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path: root/drivers/sbus/char/bbc_i2c.c
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Diffstat (limited to 'drivers/sbus/char/bbc_i2c.c')
-rw-r--r--drivers/sbus/char/bbc_i2c.c70
1 files changed, 27 insertions, 43 deletions
diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c
index 7e30e5f6e03..c7763e482eb 100644
--- a/drivers/sbus/char/bbc_i2c.c
+++ b/drivers/sbus/char/bbc_i2c.c
@@ -11,7 +11,6 @@
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/delay.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/of_device.h>
@@ -51,7 +50,7 @@
* The second controller also connects to the smartcard reader, if present.
*/
-static void set_device_claimage(struct bbc_i2c_bus *bp, struct of_device *op, int val)
+static void set_device_claimage(struct bbc_i2c_bus *bp, struct platform_device *op, int val)
{
int i;
@@ -66,9 +65,9 @@ static void set_device_claimage(struct bbc_i2c_bus *bp, struct of_device *op, in
#define claim_device(BP,ECHILD) set_device_claimage(BP,ECHILD,1)
#define release_device(BP,ECHILD) set_device_claimage(BP,ECHILD,0)
-struct of_device *bbc_i2c_getdev(struct bbc_i2c_bus *bp, int index)
+struct platform_device *bbc_i2c_getdev(struct bbc_i2c_bus *bp, int index)
{
- struct of_device *op = NULL;
+ struct platform_device *op = NULL;
int curidx = 0, i;
for (i = 0; i < NUM_CHILDREN; i++) {
@@ -86,7 +85,7 @@ out:
return NULL;
}
-struct bbc_i2c_client *bbc_i2c_attach(struct bbc_i2c_bus *bp, struct of_device *op)
+struct bbc_i2c_client *bbc_i2c_attach(struct bbc_i2c_bus *bp, struct platform_device *op)
{
struct bbc_i2c_client *client;
const u32 *reg;
@@ -97,7 +96,7 @@ struct bbc_i2c_client *bbc_i2c_attach(struct bbc_i2c_bus *bp, struct of_device *
client->bp = bp;
client->op = op;
- reg = of_get_property(op->node, "reg", NULL);
+ reg = of_get_property(op->dev.of_node, "reg", NULL);
if (!reg) {
kfree(client);
return NULL;
@@ -114,7 +113,7 @@ struct bbc_i2c_client *bbc_i2c_attach(struct bbc_i2c_bus *bp, struct of_device *
void bbc_i2c_detach(struct bbc_i2c_client *client)
{
struct bbc_i2c_bus *bp = client->bp;
- struct of_device *op = client->op;
+ struct platform_device *op = client->op;
release_device(bp, op);
kfree(client);
@@ -233,13 +232,9 @@ int bbc_i2c_write_buf(struct bbc_i2c_client *client,
int ret = 0;
while (len > 0) {
- int err = bbc_i2c_writeb(client, *buf, off);
-
- if (err < 0) {
- ret = err;
+ ret = bbc_i2c_writeb(client, *buf, off);
+ if (ret < 0)
break;
- }
-
len--;
buf++;
off++;
@@ -253,11 +248,9 @@ int bbc_i2c_read_buf(struct bbc_i2c_client *client,
int ret = 0;
while (len > 0) {
- int err = bbc_i2c_readb(client, buf, off);
- if (err < 0) {
- ret = err;
+ ret = bbc_i2c_readb(client, buf, off);
+ if (ret < 0)
break;
- }
len--;
buf++;
off++;
@@ -288,7 +281,7 @@ static irqreturn_t bbc_i2c_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static void __init reset_one_i2c(struct bbc_i2c_bus *bp)
+static void reset_one_i2c(struct bbc_i2c_bus *bp)
{
writeb(I2C_PCF_PIN, bp->i2c_control_regs + 0x0);
writeb(bp->own, bp->i2c_control_regs + 0x1);
@@ -297,7 +290,7 @@ static void __init reset_one_i2c(struct bbc_i2c_bus *bp)
writeb(I2C_PCF_IDLE, bp->i2c_control_regs + 0x0);
}
-static struct bbc_i2c_bus * __init attach_one_i2c(struct of_device *op, int index)
+static struct bbc_i2c_bus * attach_one_i2c(struct platform_device *op, int index)
{
struct bbc_i2c_bus *bp;
struct device_node *dp;
@@ -317,7 +310,7 @@ static struct bbc_i2c_bus * __init attach_one_i2c(struct of_device *op, int inde
bp->waiting = 0;
init_waitqueue_head(&bp->wq);
- if (request_irq(op->irqs[0], bbc_i2c_interrupt,
+ if (request_irq(op->archdata.irqs[0], bbc_i2c_interrupt,
IRQF_SHARED, "bbc_i2c", bp))
goto fail;
@@ -327,10 +320,10 @@ static struct bbc_i2c_bus * __init attach_one_i2c(struct of_device *op, int inde
spin_lock_init(&bp->lock);
entry = 0;
- for (dp = op->node->child;
+ for (dp = op->dev.of_node->child;
dp && entry < 8;
dp = dp->sibling, entry++) {
- struct of_device *child_op;
+ struct platform_device *child_op;
child_op = of_find_device_by_node(dp);
bp->devs[entry].device = child_op;
@@ -361,8 +354,7 @@ fail:
extern int bbc_envctrl_init(struct bbc_i2c_bus *bp);
extern void bbc_envctrl_cleanup(struct bbc_i2c_bus *bp);
-static int __devinit bbc_i2c_probe(struct of_device *op,
- const struct of_device_id *match)
+static int bbc_i2c_probe(struct platform_device *op)
{
struct bbc_i2c_bus *bp;
int err, index = 0;
@@ -373,7 +365,7 @@ static int __devinit bbc_i2c_probe(struct of_device *op,
err = bbc_envctrl_init(bp);
if (err) {
- free_irq(op->irqs[0], bp);
+ free_irq(op->archdata.irqs[0], bp);
if (bp->i2c_bussel_reg)
of_iounmap(&op->resource[0], bp->i2c_bussel_reg, 1);
if (bp->i2c_control_regs)
@@ -386,13 +378,13 @@ static int __devinit bbc_i2c_probe(struct of_device *op,
return err;
}
-static int __devexit bbc_i2c_remove(struct of_device *op)
+static int bbc_i2c_remove(struct platform_device *op)
{
struct bbc_i2c_bus *bp = dev_get_drvdata(&op->dev);
bbc_envctrl_cleanup(bp);
- free_irq(op->irqs[0], bp);
+ free_irq(op->archdata.irqs[0], bp);
if (bp->i2c_bussel_reg)
of_iounmap(&op->resource[0], bp->i2c_bussel_reg, 1);
@@ -413,24 +405,16 @@ static const struct of_device_id bbc_i2c_match[] = {
};
MODULE_DEVICE_TABLE(of, bbc_i2c_match);
-static struct of_platform_driver bbc_i2c_driver = {
- .name = "bbc_i2c",
- .match_table = bbc_i2c_match,
+static struct platform_driver bbc_i2c_driver = {
+ .driver = {
+ .name = "bbc_i2c",
+ .owner = THIS_MODULE,
+ .of_match_table = bbc_i2c_match,
+ },
.probe = bbc_i2c_probe,
- .remove = __devexit_p(bbc_i2c_remove),
+ .remove = bbc_i2c_remove,
};
-static int __init bbc_i2c_init(void)
-{
- return of_register_driver(&bbc_i2c_driver, &of_bus_type);
-}
-
-static void __exit bbc_i2c_exit(void)
-{
- of_unregister_driver(&bbc_i2c_driver);
-}
-
-module_init(bbc_i2c_init);
-module_exit(bbc_i2c_exit);
+module_platform_driver(bbc_i2c_driver);
MODULE_LICENSE("GPL");