linux-kernel - [PATCH 03/05] resource: add new IORESOURCE

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Date:	Fri, 18 Jul 2008 16:40:27 +0900
From:	Magnus Damm <magnus.damm@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	linux-sh@...r.kernel.org, gregkh@...e.de, lethal@...ux-sh.org,
	i2c@...sensors.org, Magnus Damm <magnus.damm@...il.com>,
	akpm@...ux-foundation.org
Subject: [PATCH 03/05] resource: add new IORESOURCE_CLK type V2

From: Magnus Damm <damm@...l.co.jp>

So far struct resource has been used with the types IORESOURCE_MEM,
IORESOURCE_IO and IORESOUCE_IRQ to pass I/O and interrupt parameters
to platform drivers. This patch extends this with IORESOURCE_CLK which
should be used to pass a clock string to the platform driver. This
string points out which specific clock that should be used with clk_get()
for a certain driver instance.

Using a hard coded strings in the device driver won't do since we may
have multiple instances of drivers that need to use different clocks.

Signed-off-by: Magnus Damm <damm@...l.co.jp>
---

 Changes since V1:
 - Use a new bit for IORESOURCE_CLK instead of switching to a counter

 include/linux/ioport.h |   17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

--- 0003/include/linux/ioport.h
+++ work/include/linux/ioport.h	2008-07-18 14:29:48.000000000 +0900
@@ -34,20 +34,21 @@ struct resource_list {
  */
 #define IORESOURCE_BITS		0x000000ff	/* Bus-specific bits */
 
-#define IORESOURCE_TYPE_BITS	0x00000f00	/* Resource type */
+#define IORESOURCE_TYPE_BITS	0x00001f00	/* Resource type */
 #define IORESOURCE_IO		0x00000100
 #define IORESOURCE_MEM		0x00000200
 #define IORESOURCE_IRQ		0x00000400
 #define IORESOURCE_DMA		0x00000800
+#define IORESOURCE_CLK		0x00001000
 
-#define IORESOURCE_PREFETCH	0x00001000	/* No side effects */
-#define IORESOURCE_READONLY	0x00002000
-#define IORESOURCE_CACHEABLE	0x00004000
-#define IORESOURCE_RANGELENGTH	0x00008000
-#define IORESOURCE_SHADOWABLE	0x00010000
+#define IORESOURCE_PREFETCH	0x00002000	/* No side effects */
+#define IORESOURCE_READONLY	0x00004000
+#define IORESOURCE_CACHEABLE	0x00008000
+#define IORESOURCE_RANGELENGTH	0x00010000
+#define IORESOURCE_SHADOWABLE	0x00020000
 
-#define IORESOURCE_SIZEALIGN	0x00020000	/* size indicates alignment */
-#define IORESOURCE_STARTALIGN	0x00040000	/* start field is alignment */
+#define IORESOURCE_SIZEALIGN	0x00040000	/* size indicates alignment */
+#define IORESOURCE_STARTALIGN	0x00080000	/* start field is alignment */
 
 #define IORESOURCE_DISABLED	0x10000000
 #define IORESOURCE_UNSET	0x20000000
--
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