bbc_i2c: Convert to pure OF driver.

This thing was a mess, who wrote this junk? :)

Luckily we'll soon have nice generic I2C layer drivers for this PCF
based I2C stuff on sparc64.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 70 insertions, 5 deletions

diff --git a/drivers/sbus/char/bbc_i2c.h b/drivers/sbus/char/bbc_i2c.h
index fb01bd17704..83c4811b7b5 100644
--- a/drivers/sbus/char/bbc_i2c.h
+++ b/drivers/sbus/char/bbc_i2c.h
@@ -1,14 +1,79 @@
-/* $Id: bbc_i2c.h,v 1.2 2001/04/02 09:59:25 davem Exp $ */
 #ifndef _BBC_I2C_H
 #define _BBC_I2C_H
 
-#include <asm/ebus.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/list.h>
 
-struct bbc_i2c_client;
+struct bbc_i2c_client {
+	struct bbc_i2c_bus		*bp;
+	struct of_device		*op;
+	int				bus;
+	int				address;
+};
+
+enum fan_action { FAN_SLOWER, FAN_SAME, FAN_FASTER, FAN_FULLBLAST, FAN_STATE_MAX };
+
+struct bbc_cpu_temperature {
+	struct list_head		bp_list;
+	struct list_head		glob_list;
+
+	struct bbc_i2c_client		*client;
+	int				index;
+
+	/* Current readings, and history. */
+	s8				curr_cpu_temp;
+	s8				curr_amb_temp;
+	s8				prev_cpu_temp;
+	s8				prev_amb_temp;
+	s8				avg_cpu_temp;
+	s8				avg_amb_temp;
+
+	int				sample_tick;
+
+	enum fan_action			fan_todo[2];
+#define FAN_AMBIENT	0
+#define FAN_CPU		1
+};
+
+struct bbc_fan_control {
+	struct list_head		bp_list;
+	struct list_head		glob_list;
+
+	struct bbc_i2c_client 		*client;
+	int 				index;
+
+	int				psupply_fan_on;
+	int				cpu_fan_speed;
+	int				system_fan_speed;
+};
+
+#define NUM_CHILDREN	8
+
+struct bbc_i2c_bus {
+	struct bbc_i2c_bus		*next;
+	int				index;
+	spinlock_t			lock;
+	void				__iomem *i2c_bussel_reg;
+	void				__iomem *i2c_control_regs;
+	unsigned char			own, clock;
+
+	wait_queue_head_t		wq;
+	volatile int			waiting;
+
+	struct list_head		temps;
+	struct list_head		fans;
+
+	struct of_device		*op;
+	struct {
+		struct of_device	*device;
+		int			client_claimed;
+	} devs[NUM_CHILDREN];
+};
 
 /* Probing and attachment. */
-extern struct linux_ebus_child *bbc_i2c_getdev(int);
-extern struct bbc_i2c_client *bbc_i2c_attach(struct linux_ebus_child *);
+extern struct of_device *bbc_i2c_getdev(struct bbc_i2c_bus *, int);
+extern struct bbc_i2c_client *bbc_i2c_attach(struct bbc_i2c_bus *bp, struct of_device *);
 extern void bbc_i2c_detach(struct bbc_i2c_client *);
 
 /* Register read/write.  NOTE: Blocking! */