e4c060db2c
We want to remove plat/cpu.h. To do this, let's first split it to private soc.h to mach-omap1 and mach-omap2. We have to keep plat/cpu.h around until the remaining drivers are fixed, so let's include the local soc.h in plat/cpu.h and for drivers still including plat/cpu.h. Once the drivers are fixed not to include plat/cpu.h, we can remove the file. This is needed for the ARM common zImage support. [tony@atomide.com: updated to not print a warning] Signed-off-by: Tony Lindgren <tony@atomide.com>
147 lines
3.7 KiB
C
147 lines
3.7 KiB
C
/*
|
|
* Copyright (C) 2010 Texas Instruments Inc.
|
|
*
|
|
* Modified from mach-omap2/board-zoom-peripherals.c
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/i2c/twl.h>
|
|
#include <linux/spi/spi.h>
|
|
#include <linux/platform_data/spi-omap2-mcspi.h>
|
|
#include <video/omapdss.h>
|
|
#include "board-zoom.h"
|
|
|
|
#include "soc.h"
|
|
#include "common.h"
|
|
|
|
#define LCD_PANEL_RESET_GPIO_PROD 96
|
|
#define LCD_PANEL_RESET_GPIO_PILOT 55
|
|
#define LCD_PANEL_QVGA_GPIO 56
|
|
|
|
static struct gpio zoom_lcd_gpios[] __initdata = {
|
|
{ -EINVAL, GPIOF_OUT_INIT_HIGH, "lcd reset" },
|
|
{ LCD_PANEL_QVGA_GPIO, GPIOF_OUT_INIT_HIGH, "lcd qvga" },
|
|
};
|
|
|
|
static void __init zoom_lcd_panel_init(void)
|
|
{
|
|
zoom_lcd_gpios[0].gpio = (omap_rev() > OMAP3430_REV_ES3_0) ?
|
|
LCD_PANEL_RESET_GPIO_PROD :
|
|
LCD_PANEL_RESET_GPIO_PILOT;
|
|
|
|
if (gpio_request_array(zoom_lcd_gpios, ARRAY_SIZE(zoom_lcd_gpios)))
|
|
pr_err("%s: Failed to get LCD GPIOs.\n", __func__);
|
|
}
|
|
|
|
static int zoom_panel_enable_lcd(struct omap_dss_device *dssdev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void zoom_panel_disable_lcd(struct omap_dss_device *dssdev)
|
|
{
|
|
}
|
|
|
|
/*
|
|
* PWMA/B register offsets (TWL4030_MODULE_PWMA)
|
|
*/
|
|
#define TWL_INTBR_PMBR1 0xD
|
|
#define TWL_INTBR_GPBR1 0xC
|
|
#define TWL_LED_PWMON 0x0
|
|
#define TWL_LED_PWMOFF 0x1
|
|
|
|
static int zoom_set_bl_intensity(struct omap_dss_device *dssdev, int level)
|
|
{
|
|
#ifdef CONFIG_TWL4030_CORE
|
|
unsigned char c;
|
|
u8 mux_pwm, enb_pwm;
|
|
|
|
if (level > 100)
|
|
return -1;
|
|
|
|
twl_i2c_read_u8(TWL4030_MODULE_INTBR, &mux_pwm, TWL_INTBR_PMBR1);
|
|
twl_i2c_read_u8(TWL4030_MODULE_INTBR, &enb_pwm, TWL_INTBR_GPBR1);
|
|
|
|
if (level == 0) {
|
|
/* disable pwm1 output and clock */
|
|
enb_pwm = enb_pwm & 0xF5;
|
|
/* change pwm1 pin to gpio pin */
|
|
mux_pwm = mux_pwm & 0xCF;
|
|
twl_i2c_write_u8(TWL4030_MODULE_INTBR,
|
|
enb_pwm, TWL_INTBR_GPBR1);
|
|
twl_i2c_write_u8(TWL4030_MODULE_INTBR,
|
|
mux_pwm, TWL_INTBR_PMBR1);
|
|
return 0;
|
|
}
|
|
|
|
if (!((enb_pwm & 0xA) && (mux_pwm & 0x30))) {
|
|
/* change gpio pin to pwm1 pin */
|
|
mux_pwm = mux_pwm | 0x30;
|
|
/* enable pwm1 output and clock*/
|
|
enb_pwm = enb_pwm | 0x0A;
|
|
twl_i2c_write_u8(TWL4030_MODULE_INTBR,
|
|
mux_pwm, TWL_INTBR_PMBR1);
|
|
twl_i2c_write_u8(TWL4030_MODULE_INTBR,
|
|
enb_pwm, TWL_INTBR_GPBR1);
|
|
}
|
|
|
|
c = ((50 * (100 - level)) / 100) + 1;
|
|
twl_i2c_write_u8(TWL4030_MODULE_PWM1, 0x7F, TWL_LED_PWMOFF);
|
|
twl_i2c_write_u8(TWL4030_MODULE_PWM1, c, TWL_LED_PWMON);
|
|
#else
|
|
pr_warn("Backlight not enabled\n");
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct omap_dss_device zoom_lcd_device = {
|
|
.name = "lcd",
|
|
.driver_name = "NEC_8048_panel",
|
|
.type = OMAP_DISPLAY_TYPE_DPI,
|
|
.phy.dpi.data_lines = 24,
|
|
.platform_enable = zoom_panel_enable_lcd,
|
|
.platform_disable = zoom_panel_disable_lcd,
|
|
.max_backlight_level = 100,
|
|
.set_backlight = zoom_set_bl_intensity,
|
|
};
|
|
|
|
static struct omap_dss_device *zoom_dss_devices[] = {
|
|
&zoom_lcd_device,
|
|
};
|
|
|
|
static struct omap_dss_board_info zoom_dss_data = {
|
|
.num_devices = ARRAY_SIZE(zoom_dss_devices),
|
|
.devices = zoom_dss_devices,
|
|
.default_device = &zoom_lcd_device,
|
|
};
|
|
|
|
static struct omap2_mcspi_device_config dss_lcd_mcspi_config = {
|
|
.turbo_mode = 1,
|
|
};
|
|
|
|
static struct spi_board_info nec_8048_spi_board_info[] __initdata = {
|
|
[0] = {
|
|
.modalias = "nec_8048_spi",
|
|
.bus_num = 1,
|
|
.chip_select = 2,
|
|
.max_speed_hz = 375000,
|
|
.controller_data = &dss_lcd_mcspi_config,
|
|
},
|
|
};
|
|
|
|
void __init zoom_display_init(void)
|
|
{
|
|
omap_display_init(&zoom_dss_data);
|
|
spi_register_board_info(nec_8048_spi_board_info,
|
|
ARRAY_SIZE(nec_8048_spi_board_info));
|
|
zoom_lcd_panel_init();
|
|
}
|
|
|