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linux/arch/arm/mach-omap1/board-nokia770.c
Jarkko Nikula 1ed16a86b4 ARM: OMAP1: Use I2C bus registration helper for omap1 
This patch starts using introduced I2C bus registration helper by cleaning
up registration currently done in various places and by doing necessary
board file modifications.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-02-08 10:38:01 -08:00

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/*
* linux/arch/arm/mach-omap1/board-nokia770.c
*
* Modified from board-generic.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/input.h>
#include <linux/clk.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mux.h>
#include <asm/arch/usb.h>
#include <asm/arch/board.h>
#include <asm/arch/keypad.h>
#include <asm/arch/common.h>
#include <asm/arch/dsp_common.h>
#include <asm/arch/aic23.h>
#include <asm/arch/omapfb.h>
#include <asm/arch/lcd_mipid.h>
#define ADS7846_PENDOWN_GPIO 15
static void __init omap_nokia770_init_irq(void)
{
/* On Nokia 770, the SleepX signal is masked with an
* MPUIO line by default. It has to be unmasked for it
* to become functional */
/* SleepX mask direction */
omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
/* Unmask SleepX signal */
omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
omap1_init_common_hw();
omap_init_irq();
}
static int nokia770_keymap[] = {
KEY(0, 1, GROUP_0 | KEY_UP),
KEY(0, 2, GROUP_1 | KEY_F5),
KEY(1, 0, GROUP_0 | KEY_LEFT),
KEY(1, 1, GROUP_0 | KEY_ENTER),
KEY(1, 2, GROUP_0 | KEY_RIGHT),
KEY(2, 0, GROUP_1 | KEY_ESC),
KEY(2, 1, GROUP_0 | KEY_DOWN),
KEY(2, 2, GROUP_1 | KEY_F4),
KEY(3, 0, GROUP_2 | KEY_F7),
KEY(3, 1, GROUP_2 | KEY_F8),
KEY(3, 2, GROUP_2 | KEY_F6),
0
};
static struct resource nokia770_kp_resources[] = {
[0] = {
.start = INT_KEYBOARD,
.end = INT_KEYBOARD,
.flags = IORESOURCE_IRQ,
},
};
static struct omap_kp_platform_data nokia770_kp_data = {
.rows = 8,
.cols = 8,
.keymap = nokia770_keymap,
.keymapsize = ARRAY_SIZE(nokia770_keymap),
.delay = 4,
};
static struct platform_device nokia770_kp_device = {
.name = "omap-keypad",
.id = -1,
.dev = {
.platform_data = &nokia770_kp_data,
},
.num_resources = ARRAY_SIZE(nokia770_kp_resources),
.resource = nokia770_kp_resources,
};
static struct platform_device *nokia770_devices[] __initdata = {
&nokia770_kp_device,
};
static void mipid_shutdown(struct mipid_platform_data *pdata)
{
if (pdata->nreset_gpio != -1) {
printk(KERN_INFO "shutdown LCD\n");
omap_set_gpio_dataout(pdata->nreset_gpio, 0);
msleep(120);
}
}
static struct mipid_platform_data nokia770_mipid_platform_data = {
.shutdown = mipid_shutdown,
};
static void mipid_dev_init(void)
{
const struct omap_lcd_config *conf;
conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
if (conf != NULL) {
nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
nokia770_mipid_platform_data.data_lines = conf->data_lines;
}
}
static void ads7846_dev_init(void)
{
if (omap_request_gpio(ADS7846_PENDOWN_GPIO) < 0)
printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
}
static int ads7846_get_pendown_state(void)
{
return !omap_get_gpio_datain(ADS7846_PENDOWN_GPIO);
}
static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
.x_max = 0x0fff,
.y_max = 0x0fff,
.x_plate_ohms = 180,
.pressure_max = 255,
.debounce_max = 10,
.debounce_tol = 3,
.debounce_rep = 1,
.get_pendown_state = ads7846_get_pendown_state,
};
static struct spi_board_info nokia770_spi_board_info[] __initdata = {
[0] = {
.modalias = "lcd_mipid",
.bus_num = 2,
.chip_select = 3,
.max_speed_hz = 12000000,
.platform_data = &nokia770_mipid_platform_data,
},
[1] = {
.modalias = "ads7846",
.bus_num = 2,
.chip_select = 0,
.max_speed_hz = 2500000,
.irq = OMAP_GPIO_IRQ(15),
.platform_data = &nokia770_ads7846_platform_data,
},
};
/* assume no Mini-AB port */
static struct omap_usb_config nokia770_usb_config __initdata = {
.otg = 1,
.register_host = 1,
.register_dev = 1,
.hmc_mode = 16,
.pins[0] = 6,
};
static struct omap_mmc_config nokia770_mmc_config __initdata = {
.mmc[0] = {
.enabled = 0,
.wire4 = 0,
.wp_pin = -1,
.power_pin = -1,
.switch_pin = -1,
},
.mmc[1] = {
.enabled = 0,
.wire4 = 0,
.wp_pin = -1,
.power_pin = -1,
.switch_pin = -1,
},
};
static struct omap_board_config_kernel nokia770_config[] = {
{ OMAP_TAG_USB, NULL },
{ OMAP_TAG_MMC, &nokia770_mmc_config },
};
#if defined(CONFIG_OMAP_DSP)
/*
* audio power control
*/
#define HEADPHONE_GPIO 14
#define AMPLIFIER_CTRL_GPIO 58
static struct clk *dspxor_ck;
static DECLARE_MUTEX(audio_pwr_sem);
/*
* audio_pwr_state
* +--+-------------------------+---------------------------------------+
* |-1|down |power-up request -> 0 |
* +--+-------------------------+---------------------------------------+
* | 0|up |power-down(1) request -> 1 |
* | | |power-down(2) request -> (ignore) |
* +--+-------------------------+---------------------------------------+
* | 1|up, |power-up request -> 0 |
* | |received down(1) request |power-down(2) request -> -1 |
* +--+-------------------------+---------------------------------------+
*/
static int audio_pwr_state = -1;
/*
* audio_pwr_up / down should be called under audio_pwr_sem
*/
static void nokia770_audio_pwr_up(void)
{
clk_enable(dspxor_ck);
/* Turn on codec */
aic23_power_up();
if (omap_get_gpio_datain(HEADPHONE_GPIO))
/* HP not connected, turn on amplifier */
omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1);
else
/* HP connected, do not turn on amplifier */
printk("HP connected\n");
}
static void codec_delayed_power_down(struct work_struct *work)
{
down(&audio_pwr_sem);
if (audio_pwr_state == -1)
aic23_power_down();
clk_disable(dspxor_ck);
up(&audio_pwr_sem);
}
static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
static void nokia770_audio_pwr_down(void)
{
/* Turn off amplifier */
omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0);
/* Turn off codec: schedule delayed work */
schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
}
static int
nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
{
down(&audio_pwr_sem);
if (audio_pwr_state == -1)
nokia770_audio_pwr_up();
/* force audio_pwr_state = 0, even if it was 1. */
audio_pwr_state = 0;
up(&audio_pwr_sem);
return 0;
}
static int
nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
{
down(&audio_pwr_sem);
switch (stage) {
case 1:
if (audio_pwr_state == 0)
audio_pwr_state = 1;
break;
case 2:
if (audio_pwr_state == 1) {
nokia770_audio_pwr_down();
audio_pwr_state = -1;
}
break;
}
up(&audio_pwr_sem);
return 0;
}
static struct dsp_kfunc_device nokia770_audio_device = {
.name = "audio",
.type = DSP_KFUNC_DEV_TYPE_AUDIO,
.enable = nokia770_audio_pwr_up_request,
.disable = nokia770_audio_pwr_down_request,
};
static __init int omap_dsp_init(void)
{
int ret;
dspxor_ck = clk_get(0, "dspxor_ck");
if (IS_ERR(dspxor_ck)) {
printk(KERN_ERR "couldn't acquire dspxor_ck\n");
return PTR_ERR(dspxor_ck);
}
ret = dsp_kfunc_device_register(&nokia770_audio_device);
if (ret) {
printk(KERN_ERR
"KFUNC device registration faild: %s\n",
nokia770_audio_device.name);
goto out;
}
return 0;
out:
return ret;
}
#else
#define omap_dsp_init() do {} while (0)
#endif /* CONFIG_OMAP_DSP */
static void __init omap_nokia770_init(void)
{
nokia770_config[0].data = &nokia770_usb_config;
platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
spi_register_board_info(nokia770_spi_board_info,
ARRAY_SIZE(nokia770_spi_board_info));
omap_board_config = nokia770_config;
omap_board_config_size = ARRAY_SIZE(nokia770_config);
omap_gpio_init();
omap_serial_init();
omap_register_i2c_bus(1, 100, NULL, 0);
omap_dsp_init();
ads7846_dev_init();
mipid_dev_init();
}
static void __init omap_nokia770_map_io(void)
{
omap1_map_common_io();
}
MACHINE_START(NOKIA770, "Nokia 770")
.phys_io = 0xfff00000,
.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
.boot_params = 0x10000100,
.map_io = omap_nokia770_map_io,
.init_irq = omap_nokia770_init_irq,
.init_machine = omap_nokia770_init,
.timer = &omap_timer,
MACHINE_END
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