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| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-07-26 15:51:16 +0300 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2019-07-31 22:25:27 +0300 |
| commit | ccf988b66d697efcd0ceccc2398e0d9b909cd17c (patch) | |
| tree | 94022b812a20419675e4cac5af1540d75523d31d /Documentation/i2c/busses/i2c-via.rst | |
| parent | 09f4c750a8c7d1fc0b7bb3a7aa1de55de897a375 (diff) | |
| download | linux-ccf988b66d697efcd0ceccc2398e0d9b909cd17c.tar.xz | |
docs: i2c: convert to ReST and add to driver-api bookset
Convert each file at I2C subsystem, renaming them to .rst and
adding to the driver-api book.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/i2c/busses/i2c-via.rst')
| -rw-r--r-- | Documentation/i2c/busses/i2c-via.rst | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/i2c/busses/i2c-via.rst b/Documentation/i2c/busses/i2c-via.rst new file mode 100644 index 000000000000..846aa17d80a2 --- /dev/null +++ b/Documentation/i2c/busses/i2c-via.rst @@ -0,0 +1,40 @@ +===================== +Kernel driver i2c-via +===================== + +Supported adapters: + * VIA Technologies, InC. VT82C586B + Datasheet: Publicly available at the VIA website + +Author: Kyösti Mälkki <kmalkki@cc.hut.fi> + +Description +----------- + +i2c-via is an i2c bus driver for motherboards with VIA chipset. + +The following VIA pci chipsets are supported: + - MVP3, VP3, VP2/97, VPX/97 + - others with South bridge VT82C586B + +Your ``lspci`` listing must show this :: + + Bridge: VIA Technologies, Inc. VT82C586B ACPI (rev 10) + +Problems? +--------- + + Q: + You have VT82C586B on the motherboard, but not in the listing. + + A: + Go to your BIOS setup, section PCI devices or similar. + Turn USB support on, and try again. + + Q: + No error messages, but still i2c doesn't seem to work. + + A: + This can happen. This driver uses the pins VIA recommends in their + datasheets, but there are several ways the motherboard manufacturer + can actually wire the lines. |