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ARM: OMAP1: Palm Tungsten E board clean-up
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Mostly gpio clean-up.

Signed-off-by: Andrzej Zaborowski <balrog@zabor.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Andrzej Zaborowski authored and Tony Lindgren committed Feb 8, 2008
1 parent 1ed16a8 commit d7730cc
Showing 1 changed file with 22 additions and 61 deletions.
83 changes: 22 additions & 61 deletions arch/arm/mach-omap1/board-palmte.c
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,8 @@
* Maintainers : http://palmtelinux.sf.net
* palmtelinux-developpers@lists.sf.net
*
* Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
*
* 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.
Expand All @@ -24,8 +26,8 @@
#include <linux/spi/spi.h>
#include <linux/spi/tsc2102.h>
#include <linux/interrupt.h>
#include <linux/apm-emulation.h>

#include <asm/apm.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
Expand All @@ -51,11 +53,11 @@ static void __init omap_palmte_init_irq(void)
omap_gpio_init();
}

static int palmte_keymap[] = {
KEY(0, 0, KEY_F1),
KEY(0, 1, KEY_F2),
KEY(0, 2, KEY_F3),
KEY(0, 3, KEY_F4),
static const int palmte_keymap[] = {
KEY(0, 0, KEY_F1), /* Calendar */
KEY(0, 1, KEY_F2), /* Contacts */
KEY(0, 2, KEY_F3), /* Tasks List */
KEY(0, 3, KEY_F4), /* Note Pad */
KEY(0, 4, KEY_POWER),
KEY(1, 0, KEY_LEFT),
KEY(1, 1, KEY_DOWN),
Expand All @@ -68,7 +70,7 @@ static int palmte_keymap[] = {
static struct omap_kp_platform_data palmte_kp_data = {
.rows = 8,
.cols = 8,
.keymap = palmte_keymap,
.keymap = (int *) palmte_keymap,
.rep = 1,
.delay = 12,
};
Expand Down Expand Up @@ -180,7 +182,7 @@ static struct platform_device palmte_irda_device = {
.resource = palmte_irda_resources,
};

static struct platform_device *devices[] __initdata = {
static struct platform_device *palmte_devices[] __initdata = {
&palmte_rom_device,
&palmte_kp_device,
&palmte_lcd_device,
Expand Down Expand Up @@ -273,7 +275,7 @@ static void palmte_get_power_status(struct apm_power_info *info, int *battery)
info->time = 0;
} else {
while (hi > lo + 1) {
mid = (hi + lo) >> 2;
mid = (hi + lo) >> 1;
if (batt <= palmte_battery_sample[mid])
lo = mid;
else
Expand Down Expand Up @@ -321,7 +323,7 @@ static struct tsc2102_config palmte_tsc2102_config = {
.alsa_config = &palmte_alsa_config,
};

static struct omap_board_config_kernel palmte_config[] = {
static struct omap_board_config_kernel palmte_config[] __initdata = {
{ OMAP_TAG_USB, &palmte_usb_config },
{ OMAP_TAG_MMC, &palmte_mmc_config },
{ OMAP_TAG_LCD, &palmte_lcd_config },
Expand All @@ -339,88 +341,47 @@ static struct spi_board_info palmte_spi_info[] __initdata = {
},
};

/* Periodically check for changes on important input pins */
struct timer_list palmte_pin_timer;
int prev_power, prev_headphones;

static void palmte_pin_handler(unsigned long data) {
int power, headphones;

power = !omap_get_gpio_datain(PALMTE_DC_GPIO);
headphones = omap_get_gpio_datain(PALMTE_HEADPHONES_GPIO);

if (power && !prev_power)
printk(KERN_INFO "PM: cable connected\n");
else if (!power && prev_power)
printk(KERN_INFO "PM: cable disconnected\n");

if (headphones && !prev_headphones) {
static void palmte_headphones_detect(void *data, int state)
{
if (state) {
/* Headphones connected, disable speaker */
omap_set_gpio_dataout(PALMTE_SPEAKER_GPIO, 0);
printk(KERN_INFO "PM: speaker off\n");
} else if (!headphones && prev_headphones) {
} else {
/* Headphones unplugged, re-enable speaker */
omap_set_gpio_dataout(PALMTE_SPEAKER_GPIO, 1);
printk(KERN_INFO "PM: speaker on\n");
}

prev_power = power;
prev_headphones = headphones;
mod_timer(&palmte_pin_timer, jiffies + msecs_to_jiffies(500));
}

static void __init palmte_gpio_setup(void)
static void __init palmte_misc_gpio_setup(void)
{
/* Set TSC2102 PINTDAV pin as input */
/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
if (omap_request_gpio(PALMTE_PINTDAV_GPIO)) {
printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
return;
}
omap_set_gpio_direction(PALMTE_PINTDAV_GPIO, 1);

/* Monitor cable-connected signals */
if (omap_request_gpio(PALMTE_DC_GPIO) ||
omap_request_gpio(PALMTE_USB_OR_DC_GPIO) ||
omap_request_gpio(PALMTE_USBDETECT_GPIO)) {
/* Set USB-or-DC-IN pin as input (unused) */
if (omap_request_gpio(PALMTE_USB_OR_DC_GPIO)) {
printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
return;
}
omap_set_gpio_direction(PALMTE_DC_GPIO, 1);
omap_set_gpio_direction(PALMTE_USB_OR_DC_GPIO, 1);
omap_set_gpio_direction(PALMTE_USBDETECT_GPIO, 1);

/* Set speaker-enable pin as output */
if (omap_request_gpio(PALMTE_SPEAKER_GPIO)) {
printk(KERN_ERR "Could not reserve speaker GPIO!\n");
return;
}
omap_set_gpio_direction(PALMTE_SPEAKER_GPIO, 0);

/* Monitor the headphones-connected signal */
if (omap_request_gpio(PALMTE_HEADPHONES_GPIO)) {
printk(KERN_ERR "Could not reserve headphones signal GPIO!\n");
return;
}
omap_set_gpio_direction(PALMTE_HEADPHONES_GPIO, 1);

prev_power = omap_get_gpio_datain(PALMTE_DC_GPIO);
prev_headphones = !omap_get_gpio_datain(PALMTE_HEADPHONES_GPIO);
setup_timer(&palmte_pin_timer, palmte_pin_handler, 0);
palmte_pin_handler(0);
}

static void __init omap_palmte_init(void)
{
omap_board_config = palmte_config;
omap_board_config_size = ARRAY_SIZE(palmte_config);

platform_add_devices(devices, ARRAY_SIZE(devices));
platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));

spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));

palmte_misc_gpio_setup();
omap_serial_init();
omap_register_i2c_bus(1, 100, NULL, 0);
palmte_gpio_setup();
}

static void __init omap_palmte_map_io(void)
Expand Down

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