i2c-pca-isa: Port to the new device driver model
Port the i2c-pca-isa driver to the new device driver model. I'm
using Rene Herman's new isa bus type, as it fits the needs nicely. One
benefit is that we can now give a proper parent to our i2c adapter.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index cc6536a..5f94e61 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -28,6 +28,7 @@
#include <linux/pci.h>
#include <linux/wait.h>
+#include <linux/isa.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-pca.h>
@@ -119,27 +120,26 @@
.name = "PCA9564 ISA Adapter",
};
-static int __init pca_isa_init(void)
+static int __devinit pca_isa_probe(struct device *dev, unsigned int id)
{
-
init_waitqueue_head(&pca_wait);
- printk(KERN_INFO "i2c-pca-isa: i/o base %#08lx. irq %d\n", base, irq);
+ dev_info(dev, "i/o base %#08lx. irq %d\n", base, irq);
if (!request_region(base, IO_SIZE, "i2c-pca-isa")) {
- printk(KERN_ERR "i2c-pca-isa: I/O address %#08lx is in use.\n", base);
+ dev_err(dev, "I/O address %#08lx is in use\n", base);
goto out;
}
if (irq > -1) {
if (request_irq(irq, pca_handler, 0, "i2c-pca-isa", &pca_isa_ops) < 0) {
- printk(KERN_ERR "i2c-pca-isa: Request irq%d failed\n", irq);
+ dev_err(dev, "Request irq%d failed\n", irq);
goto out_region;
}
}
if (i2c_pca_add_bus(&pca_isa_ops) < 0) {
- printk(KERN_ERR "i2c-pca-isa: Failed to add i2c bus\n");
+ dev_err(dev, "Failed to add i2c bus\n");
goto out_irq;
}
@@ -154,7 +154,7 @@
return -ENODEV;
}
-static void pca_isa_exit(void)
+static int __devexit pca_isa_remove(struct device *dev, unsigned int id)
{
i2c_del_adapter(&pca_isa_ops);
@@ -163,6 +163,27 @@
free_irq(irq, &pca_isa_ops);
}
release_region(base, IO_SIZE);
+
+ return 0;
+}
+
+static struct isa_driver pca_isa_driver = {
+ .probe = pca_isa_probe,
+ .remove = __devexit_p(pca_isa_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "i2c-pca-isa",
+ }
+};
+
+static int __init pca_isa_init(void)
+{
+ return isa_register_driver(&pca_isa_driver, 1);
+}
+
+static void __exit pca_isa_exit(void)
+{
+ isa_unregister_driver(&pca_isa_driver);
}
MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>");