Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 1765 deletions

diff --git a/ANDROID_3.4.5/drivers/mfd/sm501.c b/ANDROID_3.4.5/drivers/mfd/sm501.c
deleted file mode 100644
index d927dd49..00000000
--- a/ANDROID_3.4.5/drivers/mfd/sm501.c
+++ /dev/null
@@ -1,1765 +0,0 @@
-/* linux/drivers/mfd/sm501.c
- *
- * Copyright (C) 2006 Simtec Electronics
- *	Ben Dooks <ben@simtec.co.uk>
- *	Vincent Sanders <vince@simtec.co.uk>
- *
- * 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.
- *
- * SM501 MFD driver
-*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/pci.h>
-#include <linux/i2c-gpio.h>
-#include <linux/slab.h>
-
-#include <linux/sm501.h>
-#include <linux/sm501-regs.h>
-#include <linux/serial_8250.h>
-
-#include <linux/io.h>
-
-struct sm501_device {
-	struct list_head		list;
-	struct platform_device		pdev;
-};
-
-struct sm501_gpio;
-
-#ifdef CONFIG_MFD_SM501_GPIO
-#include <linux/gpio.h>
-
-struct sm501_gpio_chip {
-	struct gpio_chip	gpio;
-	struct sm501_gpio	*ourgpio;	/* to get back to parent. */
-	void __iomem		*regbase;
-	void __iomem		*control;	/* address of control reg. */
-};
-
-struct sm501_gpio {
-	struct sm501_gpio_chip	low;
-	struct sm501_gpio_chip	high;
-	spinlock_t		lock;
-
-	unsigned int		 registered : 1;
-	void __iomem		*regs;
-	struct resource		*regs_res;
-};
-#else
-struct sm501_gpio {
-	/* no gpio support, empty definition for sm501_devdata. */
-};
-#endif
-
-struct sm501_devdata {
-	spinlock_t			 reg_lock;
-	struct mutex			 clock_lock;
-	struct list_head		 devices;
-	struct sm501_gpio		 gpio;
-
-	struct device			*dev;
-	struct resource			*io_res;
-	struct resource			*mem_res;
-	struct resource			*regs_claim;
-	struct sm501_platdata		*platdata;
-
-
-	unsigned int			 in_suspend;
-	unsigned long			 pm_misc;
-
-	int				 unit_power[20];
-	unsigned int			 pdev_id;
-	unsigned int			 irq;
-	void __iomem			*regs;
-	unsigned int			 rev;
-};
-
-
-#define MHZ (1000 * 1000)
-
-#ifdef DEBUG
-static const unsigned int div_tab[] = {
-	[0]		= 1,
-	[1]		= 2,
-	[2]		= 4,
-	[3]		= 8,
-	[4]		= 16,
-	[5]		= 32,
-	[6]		= 64,
-	[7]		= 128,
-	[8]		= 3,
-	[9]		= 6,
-	[10]	        = 12,
-	[11]		= 24,
-	[12]		= 48,
-	[13]		= 96,
-	[14]		= 192,
-	[15]		= 384,
-	[16]		= 5,
-	[17]		= 10,
-	[18]		= 20,
-	[19]		= 40,
-	[20]		= 80,
-	[21]		= 160,
-	[22]		= 320,
-	[23]		= 604,
-};
-
-static unsigned long decode_div(unsigned long pll2, unsigned long val,
-				unsigned int lshft, unsigned int selbit,
-				unsigned long mask)
-{
-	if (val & selbit)
-		pll2 = 288 * MHZ;
-
-	return pll2 / div_tab[(val >> lshft) & mask];
-}
-
-#define fmt_freq(x) ((x) / MHZ), ((x) % MHZ), (x)
-
-/* sm501_dump_clk
- *
- * Print out the current clock configuration for the device
-*/
-
-static void sm501_dump_clk(struct sm501_devdata *sm)
-{
-	unsigned long misct = smc501_readl(sm->regs + SM501_MISC_TIMING);
-	unsigned long pm0 = smc501_readl(sm->regs + SM501_POWER_MODE_0_CLOCK);
-	unsigned long pm1 = smc501_readl(sm->regs + SM501_POWER_MODE_1_CLOCK);
-	unsigned long pmc = smc501_readl(sm->regs + SM501_POWER_MODE_CONTROL);
-	unsigned long sdclk0, sdclk1;
-	unsigned long pll2 = 0;
-
-	switch (misct & 0x30) {
-	case 0x00:
-		pll2 = 336 * MHZ;
-		break;
-	case 0x10:
-		pll2 = 288 * MHZ;
-		break;
-	case 0x20:
-		pll2 = 240 * MHZ;
-		break;
-	case 0x30:
-		pll2 = 192 * MHZ;
-		break;
-	}
-
-	sdclk0 = (misct & (1<<12)) ? pll2 : 288 * MHZ;
-	sdclk0 /= div_tab[((misct >> 8) & 0xf)];
-
-	sdclk1 = (misct & (1<<20)) ? pll2 : 288 * MHZ;
-	sdclk1 /= div_tab[((misct >> 16) & 0xf)];
-
-	dev_dbg(sm->dev, "MISCT=%08lx, PM0=%08lx, PM1=%08lx\n",
-		misct, pm0, pm1);
-
-	dev_dbg(sm->dev, "PLL2 = %ld.%ld MHz (%ld), SDCLK0=%08lx, SDCLK1=%08lx\n",
-		fmt_freq(pll2), sdclk0, sdclk1);
-
-	dev_dbg(sm->dev, "SDRAM: PM0=%ld, PM1=%ld\n", sdclk0, sdclk1);
-
-	dev_dbg(sm->dev, "PM0[%c]: "
-		 "P2 %ld.%ld MHz (%ld), V2 %ld.%ld (%ld), "
-		 "M %ld.%ld (%ld), MX1 %ld.%ld (%ld)\n",
-		 (pmc & 3 ) == 0 ? '*' : '-',
-		 fmt_freq(decode_div(pll2, pm0, 24, 1<<29, 31)),
-		 fmt_freq(decode_div(pll2, pm0, 16, 1<<20, 15)),
-		 fmt_freq(decode_div(pll2, pm0, 8,  1<<12, 15)),
-		 fmt_freq(decode_div(pll2, pm0, 0,  1<<4,  15)));
-
-	dev_dbg(sm->dev, "PM1[%c]: "
-		"P2 %ld.%ld MHz (%ld), V2 %ld.%ld (%ld), "
-		"M %ld.%ld (%ld), MX1 %ld.%ld (%ld)\n",
-		(pmc & 3 ) == 1 ? '*' : '-',
-		fmt_freq(decode_div(pll2, pm1, 24, 1<<29, 31)),
-		fmt_freq(decode_div(pll2, pm1, 16, 1<<20, 15)),
-		fmt_freq(decode_div(pll2, pm1, 8,  1<<12, 15)),
-		fmt_freq(decode_div(pll2, pm1, 0,  1<<4,  15)));
-}
-
-static void sm501_dump_regs(struct sm501_devdata *sm)
-{
-	void __iomem *regs = sm->regs;
-
-	dev_info(sm->dev, "System Control   %08x\n",
-			smc501_readl(regs + SM501_SYSTEM_CONTROL));
-	dev_info(sm->dev, "Misc Control     %08x\n",
-			smc501_readl(regs + SM501_MISC_CONTROL));
-	dev_info(sm->dev, "GPIO Control Low %08x\n",
-			smc501_readl(regs + SM501_GPIO31_0_CONTROL));
-	dev_info(sm->dev, "GPIO Control Hi  %08x\n",
-			smc501_readl(regs + SM501_GPIO63_32_CONTROL));
-	dev_info(sm->dev, "DRAM Control     %08x\n",
-			smc501_readl(regs + SM501_DRAM_CONTROL));
-	dev_info(sm->dev, "Arbitration Ctrl %08x\n",
-			smc501_readl(regs + SM501_ARBTRTN_CONTROL));
-	dev_info(sm->dev, "Misc Timing      %08x\n",
-			smc501_readl(regs + SM501_MISC_TIMING));
-}
-
-static void sm501_dump_gate(struct sm501_devdata *sm)
-{
-	dev_info(sm->dev, "CurrentGate      %08x\n",
-			smc501_readl(sm->regs + SM501_CURRENT_GATE));
-	dev_info(sm->dev, "CurrentClock     %08x\n",
-			smc501_readl(sm->regs + SM501_CURRENT_CLOCK));
-	dev_info(sm->dev, "PowerModeControl %08x\n",
-			smc501_readl(sm->regs + SM501_POWER_MODE_CONTROL));
-}
-
-#else
-static inline void sm501_dump_gate(struct sm501_devdata *sm) { }
-static inline void sm501_dump_regs(struct sm501_devdata *sm) { }
-static inline void sm501_dump_clk(struct sm501_devdata *sm) { }
-#endif
-
-/* sm501_sync_regs
- *
- * ensure the
-*/
-
-static void sm501_sync_regs(struct sm501_devdata *sm)
-{
-	smc501_readl(sm->regs);
-}
-
-static inline void sm501_mdelay(struct sm501_devdata *sm, unsigned int delay)
-{
-	/* during suspend/resume, we are currently not allowed to sleep,
-	 * so change to using mdelay() instead of msleep() if we
-	 * are in one of these paths */
-
-	if (sm->in_suspend)
-		mdelay(delay);
-	else
-		msleep(delay);
-}
-
-/* sm501_misc_control
- *
- * alters the miscellaneous control parameters
-*/
-
-int sm501_misc_control(struct device *dev,
-		       unsigned long set, unsigned long clear)
-{
-	struct sm501_devdata *sm = dev_get_drvdata(dev);
-	unsigned long misc;
-	unsigned long save;
-	unsigned long to;
-
-	spin_lock_irqsave(&sm->reg_lock, save);
-
-	misc = smc501_readl(sm->regs + SM501_MISC_CONTROL);
-	to = (misc & ~clear) | set;
-
-	if (to != misc) {
-		smc501_writel(to, sm->regs + SM501_MISC_CONTROL);
-		sm501_sync_regs(sm);
-
-		dev_dbg(sm->dev, "MISC_CONTROL %08lx\n", misc);
-	}
-
-	spin_unlock_irqrestore(&sm->reg_lock, save);
-	return to;
-}
-
-EXPORT_SYMBOL_GPL(sm501_misc_control);
-
-/* sm501_modify_reg
- *
- * Modify a register in the SM501 which may be shared with other
- * drivers.
-*/
-
-unsigned long sm501_modify_reg(struct device *dev,
-			       unsigned long reg,
-			       unsigned long set,
-			       unsigned long clear)
-{
-	struct sm501_devdata *sm = dev_get_drvdata(dev);
-	unsigned long data;
-	unsigned long save;
-
-	spin_lock_irqsave(&sm->reg_lock, save);
-
-	data = smc501_readl(sm->regs + reg);
-	data |= set;
-	data &= ~clear;
-
-	smc501_writel(data, sm->regs + reg);
-	sm501_sync_regs(sm);
-
-	spin_unlock_irqrestore(&sm->reg_lock, save);
-
-	return data;
-}
-
-EXPORT_SYMBOL_GPL(sm501_modify_reg);
-
-/* sm501_unit_power
- *
- * alters the power active gate to set specific units on or off
- */
-
-int sm501_unit_power(struct device *dev, unsigned int unit, unsigned int to)
-{
-	struct sm501_devdata *sm = dev_get_drvdata(dev);
-	unsigned long mode;
-	unsigned long gate;
-	unsigned long clock;
-
-	mutex_lock(&sm->clock_lock);
-
-	mode = smc501_readl(sm->regs + SM501_POWER_MODE_CONTROL);
-	gate = smc501_readl(sm->regs + SM501_CURRENT_GATE);
-	clock = smc501_readl(sm->regs + SM501_CURRENT_CLOCK);
-
-	mode &= 3;		/* get current power mode */
-
-	if (unit >= ARRAY_SIZE(sm->unit_power)) {
-		dev_err(dev, "%s: bad unit %d\n", __func__, unit);
-		goto already;
-	}
-
-	dev_dbg(sm->dev, "%s: unit %d, cur %d, to %d\n", __func__, unit,
-		sm->unit_power[unit], to);
-
-	if (to == 0 && sm->unit_power[unit] == 0) {
-		dev_err(sm->dev, "unit %d is already shutdown\n", unit);
-		goto already;
-	}
-
-	sm->unit_power[unit] += to ? 1 : -1;
-	to = sm->unit_power[unit] ? 1 : 0;
-
-	if (to) {
-		if (gate & (1 << unit))
-			goto already;
-		gate |= (1 << unit);
-	} else {
-		if (!(gate & (1 << unit)))
-			goto already;
-		gate &= ~(1 << unit);
-	}
-
-	switch (mode) {
-	case 1:
-		smc501_writel(gate, sm->regs + SM501_POWER_MODE_0_GATE);
-		smc501_writel(clock, sm->regs + SM501_POWER_MODE_0_CLOCK);
-		mode = 0;
-		break;
-	case 2:
-	case 0:
-		smc501_writel(gate, sm->regs + SM501_POWER_MODE_1_GATE);
-		smc501_writel(clock, sm->regs + SM501_POWER_MODE_1_CLOCK);
-		mode = 1;
-		break;
-
-	default:
-		gate = -1;
-		goto already;
-	}
-
-	smc501_writel(mode, sm->regs + SM501_POWER_MODE_CONTROL);
-	sm501_sync_regs(sm);
-
-	dev_dbg(sm->dev, "gate %08lx, clock %08lx, mode %08lx\n",
-		gate, clock, mode);
-
-	sm501_mdelay(sm, 16);
-
- already:
-	mutex_unlock(&sm->clock_lock);
-	return gate;
-}
-
-EXPORT_SYMBOL_GPL(sm501_unit_power);
-
-/* clock value structure. */
-struct sm501_clock {
-	unsigned long mclk;
-	int divider;
-	int shift;
-	unsigned int m, n, k;
-};
-
-/* sm501_calc_clock
- *
- * Calculates the nearest discrete clock frequency that
- * can be achieved with the specified input clock.
- *   the maximum divisor is 3 or 5
- */
-
-static int sm501_calc_clock(unsigned long freq,
-			    struct sm501_clock *clock,
-			    int max_div,
-			    unsigned long mclk,
-			    long *best_diff)
-{
-	int ret = 0;
-	int divider;
-	int shift;
-	long diff;
-
-	/* try dividers 1 and 3 for CRT and for panel,
-	   try divider 5 for panel only.*/
-
-	for (divider = 1; divider <= max_div; divider += 2) {
-		/* try all 8 shift values.*/
-		for (shift = 0; shift < 8; shift++) {
-			/* Calculate difference to requested clock */
-			diff = DIV_ROUND_CLOSEST(mclk, divider << shift) - freq;
-			if (diff < 0)
-				diff = -diff;
-
-			/* If it is less than the current, use it */
-			if (diff < *best_diff) {
-				*best_diff = diff;
-
-				clock->mclk = mclk;
-				clock->divider = divider;
-				clock->shift = shift;
-				ret = 1;
-			}
-		}
-	}
-
-	return ret;
-}
-
-/* sm501_calc_pll
- *
- * Calculates the nearest discrete clock frequency that can be
- * achieved using the programmable PLL.
- *   the maximum divisor is 3 or 5
- */
-
-static unsigned long sm501_calc_pll(unsigned long freq,
-					struct sm501_clock *clock,
-					int max_div)
-{
-	unsigned long mclk;
-	unsigned int m, n, k;
-	long best_diff = 999999999;
-
-	/*
-	 * The SM502 datasheet doesn't specify the min/max values for M and N.
-	 * N = 1 at least doesn't work in practice.
-	 */
-	for (m = 2; m <= 255; m++) {
-		for (n = 2; n <= 127; n++) {
-			for (k = 0; k <= 1; k++) {
-				mclk = (24000000UL * m / n) >> k;
-
-				if (sm501_calc_clock(freq, clock, max_div,
-						     mclk, &best_diff)) {
-					clock->m = m;
-					clock->n = n;
-					clock->k = k;
-				}
-			}
-		}
-	}
-
-	/* Return best clock. */
-	return clock->mclk / (clock->divider << clock->shift);
-}
-
-/* sm501_select_clock
- *
- * Calculates the nearest discrete clock frequency that can be
- * achieved using the 288MHz and 336MHz PLLs.
- *   the maximum divisor is 3 or 5
- */
-
-static unsigned long sm501_select_clock(unsigned long freq,
-					struct sm501_clock *clock,
-					int max_div)
-{
-	unsigned long mclk;
-	long best_diff = 999999999;
-
-	/* Try 288MHz and 336MHz clocks. */
-	for (mclk = 288000000; mclk <= 336000000; mclk += 48000000) {
-		sm501_calc_clock(freq, clock, max_div, mclk, &best_diff);
-	}
-
-	/* Return best clock. */
-	return clock->mclk / (clock->divider << clock->shift);
-}
-
-/* sm501_set_clock
- *
- * set one of the four clock sources to the closest available frequency to
- *  the one specified
-*/
-
-unsigned long sm501_set_clock(struct device *dev,
-			      int clksrc,
-			      unsigned long req_freq)
-{
-	struct sm501_devdata *sm = dev_get_drvdata(dev);
-	unsigned long mode = smc501_readl(sm->regs + SM501_POWER_MODE_CONTROL);
-	unsigned long gate = smc501_readl(sm->regs + SM501_CURRENT_GATE);
-	unsigned long clock = smc501_readl(sm->regs + SM501_CURRENT_CLOCK);
-	unsigned char reg;
-	unsigned int pll_reg = 0;
-	unsigned long sm501_freq; /* the actual frequency achieved */
-
-	struct sm501_clock to;
-
-	/* find achivable discrete frequency and setup register value
-	 * accordingly, V2XCLK, MCLK and M1XCLK are the same P2XCLK
-	 * has an extra bit for the divider */
-
-	switch (clksrc) {
-	case SM501_CLOCK_P2XCLK:
-		/* This clock is divided in half so to achieve the
-		 * requested frequency the value must be multiplied by
-		 * 2. This clock also has an additional pre divisor */
-
-		if (sm->rev >= 0xC0) {
-			/* SM502 -> use the programmable PLL */
-			sm501_freq = (sm501_calc_pll(2 * req_freq,
-						     &to, 5) / 2);
-			reg = to.shift & 0x07;/* bottom 3 bits are shift */
-			if (to.divider == 3)
-				reg |= 0x08; /* /3 divider required */
-			else if (to.divider == 5)
-				reg |= 0x10; /* /5 divider required */
-			reg |= 0x40; /* select the programmable PLL */
-			pll_reg = 0x20000 | (to.k << 15) | (to.n << 8) | to.m;
-		} else {
-			sm501_freq = (sm501_select_clock(2 * req_freq,
-							 &to, 5) / 2);
-			reg = to.shift & 0x07;/* bottom 3 bits are shift */
-			if (to.divider == 3)
-				reg |= 0x08; /* /3 divider required */
-			else if (to.divider == 5)
-				reg |= 0x10; /* /5 divider required */
-			if (to.mclk != 288000000)
-				reg |= 0x20; /* which mclk pll is source */
-		}
-		break;
-
-	case SM501_CLOCK_V2XCLK:
-		/* This clock is divided in half so to achieve the
-		 * requested frequency the value must be multiplied by 2. */
-
-		sm501_freq = (sm501_select_clock(2 * req_freq, &to, 3) / 2);
-		reg=to.shift & 0x07;	/* bottom 3 bits are shift */
-		if (to.divider == 3)
-			reg |= 0x08;	/* /3 divider required */
-		if (to.mclk != 288000000)
-			reg |= 0x10;	/* which mclk pll is source */
-		break;
-
-	case SM501_CLOCK_MCLK:
-	case SM501_CLOCK_M1XCLK:
-		/* These clocks are the same and not further divided */
-
-		sm501_freq = sm501_select_clock( req_freq, &to, 3);
-		reg=to.shift & 0x07;	/* bottom 3 bits are shift */
-		if (to.divider == 3)
-			reg |= 0x08;	/* /3 divider required */
-		if (to.mclk != 288000000)
-			reg |= 0x10;	/* which mclk pll is source */
-		break;
-
-	default:
-		return 0; /* this is bad */
-	}
-
-	mutex_lock(&sm->clock_lock);
-
-	mode = smc501_readl(sm->regs + SM501_POWER_MODE_CONTROL);
-	gate = smc501_readl(sm->regs + SM501_CURRENT_GATE);
-	clock = smc501_readl(sm->regs + SM501_CURRENT_CLOCK);
-
-	clock = clock & ~(0xFF << clksrc);
-	clock |= reg<<clksrc;
-
-	mode &= 3;	/* find current mode */
-
-	switch (mode) {
-	case 1:
-		smc501_writel(gate, sm->regs + SM501_POWER_MODE_0_GATE);
-		smc501_writel(clock, sm->regs + SM501_POWER_MODE_0_CLOCK);
-		mode = 0;
-		break;
-	case 2:
-	case 0:
-		smc501_writel(gate, sm->regs + SM501_POWER_MODE_1_GATE);
-		smc501_writel(clock, sm->regs + SM501_POWER_MODE_1_CLOCK);
-		mode = 1;
-		break;
-
-	default:
-		mutex_unlock(&sm->clock_lock);
-		return -1;
-	}
-
-	smc501_writel(mode, sm->regs + SM501_POWER_MODE_CONTROL);
-
-	if (pll_reg)
-		smc501_writel(pll_reg,
-				sm->regs + SM501_PROGRAMMABLE_PLL_CONTROL);
-
-	sm501_sync_regs(sm);
-
-	dev_dbg(sm->dev, "gate %08lx, clock %08lx, mode %08lx\n",
-		gate, clock, mode);
-
-	sm501_mdelay(sm, 16);
-	mutex_unlock(&sm->clock_lock);
-
-	sm501_dump_clk(sm);
-
-	return sm501_freq;
-}
-
-EXPORT_SYMBOL_GPL(sm501_set_clock);
-
-/* sm501_find_clock
- *
- * finds the closest available frequency for a given clock
-*/
-
-unsigned long sm501_find_clock(struct device *dev,
-			       int clksrc,
-			       unsigned long req_freq)
-{
-	struct sm501_devdata *sm = dev_get_drvdata(dev);
-	unsigned long sm501_freq; /* the frequency achieveable by the 501 */
-	struct sm501_clock to;
-
-	switch (clksrc) {
-	case SM501_CLOCK_P2XCLK:
-		if (sm->rev >= 0xC0) {
-			/* SM502 -> use the programmable PLL */
-			sm501_freq = (sm501_calc_pll(2 * req_freq,
-						     &to, 5) / 2);
-		} else {
-			sm501_freq = (sm501_select_clock(2 * req_freq,
-							 &to, 5) / 2);
-		}
-		break;
-
-	case SM501_CLOCK_V2XCLK:
-		sm501_freq = (sm501_select_clock(2 * req_freq, &to, 3) / 2);
-		break;
-
-	case SM501_CLOCK_MCLK:
-	case SM501_CLOCK_M1XCLK:
-		sm501_freq = sm501_select_clock(req_freq, &to, 3);
-		break;
-
-	default:
-		sm501_freq = 0;		/* error */
-	}
-
-	return sm501_freq;
-}
-
-EXPORT_SYMBOL_GPL(sm501_find_clock);
-
-static struct sm501_device *to_sm_device(struct platform_device *pdev)
-{
-	return container_of(pdev, struct sm501_device, pdev);
-}
-
-/* sm501_device_release
- *
- * A release function for the platform devices we create to allow us to
- * free any items we allocated
-*/
-
-static void sm501_device_release(struct device *dev)
-{
-	kfree(to_sm_device(to_platform_device(dev)));
-}
-
-/* sm501_create_subdev
- *
- * Create a skeleton platform device with resources for passing to a
- * sub-driver
-*/
-
-static struct platform_device *
-sm501_create_subdev(struct sm501_devdata *sm, char *name,
-		    unsigned int res_count, unsigned int platform_data_size)
-{
-	struct sm501_device *smdev;
-
-	smdev = kzalloc(sizeof(struct sm501_device) +
-			(sizeof(struct resource) * res_count) +
-			platform_data_size, GFP_KERNEL);
-	if (!smdev)
-		return NULL;
-
-	smdev->pdev.dev.release = sm501_device_release;
-
-	smdev->pdev.name = name;
-	smdev->pdev.id = sm->pdev_id;
-	smdev->pdev.dev.parent = sm->dev;
-
-	if (res_count) {
-		smdev->pdev.resource = (struct resource *)(smdev+1);
-		smdev->pdev.num_resources = res_count;
-	}
-	if (platform_data_size)
-		smdev->pdev.dev.platform_data = (void *)(smdev+1);
-
-	return &smdev->pdev;
-}
-
-/* sm501_register_device
- *
- * Register a platform device created with sm501_create_subdev()
-*/
-
-static int sm501_register_device(struct sm501_devdata *sm,
-				 struct platform_device *pdev)
-{
-	struct sm501_device *smdev = to_sm_device(pdev);
-	int ptr;
-	int ret;
-
-	for (ptr = 0; ptr < pdev->num_resources; ptr++) {
-		printk(KERN_DEBUG "%s[%d] %pR\n",
-		       pdev->name, ptr, &pdev->resource[ptr]);
-	}
-
-	ret = platform_device_register(pdev);
-
-	if (ret >= 0) {
-		dev_dbg(sm->dev, "registered %s\n", pdev->name);
-		list_add_tail(&smdev->list, &sm->devices);
-	} else
-		dev_err(sm->dev, "error registering %s (%d)\n",
-			pdev->name, ret);
-
-	return ret;
-}
-
-/* sm501_create_subio
- *
- * Fill in an IO resource for a sub device
-*/
-
-static void sm501_create_subio(struct sm501_devdata *sm,
-			       struct resource *res,
-			       resource_size_t offs,
-			       resource_size_t size)
-{
-	res->flags = IORESOURCE_MEM;
-	res->parent = sm->io_res;
-	res->start = sm->io_res->start + offs;
-	res->end = res->start + size - 1;
-}
-
-/* sm501_create_mem
- *
- * Fill in an MEM resource for a sub device
-*/
-
-static void sm501_create_mem(struct sm501_devdata *sm,
-			     struct resource *res,
-			     resource_size_t *offs,
-			     resource_size_t size)
-{
-	*offs -= size;		/* adjust memory size */
-
-	res->flags = IORESOURCE_MEM;
-	res->parent = sm->mem_res;
-	res->start = sm->mem_res->start + *offs;
-	res->end = res->start + size - 1;
-}
-
-/* sm501_create_irq
- *
- * Fill in an IRQ resource for a sub device
-*/
-
-static void sm501_create_irq(struct sm501_devdata *sm,
-			     struct resource *res)
-{
-	res->flags = IORESOURCE_IRQ;
-	res->parent = NULL;
-	res->start = res->end = sm->irq;
-}
-
-static int sm501_register_usbhost(struct sm501_devdata *sm,
-				  resource_size_t *mem_avail)
-{
-	struct platform_device *pdev;
-
-	pdev = sm501_create_subdev(sm, "sm501-usb", 3, 0);
-	if (!pdev)
-		return -ENOMEM;
-
-	sm501_create_subio(sm, &pdev->resource[0], 0x40000, 0x20000);
-	sm501_create_mem(sm, &pdev->resource[1], mem_avail, 256*1024);
-	sm501_create_irq(sm, &pdev->resource[2]);
-
-	return sm501_register_device(sm, pdev);
-}
-
-static void sm501_setup_uart_data(struct sm501_devdata *sm,
-				  struct plat_serial8250_port *uart_data,
-				  unsigned int offset)
-{
-	uart_data->membase = sm->regs + offset;
-	uart_data->mapbase = sm->io_res->start + offset;
-	uart_data->iotype = UPIO_MEM;
-	uart_data->irq = sm->irq;
-	uart_data->flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
-	uart_data->regshift = 2;
-	uart_data->uartclk = (9600 * 16);
-}
-
-static int sm501_register_uart(struct sm501_devdata *sm, int devices)
-{
-	struct platform_device *pdev;
-	struct plat_serial8250_port *uart_data;
-
-	pdev = sm501_create_subdev(sm, "serial8250", 0,
-				   sizeof(struct plat_serial8250_port) * 3);
-	if (!pdev)
-		return -ENOMEM;
-
-	uart_data = pdev->dev.platform_data;
-
-	if (devices & SM501_USE_UART0) {
-		sm501_setup_uart_data(sm, uart_data++, 0x30000);
-		sm501_unit_power(sm->dev, SM501_GATE_UART0, 1);
-		sm501_modify_reg(sm->dev, SM501_IRQ_MASK, 1 << 12, 0);
-		sm501_modify_reg(sm->dev, SM501_GPIO63_32_CONTROL, 0x01e0, 0);
-	}
-	if (devices & SM501_USE_UART1) {
-		sm501_setup_uart_data(sm, uart_data++, 0x30020);
-		sm501_unit_power(sm->dev, SM501_GATE_UART1, 1);
-		sm501_modify_reg(sm->dev, SM501_IRQ_MASK, 1 << 13, 0);
-		sm501_modify_reg(sm->dev, SM501_GPIO63_32_CONTROL, 0x1e00, 0);
-	}
-
-	pdev->id = PLAT8250_DEV_SM501;
-
-	return sm501_register_device(sm, pdev);
-}
-
-static int sm501_register_display(struct sm501_devdata *sm,
-				  resource_size_t *mem_avail)
-{
-	struct platform_device *pdev;
-
-	pdev = sm501_create_subdev(sm, "sm501-fb", 4, 0);
-	if (!pdev)
-		return -ENOMEM;
-
-	sm501_create_subio(sm, &pdev->resource[0], 0x80000, 0x10000);
-	sm501_create_subio(sm, &pdev->resource[1], 0x100000, 0x50000);
-	sm501_create_mem(sm, &pdev->resource[2], mem_avail, *mem_avail);
-	sm501_create_irq(sm, &pdev->resource[3]);
-
-	return sm501_register_device(sm, pdev);
-}
-
-#ifdef CONFIG_MFD_SM501_GPIO
-
-static inline struct sm501_gpio_chip *to_sm501_gpio(struct gpio_chip *gc)
-{
-	return container_of(gc, struct sm501_gpio_chip, gpio);
-}
-
-static inline struct sm501_devdata *sm501_gpio_to_dev(struct sm501_gpio *gpio)
-{
-	return container_of(gpio, struct sm501_devdata, gpio);
-}
-
-static int sm501_gpio_get(struct gpio_chip *chip, unsigned offset)
-
-{
-	struct sm501_gpio_chip *smgpio = to_sm501_gpio(chip);
-	unsigned long result;
-
-	result = smc501_readl(smgpio->regbase + SM501_GPIO_DATA_LOW);
-	result >>= offset;
-
-	return result & 1UL;
-}
-
-static void sm501_gpio_ensure_gpio(struct sm501_gpio_chip *smchip,
-				   unsigned long bit)
-{
-	unsigned long ctrl;
-
-	/* check and modify if this pin is not set as gpio. */
-
-	if (smc501_readl(smchip->control) & bit) {
-		dev_info(sm501_gpio_to_dev(smchip->ourgpio)->dev,
-			 "changing mode of gpio, bit %08lx\n", bit);
-
-		ctrl = smc501_readl(smchip->control);
-		ctrl &= ~bit;
-		smc501_writel(ctrl, smchip->control);
-
-		sm501_sync_regs(sm501_gpio_to_dev(smchip->ourgpio));
-	}
-}
-
-static void sm501_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
-
-{
-	struct sm501_gpio_chip *smchip = to_sm501_gpio(chip);
-	struct sm501_gpio *smgpio = smchip->ourgpio;
-	unsigned long bit = 1 << offset;
-	void __iomem *regs = smchip->regbase;
-	unsigned long save;
-	unsigned long val;
-
-	dev_dbg(sm501_gpio_to_dev(smgpio)->dev, "%s(%p,%d)\n",
-		__func__, chip, offset);
-
-	spin_lock_irqsave(&smgpio->lock, save);
-
-	val = smc501_readl(regs + SM501_GPIO_DATA_LOW) & ~bit;
-	if (value)
-		val |= bit;
-	smc501_writel(val, regs);
-
-	sm501_sync_regs(sm501_gpio_to_dev(smgpio));
-	sm501_gpio_ensure_gpio(smchip, bit);
-
-	spin_unlock_irqrestore(&smgpio->lock, save);
-}
-
-static int sm501_gpio_input(struct gpio_chip *chip, unsigned offset)
-{
-	struct sm501_gpio_chip *smchip = to_sm501_gpio(chip);
-	struct sm501_gpio *smgpio = smchip->ourgpio;
-	void __iomem *regs = smchip->regbase;
-	unsigned long bit = 1 << offset;
-	unsigned long save;
-	unsigned long ddr;
-
-	dev_dbg(sm501_gpio_to_dev(smgpio)->dev, "%s(%p,%d)\n",
-		__func__, chip, offset);
-
-	spin_lock_irqsave(&smgpio->lock, save);
-
-	ddr = smc501_readl(regs + SM501_GPIO_DDR_LOW);
-	smc501_writel(ddr & ~bit, regs + SM501_GPIO_DDR_LOW);
-
-	sm501_sync_regs(sm501_gpio_to_dev(smgpio));
-	sm501_gpio_ensure_gpio(smchip, bit);
-
-	spin_unlock_irqrestore(&smgpio->lock, save);
-
-	return 0;
-}
-
-static int sm501_gpio_output(struct gpio_chip *chip,
-			     unsigned offset, int value)
-{
-	struct sm501_gpio_chip *smchip = to_sm501_gpio(chip);
-	struct sm501_gpio *smgpio = smchip->ourgpio;
-	unsigned long bit = 1 << offset;
-	void __iomem *regs = smchip->regbase;
-	unsigned long save;
-	unsigned long val;
-	unsigned long ddr;
-
-	dev_dbg(sm501_gpio_to_dev(smgpio)->dev, "%s(%p,%d,%d)\n",
-		__func__, chip, offset, value);
-
-	spin_lock_irqsave(&smgpio->lock, save);
-
-	val = smc501_readl(regs + SM501_GPIO_DATA_LOW);
-	if (value)
-		val |= bit;
-	else
-		val &= ~bit;
-	smc501_writel(val, regs);
-
-	ddr = smc501_readl(regs + SM501_GPIO_DDR_LOW);
-	smc501_writel(ddr | bit, regs + SM501_GPIO_DDR_LOW);
-
-	sm501_sync_regs(sm501_gpio_to_dev(smgpio));
-	smc501_writel(val, regs + SM501_GPIO_DATA_LOW);
-
-	sm501_sync_regs(sm501_gpio_to_dev(smgpio));
-	spin_unlock_irqrestore(&smgpio->lock, save);
-
-	return 0;
-}
-
-static struct gpio_chip gpio_chip_template = {
-	.ngpio			= 32,
-	.direction_input	= sm501_gpio_input,
-	.direction_output	= sm501_gpio_output,
-	.set			= sm501_gpio_set,
-	.get			= sm501_gpio_get,
-};
-
-static int __devinit sm501_gpio_register_chip(struct sm501_devdata *sm,
-					      struct sm501_gpio *gpio,
-					      struct sm501_gpio_chip *chip)
-{
-	struct sm501_platdata *pdata = sm->platdata;
-	struct gpio_chip *gchip = &chip->gpio;
-	int base = pdata->gpio_base;
-
-	chip->gpio = gpio_chip_template;
-
-	if (chip == &gpio->high) {
-		if (base > 0)
-			base += 32;
-		chip->regbase = gpio->regs + SM501_GPIO_DATA_HIGH;
-		chip->control = sm->regs + SM501_GPIO63_32_CONTROL;
-		gchip->label  = "SM501-HIGH";
-	} else {
-		chip->regbase = gpio->regs + SM501_GPIO_DATA_LOW;
-		chip->control = sm->regs + SM501_GPIO31_0_CONTROL;
-		gchip->label  = "SM501-LOW";
-	}
-
-	gchip->base   = base;
-	chip->ourgpio = gpio;
-
-	return gpiochip_add(gchip);
-}
-
-static int __devinit sm501_register_gpio(struct sm501_devdata *sm)
-{
-	struct sm501_gpio *gpio = &sm->gpio;
-	resource_size_t iobase = sm->io_res->start + SM501_GPIO;
-	int ret;
-	int tmp;
-
-	dev_dbg(sm->dev, "registering gpio block %08llx\n",
-		(unsigned long long)iobase);
-
-	spin_lock_init(&gpio->lock);
-
-	gpio->regs_res = request_mem_region(iobase, 0x20, "sm501-gpio");
-	if (gpio->regs_res == NULL) {
-		dev_err(sm->dev, "gpio: failed to request region\n");
-		return -ENXIO;
-	}
-
-	gpio->regs = ioremap(iobase, 0x20);
-	if (gpio->regs == NULL) {
-		dev_err(sm->dev, "gpio: failed to remap registers\n");
-		ret = -ENXIO;
-		goto err_claimed;
-	}
-
-	/* Register both our chips. */
-
-	ret = sm501_gpio_register_chip(sm, gpio, &gpio->low);
-	if (ret) {
-		dev_err(sm->dev, "failed to add low chip\n");
-		goto err_mapped;
-	}
-
-	ret = sm501_gpio_register_chip(sm, gpio, &gpio->high);
-	if (ret) {
-		dev_err(sm->dev, "failed to add high chip\n");
-		goto err_low_chip;
-	}
-
-	gpio->registered = 1;
-
-	return 0;
-
- err_low_chip:
-	tmp = gpiochip_remove(&gpio->low.gpio);
-	if (tmp) {
-		dev_err(sm->dev, "cannot remove low chip, cannot tidy up\n");
-		return ret;
-	}
-
- err_mapped:
-	iounmap(gpio->regs);
-
- err_claimed:
-	release_resource(gpio->regs_res);
-	kfree(gpio->regs_res);
-
-	return ret;
-}
-
-static void sm501_gpio_remove(struct sm501_devdata *sm)
-{
-	struct sm501_gpio *gpio = &sm->gpio;
-	int ret;
-
-	if (!sm->gpio.registered)
-		return;
-
-	ret = gpiochip_remove(&gpio->low.gpio);
-	if (ret)
-		dev_err(sm->dev, "cannot remove low chip, cannot tidy up\n");
-
-	ret = gpiochip_remove(&gpio->high.gpio);
-	if (ret)
-		dev_err(sm->dev, "cannot remove high chip, cannot tidy up\n");
-
-	iounmap(gpio->regs);
-	release_resource(gpio->regs_res);
-	kfree(gpio->regs_res);
-}
-
-static inline int sm501_gpio_pin2nr(struct sm501_devdata *sm, unsigned int pin)
-{
-	struct sm501_gpio *gpio = &sm->gpio;
-	int base = (pin < 32) ? gpio->low.gpio.base : gpio->high.gpio.base;
-
-	return (pin % 32) + base;
-}
-
-static inline int sm501_gpio_isregistered(struct sm501_devdata *sm)
-{
-	return sm->gpio.registered;
-}
-#else
-static inline int sm501_register_gpio(struct sm501_devdata *sm)
-{
-	return 0;
-}
-
-static inline void sm501_gpio_remove(struct sm501_devdata *sm)
-{
-}
-
-static inline int sm501_gpio_pin2nr(struct sm501_devdata *sm, unsigned int pin)
-{
-	return -1;
-}
-
-static inline int sm501_gpio_isregistered(struct sm501_devdata *sm)
-{
-	return 0;
-}
-#endif
-
-static int sm501_register_gpio_i2c_instance(struct sm501_devdata *sm,
-					    struct sm501_platdata_gpio_i2c *iic)
-{
-	struct i2c_gpio_platform_data *icd;
-	struct platform_device *pdev;
-
-	pdev = sm501_create_subdev(sm, "i2c-gpio", 0,
-				   sizeof(struct i2c_gpio_platform_data));
-	if (!pdev)
-		return -ENOMEM;
-
-	icd = pdev->dev.platform_data;
-
-	/* We keep the pin_sda and pin_scl fields relative in case the
-	 * same platform data is passed to >1 SM501.
-	 */
-
-	icd->sda_pin = sm501_gpio_pin2nr(sm, iic->pin_sda);
-	icd->scl_pin = sm501_gpio_pin2nr(sm, iic->pin_scl);
-	icd->timeout = iic->timeout;
-	icd->udelay = iic->udelay;
-
-	/* note, we can't use either of the pin numbers, as the i2c-gpio
-	 * driver uses the platform.id field to generate the bus number
-	 * to register with the i2c core; The i2c core doesn't have enough
-	 * entries to deal with anything we currently use.
-	*/
-
-	pdev->id = iic->bus_num;
-
-	dev_info(sm->dev, "registering i2c-%d: sda=%d (%d), scl=%d (%d)\n",
-		 iic->bus_num,
-		 icd->sda_pin, iic->pin_sda, icd->scl_pin, iic->pin_scl);
-
-	return sm501_register_device(sm, pdev);
-}
-
-static int sm501_register_gpio_i2c(struct sm501_devdata *sm,
-				   struct sm501_platdata *pdata)
-{
-	struct sm501_platdata_gpio_i2c *iic = pdata->gpio_i2c;
-	int index;
-	int ret;
-
-	for (index = 0; index < pdata->gpio_i2c_nr; index++, iic++) {
-		ret = sm501_register_gpio_i2c_instance(sm, iic);
-		if (ret < 0)
-			return ret;
-	}
-
-	return 0;
-}
-
-/* sm501_dbg_regs
- *
- * Debug attribute to attach to parent device to show core registers
-*/
-
-static ssize_t sm501_dbg_regs(struct device *dev,
-			      struct device_attribute *attr, char *buff)
-{
-	struct sm501_devdata *sm = dev_get_drvdata(dev)	;
-	unsigned int reg;
-	char *ptr = buff;
-	int ret;
-
-	for (reg = 0x00; reg < 0x70; reg += 4) {
-		ret = sprintf(ptr, "%08x = %08x\n",
-			      reg, smc501_readl(sm->regs + reg));
-		ptr += ret;
-	}
-
-	return ptr - buff;
-}
-
-
-static DEVICE_ATTR(dbg_regs, 0666, sm501_dbg_regs, NULL);
-
-/* sm501_init_reg
- *
- * Helper function for the init code to setup a register
- *
- * clear the bits which are set in r->mask, and then set
- * the bits set in r->set.
-*/
-
-static inline void sm501_init_reg(struct sm501_devdata *sm,
-				  unsigned long reg,
-				  struct sm501_reg_init *r)
-{
-	unsigned long tmp;
-
-	tmp = smc501_readl(sm->regs + reg);
-	tmp &= ~r->mask;
-	tmp |= r->set;
-	smc501_writel(tmp, sm->regs + reg);
-}
-
-/* sm501_init_regs
- *
- * Setup core register values
-*/
-
-static void sm501_init_regs(struct sm501_devdata *sm,
-			    struct sm501_initdata *init)
-{
-	sm501_misc_control(sm->dev,
-			   init->misc_control.set,
-			   init->misc_control.mask);
-
-	sm501_init_reg(sm, SM501_MISC_TIMING, &init->misc_timing);
-	sm501_init_reg(sm, SM501_GPIO31_0_CONTROL, &init->gpio_low);
-	sm501_init_reg(sm, SM501_GPIO63_32_CONTROL, &init->gpio_high);
-
-	if (init->m1xclk) {
-		dev_info(sm->dev, "setting M1XCLK to %ld\n", init->m1xclk);
-		sm501_set_clock(sm->dev, SM501_CLOCK_M1XCLK, init->m1xclk);
-	}
-
-	if (init->mclk) {
-		dev_info(sm->dev, "setting MCLK to %ld\n", init->mclk);
-		sm501_set_clock(sm->dev, SM501_CLOCK_MCLK, init->mclk);
-	}
-
-}
-
-/* Check the PLL sources for the M1CLK and M1XCLK
- *
- * If the M1CLK and M1XCLKs are not sourced from the same PLL, then
- * there is a risk (see errata AB-5) that the SM501 will cease proper
- * function. If this happens, then it is likely the SM501 will
- * hang the system.
-*/
-
-static int sm501_check_clocks(struct sm501_devdata *sm)
-{
-	unsigned long pwrmode = smc501_readl(sm->regs + SM501_CURRENT_CLOCK);
-	unsigned long msrc = (pwrmode & SM501_POWERMODE_M_SRC);
-	unsigned long m1src = (pwrmode & SM501_POWERMODE_M1_SRC);
-
-	return ((msrc == 0 && m1src != 0) || (msrc != 0 && m1src == 0));
-}
-
-static unsigned int sm501_mem_local[] = {
-	[0]	= 4*1024*1024,
-	[1]	= 8*1024*1024,
-	[2]	= 16*1024*1024,
-	[3]	= 32*1024*1024,
-	[4]	= 64*1024*1024,
-	[5]	= 2*1024*1024,
-};
-
-/* sm501_init_dev
- *
- * Common init code for an SM501
-*/
-
-static int __devinit sm501_init_dev(struct sm501_devdata *sm)
-{
-	struct sm501_initdata *idata;
-	struct sm501_platdata *pdata;
-	resource_size_t mem_avail;
-	unsigned long dramctrl;
-	unsigned long devid;
-	int ret;
-
-	mutex_init(&sm->clock_lock);
-	spin_lock_init(&sm->reg_lock);
-
-	INIT_LIST_HEAD(&sm->devices);
-
-	devid = smc501_readl(sm->regs + SM501_DEVICEID);
-
-	if ((devid & SM501_DEVICEID_IDMASK) != SM501_DEVICEID_SM501) {
-		dev_err(sm->dev, "incorrect device id %08lx\n", devid);
-		return -EINVAL;
-	}
-
-	/* disable irqs */
-	smc501_writel(0, sm->regs + SM501_IRQ_MASK);
-
-	dramctrl = smc501_readl(sm->regs + SM501_DRAM_CONTROL);
-	mem_avail = sm501_mem_local[(dramctrl >> 13) & 0x7];
-
-	dev_info(sm->dev, "SM501 At %p: Version %08lx, %ld Mb, IRQ %d\n",
-		 sm->regs, devid, (unsigned long)mem_avail >> 20, sm->irq);
-
-	sm->rev = devid & SM501_DEVICEID_REVMASK;
-
-	sm501_dump_gate(sm);
-
-	ret = device_create_file(sm->dev, &dev_attr_dbg_regs);
-	if (ret)
-		dev_err(sm->dev, "failed to create debug regs file\n");
-
-	sm501_dump_clk(sm);
-
-	/* check to see if we have some device initialisation */
-
-	pdata = sm->platdata;
-	idata = pdata ? pdata->init : NULL;
-
-	if (idata) {
-		sm501_init_regs(sm, idata);
-
-		if (idata->devices & SM501_USE_USB_HOST)
-			sm501_register_usbhost(sm, &mem_avail);
-		if (idata->devices & (SM501_USE_UART0 | SM501_USE_UART1))
-			sm501_register_uart(sm, idata->devices);
-		if (idata->devices & SM501_USE_GPIO)
-			sm501_register_gpio(sm);
-	}
-
-	if (pdata && pdata->gpio_i2c != NULL && pdata->gpio_i2c_nr > 0) {
-		if (!sm501_gpio_isregistered(sm))
-			dev_err(sm->dev, "no gpio available for i2c gpio.\n");
-		else
-			sm501_register_gpio_i2c(sm, pdata);
-	}
-
-	ret = sm501_check_clocks(sm);
-	if (ret) {
-		dev_err(sm->dev, "M1X and M clocks sourced from different "
-					"PLLs\n");
-		return -EINVAL;
-	}
-
-	/* always create a framebuffer */
-	sm501_register_display(sm, &mem_avail);
-
-	return 0;
-}
-
-static int __devinit sm501_plat_probe(struct platform_device *dev)
-{
-	struct sm501_devdata *sm;
-	int ret;
-
-	sm = kzalloc(sizeof(struct sm501_devdata), GFP_KERNEL);
-	if (sm == NULL) {
-		dev_err(&dev->dev, "no memory for device data\n");
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	sm->dev = &dev->dev;
-	sm->pdev_id = dev->id;
-	sm->platdata = dev->dev.platform_data;
-
-	ret = platform_get_irq(dev, 0);
-	if (ret < 0) {
-		dev_err(&dev->dev, "failed to get irq resource\n");
-		goto err_res;
-	}
-	sm->irq = ret;
-
-	sm->io_res = platform_get_resource(dev, IORESOURCE_MEM, 1);
-	sm->mem_res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-
-	if (sm->io_res == NULL || sm->mem_res == NULL) {
-		dev_err(&dev->dev, "failed to get IO resource\n");
-		ret = -ENOENT;
-		goto err_res;
-	}
-
-	sm->regs_claim = request_mem_region(sm->io_res->start,
-					    0x100, "sm501");
-
-	if (sm->regs_claim == NULL) {
-		dev_err(&dev->dev, "cannot claim registers\n");
-		ret = -EBUSY;
-		goto err_res;
-	}
-
-	platform_set_drvdata(dev, sm);
-
-	sm->regs = ioremap(sm->io_res->start, resource_size(sm->io_res));
-
-	if (sm->regs == NULL) {
-		dev_err(&dev->dev, "cannot remap registers\n");
-		ret = -EIO;
-		goto err_claim;
-	}
-
-	return sm501_init_dev(sm);
-
- err_claim:
-	release_resource(sm->regs_claim);
-	kfree(sm->regs_claim);
- err_res:
-	kfree(sm);
- err1:
-	return ret;
-
-}
-
-#ifdef CONFIG_PM
-
-/* power management support */
-
-static void sm501_set_power(struct sm501_devdata *sm, int on)
-{
-	struct sm501_platdata *pd = sm->platdata;
-
-	if (pd == NULL)
-		return;
-
-	if (pd->get_power) {
-		if (pd->get_power(sm->dev) == on) {
-			dev_dbg(sm->dev, "is already %d\n", on);
-			return;
-		}
-	}
-
-	if (pd->set_power) {
-		dev_dbg(sm->dev, "setting power to %d\n", on);
-
-		pd->set_power(sm->dev, on);
-		sm501_mdelay(sm, 10);
-	}
-}
-
-static int sm501_plat_suspend(struct platform_device *pdev, pm_message_t state)
-{
-	struct sm501_devdata *sm = platform_get_drvdata(pdev);
-
-	sm->in_suspend = 1;
-	sm->pm_misc = smc501_readl(sm->regs + SM501_MISC_CONTROL);
-
-	sm501_dump_regs(sm);
-
-	if (sm->platdata) {
-		if (sm->platdata->flags & SM501_FLAG_SUSPEND_OFF)
-			sm501_set_power(sm, 0);
-	}
-
-	return 0;
-}
-
-static int sm501_plat_resume(struct platform_device *pdev)
-{
-	struct sm501_devdata *sm = platform_get_drvdata(pdev);
-
-	sm501_set_power(sm, 1);
-
-	sm501_dump_regs(sm);
-	sm501_dump_gate(sm);
-	sm501_dump_clk(sm);
-
-	/* check to see if we are in the same state as when suspended */
-
-	if (smc501_readl(sm->regs + SM501_MISC_CONTROL) != sm->pm_misc) {
-		dev_info(sm->dev, "SM501_MISC_CONTROL changed over sleep\n");
-		smc501_writel(sm->pm_misc, sm->regs + SM501_MISC_CONTROL);
-
-		/* our suspend causes the controller state to change,
-		 * either by something attempting setup, power loss,
-		 * or an external reset event on power change */
-
-		if (sm->platdata && sm->platdata->init) {
-			sm501_init_regs(sm, sm->platdata->init);
-		}
-	}
-
-	/* dump our state from resume */
-
-	sm501_dump_regs(sm);
-	sm501_dump_clk(sm);
-
-	sm->in_suspend = 0;
-
-	return 0;
-}
-#else
-#define sm501_plat_suspend NULL
-#define sm501_plat_resume NULL
-#endif
-
-/* Initialisation data for PCI devices */
-
-static struct sm501_initdata sm501_pci_initdata = {
-	.gpio_high	= {
-		.set	= 0x3F000000,		/* 24bit panel */
-		.mask	= 0x0,
-	},
-	.misc_timing	= {
-		.set	= 0x010100,		/* SDRAM timing */
-		.mask	= 0x1F1F00,
-	},
-	.misc_control	= {
-		.set	= SM501_MISC_PNL_24BIT,
-		.mask	= 0,
-	},
-
-	.devices	= SM501_USE_ALL,
-
-	/* Errata AB-3 says that 72MHz is the fastest available
-	 * for 33MHZ PCI with proper bus-mastering operation */
-
-	.mclk		= 72 * MHZ,
-	.m1xclk		= 144 * MHZ,
-};
-
-static struct sm501_platdata_fbsub sm501_pdata_fbsub = {
-	.flags		= (SM501FB_FLAG_USE_INIT_MODE |
-			   SM501FB_FLAG_USE_HWCURSOR |
-			   SM501FB_FLAG_USE_HWACCEL |
-			   SM501FB_FLAG_DISABLE_AT_EXIT),
-};
-
-static struct sm501_platdata_fb sm501_fb_pdata = {
-	.fb_route	= SM501_FB_OWN,
-	.fb_crt		= &sm501_pdata_fbsub,
-	.fb_pnl		= &sm501_pdata_fbsub,
-};
-
-static struct sm501_platdata sm501_pci_platdata = {
-	.init		= &sm501_pci_initdata,
-	.fb		= &sm501_fb_pdata,
-	.gpio_base	= -1,
-};
-
-static int __devinit sm501_pci_probe(struct pci_dev *dev,
-				     const struct pci_device_id *id)
-{
-	struct sm501_devdata *sm;
-	int err;
-
-	sm = kzalloc(sizeof(struct sm501_devdata), GFP_KERNEL);
-	if (sm == NULL) {
-		dev_err(&dev->dev, "no memory for device data\n");
-		err = -ENOMEM;
-		goto err1;
-	}
-
-	/* set a default set of platform data */
-	dev->dev.platform_data = sm->platdata = &sm501_pci_platdata;
-
-	/* set a hopefully unique id for our child platform devices */
-	sm->pdev_id = 32 + dev->devfn;
-
-	pci_set_drvdata(dev, sm);
-
-	err = pci_enable_device(dev);
-	if (err) {
-		dev_err(&dev->dev, "cannot enable device\n");
-		goto err2;
-	}
-
-	sm->dev = &dev->dev;
-	sm->irq = dev->irq;
-
-#ifdef __BIG_ENDIAN
-	/* if the system is big-endian, we most probably have a
-	 * translation in the IO layer making the PCI bus little endian
-	 * so make the framebuffer swapped pixels */
-
-	sm501_fb_pdata.flags |= SM501_FBPD_SWAP_FB_ENDIAN;
-#endif
-
-	/* check our resources */
-
-	if (!(pci_resource_flags(dev, 0) & IORESOURCE_MEM)) {
-		dev_err(&dev->dev, "region #0 is not memory?\n");
-		err = -EINVAL;
-		goto err3;
-	}
-
-	if (!(pci_resource_flags(dev, 1) & IORESOURCE_MEM)) {
-		dev_err(&dev->dev, "region #1 is not memory?\n");
-		err = -EINVAL;
-		goto err3;
-	}
-
-	/* make our resources ready for sharing */
-
-	sm->io_res = &dev->resource[1];
-	sm->mem_res = &dev->resource[0];
-
-	sm->regs_claim = request_mem_region(sm->io_res->start,
-					    0x100, "sm501");
-	if (sm->regs_claim == NULL) {
-		dev_err(&dev->dev, "cannot claim registers\n");
-		err= -EBUSY;
-		goto err3;
-	}
-
-	sm->regs = pci_ioremap_bar(dev, 1);
-
-	if (sm->regs == NULL) {
-		dev_err(&dev->dev, "cannot remap registers\n");
-		err = -EIO;
-		goto err4;
-	}
-
-	sm501_init_dev(sm);
-	return 0;
-
- err4:
-	release_resource(sm->regs_claim);
-	kfree(sm->regs_claim);
- err3:
-	pci_disable_device(dev);
- err2:
-	pci_set_drvdata(dev, NULL);
-	kfree(sm);
- err1:
-	return err;
-}
-
-static void sm501_remove_sub(struct sm501_devdata *sm,
-			     struct sm501_device *smdev)
-{
-	list_del(&smdev->list);
-	platform_device_unregister(&smdev->pdev);
-}
-
-static void sm501_dev_remove(struct sm501_devdata *sm)
-{
-	struct sm501_device *smdev, *tmp;
-
-	list_for_each_entry_safe(smdev, tmp, &sm->devices, list)
-		sm501_remove_sub(sm, smdev);
-
-	device_remove_file(sm->dev, &dev_attr_dbg_regs);
-
-	sm501_gpio_remove(sm);
-}
-
-static void __devexit sm501_pci_remove(struct pci_dev *dev)
-{
-	struct sm501_devdata *sm = pci_get_drvdata(dev);
-
-	sm501_dev_remove(sm);
-	iounmap(sm->regs);
-
-	release_resource(sm->regs_claim);
-	kfree(sm->regs_claim);
-
-	pci_set_drvdata(dev, NULL);
-	pci_disable_device(dev);
-}
-
-static int sm501_plat_remove(struct platform_device *dev)
-{
-	struct sm501_devdata *sm = platform_get_drvdata(dev);
-
-	sm501_dev_remove(sm);
-	iounmap(sm->regs);
-
-	release_resource(sm->regs_claim);
-	kfree(sm->regs_claim);
-
-	return 0;
-}
-
-static DEFINE_PCI_DEVICE_TABLE(sm501_pci_tbl) = {
-	{ 0x126f, 0x0501, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-	{ 0, },
-};
-
-MODULE_DEVICE_TABLE(pci, sm501_pci_tbl);
-
-static struct pci_driver sm501_pci_driver = {
-	.name		= "sm501",
-	.id_table	= sm501_pci_tbl,
-	.probe		= sm501_pci_probe,
-	.remove		= __devexit_p(sm501_pci_remove),
-};
-
-MODULE_ALIAS("platform:sm501");
-
-static struct of_device_id __devinitdata of_sm501_match_tbl[] = {
-	{ .compatible = "smi,sm501", },
-	{ /* end */ }
-};
-
-static struct platform_driver sm501_plat_driver = {
-	.driver		= {
-		.name	= "sm501",
-		.owner	= THIS_MODULE,
-		.of_match_table = of_sm501_match_tbl,
-	},
-	.probe		= sm501_plat_probe,
-	.remove		= sm501_plat_remove,
-	.suspend	= sm501_plat_suspend,
-	.resume		= sm501_plat_resume,
-};
-
-static int __init sm501_base_init(void)
-{
-	platform_driver_register(&sm501_plat_driver);
-	return pci_register_driver(&sm501_pci_driver);
-}
-
-static void __exit sm501_base_exit(void)
-{
-	platform_driver_unregister(&sm501_plat_driver);
-	pci_unregister_driver(&sm501_pci_driver);
-}
-
-module_init(sm501_base_init);
-module_exit(sm501_base_exit);
-
-MODULE_DESCRIPTION("SM501 Core Driver");
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>, Vincent Sanders");
-MODULE_LICENSE("GPL v2");