X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fi2c%2Fbusses%2Fi2c-viapro.c;h=c872c2849a0bf2fa25c1353c7ab43b84e726206e;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=396b5ebf117f6a43c217a588a9b2b8fe11a03ac6;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git

diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 396b5ebf1..c872c2849 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -45,6 +45,8 @@
 #include <linux/init.h>
 #include <asm/io.h>
 
+static struct pci_dev *vt596_pdev;
+
 #define SMBBA1	   	 0x90
 #define SMBBA2     	 0x80
 #define SMBBA3     	 0xD0
@@ -231,8 +233,8 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
 			len = data->block[0];
 			if (len < 0)
 				len = 0;
-			if (len > 32)
-				len = 32;
+			if (len > I2C_SMBUS_BLOCK_MAX)
+				len = I2C_SMBUS_BLOCK_MAX;
 			outb_p(len, SMBHSTDAT0);
 			i = inb_p(SMBHSTCNT);	/* Reset SMBBLKDAT */
 			for (i = 1; i <= len; i++)
@@ -266,6 +268,8 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
 		break;
 	case VT596_BLOCK_DATA:
 		data->block[0] = inb_p(SMBHSTDAT0);
+		if (data->block[0] > I2C_SMBUS_BLOCK_MAX)
+			data->block[0] = I2C_SMBUS_BLOCK_MAX;
 		i = inb_p(SMBHSTCNT);	/* Reset SMBBLKDAT */
 		for (i = 1; i <= data->block[0]; i++)
 			data->block[i] = inb_p(SMBBLKDAT);
@@ -381,95 +385,66 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
 	snprintf(vt596_adapter.name, I2C_NAME_SIZE,
 			"SMBus Via Pro adapter at %04x", vt596_smba);
 	
-	return i2c_add_adapter(&vt596_adapter);
+	vt596_pdev = pci_dev_get(pdev);
+	if (i2c_add_adapter(&vt596_adapter)) {
+		pci_dev_put(vt596_pdev);
+		vt596_pdev = NULL;
+	}
+
+	/* Always return failure here.  This is to allow other drivers to bind
+	 * to this pci device.  We don't really want to have control over the
+	 * pci device, we only wanted to read as few register values from it.
+	 */
+	return -ENODEV;
 
  release_region:
 	release_region(vt596_smba, 8);
 	return error;
 }
 
-static void __devexit vt596_remove(struct pci_dev *pdev)
-{
-	i2c_del_adapter(&vt596_adapter);
-	release_region(vt596_smba, 8);
-}
-
 static struct pci_device_id vt596_ids[] = {
-	{
-		.vendor		= PCI_VENDOR_ID_VIA,
-		.device 	= PCI_DEVICE_ID_VIA_82C596_3,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-		.driver_data	= SMBBA1,
-	},
-	{
-		.vendor		= PCI_VENDOR_ID_VIA,
-		.device		= PCI_DEVICE_ID_VIA_82C596B_3,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-		.driver_data	= SMBBA1,
-	},
-	{
-		.vendor		= PCI_VENDOR_ID_VIA,
-		.device 	= PCI_DEVICE_ID_VIA_82C686_4,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-		.driver_data	= SMBBA1,
-	},
-	{
-		.vendor		= PCI_VENDOR_ID_VIA,
-		.device 	= PCI_DEVICE_ID_VIA_8233_0,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-		.driver_data	= SMBBA3
-	},
-	{
-		.vendor		= PCI_VENDOR_ID_VIA,
-		.device 	= PCI_DEVICE_ID_VIA_8233A,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-		.driver_data	= SMBBA3,
-	},
-	{
-		.vendor		= PCI_VENDOR_ID_VIA,
-		.device 	= PCI_DEVICE_ID_VIA_8235,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-		.driver_data	= SMBBA3
-	},
-	{
-		.vendor		= PCI_VENDOR_ID_VIA,
-		.device 	= PCI_DEVICE_ID_VIA_8237,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-		.driver_data	= SMBBA3
-	},
-	{
-		.vendor		= PCI_VENDOR_ID_VIA,
-		.device 	= PCI_DEVICE_ID_VIA_8231_4,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-		.driver_data	= SMBBA1,
-	},
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596_3),
+	  .driver_data = SMBBA1 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596B_3),
+	  .driver_data = SMBBA1 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4),
+	  .driver_data = SMBBA1 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0),
+	  .driver_data = SMBBA3 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A),
+	  .driver_data = SMBBA3 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235),
+	  .driver_data = SMBBA3 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237),
+	  .driver_data = SMBBA3 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4),
+	  .driver_data = SMBBA1 },
 	{ 0, }
 };
 
+MODULE_DEVICE_TABLE (pci, vt596_ids);
+
 static struct pci_driver vt596_driver = {
 	.name		= "vt596_smbus",
 	.id_table	= vt596_ids,
 	.probe		= vt596_probe,
-	.remove		= __devexit_p(vt596_remove),
 };
 
 static int __init i2c_vt596_init(void)
 {
-	return pci_module_init(&vt596_driver);
+	return pci_register_driver(&vt596_driver);
 }
 
 
 static void __exit i2c_vt596_exit(void)
 {
 	pci_unregister_driver(&vt596_driver);
+	if (vt596_pdev != NULL) {
+		i2c_del_adapter(&vt596_adapter);
+		release_region(vt596_smba, 8);
+		pci_dev_put(vt596_pdev);
+		vt596_pdev = NULL;
+	}
 }
 
 MODULE_AUTHOR(