summaryrefslogtreecommitdiffstats
path: root/drivers/i2c/busses/i2c-nforce2.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/i2c/busses/i2c-nforce2.c')
-rw-r--r--drivers/i2c/busses/i2c-nforce2.c152
1 files changed, 76 insertions, 76 deletions
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index adac8542771d..ac88f4000cc2 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -60,7 +60,7 @@
#include <linux/io.h>
MODULE_LICENSE("GPL");
-MODULE_AUTHOR ("Hans-Frieder Vogt <hfvogt@gmx.net>");
+MODULE_AUTHOR("Hans-Frieder Vogt <hfvogt@gmx.net>");
MODULE_DESCRIPTION("nForce2/3/4/5xx SMBus driver");
@@ -188,9 +188,9 @@ static int nforce2_check_status(struct i2c_adapter *adap)
}
/* Return negative errno on error */
-static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
+static s32 nforce2_access(struct i2c_adapter *adap, u16 addr,
unsigned short flags, char read_write,
- u8 command, int size, union i2c_smbus_data * data)
+ u8 command, int size, union i2c_smbus_data *data)
{
struct nforce2_smbus *smbus = adap->algo_data;
unsigned char protocol, pec;
@@ -202,56 +202,54 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
pec = (flags & I2C_CLIENT_PEC) ? NVIDIA_SMB_PRTCL_PEC : 0;
switch (size) {
+ case I2C_SMBUS_QUICK:
+ protocol |= NVIDIA_SMB_PRTCL_QUICK;
+ read_write = I2C_SMBUS_WRITE;
+ break;
- case I2C_SMBUS_QUICK:
- protocol |= NVIDIA_SMB_PRTCL_QUICK;
- read_write = I2C_SMBUS_WRITE;
- break;
-
- case I2C_SMBUS_BYTE:
- if (read_write == I2C_SMBUS_WRITE)
- outb_p(command, NVIDIA_SMB_CMD);
- protocol |= NVIDIA_SMB_PRTCL_BYTE;
- break;
-
- case I2C_SMBUS_BYTE_DATA:
- outb_p(command, NVIDIA_SMB_CMD);
- if (read_write == I2C_SMBUS_WRITE)
- outb_p(data->byte, NVIDIA_SMB_DATA);
- protocol |= NVIDIA_SMB_PRTCL_BYTE_DATA;
- break;
-
- case I2C_SMBUS_WORD_DATA:
+ case I2C_SMBUS_BYTE:
+ if (read_write == I2C_SMBUS_WRITE)
outb_p(command, NVIDIA_SMB_CMD);
- if (read_write == I2C_SMBUS_WRITE) {
- outb_p(data->word, NVIDIA_SMB_DATA);
- outb_p(data->word >> 8, NVIDIA_SMB_DATA+1);
- }
- protocol |= NVIDIA_SMB_PRTCL_WORD_DATA | pec;
- break;
-
- case I2C_SMBUS_BLOCK_DATA:
- outb_p(command, NVIDIA_SMB_CMD);
- if (read_write == I2C_SMBUS_WRITE) {
- len = data->block[0];
- if ((len == 0) || (len > I2C_SMBUS_BLOCK_MAX)) {
- dev_err(&adap->dev,
- "Transaction failed "
- "(requested block size: %d)\n",
- len);
- return -EINVAL;
- }
- outb_p(len, NVIDIA_SMB_BCNT);
- for (i = 0; i < I2C_SMBUS_BLOCK_MAX; i++)
- outb_p(data->block[i + 1],
- NVIDIA_SMB_DATA+i);
+ protocol |= NVIDIA_SMB_PRTCL_BYTE;
+ break;
+
+ case I2C_SMBUS_BYTE_DATA:
+ outb_p(command, NVIDIA_SMB_CMD);
+ if (read_write == I2C_SMBUS_WRITE)
+ outb_p(data->byte, NVIDIA_SMB_DATA);
+ protocol |= NVIDIA_SMB_PRTCL_BYTE_DATA;
+ break;
+
+ case I2C_SMBUS_WORD_DATA:
+ outb_p(command, NVIDIA_SMB_CMD);
+ if (read_write == I2C_SMBUS_WRITE) {
+ outb_p(data->word, NVIDIA_SMB_DATA);
+ outb_p(data->word >> 8, NVIDIA_SMB_DATA + 1);
+ }
+ protocol |= NVIDIA_SMB_PRTCL_WORD_DATA | pec;
+ break;
+
+ case I2C_SMBUS_BLOCK_DATA:
+ outb_p(command, NVIDIA_SMB_CMD);
+ if (read_write == I2C_SMBUS_WRITE) {
+ len = data->block[0];
+ if ((len == 0) || (len > I2C_SMBUS_BLOCK_MAX)) {
+ dev_err(&adap->dev,
+ "Transaction failed (requested block size: %d)\n",
+ len);
+ return -EINVAL;
}
- protocol |= NVIDIA_SMB_PRTCL_BLOCK_DATA | pec;
- break;
+ outb_p(len, NVIDIA_SMB_BCNT);
+ for (i = 0; i < I2C_SMBUS_BLOCK_MAX; i++)
+ outb_p(data->block[i + 1],
+ NVIDIA_SMB_DATA + i);
+ }
+ protocol |= NVIDIA_SMB_PRTCL_BLOCK_DATA | pec;
+ break;
- default:
- dev_err(&adap->dev, "Unsupported transaction %d\n", size);
- return -EOPNOTSUPP;
+ default:
+ dev_err(&adap->dev, "Unsupported transaction %d\n", size);
+ return -EOPNOTSUPP;
}
outb_p((addr & 0x7f) << 1, NVIDIA_SMB_ADDR);
@@ -265,28 +263,28 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
return 0;
switch (size) {
-
- case I2C_SMBUS_BYTE:
- case I2C_SMBUS_BYTE_DATA:
- data->byte = inb_p(NVIDIA_SMB_DATA);
- break;
-
- case I2C_SMBUS_WORD_DATA:
- data->word = inb_p(NVIDIA_SMB_DATA) | (inb_p(NVIDIA_SMB_DATA+1) << 8);
- break;
-
- case I2C_SMBUS_BLOCK_DATA:
- len = inb_p(NVIDIA_SMB_BCNT);
- if ((len <= 0) || (len > I2C_SMBUS_BLOCK_MAX)) {
- dev_err(&adap->dev, "Transaction failed "
- "(received block size: 0x%02x)\n",
- len);
- return -EPROTO;
- }
- for (i = 0; i < len; i++)
- data->block[i+1] = inb_p(NVIDIA_SMB_DATA + i);
- data->block[0] = len;
- break;
+ case I2C_SMBUS_BYTE:
+ case I2C_SMBUS_BYTE_DATA:
+ data->byte = inb_p(NVIDIA_SMB_DATA);
+ break;
+
+ case I2C_SMBUS_WORD_DATA:
+ data->word = inb_p(NVIDIA_SMB_DATA) |
+ (inb_p(NVIDIA_SMB_DATA + 1) << 8);
+ break;
+
+ case I2C_SMBUS_BLOCK_DATA:
+ len = inb_p(NVIDIA_SMB_BCNT);
+ if ((len <= 0) || (len > I2C_SMBUS_BLOCK_MAX)) {
+ dev_err(&adap->dev,
+ "Transaction failed (received block size: 0x%02x)\n",
+ len);
+ return -EPROTO;
+ }
+ for (i = 0; i < len; i++)
+ data->block[i + 1] = inb_p(NVIDIA_SMB_DATA + i);
+ data->block[0] = len;
+ break;
}
return 0;
@@ -299,7 +297,7 @@ static u32 nforce2_func(struct i2c_adapter *adapter)
return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
I2C_FUNC_SMBUS_PEC |
- (((struct nforce2_smbus*)adapter->algo_data)->blockops ?
+ (((struct nforce2_smbus *)adapter->algo_data)->blockops ?
I2C_FUNC_SMBUS_BLOCK_DATA : 0);
}
@@ -327,7 +325,7 @@ static DEFINE_PCI_DEVICE_TABLE(nforce2_ids) = {
{ 0 }
};
-MODULE_DEVICE_TABLE (pci, nforce2_ids);
+MODULE_DEVICE_TABLE(pci, nforce2_ids);
static int nforce2_probe_smb(struct pci_dev *dev, int bar, int alt_reg,
@@ -377,7 +375,8 @@ static int nforce2_probe_smb(struct pci_dev *dev, int bar, int alt_reg,
release_region(smbus->base, smbus->size);
return error;
}
- dev_info(&smbus->adapter.dev, "nForce2 SMBus adapter at %#x\n", smbus->base);
+ dev_info(&smbus->adapter.dev, "nForce2 SMBus adapter at %#x\n",
+ smbus->base);
return 0;
}
@@ -388,11 +387,12 @@ static int nforce2_probe(struct pci_dev *dev, const struct pci_device_id *id)
int res1, res2;
/* we support 2 SMBus adapters */
- if (!(smbuses = kzalloc(2*sizeof(struct nforce2_smbus), GFP_KERNEL)))
+ smbuses = kzalloc(2 * sizeof(struct nforce2_smbus), GFP_KERNEL);
+ if (!smbuses)
return -ENOMEM;
pci_set_drvdata(dev, smbuses);
- switch(dev->device) {
+ switch (dev->device) {
case PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS:
case PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SMBUS:
case PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SMBUS:
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 08:07:24 +0100