
.platform_value = {BRIGHTNESS_OFF, BRIGHTNESS_DIM, BRIGHTNESS_MIN,
BRIGHTNESS_25, BRIGHTNESS_DEFAULT, BRIGHTNESS_MAX},
.kernel_value = { 0, 2, 3, 8, 40, 85 },
},
};
static struct omap_dss_device espresso_lcd_device = {
.name = "lcd",
.driver_name = "ltn_panel",
.type = OMAP_DISPLAY_TYPE_DPI,
.phy.dpi.data_lines = 24,
.data = &espresso_panel_data,
.channel = OMAP_DSS_CHANNEL_LCD2,
#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
.skip_init = true,
#else
.skip_init = false,
#endif
.panel = {
.timings = {
.x_res = 1024,
.y_res = 600,
.pixel_clock = 56888, /* closest to 56000 */
.hfp = 186,
.hsw = 50,
.hbp = 210,
.vfp = 24,
.vsw = 10,
.vbp = 11,
},
.width_in_um = 153600,
.height_in_um = 90000,
},
};
static struct omap_dss_device espresso10_lcd_config = {
.panel = {
.timings = {
.x_res = 1280,
.y_res = 800,
.pixel_clock = 69818, /* closest to 69000 */
.hfp = 16,
.hsw = 48,
.hbp = 64,
.vfp = 16,
.vsw = 3,
.vbp = 11,
},
.width_in_um = 216960,
.height_in_um = 135600,
},
};
static struct omap_dss_device *espresso_dss_devices[] = {
&espresso_lcd_device,
};
static struct omap_dss_board_info espresso_dss_data = {
.num_devices = ARRAY_SIZE(espresso_dss_devices),
.devices = espresso_dss_devices,
.default_device = &espresso_lcd_device,
};
static struct omapfb_platform_data espresso_fb_pdata = {
.mem_desc = {
.region_cnt = 1,
},
};
void __init omap4_espresso_memory_display_init(void)
{
if (board_is_espresso10())
espresso_dss_data.devices[0]->panel = espresso10_lcd_config.panel;
omap_android_display_setup(&espresso_dss_data,
NULL,
NULL,
&espresso_fb_pdata,
get_omap_ion_platform_data());
}
void __init omap4_espresso_display_early_init(void)
{
struct omap_hwmod *timer10_hwmod;
struct omap_hwmod *gpio3_hwmod;
struct omap_hwmod *gpio5_hwmod;
/* correct timer10 hwmod flag settings for espresso board. */
timer10_hwmod = omap_hwmod_lookup("timer10");
if (likely(timer10_hwmod))
timer10_hwmod->flags =
(HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET);
/* correct gpio3 hwmod flag settings for espresso board. */
gpio3_hwmod = omap_hwmod_lookup("gpio3");
if (likely(gpio3_hwmod))
gpio3_hwmod->flags = HWMOD_INIT_NO_RESET;
/* correct gpio5 hwmod flag settings for espresso board. */
gpio5_hwmod = omap_hwmod_lookup("gpio5");
if (likely(gpio5_hwmod))
gpio5_hwmod->flags = HWMOD_INIT_NO_RESET;
}
void __init omap4_espresso_display_init(void)
{
int ret;
#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
struct clk *dss_dss_fclk;
#endif
if (board_is_espresso10())
espresso_panel_data.pwm_duty_max = 1600; /* 25kHz */
else
espresso_panel_data.pwm_duty_max = 1200; /* 32kHz */
#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
dss_dss_fclk = omap_clk_get_by_name("dss_dss_clk");
if (IS_ERR(dss_dss_fclk)) {
pr_err("Could not get dss functional clock\n");
/* return -ENOENT; */
}
clk_enable(dss_dss_fclk);
#endif
ret = gpio_request(GPIO_LCD_EN, "lcd_en");
if (ret < 0)
pr_err("%s: gpio_request %d failed!\n", __func__, GPIO_LCD_EN);
gpio_direction_output(GPIO_LCD_EN, 1);
omap_display_init(&espresso_dss_data);
}
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