[ARM] 5544/1: Trust PrimeCell resource sizes

I found the PrimeCell/AMBA Bus drivers distrusting the resource
passed in as part of the struct amba_device abstraction. This
patch removes all hard coded resource sizes found in the PrimeCell
drivers and move the responsibility of this definition back to
the platform/board device definition, which already exist and
appear to be correct for all in-tree users of these drivers.
We do this using the resource_size() inline function which was
also replicated in the only driver using the resource size, so
that has been changed too. The KMI_SIZE was left in kmi.h in case
someone likes it. Test-compiled against Versatile and Integrator
defconfigs, seems to work but I don't posess these boards and
cannot test them.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/input/serio/ambakmi.c

@@ -135,7 +135,7 @@ static int amba_kmi_probe(struct amba_device *dev, struct amba_id *id)
 	io->dev.parent	= &dev->dev;
 
 	kmi->io 	= io;
-	kmi->base	= ioremap(dev->res.start, KMI_SIZE);
+	kmi->base	= ioremap(dev->res.start, resource_size(&dev->res));
 	if (!kmi->base) {
 		ret = -ENOMEM;
 		goto out;

drivers/mmc/host/mmci.c

@@ -546,7 +546,7 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
 		host->mclk = clk_get_rate(host->clk);
 		DBG(host, "eventual mclk rate: %u Hz\n", host->mclk);
 	}
-	host->base = ioremap(dev->res.start, SZ_4K);
+	host->base = ioremap(dev->res.start, resource_size(&dev->res));
 	if (!host->base) {
 		ret = -ENOMEM;
 		goto clk_disable;

drivers/rtc/rtc-pl030.c

@@ -117,7 +117,7 @@ static int pl030_probe(struct amba_device *dev, struct amba_id *id)
 		goto err_rtc;
 	}
 
-	rtc->base = ioremap(dev->res.start, SZ_4K);
+	rtc->base = ioremap(dev->res.start, resource_size(&dev->res));
 	if (!rtc->base) {
 		ret = -ENOMEM;
 		goto err_map;

drivers/rtc/rtc-pl031.c

@@ -142,8 +142,7 @@ static int pl031_probe(struct amba_device *adev, struct amba_id *id)
 		goto out;
 	}
 
-	ldata->base = ioremap(adev->res.start,
-			      adev->res.end - adev->res.start + 1);
+	ldata->base = ioremap(adev->res.start, resource_size(&adev->res));
 	if (!ldata->base) {
 		ret = -ENOMEM;
 		goto out_no_remap;

drivers/serial/amba-pl010.c

@@ -686,7 +686,7 @@ static int pl010_probe(struct amba_device *dev, struct amba_id *id)
 		goto out;
 	}
 
-	base = ioremap(dev->res.start, PAGE_SIZE);
+	base = ioremap(dev->res.start, resource_size(&dev->res));
 	if (!base) {
 		ret = -ENOMEM;
 		goto free;

drivers/serial/amba-pl011.c

@@ -767,7 +767,7 @@ static int pl011_probe(struct amba_device *dev, struct amba_id *id)
 		goto out;
 	}
 
-	base = ioremap(dev->res.start, PAGE_SIZE);
+	base = ioremap(dev->res.start, resource_size(&dev->res));
 	if (!base) {
 		ret = -ENOMEM;
 		goto free;

drivers/video/amba-clcd.c

@@ -351,7 +351,7 @@ static int clcdfb_register(struct clcd_fb *fb)
 	}
 
 	fb->fb.fix.mmio_start	= fb->dev->res.start;
-	fb->fb.fix.mmio_len	= 4096;
+	fb->fb.fix.mmio_len	= resource_size(&fb->dev->res);
 
 	fb->regs = ioremap(fb->fb.fix.mmio_start, fb->fb.fix.mmio_len);
 	if (!fb->regs) {

sound/arm/aaci.c

@@ -1089,7 +1089,7 @@ static int __devinit aaci_probe(struct amba_device *dev, struct amba_id *id)
 		goto out;
 	}
 
-	aaci->base = ioremap(dev->res.start, SZ_4K);
+	aaci->base = ioremap(dev->res.start, resource_size(&dev->res));
 	if (!aaci->base) {
 		ret = -ENOMEM;
 		goto out;