aboutsummaryrefslogtreecommitdiff
path: root/drivers/i2c/i2c-core.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/i2c/i2c-core.c')
-rw-r--r--drivers/i2c/i2c-core.c106
1 files changed, 23 insertions, 83 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 9011627d7eb..51ce268998c 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -21,7 +21,6 @@
All SMBus-related things are written by Frodo Looijaard <frodol@dds.nl>
SMBus 2.0 support by Mark Studebaker <mdsxyz123@yahoo.com> */
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -103,7 +102,7 @@ static struct class i2c_adapter_class = {
.release = &i2c_adapter_class_dev_release,
};
-static ssize_t show_adapter_name(struct device *dev, char *buf)
+static ssize_t show_adapter_name(struct device *dev, struct device_attribute *attr, char *buf)
{
struct i2c_adapter *adap = dev_to_i2c_adapter(dev);
return sprintf(buf, "%s\n", adap->name);
@@ -117,7 +116,7 @@ static void i2c_client_release(struct device *dev)
complete(&client->released);
}
-static ssize_t show_client_name(struct device *dev, char *buf)
+static ssize_t show_client_name(struct device *dev, struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
return sprintf(buf, "%s\n", client->name);
@@ -239,7 +238,7 @@ int i2c_del_adapter(struct i2c_adapter *adap)
}
/* detach any active clients. This must be done first, because
- * it can fail; in which case we give upp. */
+ * it can fail; in which case we give up. */
list_for_each_safe(item, _n, &adap->clients) {
client = list_entry(item, struct i2c_client, list);
@@ -612,27 +611,16 @@ int i2c_master_send(struct i2c_client *client,const char *buf ,int count)
struct i2c_adapter *adap=client->adapter;
struct i2c_msg msg;
- if (client->adapter->algo->master_xfer) {
- msg.addr = client->addr;
- msg.flags = client->flags & I2C_M_TEN;
- msg.len = count;
- msg.buf = (char *)buf;
+ msg.addr = client->addr;
+ msg.flags = client->flags & I2C_M_TEN;
+ msg.len = count;
+ msg.buf = (char *)buf;
- dev_dbg(&client->adapter->dev, "master_send: writing %d bytes.\n",
- count);
-
- down(&adap->bus_lock);
- ret = adap->algo->master_xfer(adap,&msg,1);
- up(&adap->bus_lock);
+ ret = i2c_transfer(adap, &msg, 1);
- /* if everything went ok (i.e. 1 msg transmitted), return #bytes
- * transmitted, else error code.
- */
- return (ret == 1 )? count : ret;
- } else {
- dev_err(&client->adapter->dev, "I2C level transfers not supported\n");
- return -ENOSYS;
- }
+ /* If everything went ok (i.e. 1 msg transmitted), return #bytes
+ transmitted, else error code. */
+ return (ret == 1) ? count : ret;
}
int i2c_master_recv(struct i2c_client *client, char *buf ,int count)
@@ -640,31 +628,18 @@ int i2c_master_recv(struct i2c_client *client, char *buf ,int count)
struct i2c_adapter *adap=client->adapter;
struct i2c_msg msg;
int ret;
- if (client->adapter->algo->master_xfer) {
- msg.addr = client->addr;
- msg.flags = client->flags & I2C_M_TEN;
- msg.flags |= I2C_M_RD;
- msg.len = count;
- msg.buf = buf;
-
- dev_dbg(&client->adapter->dev, "master_recv: reading %d bytes.\n",
- count);
-
- down(&adap->bus_lock);
- ret = adap->algo->master_xfer(adap,&msg,1);
- up(&adap->bus_lock);
-
- dev_dbg(&client->adapter->dev, "master_recv: return:%d (count:%d, addr:0x%02x)\n",
- ret, count, client->addr);
-
- /* if everything went ok (i.e. 1 msg transmitted), return #bytes
- * transmitted, else error code.
- */
- return (ret == 1 )? count : ret;
- } else {
- dev_err(&client->adapter->dev, "I2C level transfers not supported\n");
- return -ENOSYS;
- }
+
+ msg.addr = client->addr;
+ msg.flags = client->flags & I2C_M_TEN;
+ msg.flags |= I2C_M_RD;
+ msg.len = count;
+ msg.buf = buf;
+
+ ret = i2c_transfer(adap, &msg, 1);
+
+ /* If everything went ok (i.e. 1 msg transmitted), return #bytes
+ transmitted, else error code. */
+ return (ret == 1) ? count : ret;
}
@@ -742,18 +717,6 @@ int i2c_probe(struct i2c_adapter *adapter,
found = 1;
}
}
- for (i = 0;
- !found && (address_data->ignore_range[i] != I2C_CLIENT_END);
- i += 3) {
- if (((adap_id == address_data->ignore_range[i]) ||
- ((address_data->ignore_range[i]==ANY_I2C_BUS))) &&
- (addr >= address_data->ignore_range[i+1]) &&
- (addr <= address_data->ignore_range[i+2])) {
- dev_dbg(&adapter->dev, "found ignore_range parameter for adapter %d, "
- "addr %04x\n", adap_id,addr);
- found = 1;
- }
- }
if (found)
continue;
@@ -770,17 +733,6 @@ int i2c_probe(struct i2c_adapter *adapter,
}
for (i = 0;
- !found && (address_data->normal_i2c_range[i] != I2C_CLIENT_END);
- i += 2) {
- if ((addr >= address_data->normal_i2c_range[i]) &&
- (addr <= address_data->normal_i2c_range[i+1])) {
- found = 1;
- dev_dbg(&adapter->dev, "found normal i2c_range entry for adapter %d, "
- "addr %04x\n", adap_id,addr);
- }
- }
-
- for (i = 0;
!found && (address_data->probe[i] != I2C_CLIENT_END);
i += 2) {
if (((adap_id == address_data->probe[i]) ||
@@ -791,18 +743,6 @@ int i2c_probe(struct i2c_adapter *adapter,
"addr %04x\n", adap_id,addr);
}
}
- for (i = 0;
- !found && (address_data->probe_range[i] != I2C_CLIENT_END);
- i += 3) {
- if (((adap_id == address_data->probe_range[i]) ||
- (address_data->probe_range[i] == ANY_I2C_BUS)) &&
- (addr >= address_data->probe_range[i+1]) &&
- (addr <= address_data->probe_range[i+2])) {
- found = 1;
- dev_dbg(&adapter->dev, "found probe_range parameter for adapter %d, "
- "addr %04x\n", adap_id,addr);
- }
- }
if (!found)
continue;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 09:51:52 +0000