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authorJean Delvare <khali@linux-fr.org>2007-02-13 22:09:02 +0100
committerJean Delvare <khali@arrakis.delvare>2007-02-13 22:09:02 +0100
commitab6a6ed271c757b429ddc68f5b93a41f9592ab8b (patch)
treeadd85be6a7898f4288f3cb61b31aa5893b663a47
parent9ace555d7d87c55ceab6999be444c9a17e0e79b4 (diff)
i2c-viapro: Add support for the VIA CX700 south bridge
We do not have any documentation for the CX700, but it was reported to work fine. Thanks to Claas Langbehn for testing. Signed-off-by: Jean Delvare <khali@linux-fr.org>
-rw-r--r--Documentation/i2c/busses/i2c-viapro7
-rw-r--r--drivers/i2c/busses/Kconfig5
-rw-r--r--drivers/i2c/busses/i2c-viapro.c6
3 files changed, 15 insertions, 3 deletions
diff --git a/Documentation/i2c/busses/i2c-viapro b/Documentation/i2c/busses/i2c-viapro
index 25680346e0a..775f489e86f 100644
--- a/Documentation/i2c/busses/i2c-viapro
+++ b/Documentation/i2c/busses/i2c-viapro
@@ -13,6 +13,9 @@ Supported adapters:
* VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8251
Datasheet: available on request and under NDA from VIA
+ * VIA Technologies, Inc. CX700
+ Datasheet: available on request and under NDA from VIA
+
Authors:
Kyösti Mälkki <kmalkki@cc.hut.fi>,
Mark D. Studebaker <mdsxyz123@yahoo.com>,
@@ -44,6 +47,7 @@ Your lspci -n listing must show one of these :
device 1106:3227 (VT8237R)
device 1106:3337 (VT8237A)
device 1106:3287 (VT8251)
+ device 1106:8324 (CX700)
If none of these show up, you should look in the BIOS for settings like
enable ACPI / SMBus or even USB.
@@ -51,3 +55,6 @@ enable ACPI / SMBus or even USB.
Except for the oldest chips (VT82C596A/B, VT82C686A and most probably
VT8231), this driver supports I2C block transactions. Such transactions
are mainly useful to read from and write to EEPROMs.
+
+The CX700 additionally appears to support SMBus PEC, although this driver
+doesn't implement it yet.
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index f2894dec51a..25d52e0eec2 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -500,11 +500,11 @@ config I2C_VIA
will be called i2c-via.
config I2C_VIAPRO
- tristate "VIA 82C596/82C686/82xx"
+ tristate "VIA VT82C596/82C686/82xx and CX700"
depends on I2C && PCI
help
If you say yes to this option, support will be included for the VIA
- 82C596/82C686/82xx I2C interfaces. Specifically, the following
+ VT82C596 and later SMBus interface. Specifically, the following
chipsets are supported:
VT82C596A/B
VT82C686A/B
@@ -513,6 +513,7 @@ config I2C_VIAPRO
VT8235
VT8237R/A
VT8251
+ CX700
This driver can also be built as a module. If so, the module
will be called i2c-viapro.
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 43a081f1655..03c5fc86854 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -4,7 +4,7 @@
Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl>,
Philip Edelbrock <phil@netroedge.com>, Kyösti Mälkki <kmalkki@cc.hut.fi>,
Mark D. Studebaker <mdsxyz123@yahoo.com>
- Copyright (C) 2005 Jean Delvare <khali@linux-fr.org>
+ Copyright (C) 2005 - 2007 Jean Delvare <khali@linux-fr.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -36,6 +36,7 @@
VT8237R 0x3227 yes
VT8237A 0x3337 yes
VT8251 0x3287 yes
+ CX700 0x8324 yes
Note: we assume there can only be one device, with one SMBus interface.
*/
@@ -384,6 +385,7 @@ found:
dev_dbg(&pdev->dev, "VT596_smba = 0x%X\n", vt596_smba);
switch (pdev->device) {
+ case PCI_DEVICE_ID_VIA_CX700:
case PCI_DEVICE_ID_VIA_8251:
case PCI_DEVICE_ID_VIA_8237:
case PCI_DEVICE_ID_VIA_8237A:
@@ -443,6 +445,8 @@ static struct pci_device_id vt596_ids[] = {
.driver_data = SMBBA1 },
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8251),
.driver_data = SMBBA3 },
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700),
+ .driver_data = SMBBA3 },
{ 0, }
};