linux-kernel - Re: [PATCH] Generic platform device IDE driver

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Date:	Wed, 4 Oct 2006 21:25:43 +0900
From:	girish <girishvg@...il.com>
To:	Paul Mundt <lethal@...ux-sh.org>
Cc:	B.Zolnierkiewicz@...a.pw.edu.pl, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, rmk@....linux.org.uk, gregkh@...e.de,
	ysato@...rs.sourceforge.jp
Subject: Re: [PATCH] Generic platform device IDE driver


On Oct 5, 2006, at 5:02 AM, Paul Mundt wrote:

> On Wed, Oct 04, 2006 at 08:30:36PM +0900, girish wrote:
>> question:  where is linux/ide-platform.h header?
>>
> answer: there isn't one, as it's not needed. The reason for using
> platform devices is so we get _away_ from this ridiculous static  
> set of
> definitions for I/O addresses and IRQs that are sprinkled around a lot
> of these drivers.

i wrote wrong file name:

where is linux/platform_device.h file?

as per the patch :


+#include <linux/ide.h>
+#include <linux/platform_device.h>
+
+/*
+ * Users use per-port registration with a simple set of 3 resources
+ * per port:
+ * 		- I/O Base (IORESOURCE_IO)
+ * 		- CTL Base (IORESOURCE_IO)
+ * 		- IRQ	   (IORESOURCE_IRQ)
+ */
+static int __devinit ide_platform_probe(struct platform_device *dev)
+{
+	struct resource *io_res, *ctl_res;
+	hw_regs_t hw;
+
+	if (unlikely(dev->num_resources != 3)) {
+		dev_err(&dev->dev, "invalid number of resources\n");
+		return -EINVAL;
+	}
+
+	io_res = platform_get_resource(dev, IORESOURCE_IO, 0);
+	if (unlikely(io_res == NULL))
+		return -EINVAL;
+
-
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