[ARM] sa1100: remove unused collie_pm.c

This file was never enabled in the mainline kernel, new ongoing work on
battery driver by Thomas Kunze makes it completely obsolete, so remove
it now.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>

arch/arm/mach-sa1100/collie_pm.c

@@ -1,296 +0,0 @@
-/*
- * Based on spitz_pm.c and sharp code.
- *
- * Copyright (C) 2001  SHARP
- * Copyright 2005 Pavel Machek <pavel@suse.cz>
- *
- * Distribute under GPLv2.
- *
- * Li-ion batteries are angry beasts, and they like to explode. This driver is not finished,
- * and sometimes charges them when it should not. If it makes angry lithium to come your way...
- * ...well, you have been warned.
- *
- * Actually, this should be quite safe, it seems sharp leaves charger enabled by default,
- * and my collie did not explode (yet).
- */
-
-#include <linux/module.h>
-#include <linux/stat.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-#include <asm/hardware/scoop.h>
-#include <mach/dma.h>
-#include <mach/collie.h>
-#include <asm/mach/sharpsl_param.h>
-#include <asm/hardware/sharpsl_pm.h>
-
-#include "../drivers/mfd/ucb1x00.h"
-
-static struct ucb1x00 *ucb;
-static int ad_revise;
-
-#define ADCtoPower(x)	       ((330 * x * 2) / 1024)
-
-static void collie_charger_init(void)
-{
-	int err;
-
-	if (sharpsl_param.adadj != -1)
-		ad_revise = sharpsl_param.adadj;
-
-	/* Register interrupt handler. */
-	if ((err = request_irq(COLLIE_IRQ_GPIO_AC_IN, sharpsl_ac_isr, IRQF_DISABLED,
-			       "ACIN", sharpsl_ac_isr))) {
-		printk("Could not get irq %d.\n", COLLIE_IRQ_GPIO_AC_IN);
-		return;
-	}
-	if ((err = request_irq(COLLIE_IRQ_GPIO_CO, sharpsl_chrg_full_isr, IRQF_DISABLED,
-			       "CO", sharpsl_chrg_full_isr))) {
-		free_irq(COLLIE_IRQ_GPIO_AC_IN, sharpsl_ac_isr);
-		printk("Could not get irq %d.\n", COLLIE_IRQ_GPIO_CO);
-		return;
-	}
-
-	gpio_request(COLLIE_GPIO_CHARGE_ON, "charge on");
-	gpio_direction_output(COLLIE_GPIO_CHARGE_ON, 1);
-
-	ucb1x00_io_set_dir(ucb, 0, COLLIE_TC35143_GPIO_MBAT_ON | COLLIE_TC35143_GPIO_TMP_ON |
-			           COLLIE_TC35143_GPIO_BBAT_ON);
-	return;
-}
-
-static void collie_measure_temp(int on)
-{
-	if (on)
-		ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_TMP_ON, 0);
-	else
-		ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_TMP_ON);
-}
-
-static void collie_charge(int on)
-{
-	/* Zaurus seems to contain LTC1731; it should know when to
-	 * stop charging itself, so setting charge on should be
-	 * relatively harmless (as long as it is not done too often).
-	 */
-	gpio_set_value(COLLIE_GPIO_CHARGE_ON, on);
-}
-
-static void collie_discharge(int on)
-{
-}
-
-static void collie_discharge1(int on)
-{
-}
-
-static void collie_presuspend(void)
-{
-}
-
-static void collie_postsuspend(void)
-{
-}
-
-static int collie_should_wakeup(unsigned int resume_on_alarm)
-{
-	return 0;
-}
-
-static unsigned long collie_charger_wakeup(void)
-{
-	return 0;
-}
-
-int collie_read_backup_battery(void)
-{
-	int voltage;
-
-	ucb1x00_adc_enable(ucb);
-
-	ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_BBAT_ON, 0);
-	voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD1, UCB_SYNC);
-
-	ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_BBAT_ON);
-	ucb1x00_adc_disable(ucb);
-
-	printk("Backup battery = %d(%d)\n", ADCtoPower(voltage), voltage);
-
-	return ADCtoPower(voltage);
-}
-
-int collie_read_main_battery(void)
-{
-	int voltage, voltage_rev, voltage_volts;
-
-	ucb1x00_adc_enable(ucb);
-	ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_BBAT_ON);
-	ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_MBAT_ON, 0);
-
-	mdelay(1);
-	voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD1, UCB_SYNC);
-
-	ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_MBAT_ON);
-	ucb1x00_adc_disable(ucb);
-
-	voltage_rev = voltage + ((ad_revise * voltage) / 652);
-	voltage_volts = ADCtoPower(voltage_rev);
-
-	printk("Main battery = %d(%d)\n", voltage_volts, voltage);
-
-	if (voltage != -1)
-		return voltage_volts;
-	else
-		return voltage;
-}
-
-int collie_read_temp(void)
-{
-	int voltage;
-
-	/* According to Sharp, temp must be > 973, main battery must be < 465,
-	   FIXME: sharpsl_pm.c has both conditions negated? FIXME: values
-	   are way out of range? */
-
-	ucb1x00_adc_enable(ucb);
-	ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_TMP_ON, 0);
-	/* >1010 = battery removed, 460 = 22C ?, higher = lower temp ? */
-	voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD0, UCB_SYNC);
-	ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_TMP_ON);
-	ucb1x00_adc_disable(ucb);
-
-	printk("Battery temp = %d\n", voltage);
-	return voltage;
-}
-
-static unsigned long read_devdata(int which)
-{
-	switch (which) {
-	case SHARPSL_BATT_VOLT:
-		return collie_read_main_battery();
-	case SHARPSL_BATT_TEMP:
-		return collie_read_temp();
-	case SHARPSL_ACIN_VOLT:
-		return 500;
-	case SHARPSL_STATUS_ACIN: {
-		int ret = GPLR & COLLIE_GPIO_AC_IN;
-		printk("AC status = %d\n", ret);
-		return ret;
-	}
-	case SHARPSL_STATUS_FATAL: {
-		int ret = GPLR & COLLIE_GPIO_MAIN_BAT_LOW;
-		printk("Fatal bat = %d\n", ret);
-		return ret;
-	}
-	default:
-		return ~0;
-	}
-}
-
-struct battery_thresh collie_battery_levels_acin[] = {
-	{ 420, 100},
-	{ 417,  95},
-	{ 415,  90},
-	{ 413,  80},
-	{ 411,  75},
-	{ 408,  70},
-	{ 406,  60},
-	{ 403,  50},
-	{ 398,  40},
-	{ 391,  25},
-	{  10,   5},
-	{   0,   0},
-};
-
-struct battery_thresh collie_battery_levels[] = {
-	{ 394, 100},
-	{ 390,  95},
-	{ 380,  90},
-	{ 370,  80},
-	{ 368,  75},	/* From sharp code: battery high with frontlight */
-	{ 366,  70},	/* 60..90 -- fake values invented by me for testing */
-	{ 364,  60},
-	{ 362,  50},
-	{ 360,  40},
-	{ 358,  25},	/* From sharp code: battery low with frontlight */
-	{ 356,   5},	/* From sharp code: battery verylow with frontlight */
-	{   0,   0},
-};
-
-struct sharpsl_charger_machinfo collie_pm_machinfo = {
-	.init             = collie_charger_init,
-	.read_devdata	  = read_devdata,
-	.discharge        = collie_discharge,
-	.discharge1       = collie_discharge1,
-	.charge           = collie_charge,
-	.measure_temp     = collie_measure_temp,
-	.presuspend       = collie_presuspend,
-	.postsuspend      = collie_postsuspend,
-	.charger_wakeup   = collie_charger_wakeup,
-	.should_wakeup    = collie_should_wakeup,
-	.bat_levels       = 12,
-	.bat_levels_noac  = collie_battery_levels,
-	.bat_levels_acin  = collie_battery_levels_acin,
-	.status_high_acin = 368,
-	.status_low_acin  = 358,
-	.status_high_noac = 368,
-	.status_low_noac  = 358,
-	.charge_on_volt	  = 350,	/* spitz uses 2.90V, but lets play it safe. */
-	.charge_on_temp   = 550,
-	.charge_acin_high = 550,	/* collie does not seem to have sensor for this, anyway */
-	.charge_acin_low  = 450,	/* ignored, too */
-	.fatal_acin_volt  = 356,
-	.fatal_noacin_volt = 356,
-
-	.batfull_irq = 1,		/* We do not want periodical charge restarts */
-};
-
-static int __init collie_pm_ucb_add(struct ucb1x00_dev *pdev)
-{
-	sharpsl_pm.machinfo = &collie_pm_machinfo;
-	ucb = pdev->ucb;
-	return 0;
-}
-
-static struct ucb1x00_driver collie_pm_ucb_driver = {
-	.add	= collie_pm_ucb_add,
-};
-
-static struct platform_device *collie_pm_device;
-
-static int __init collie_pm_init(void)
-{
-	int ret;
-
-	collie_pm_device = platform_device_alloc("sharpsl-pm", -1);
-	if (!collie_pm_device)
-		return -ENOMEM;
-
-	collie_pm_device->dev.platform_data = &collie_pm_machinfo;
-	ret = platform_device_add(collie_pm_device);
-
-	if (ret)
-		platform_device_put(collie_pm_device);
-
-	if (!ret)
-		ret = ucb1x00_register_driver(&collie_pm_ucb_driver);
-
-	return ret;
-}
-
-static void __exit collie_pm_exit(void)
-{
-	ucb1x00_unregister_driver(&collie_pm_ucb_driver);
-	platform_device_unregister(collie_pm_device);
-}
-
-module_init(collie_pm_init);
-module_exit(collie_pm_exit);