mtd/include/linux/mtd nand.h,1.64,1.65

[gleixner at infradead.org]

Update of /home/cvs/mtd/include/linux/mtd
In directory phoenix.infradead.org:/tmp/cvs-serv19953

Modified Files:
	nand.h 
Log Message:
add support for hardware controllers shared by multiple independend devices

Index: nand.h
===================================================================
RCS file: /home/cvs/mtd/include/linux/mtd/nand.h,v
retrieving revision 1.64
retrieving revision 1.65
diff -u -r1.64 -r1.65
--- nand.h	16 Sep 2004 23:26:08 -0000	1.64
+++ nand.h	23 Sep 2004 23:35:21 -0000	1.65
@@ -212,6 +212,18 @@
 	FL_CACHEDPRG,
 } nand_state_t;
 
+/* Keep gcc happy */
+struct nand_chip;
+
+/**
+ * struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independend devices
+ * @lock:               protection lock  
+ * @active:		the mtd device which holds the controller currently
+ */
+struct nand_hw_control {
+	spinlock_t	 lock;
+	struct nand_chip *active;
+};
 
 /**
  * struct nand_chip - NAND Private Flash Chip Data
@@ -265,6 +277,7 @@
  * @bbt:		[INTERN] bad block table pointer
  * @bbt_td:		[REPLACEABLE] bad block table descriptor for flash lookup
  * @bbt_md:		[REPLACEABLE] bad block table mirror descriptor
+ * @controller		[OPTIONAL] a pointer to a hardware controller structure which is shared among multiple independend devices
  * @priv:		[OPTIONAL] pointer to private chip date
  */
  
@@ -317,6 +330,7 @@
 	uint8_t		*bbt;
 	struct nand_bbt_descr	*bbt_td;
 	struct nand_bbt_descr	*bbt_md;
+	struct nand_hw_control  *controller;
 	void		*priv;
 };