mirror of
https://github.com/torvalds/linux
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ad04d5c387
Summary of changes:
- fixes:
o legacy I/O region size is 64 bytes, not 8 bytes
- general cleanup:
o removed code for the unsupported I2C block data, block data,
proc call and block proc call transfer modes
o removed detail warnings about unsupported modes that are
covered in a general warning (unsupported transaction...)
anyway
o removed necessity of a definition of struct i2c_adapter
o moved definition of struct i2c_algorithm, making forward
declarations of nforce2_access and nforce2_func unnecessary
- minor changes:
o in the description mention the nForce 5xx chipsets
o changes my e-mail address in MODULE_AUTHOR
Theses cleanups shrink the driver binary size from 4.0 kB to 2.7 kB
on i386.
Signed-off-by: Hans-Frieder Vogt <hfvogt@gmx.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
Kernel driver i2c-nforce2
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Supported adapters:
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* nForce2 MCP 10de:0064
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* nForce2 Ultra 400 MCP 10de:0084
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* nForce3 Pro150 MCP 10de:00D4
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* nForce3 250Gb MCP 10de:00E4
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* nForce4 MCP 10de:0052
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* nForce4 MCP-04 10de:0034
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* nForce4 MCP51 10de:0264
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* nForce4 MCP55 10de:0368
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Datasheet: not publicly available, but seems to be similar to the
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AMD-8111 SMBus 2.0 adapter.
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Authors:
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Hans-Frieder Vogt <hfvogt@gmx.net>,
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Thomas Leibold <thomas@plx.com>,
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Patrick Dreker <patrick@dreker.de>
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Description
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-----------
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i2c-nforce2 is a driver for the SMBuses included in the nVidia nForce2 MCP.
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If your 'lspci -v' listing shows something like the following,
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00:01.1 SMBus: nVidia Corporation: Unknown device 0064 (rev a2)
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Subsystem: Asustek Computer, Inc.: Unknown device 0c11
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Flags: 66Mhz, fast devsel, IRQ 5
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I/O ports at c000 [size=32]
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Capabilities: <available only to root>
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then this driver should support the SMBuses of your motherboard.
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Notes
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-----
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The SMBus adapter in the nForce2 chipset seems to be very similar to the
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SMBus 2.0 adapter in the AMD-8111 south bridge. However, I could only get
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the driver to work with direct I/O access, which is different to the EC
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interface of the AMD-8111. Tested on Asus A7N8X. The ACPI DSDT table of the
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Asus A7N8X lists two SMBuses, both of which are supported by this driver.
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