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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-13 16:28:23 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-13 16:28:23 -0800
commit33e563c1190c26b6bf61990c505cdcb5cdbba7e4 (patch)
treee0d7e383d4ea54fd5fe3595bd032dddea60275bf /drivers/i2c/busses/i2c-ali1563.c
parent463020ce428e2f00d4f33a383d6f39c7453a6854 (diff)
parent5dd3ffae0afe355738eca14da1b47284bdae6240 (diff)
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Stop using i2c_adapter.class_dev i2c: Remove the warning on missing adapter device i2c: Declare more i2c_adapter parent devices i2c: PA Semi SMBus driver i2c-amd8111: Proposed cleanups i2c-parport: Add support for One For All remote JP1 interface i2c-viapro: Add support for the VIA CX700 south bridge i2c: Add IDs to adapters i2c: Update the list of bus IDs i2c: Add driver suspend/resume/shutdown support i2c: completion header cleanups i2c-i801: Document the SMBus unhiding quirk i2c-i801: Spelling fix i2c: Fix typo in SMBus Write Word Data description i2c-piix4: Add support for the ATI SB600 i2c-nforce2: Drop unused reference to pci_dev i2c/vt8231: Remove superfluous initialization i2c-ali1563: Fix device initialization i2c-ali1563: Improve the status messages
Diffstat (limited to 'drivers/i2c/busses/i2c-ali1563.c')
-rw-r--r--drivers/i2c/busses/i2c-ali1563.c58
1 files changed, 30 insertions, 28 deletions
diff --git a/drivers/i2c/busses/i2c-ali1563.c b/drivers/i2c/busses/i2c-ali1563.c
index 8e1e3f8e40a..6b68074e518 100644
--- a/drivers/i2c/busses/i2c-ali1563.c
+++ b/drivers/i2c/busses/i2c-ali1563.c
@@ -314,35 +314,11 @@ static u32 ali1563_func(struct i2c_adapter * a)
}
-static void ali1563_enable(struct pci_dev * dev)
-{
- u16 ctrl;
-
- pci_read_config_word(dev,ALI1563_SMBBA,&ctrl);
- ctrl |= 0x7;
- pci_write_config_word(dev,ALI1563_SMBBA,ctrl);
-}
-
static int __devinit ali1563_setup(struct pci_dev * dev)
{
u16 ctrl;
pci_read_config_word(dev,ALI1563_SMBBA,&ctrl);
- printk("ali1563: SMBus control = %04x\n",ctrl);
-
- /* Check if device is even enabled first */
- if (!(ctrl & ALI1563_SMB_IOEN)) {
- dev_warn(&dev->dev,"I/O space not enabled, trying manually\n");
- ali1563_enable(dev);
- }
- if (!(ctrl & ALI1563_SMB_IOEN)) {
- dev_warn(&dev->dev,"I/O space still not enabled, giving up\n");
- goto Err;
- }
- if (!(ctrl & ALI1563_SMB_HOSTEN)) {
- dev_warn(&dev->dev,"Host Controller not enabled\n");
- goto Err;
- }
/* SMB I/O Base in high 12 bits and must be aligned with the
* size of the I/O space. */
@@ -351,11 +327,31 @@ static int __devinit ali1563_setup(struct pci_dev * dev)
dev_warn(&dev->dev,"ali1563_smba Uninitialized\n");
goto Err;
}
+
+ /* Check if device is enabled */
+ if (!(ctrl & ALI1563_SMB_HOSTEN)) {
+ dev_warn(&dev->dev, "Host Controller not enabled\n");
+ goto Err;
+ }
+ if (!(ctrl & ALI1563_SMB_IOEN)) {
+ dev_warn(&dev->dev, "I/O space not enabled, trying manually\n");
+ pci_write_config_word(dev, ALI1563_SMBBA,
+ ctrl | ALI1563_SMB_IOEN);
+ pci_read_config_word(dev, ALI1563_SMBBA, &ctrl);
+ if (!(ctrl & ALI1563_SMB_IOEN)) {
+ dev_err(&dev->dev, "I/O space still not enabled, "
+ "giving up\n");
+ goto Err;
+ }
+ }
+
if (!request_region(ali1563_smba, ALI1563_SMB_IOSIZE,
ali1563_pci_driver.name)) {
- dev_warn(&dev->dev,"Could not allocate I/O space");
+ dev_err(&dev->dev, "Could not allocate I/O space at 0x%04x\n",
+ ali1563_smba);
goto Err;
}
+ dev_info(&dev->dev, "Found ALi1563 SMBus at 0x%04x\n", ali1563_smba);
return 0;
Err:
@@ -374,6 +370,7 @@ static const struct i2c_algorithm ali1563_algorithm = {
static struct i2c_adapter ali1563_adapter = {
.owner = THIS_MODULE,
+ .id = I2C_HW_SMBUS_ALI1563,
.class = I2C_CLASS_HWMON,
.algo = &ali1563_algorithm,
};
@@ -384,13 +381,18 @@ static int __devinit ali1563_probe(struct pci_dev * dev,
int error;
if ((error = ali1563_setup(dev)))
- return error;
+ goto exit;
ali1563_adapter.dev.parent = &dev->dev;
sprintf(ali1563_adapter.name,"SMBus ALi 1563 Adapter @ %04x",
ali1563_smba);
if ((error = i2c_add_adapter(&ali1563_adapter)))
- ali1563_shutdown(dev);
- printk("%s: Returning %d\n",__FUNCTION__,error);
+ goto exit_shutdown;
+ return 0;
+
+exit_shutdown:
+ ali1563_shutdown(dev);
+exit:
+ dev_warn(&dev->dev, "ALi1563 SMBus probe failed (%d)\n", error);
return error;
}