[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)
Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).
We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index b07d01e..8126fdd 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -37,17 +37,8 @@
#include <linux/init.h>
#include <asm/io.h>
-static unsigned short normal_i2c[] = { I2C_CLIENT_END };
/* Address is autodetected, there is no default value */
-static unsigned int normal_isa[] = { 0x0000, I2C_CLIENT_ISA_END };
-static struct i2c_force_data forces[] = {{NULL}};
-
-enum chips { any_chip, smsc47m1 };
-static struct i2c_address_data addr_data = {
- .normal_i2c = normal_i2c,
- .normal_isa = normal_isa,
- .forces = forces,
-};
+static unsigned short address;
/* Super-I/0 registers and commands */
@@ -125,9 +116,7 @@
};
-static int smsc47m1_attach_adapter(struct i2c_adapter *adapter);
-static int smsc47m1_find(int *address);
-static int smsc47m1_detect(struct i2c_adapter *adapter, int address, int kind);
+static int smsc47m1_detect(struct i2c_adapter *adapter);
static int smsc47m1_detach_client(struct i2c_client *client);
static int smsc47m1_read_value(struct i2c_client *client, u8 reg);
@@ -140,9 +129,7 @@
static struct i2c_driver smsc47m1_driver = {
.owner = THIS_MODULE,
.name = "smsc47m1",
- .id = I2C_DRIVERID_SMSC47M1,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = smsc47m1_attach_adapter,
+ .attach_adapter = smsc47m1_detect,
.detach_client = smsc47m1_detach_client,
};
@@ -358,14 +345,7 @@
static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
-static int smsc47m1_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_detect(adapter, &addr_data, smsc47m1_detect);
-}
-
-static int smsc47m1_find(int *address)
+static int smsc47m1_find(unsigned short *addr)
{
u8 val;
@@ -392,10 +372,10 @@
}
superio_select();
- *address = (superio_inb(SUPERIO_REG_BASE) << 8)
- | superio_inb(SUPERIO_REG_BASE + 1);
+ *addr = (superio_inb(SUPERIO_REG_BASE) << 8)
+ | superio_inb(SUPERIO_REG_BASE + 1);
val = superio_inb(SUPERIO_REG_ACT);
- if (*address == 0 || (val & 0x01) == 0) {
+ if (*addr == 0 || (val & 0x01) == 0) {
printk(KERN_INFO "smsc47m1: Device is disabled, will not use\n");
superio_exit();
return -ENODEV;
@@ -405,17 +385,13 @@
return 0;
}
-static int smsc47m1_detect(struct i2c_adapter *adapter, int address, int kind)
+static int smsc47m1_detect(struct i2c_adapter *adapter)
{
struct i2c_client *new_client;
struct smsc47m1_data *data;
int err = 0;
int fan1, fan2, pwm1, pwm2;
- if (!i2c_is_isa_adapter(adapter)) {
- return 0;
- }
-
if (!request_region(address, SMSC_EXTENT, smsc47m1_driver.name)) {
dev_err(&adapter->dev, "Region 0x%x already in use!\n", address);
return -EBUSY;
@@ -589,7 +565,7 @@
static int __init sm_smsc47m1_init(void)
{
- if (smsc47m1_find(normal_isa)) {
+ if (smsc47m1_find(&address)) {
return -ENODEV;
}