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    SubjectRe: [PATCH 3/3] cyber2000fb: add I2C support
    On Sat, Jul 31, 2010 at 10:55:49PM +0200, Ondrej Zary wrote:
    > Add I2C support for the DDC bus to cyber2000fb driver. This is only bus
    > support, driver does not use EDID.
    > Tested on two different CyberPro 2000 cards with i2cdetect and decode-edid.

    I'm debating a bit about this.

    One thing I'm concerned about is switching the DCLK registers to DCC
    mode without any protection against mode changes co-inciding with
    I2C activity. On a SMP machine, it's possible for both to happen

    Secondly, please name these I2C bits with 'ddc' in the name - the
    CyberPro appear to have more than one I2C bus on them (or can have)
    such as for driving SAA7111 video decoders.

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      Last update: 2010-07-31 23:45    [W:0.019 / U:2.228 seconds]
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