arch/arm/mach-integrator/impd1.c - kernel/msm - Gitiles

 /*
  *  linux/arch/arm/mach-integrator/impd1.c
  *
  *  Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
  *
  * 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.
  *
  *  This file provides the core support for the IM-PD1 module.
  *
  * Module / boot parameters.
  *   lmid=n   impd1.lmid=n - set the logic module position in stack to 'n'
  */
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/clcd.h>
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/clkdev.h>

 #include <asm/hardware/icst.h>
 #include <mach/lm.h>
 #include <mach/impd1.h>
 #include <asm/sizes.h>

 static int module_id;

 module_param_named(lmid, module_id, int, 0444);
 MODULE_PARM_DESC(lmid, "logic module stack position");

 struct impd1_module {
 	void __iomem	*base;
 	struct clk	vcos[2];
 	struct clk_lookup *clks[3];
 };

 static const struct icst_params impd1_vco_params = {
 	.ref		= 24000000,	/* 24 MHz */
 	.vco_max	= ICST525_VCO_MAX_3V,
 	.vco_min	= ICST525_VCO_MIN,
 	.vd_min		= 12,
 	.vd_max		= 519,
 	.rd_min		= 3,
 	.rd_max		= 120,
 	.s2div		= icst525_s2div,
 	.idx2s		= icst525_idx2s,
 };

 static void impd1_setvco(struct clk *clk, struct icst_vco vco)
 {
 	struct impd1_module *impd1 = clk->data;
 	u32 val = vco.v | (vco.r << 9) | (vco.s << 16);

 	writel(0xa05f, impd1->base + IMPD1_LOCK);
 	writel(val, clk->vcoreg);
 	writel(0, impd1->base + IMPD1_LOCK);

 #ifdef DEBUG
 	vco.v = val & 0x1ff;
 	vco.r = (val >> 9) & 0x7f;
 	vco.s = (val >> 16) & 7;

 	pr_debug("IM-PD1: VCO%d clock is %ld Hz\n",
 		 vconr, icst525_hz(&impd1_vco_params, vco));
 #endif
 }

 static const struct clk_ops impd1_clk_ops = {
 	.round	= icst_clk_round,
 	.set	= icst_clk_set,
 	.setvco	= impd1_setvco,
 };

 void impd1_tweak_control(struct device *dev, u32 mask, u32 val)
 {
 	struct impd1_module *impd1 = dev_get_drvdata(dev);
 	u32 cur;

 	val &= mask;
 	cur = readl(impd1->base + IMPD1_CTRL) & ~mask;
 	writel(cur | val, impd1->base + IMPD1_CTRL);
 }

 EXPORT_SYMBOL(impd1_tweak_control);

 /*
  * CLCD support
  */
 #define PANEL		PROSPECTOR

 #define LTM10C209		1
 #define PROSPECTOR		2
 #define SVGA			3
 #define VGA			4

 #if PANEL == VGA
 #define PANELTYPE	vga
 static struct clcd_panel vga = {
 	.mode		= {
 		.name		= "VGA",
 		.refresh	= 60,
 		.xres		= 640,
 		.yres		= 480,
 		.pixclock	= 39721,
 		.left_margin	= 40,
 		.right_margin	= 24,
 		.upper_margin	= 32,
 		.lower_margin	= 11,
 		.hsync_len	= 96,
 		.vsync_len	= 2,
 		.sync		= 0,
 		.vmode		= FB_VMODE_NONINTERLACED,
 	},
 	.width		= -1,
 	.height		= -1,
 	.tim2		= TIM2_BCD | TIM2_IPC,
 	.cntl		= CNTL_LCDTFT | CNTL_LCDVCOMP(1),
 	.caps		= CLCD_CAP_5551,
 	.connector	= IMPD1_CTRL_DISP_VGA,
 	.bpp		= 16,
 	.grayscale	= 0,
 };

 #elif PANEL == SVGA
 #define PANELTYPE	svga
 static struct clcd_panel svga = {
 	.mode		= {
 		.name		= "SVGA",
 		.refresh	= 0,
 		.xres		= 800,
 		.yres		= 600,
 		.pixclock	= 27778,
 		.left_margin	= 20,
 		.right_margin	= 20,
 		.upper_margin	= 5,
 		.lower_margin	= 5,
 		.hsync_len	= 164,
 		.vsync_len	= 62,
 		.sync		= 0,
 		.vmode		= FB_VMODE_NONINTERLACED,
 	},
 	.width		= -1,
 	.height		= -1,
 	.tim2		= TIM2_BCD,
 	.cntl		= CNTL_LCDTFT | CNTL_LCDVCOMP(1),
 	.connector	= IMPD1_CTRL_DISP_VGA,
 	.caps		= CLCD_CAP_5551,
 	.bpp		= 16,
 	.grayscale	= 0,
 };

 #elif PANEL == PROSPECTOR
 #define PANELTYPE	prospector
 static struct clcd_panel prospector = {
 	.mode		= {
 		.name		= "PROSPECTOR",
 		.refresh	= 0,
 		.xres		= 640,
 		.yres		= 480,
 		.pixclock	= 40000,
 		.left_margin	= 33,
 		.right_margin	= 64,
 		.upper_margin	= 36,
 		.lower_margin	= 7,
 		.hsync_len	= 64,
 		.vsync_len	= 25,
 		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 		.vmode		= FB_VMODE_NONINTERLACED,
 	},
 	.width		= -1,
 	.height		= -1,
 	.tim2		= TIM2_BCD,
 	.cntl		= CNTL_LCDTFT | CNTL_LCDVCOMP(1),
 	.caps		= CLCD_CAP_5551,
 	.fixedtimings	= 1,
 	.connector	= IMPD1_CTRL_DISP_LCD,
 	.bpp		= 16,
 	.grayscale	= 0,
 };

 #elif PANEL == LTM10C209
 #define PANELTYPE	ltm10c209
 /*
  * Untested.
  */
 static struct clcd_panel ltm10c209 = {
 	.mode		= {
 		.name		= "LTM10C209",
 		.refresh	= 0,
 		.xres		= 640,
 		.yres		= 480,
 		.pixclock	= 40000,
 		.left_margin	= 20,
 		.right_margin	= 20,
 		.upper_margin	= 19,
 		.lower_margin	= 19,
 		.hsync_len	= 20,
 		.vsync_len	= 10,
 		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 		.vmode		= FB_VMODE_NONINTERLACED,
 	},
 	.width		= -1,
 	.height		= -1,
 	.tim2		= TIM2_BCD,
 	.cntl		= CNTL_LCDTFT | CNTL_LCDVCOMP(1),
 	.caps		= CLCD_CAP_5551,
 	.fixedtimings	= 1,
 	.connector	= IMPD1_CTRL_DISP_LCD,
 	.bpp		= 16,
 	.grayscale	= 0,
 };
 #endif

 /*
  * Disable all display connectors on the interface module.
  */
 static void impd1fb_clcd_disable(struct clcd_fb *fb)
 {
 	impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK, 0);
 }

 /*
  * Enable the relevant connector on the interface module.
  */
 static void impd1fb_clcd_enable(struct clcd_fb *fb)
 {
 	impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK,
 			fb->panel->connector | IMPD1_CTRL_DISP_ENABLE);
 }

 static int impd1fb_clcd_setup(struct clcd_fb *fb)
 {
 	unsigned long framebase = fb->dev->res.start + 0x01000000;
 	unsigned long framesize = SZ_1M;
 	int ret = 0;

 	fb->panel = &PANELTYPE;

 	if (!request_mem_region(framebase, framesize, "clcd framebuffer")) {
 		printk(KERN_ERR "IM-PD1: unable to reserve framebuffer\n");
 		return -EBUSY;
 	}

 	fb->fb.screen_base = ioremap(framebase, framesize);
 	if (!fb->fb.screen_base) {
 		printk(KERN_ERR "IM-PD1: unable to map framebuffer\n");
 		ret = -ENOMEM;
 		goto free_buffer;
 	}

 	fb->fb.fix.smem_start	= framebase;
 	fb->fb.fix.smem_len	= framesize;

 	return 0;

  free_buffer:
 	release_mem_region(framebase, framesize);
 	return ret;
 }

 static int impd1fb_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
 {
 	unsigned long start, size;

 	start = vma->vm_pgoff + (fb->fb.fix.smem_start >> PAGE_SHIFT);
 	size = vma->vm_end - vma->vm_start;

 	return remap_pfn_range(vma, vma->vm_start, start, size,
 			       vma->vm_page_prot);
 }

 static void impd1fb_clcd_remove(struct clcd_fb *fb)
 {
 	iounmap(fb->fb.screen_base);
 	release_mem_region(fb->fb.fix.smem_start, fb->fb.fix.smem_len);
 }

 static struct clcd_board impd1_clcd_data = {
 	.name		= "IM-PD/1",
 	.caps		= CLCD_CAP_5551 | CLCD_CAP_888,
 	.check		= clcdfb_check,
 	.decode		= clcdfb_decode,
 	.disable	= impd1fb_clcd_disable,
 	.enable		= impd1fb_clcd_enable,
 	.setup		= impd1fb_clcd_setup,
 	.mmap		= impd1fb_clcd_mmap,
 	.remove		= impd1fb_clcd_remove,
 };

 struct impd1_device {
 	unsigned long	offset;
 	unsigned int	irq[2];
 	unsigned int	id;
 	void		*platform_data;
 };

 static struct impd1_device impd1_devs[] = {
 	{
 		.offset	= 0x03000000,
 		.id	= 0x00041190,
 	}, {
 		.offset	= 0x00100000,
 		.irq	= { 1 },
 		.id	= 0x00141011,
 	}, {
 		.offset	= 0x00200000,
 		.irq	= { 2 },
 		.id	= 0x00141011,
 	}, {
 		.offset	= 0x00300000,
 		.irq	= { 3 },
 		.id	= 0x00041022,
 	}, {
 		.offset	= 0x00400000,
 		.irq	= { 4 },
 		.id	= 0x00041061,
 	}, {
 		.offset	= 0x00500000,
 		.irq	= { 5 },
 		.id	= 0x00041061,
 	}, {
 		.offset	= 0x00600000,
 		.irq	= { 6 },
 		.id	= 0x00041130,
 	}, {
 		.offset	= 0x00700000,
 		.irq	= { 7, 8 },
 		.id	= 0x00041181,
 	}, {
 		.offset	= 0x00800000,
 		.irq	= { 9 },
 		.id	= 0x00041041,
 	}, {
 		.offset	= 0x01000000,
 		.irq	= { 11 },
 		.id	= 0x00041110,
 		.platform_data = &impd1_clcd_data,
 	}
 };

 static struct clk fixed_14745600 = {
 	.rate = 14745600,
 };

 static int impd1_probe(struct lm_device *dev)
 {
 	struct impd1_module *impd1;
 	int i, ret;

 	if (dev->id != module_id)
 		return -EINVAL;

 	if (!request_mem_region(dev->resource.start, SZ_4K, "LM registers"))
 		return -EBUSY;

 	impd1 = kzalloc(sizeof(struct impd1_module), GFP_KERNEL);
 	if (!impd1) {
 		ret = -ENOMEM;
 		goto release_lm;
 	}

 	impd1->base = ioremap(dev->resource.start, SZ_4K);
 	if (!impd1->base) {
 		ret = -ENOMEM;
 		goto free_impd1;
 	}

 	lm_set_drvdata(dev, impd1);

 	printk("IM-PD1 found at 0x%08lx\n",
 		(unsigned long)dev->resource.start);

 	for (i = 0; i < ARRAY_SIZE(impd1->vcos); i++) {
 		impd1->vcos[i].ops = &impd1_clk_ops,
 		impd1->vcos[i].owner = THIS_MODULE,
 		impd1->vcos[i].params = &impd1_vco_params,
 		impd1->vcos[i].data = impd1;
 	}
 	impd1->vcos[0].vcoreg = impd1->base + IMPD1_OSC1;
 	impd1->vcos[1].vcoreg = impd1->base + IMPD1_OSC2;

 	impd1->clks[0] = clkdev_alloc(&impd1->vcos[0], NULL, "lm%x:01000",
 					dev->id);
 	impd1->clks[1] = clkdev_alloc(&fixed_14745600, NULL, "lm%x:00100",
 					dev->id);
 	impd1->clks[2] = clkdev_alloc(&fixed_14745600, NULL, "lm%x:00200",
 					dev->id);
 	for (i = 0; i < ARRAY_SIZE(impd1->clks); i++)
 		clkdev_add(impd1->clks[i]);

 	for (i = 0; i < ARRAY_SIZE(impd1_devs); i++) {
 		struct impd1_device *idev = impd1_devs + i;
 		struct amba_device *d;
 		unsigned long pc_base;

 		pc_base = dev->resource.start + idev->offset;

 		d = amba_device_alloc(NULL, pc_base, SZ_4K);
 		if (!d)
 			continue;

 		dev_set_name(&d->dev, "lm%x:%5.5lx", dev->id, idev->offset >> 12);
 		d->dev.parent	= &dev->dev;
 		d->irq[0]	= dev->irq;
 		d->irq[1]	= dev->irq;
 		d->periphid	= idev->id;
 		d->dev.platform_data = idev->platform_data;

 		ret = amba_device_add(d, &dev->resource);
 		if (ret) {
 			dev_err(&d->dev, "unable to register device: %d\n", ret);
 			amba_device_put(d);
 		}
 	}

 	return 0;

  free_impd1:
 	if (impd1 && impd1->base)
 		iounmap(impd1->base);
 	kfree(impd1);
  release_lm:
 	release_mem_region(dev->resource.start, SZ_4K);
 	return ret;
 }

 static int impd1_remove_one(struct device *dev, void *data)
 {
 	device_unregister(dev);
 	return 0;
 }

 static void impd1_remove(struct lm_device *dev)
 {
 	struct impd1_module *impd1 = lm_get_drvdata(dev);
 	int i;

 	device_for_each_child(&dev->dev, NULL, impd1_remove_one);

 	for (i = 0; i < ARRAY_SIZE(impd1->clks); i++)
 		clkdev_drop(impd1->clks[i]);

 	lm_set_drvdata(dev, NULL);

 	iounmap(impd1->base);
 	kfree(impd1);
 	release_mem_region(dev->resource.start, SZ_4K);
 }

 static struct lm_driver impd1_driver = {
 	.drv = {
 		.name	= "impd1",
 	},
 	.probe		= impd1_probe,
 	.remove		= impd1_remove,
 };

 static int __init impd1_init(void)
 {
 	return lm_driver_register(&impd1_driver);
 }

 static void __exit impd1_exit(void)
 {
 	lm_driver_unregister(&impd1_driver);
 }

 module_init(impd1_init);
 module_exit(impd1_exit);

 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Integrator/IM-PD1 logic module core driver");
 MODULE_AUTHOR("Deep Blue Solutions Ltd");
	/*
	* linux/arch/arm/mach-integrator/impd1.c
	*
	* Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
	*
	* 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.
	*
	* This file provides the core support for the IM-PD1 module.
	*
	* Module / boot parameters.
	* lmid=n impd1.lmid=n - set the logic module position in stack to 'n'
	*/
	#include <linux/module.h>
	#include <linux/moduleparam.h>
	#include <linux/init.h>
	#include <linux/device.h>
	#include <linux/errno.h>
	#include <linux/mm.h>
	#include <linux/amba/bus.h>
	#include <linux/amba/clcd.h>
	#include <linux/io.h>
	#include <linux/slab.h>
	#include <linux/clkdev.h>

	#include <asm/hardware/icst.h>
	#include <mach/lm.h>
	#include <mach/impd1.h>
	#include <asm/sizes.h>

	static int module_id;

	module_param_named(lmid, module_id, int, 0444);
	MODULE_PARM_DESC(lmid, "logic module stack position");

	struct impd1_module {
	void __iomem *base;
	struct clk vcos[2];
	struct clk_lookup *clks[3];
	};

	static const struct icst_params impd1_vco_params = {
	.ref = 24000000, /* 24 MHz */
	.vco_max = ICST525_VCO_MAX_3V,
	.vco_min = ICST525_VCO_MIN,
	.vd_min = 12,
	.vd_max = 519,
	.rd_min = 3,
	.rd_max = 120,
	.s2div = icst525_s2div,
	.idx2s = icst525_idx2s,
	};

	static void impd1_setvco(struct clk *clk, struct icst_vco vco)
	{
	struct impd1_module *impd1 = clk->data;
	u32 val = vco.v \| (vco.r << 9) \| (vco.s << 16);

	writel(0xa05f, impd1->base + IMPD1_LOCK);
	writel(val, clk->vcoreg);
	writel(0, impd1->base + IMPD1_LOCK);

	#ifdef DEBUG
	vco.v = val & 0x1ff;
	vco.r = (val >> 9) & 0x7f;
	vco.s = (val >> 16) & 7;

	pr_debug("IM-PD1: VCO%d clock is %ld Hz\n",
	vconr, icst525_hz(&impd1_vco_params, vco));
	#endif
	}

	static const struct clk_ops impd1_clk_ops = {
	.round = icst_clk_round,
	.set = icst_clk_set,
	.setvco = impd1_setvco,
	};

	void impd1_tweak_control(struct device *dev, u32 mask, u32 val)
	{
	struct impd1_module *impd1 = dev_get_drvdata(dev);
	u32 cur;

	val &= mask;
	cur = readl(impd1->base + IMPD1_CTRL) & ~mask;
	writel(cur \| val, impd1->base + IMPD1_CTRL);
	}

	EXPORT_SYMBOL(impd1_tweak_control);

	/*
	* CLCD support
	*/
	#define PANEL PROSPECTOR

	#define LTM10C209 1
	#define PROSPECTOR 2
	#define SVGA 3
	#define VGA 4

	#if PANEL == VGA
	#define PANELTYPE vga
	static struct clcd_panel vga = {
	.mode = {
	.name = "VGA",
	.refresh = 60,
	.xres = 640,
	.yres = 480,
	.pixclock = 39721,
	.left_margin = 40,
	.right_margin = 24,
	.upper_margin = 32,
	.lower_margin = 11,
	.hsync_len = 96,
	.vsync_len = 2,
	.sync = 0,
	.vmode = FB_VMODE_NONINTERLACED,
	},
	.width = -1,
	.height = -1,
	.tim2 = TIM2_BCD \| TIM2_IPC,
	.cntl = CNTL_LCDTFT \| CNTL_LCDVCOMP(1),
	.caps = CLCD_CAP_5551,
	.connector = IMPD1_CTRL_DISP_VGA,
	.bpp = 16,
	.grayscale = 0,
	};

	#elif PANEL == SVGA
	#define PANELTYPE svga
	static struct clcd_panel svga = {
	.mode = {
	.name = "SVGA",
	.refresh = 0,
	.xres = 800,
	.yres = 600,
	.pixclock = 27778,
	.left_margin = 20,
	.right_margin = 20,
	.upper_margin = 5,
	.lower_margin = 5,
	.hsync_len = 164,
	.vsync_len = 62,
	.sync = 0,
	.vmode = FB_VMODE_NONINTERLACED,
	},
	.width = -1,
	.height = -1,
	.tim2 = TIM2_BCD,
	.cntl = CNTL_LCDTFT \| CNTL_LCDVCOMP(1),
	.connector = IMPD1_CTRL_DISP_VGA,
	.caps = CLCD_CAP_5551,
	.bpp = 16,
	.grayscale = 0,
	};

	#elif PANEL == PROSPECTOR
	#define PANELTYPE prospector
	static struct clcd_panel prospector = {
	.mode = {
	.name = "PROSPECTOR",
	.refresh = 0,
	.xres = 640,
	.yres = 480,
	.pixclock = 40000,
	.left_margin = 33,
	.right_margin = 64,
	.upper_margin = 36,
	.lower_margin = 7,
	.hsync_len = 64,
	.vsync_len = 25,
	.sync = FB_SYNC_HOR_HIGH_ACT \| FB_SYNC_VERT_HIGH_ACT,
	.vmode = FB_VMODE_NONINTERLACED,
	},
	.width = -1,
	.height = -1,
	.tim2 = TIM2_BCD,
	.cntl = CNTL_LCDTFT \| CNTL_LCDVCOMP(1),
	.caps = CLCD_CAP_5551,
	.fixedtimings = 1,
	.connector = IMPD1_CTRL_DISP_LCD,
	.bpp = 16,
	.grayscale = 0,
	};

	#elif PANEL == LTM10C209
	#define PANELTYPE ltm10c209
	/*
	* Untested.
	*/
	static struct clcd_panel ltm10c209 = {
	.mode = {
	.name = "LTM10C209",
	.refresh = 0,
	.xres = 640,
	.yres = 480,
	.pixclock = 40000,
	.left_margin = 20,
	.right_margin = 20,
	.upper_margin = 19,
	.lower_margin = 19,
	.hsync_len = 20,
	.vsync_len = 10,
	.sync = FB_SYNC_HOR_HIGH_ACT \| FB_SYNC_VERT_HIGH_ACT,
	.vmode = FB_VMODE_NONINTERLACED,
	},
	.width = -1,
	.height = -1,
	.tim2 = TIM2_BCD,
	.cntl = CNTL_LCDTFT \| CNTL_LCDVCOMP(1),
	.caps = CLCD_CAP_5551,
	.fixedtimings = 1,
	.connector = IMPD1_CTRL_DISP_LCD,
	.bpp = 16,
	.grayscale = 0,
	};
	#endif

	/*
	* Disable all display connectors on the interface module.
	*/
	static void impd1fb_clcd_disable(struct clcd_fb *fb)
	{
	impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK, 0);
	}

	/*
	* Enable the relevant connector on the interface module.
	*/
	static void impd1fb_clcd_enable(struct clcd_fb *fb)
	{
	impd1_tweak_control(fb->dev->dev.parent, IMPD1_CTRL_DISP_MASK,
	fb->panel->connector \| IMPD1_CTRL_DISP_ENABLE);
	}

	static int impd1fb_clcd_setup(struct clcd_fb *fb)
	{
	unsigned long framebase = fb->dev->res.start + 0x01000000;
	unsigned long framesize = SZ_1M;
	int ret = 0;

	fb->panel = &PANELTYPE;

	if (!request_mem_region(framebase, framesize, "clcd framebuffer")) {
	printk(KERN_ERR "IM-PD1: unable to reserve framebuffer\n");
	return -EBUSY;
	}

	fb->fb.screen_base = ioremap(framebase, framesize);
	if (!fb->fb.screen_base) {
	printk(KERN_ERR "IM-PD1: unable to map framebuffer\n");
	ret = -ENOMEM;
	goto free_buffer;
	}

	fb->fb.fix.smem_start = framebase;
	fb->fb.fix.smem_len = framesize;

	return 0;

	free_buffer:
	release_mem_region(framebase, framesize);
	return ret;
	}

	static int impd1fb_clcd_mmap(struct clcd_fb fb, struct vm_area_struct vma)
	{
	unsigned long start, size;

	start = vma->vm_pgoff + (fb->fb.fix.smem_start >> PAGE_SHIFT);
	size = vma->vm_end - vma->vm_start;

	return remap_pfn_range(vma, vma->vm_start, start, size,
	vma->vm_page_prot);
	}

	static void impd1fb_clcd_remove(struct clcd_fb *fb)
	{
	iounmap(fb->fb.screen_base);
	release_mem_region(fb->fb.fix.smem_start, fb->fb.fix.smem_len);
	}

	static struct clcd_board impd1_clcd_data = {
	.name = "IM-PD/1",
	.caps = CLCD_CAP_5551 \| CLCD_CAP_888,
	.check = clcdfb_check,
	.decode = clcdfb_decode,
	.disable = impd1fb_clcd_disable,
	.enable = impd1fb_clcd_enable,
	.setup = impd1fb_clcd_setup,
	.mmap = impd1fb_clcd_mmap,
	.remove = impd1fb_clcd_remove,
	};

	struct impd1_device {
	unsigned long offset;
	unsigned int irq[2];
	unsigned int id;
	void *platform_data;
	};

	static struct impd1_device impd1_devs[] = {
	{
	.offset = 0x03000000,
	.id = 0x00041190,
	}, {
	.offset = 0x00100000,
	.irq = { 1 },
	.id = 0x00141011,
	}, {
	.offset = 0x00200000,
	.irq = { 2 },
	.id = 0x00141011,
	}, {
	.offset = 0x00300000,
	.irq = { 3 },
	.id = 0x00041022,
	}, {
	.offset = 0x00400000,
	.irq = { 4 },
	.id = 0x00041061,
	}, {
	.offset = 0x00500000,
	.irq = { 5 },
	.id = 0x00041061,
	}, {
	.offset = 0x00600000,
	.irq = { 6 },
	.id = 0x00041130,
	}, {
	.offset = 0x00700000,
	.irq = { 7, 8 },
	.id = 0x00041181,
	}, {
	.offset = 0x00800000,
	.irq = { 9 },
	.id = 0x00041041,
	}, {
	.offset = 0x01000000,
	.irq = { 11 },
	.id = 0x00041110,
	.platform_data = &impd1_clcd_data,
	}
	};

	static struct clk fixed_14745600 = {
	.rate = 14745600,
	};

	static int impd1_probe(struct lm_device *dev)
	{
	struct impd1_module *impd1;
	int i, ret;

	if (dev->id != module_id)
	return -EINVAL;

	if (!request_mem_region(dev->resource.start, SZ_4K, "LM registers"))
	return -EBUSY;

	impd1 = kzalloc(sizeof(struct impd1_module), GFP_KERNEL);
	if (!impd1) {
	ret = -ENOMEM;
	goto release_lm;
	}

	impd1->base = ioremap(dev->resource.start, SZ_4K);
	if (!impd1->base) {
	ret = -ENOMEM;
	goto free_impd1;
	}

	lm_set_drvdata(dev, impd1);

	printk("IM-PD1 found at 0x%08lx\n",
	(unsigned long)dev->resource.start);

	for (i = 0; i < ARRAY_SIZE(impd1->vcos); i++) {
	impd1->vcos[i].ops = &impd1_clk_ops,
	impd1->vcos[i].owner = THIS_MODULE,
	impd1->vcos[i].params = &impd1_vco_params,
	impd1->vcos[i].data = impd1;
	}
	impd1->vcos[0].vcoreg = impd1->base + IMPD1_OSC1;
	impd1->vcos[1].vcoreg = impd1->base + IMPD1_OSC2;

	impd1->clks[0] = clkdev_alloc(&impd1->vcos[0], NULL, "lm%x:01000",
	dev->id);
	impd1->clks[1] = clkdev_alloc(&fixed_14745600, NULL, "lm%x:00100",
	dev->id);
	impd1->clks[2] = clkdev_alloc(&fixed_14745600, NULL, "lm%x:00200",
	dev->id);
	for (i = 0; i < ARRAY_SIZE(impd1->clks); i++)
	clkdev_add(impd1->clks[i]);

	for (i = 0; i < ARRAY_SIZE(impd1_devs); i++) {
	struct impd1_device *idev = impd1_devs + i;
	struct amba_device *d;
	unsigned long pc_base;

	pc_base = dev->resource.start + idev->offset;

	d = amba_device_alloc(NULL, pc_base, SZ_4K);
	if (!d)
	continue;

	dev_set_name(&d->dev, "lm%x:%5.5lx", dev->id, idev->offset >> 12);
	d->dev.parent = &dev->dev;
	d->irq[0] = dev->irq;
	d->irq[1] = dev->irq;
	d->periphid = idev->id;
	d->dev.platform_data = idev->platform_data;

	ret = amba_device_add(d, &dev->resource);
	if (ret) {
	dev_err(&d->dev, "unable to register device: %d\n", ret);
	amba_device_put(d);
	}
	}

	return 0;

	free_impd1:
	if (impd1 && impd1->base)
	iounmap(impd1->base);
	kfree(impd1);
	release_lm:
	release_mem_region(dev->resource.start, SZ_4K);
	return ret;
	}

	static int impd1_remove_one(struct device dev, void data)
	{
	device_unregister(dev);
	return 0;
	}

	static void impd1_remove(struct lm_device *dev)
	{
	struct impd1_module *impd1 = lm_get_drvdata(dev);
	int i;

	device_for_each_child(&dev->dev, NULL, impd1_remove_one);

	for (i = 0; i < ARRAY_SIZE(impd1->clks); i++)
	clkdev_drop(impd1->clks[i]);

	lm_set_drvdata(dev, NULL);

	iounmap(impd1->base);
	kfree(impd1);
	release_mem_region(dev->resource.start, SZ_4K);
	}

	static struct lm_driver impd1_driver = {
	.drv = {
	.name = "impd1",
	},
	.probe = impd1_probe,
	.remove = impd1_remove,
	};

	static int __init impd1_init(void)
	{
	return lm_driver_register(&impd1_driver);
	}

	static void __exit impd1_exit(void)
	{
	lm_driver_unregister(&impd1_driver);
	}

	module_init(impd1_init);
	module_exit(impd1_exit);

	MODULE_LICENSE("GPL");
	MODULE_DESCRIPTION("Integrator/IM-PD1 logic module core driver");
	MODULE_AUTHOR("Deep Blue Solutions Ltd");