[PATCH] i2c-piix4: Add ATI IXP200/300/400 support
This patch adds the ATI IXP southbridges support to i2c-piix4,
as it turned out those chips are compatible with it.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/Documentation/i2c/busses/i2c-piix4 b/Documentation/i2c/busses/i2c-piix4
index a1c8f58..6e6c905 100644
--- a/Documentation/i2c/busses/i2c-piix4
+++ b/Documentation/i2c/busses/i2c-piix4
@@ -6,6 +6,8 @@
Datasheet: Publicly available at the Intel website
* ServerWorks OSB4, CSB5, CSB6 and HT-1000 southbridges
Datasheet: Only available via NDA from ServerWorks
+ * ATI IXP southbridges IXP200, IXP300, IXP400
+ Datasheet: Not publicly available
* Standard Microsystems (SMSC) SLC90E66 (Victory66) southbridge
Datasheet: Publicly available at the SMSC website http://www.smsc.com
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index d6d4494..e3450d1 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -163,7 +163,7 @@
I2C bus.
config I2C_PIIX4
- tristate "Intel PIIX4"
+ tristate "Intel PIIX4 and compatible (ATI/Serverworks/Broadcom/SMSC)"
depends on I2C && PCI
help
If you say yes to this option, support will be included for the Intel
@@ -172,6 +172,9 @@
of Broadcom):
Intel PIIX4
Intel 440MX
+ ATI IXP200
+ ATI IXP300
+ ATI IXP400
Serverworks OSB4
Serverworks CSB5
Serverworks CSB6
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index d9c7c00..5f06e81 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -413,6 +413,12 @@
static struct pci_device_id piix4_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3),
.driver_data = 3 },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_SMBUS),
+ .driver_data = 0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_SMBUS),
+ .driver_data = 0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS),
+ .driver_data = 0 },
{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4),
.driver_data = 0 },
{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5),
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index bcfe9d4..489af9d 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -352,8 +352,11 @@
#define PCI_DEVICE_ID_ATI_RS480 0x5950
/* ATI IXP Chipset */
#define PCI_DEVICE_ID_ATI_IXP200_IDE 0x4349
+#define PCI_DEVICE_ID_ATI_IXP200_SMBUS 0x4353
+#define PCI_DEVICE_ID_ATI_IXP300_SMBUS 0x4363
#define PCI_DEVICE_ID_ATI_IXP300_IDE 0x4369
#define PCI_DEVICE_ID_ATI_IXP300_SATA 0x436e
+#define PCI_DEVICE_ID_ATI_IXP400_SMBUS 0x4372
#define PCI_DEVICE_ID_ATI_IXP400_IDE 0x4376
#define PCI_DEVICE_ID_ATI_IXP400_SATA 0x4379
#define PCI_DEVICE_ID_ATI_IXP400_SATA2 0x437a