[ARM] omap: convert OMAP drivers to use ioremap()

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/char/hw_random/omap-rng.c

@@ -118,18 +118,21 @@ static int __init omap_rng_probe(struct platform_device *pdev)
 
 	mem = request_mem_region(res->start, res->end - res->start + 1,
 				 pdev->name);
-	if (mem == NULL)
-		return -EBUSY;
+	if (mem == NULL) {
+		ret = -EBUSY;
+		goto err_region;
+	}
 
 	dev_set_drvdata(&pdev->dev, mem);
-	rng_base = (u32 __force __iomem *)io_p2v(res->start);
+	rng_base = ioremap(res->start, res->end - res->start + 1);
+	if (!rng_base) {
+		ret = -ENOMEM;
+		goto err_ioremap;
+	}
 
 	ret = hwrng_register(&omap_rng_ops);
-	if (ret) {
-		release_resource(mem);
-		rng_base = NULL;
-		return ret;
-	}
+	if (ret)
+		goto err_register;
 
 	dev_info(&pdev->dev, "OMAP Random Number Generator ver. %02x\n",
 		omap_rng_read_reg(RNG_REV_REG));
@@ -138,6 +141,18 @@ static int __init omap_rng_probe(struct platform_device *pdev)
 	rng_dev = pdev;
 
 	return 0;
+
+err_register:
+	iounmap(rng_base);
+	rng_base = NULL;
+err_ioremap:
+	release_resource(mem);
+err_region:
+	if (cpu_is_omap24xx()) {
+		clk_disable(rng_ick);
+		clk_put(rng_ick);
+	}
+	return ret;
 }
 
 static int __exit omap_rng_remove(struct platform_device *pdev)
@@ -148,6 +163,8 @@ static int __exit omap_rng_remove(struct platform_device *pdev)
 
 	omap_rng_write_reg(RNG_MASK_REG, 0x0);
 
+	iounmap(rng_base);
+
 	if (cpu_is_omap24xx()) {
 		clk_disable(rng_ick);
 		clk_put(rng_ick);

drivers/i2c/busses/i2c-omap.c

@@ -589,11 +589,16 @@ omap_i2c_probe(struct platform_device *pdev)
 
 	dev->dev = &pdev->dev;
 	dev->irq = irq->start;
-	dev->base = (void __iomem *) IO_ADDRESS(mem->start);
+	dev->base = ioremap(mem->start, mem->end - mem->start + 1);
+	if (!dev->base) {
+		r = -ENOMEM;
+		goto err_free_mem;
+	}
+
 	platform_set_drvdata(pdev, dev);
 
 	if ((r = omap_i2c_get_clocks(dev)) != 0)
-		goto err_free_mem;
+		goto err_iounmap;
 
 	omap_i2c_unidle(dev);
 
@@ -640,6 +645,8 @@ err_unuse_clocks:
 	omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
 	omap_i2c_idle(dev);
 	omap_i2c_put_clocks(dev);
+err_iounmap:
+	iounmap(dev->base);
 err_free_mem:
 	platform_set_drvdata(pdev, NULL);
 	kfree(dev);
@@ -661,6 +668,7 @@ omap_i2c_remove(struct platform_device *pdev)
 	i2c_del_adapter(&dev->adapter);
 	omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
 	omap_i2c_put_clocks(dev);
+	iounmap(dev->base);
 	kfree(dev);
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	release_mem_region(mem->start, (mem->end - mem->start) + 1);

drivers/mmc/host/omap.c

@@ -1455,7 +1455,9 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
 
 	host->irq = irq;
 	host->phys_base = host->mem_res->start;
-	host->virt_base = (void __iomem *) IO_ADDRESS(host->phys_base);
+	host->virt_base = ioremap(res->start, res->end - res->start + 1);
+	if (!host->virt_base)
+		goto err_ioremap;
 
 	if (cpu_is_omap24xx()) {
 		host->iclk = clk_get(&pdev->dev, "mmc_ick");
@@ -1510,6 +1512,8 @@ err_free_iclk:
 		clk_put(host->iclk);
 	}
 err_free_mmc_host:
+	iounmap(host->virt_base);
+err_ioremap:
 	kfree(host);
 err_free_mem_region:
 	release_mem_region(res->start, res->end - res->start + 1);
@@ -1536,6 +1540,7 @@ static int mmc_omap_remove(struct platform_device *pdev)
 	if (host->fclk && !IS_ERR(host->fclk))
 		clk_put(host->fclk);
 
+	iounmap(host->virt_base);
 	release_mem_region(pdev->resource[0].start,
 			   pdev->resource[0].end - pdev->resource[0].start + 1);
 

drivers/spi/omap2_mcspi.c

@@ -1009,7 +1009,12 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
 	}
 
 	mcspi->phys = r->start;
-	mcspi->base = (void __iomem *) io_p2v(r->start);
+	mcspi->base = ioremap(r->start, r->end - r->start + 1);
+	if (!mcspi->base) {
+		dev_dbg(&pdev->dev, "can't ioremap MCSPI\n");
+		status = -ENOMEM;
+		goto err1aa;
+	}
 
 	INIT_WORK(&mcspi->work, omap2_mcspi_work);
 
@@ -1059,6 +1064,8 @@ err3:
 err2:
 	clk_put(mcspi->ick);
 err1a:
+	iounmap(mcspi->base);
+err1aa:
 	release_mem_region(r->start, (r->end - r->start) + 1);
 err1:
 	spi_master_put(master);
@@ -1071,6 +1078,7 @@ static int __exit omap2_mcspi_remove(struct platform_device *pdev)
 	struct omap2_mcspi	*mcspi;
 	struct omap2_mcspi_dma	*dma_channels;
 	struct resource		*r;
+	void __iomem *base;
 
 	master = dev_get_drvdata(&pdev->dev);
 	mcspi = spi_master_get_devdata(master);
@@ -1082,7 +1090,9 @@ static int __exit omap2_mcspi_remove(struct platform_device *pdev)
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	release_mem_region(r->start, (r->end - r->start) + 1);
 
+	base = mcspi->base;
 	spi_unregister_master(master);
+	iounmap(base);
 	kfree(dma_channels);
 
 	return 0;

drivers/spi/omap_uwire.c

@@ -59,7 +59,6 @@
  * and irqs should show there too...
  */
 #define UWIRE_BASE_PHYS		0xFFFB3000
-#define UWIRE_BASE		((void *__iomem)IO_ADDRESS(UWIRE_BASE_PHYS))
 
 /* uWire Registers: */
 #define UWIRE_IO_SIZE 0x20
@@ -103,16 +102,21 @@ struct uwire_state {
 };
 
 /* REVISIT compile time constant for idx_shift? */
+/*
+ * Or, put it in a structure which is used throughout the driver;
+ * that avoids having to issue two loads for each bit of static data.
+ */
 static unsigned int uwire_idx_shift;
+static void __iomem *uwire_base;
 
 static inline void uwire_write_reg(int idx, u16 val)
 {
-	__raw_writew(val, UWIRE_BASE + (idx << uwire_idx_shift));
+	__raw_writew(val, uwire_base + (idx << uwire_idx_shift));
 }
 
 static inline u16 uwire_read_reg(int idx)
 {
-	return __raw_readw(UWIRE_BASE + (idx << uwire_idx_shift));
+	return __raw_readw(uwire_base + (idx << uwire_idx_shift));
 }
 
 static inline void omap_uwire_configure_mode(u8 cs, unsigned long flags)
@@ -492,6 +496,14 @@ static int __init uwire_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	uwire = spi_master_get_devdata(master);
+
+	uwire_base = ioremap(UWIRE_BASE_PHYS, UWIRE_IO_SIZE);
+	if (!uwire_base) {
+		dev_dbg(&pdev->dev, "can't ioremap UWIRE\n");
+		spi_master_put(master);
+		return -ENOMEM;
+	}
+
 	dev_set_drvdata(&pdev->dev, uwire);
 
 	uwire->ck = clk_get(&pdev->dev, "armxor_ck");
@@ -520,8 +532,10 @@ static int __init uwire_probe(struct platform_device *pdev)
 	uwire->bitbang.txrx_bufs = uwire_txrx;
 
 	status = spi_bitbang_start(&uwire->bitbang);
-	if (status < 0)
+	if (status < 0) {
 		uwire_off(uwire);
+		iounmap(uwire_base);
+	}
 	return status;
 }
 
@@ -534,6 +548,7 @@ static int __exit uwire_remove(struct platform_device *pdev)
 
 	status = spi_bitbang_stop(&uwire->bitbang);
 	uwire_off(uwire);
+	iounmap(uwire_base);
 	return status;
 }
 

drivers/usb/host/ohci-omap.c

@@ -344,7 +344,12 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
 		goto err1;
 	}
 
-	hcd->regs = (void __iomem *) (int) IO_ADDRESS(hcd->rsrc_start);
+	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	if (!hcd->regs) {
+		dev_err(&pdev->dev, "can't ioremap OHCI HCD\n");
+		retval = -ENOMEM;
+		goto err2;
+	}
 
 	ohci = hcd_to_ohci(hcd);
 	ohci_hcd_init(ohci);
@@ -355,11 +360,11 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		retval = -ENXIO;
-		goto err2;
+		goto err3;
 	}
 	retval = usb_add_hcd(hcd, irq, IRQF_DISABLED);
 	if (retval)
-		goto err2;
+		goto err3;
 
 	host_initialized = 1;
 
@@ -367,6 +372,8 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
 		omap_ohci_clock_power(0);
 
 	return 0;
+err3:
+	iounmap(hcd->regs);
 err2:
 	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err1:
@@ -401,6 +408,7 @@ usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
 	}
 	if (machine_is_omap_osk())
 		omap_free_gpio(9);
+	iounmap(hcd->regs);
 	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 	clk_put(usb_dc_ck);

drivers/video/omap/dispc.c

@@ -156,7 +156,7 @@ struct resmap {
 };
 
 static struct {
-	u32		base;
+	void __iomem	*base;
 
 	struct omapfb_mem_desc	mem_desc;
 	struct resmap		*res_map[DISPC_MEMTYPE_NUM];
@@ -1349,14 +1349,19 @@ static int omap_dispc_init(struct omapfb_device *fbdev, int ext_mode,
 
 	memset(&dispc, 0, sizeof(dispc));
 
-	dispc.base = io_p2v(DISPC_BASE);
+	dispc.base = ioremap(DISPC_BASE, SZ_1K);
+	if (!dispc.base) {
+		dev_err(fbdev->dev, "can't ioremap DISPC\n");
+		return -ENOMEM;
+	}
+
 	dispc.fbdev = fbdev;
 	dispc.ext_mode = ext_mode;
 
 	init_completion(&dispc.frame_done);
 
 	if ((r = get_dss_clocks()) < 0)
-		return r;
+		goto fail0;
 
 	enable_interface_clocks(1);
 	enable_lcd_clocks(1);
@@ -1464,7 +1469,8 @@ fail1:
 	enable_lcd_clocks(0);
 	enable_interface_clocks(0);
 	put_dss_clocks();
-
+fail0:
+	iounmap(dispc.base);
 	return r;
 }
 
@@ -1481,6 +1487,7 @@ static void omap_dispc_cleanup(void)
 	free_irq(INT_24XX_DSS_IRQ, dispc.fbdev);
 	enable_interface_clocks(0);
 	put_dss_clocks();
+	iounmap(dispc.base);
 }
 
 const struct lcd_ctrl omap2_int_ctrl = {

drivers/video/omap/rfbi.c

@@ -59,7 +59,7 @@
 #define DISPC_CONTROL		0x0040
 
 static struct {
-	u32		base;
+	void __iomem	*base;
 	void		(*lcdc_callback)(void *data);
 	void		*lcdc_callback_data;
 	unsigned long	l4_khz;
@@ -518,7 +518,11 @@ static int rfbi_init(struct omapfb_device *fbdev)
 	int r;
 
 	rfbi.fbdev = fbdev;
-	rfbi.base = io_p2v(RFBI_BASE);
+	rfbi.base = ioremap(RFBI_BASE, SZ_1K);
+	if (!rfbi.base) {
+		dev_err(fbdev->dev, "can't ioremap RFBI\n");
+		return -ENOMEM;
+	}
 
 	if ((r = rfbi_get_clocks()) < 0)
 		return r;
@@ -566,6 +570,7 @@ static void rfbi_cleanup(void)
 {
 	omap_dispc_free_irq();
 	rfbi_put_clocks();
+	iounmap(rfbi.base);
 }
 
 const struct lcd_ctrl_extif omap2_ext_if = {

drivers/video/omap/sossi.c

@@ -574,7 +574,12 @@ static int sossi_init(struct omapfb_device *fbdev)
 	struct clk *dpll1out_ck;
 	int r;
 
-	sossi.base = (void __iomem *)IO_ADDRESS(OMAP_SOSSI_BASE);
+	sossi.base = ioremap(OMAP_SOSSI_BASE, SZ_1K);
+	if (!sossi.base) {
+		dev_err(fbdev->dev, "can't ioremap SoSSI\n");
+		return -ENOMEM;
+	}
+
 	sossi.fbdev = fbdev;
 	spin_lock_init(&sossi.lock);
 
@@ -665,6 +670,7 @@ static void sossi_cleanup(void)
 {
 	omap_lcdc_free_dma_callback();
 	clk_put(sossi.fck);
+	iounmap(sossi.base);
 }
 
 struct lcd_ctrl_extif omap1_ext_if = {