saa7134: Don't support I2C_M_NOSTART
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Quoted 5 lines · Jean Delvare
I2C adapters should only support
I2C_M_NOSTARTif they really have to (i.e. if they are connected to a broken I2C device which needs this deviation from the standard I2C protocol.) As no media chip driver usesI2C_M_NOSTART, I don't think that the saa7134 driver needs to support it.I2C_M_NOSTART,
There is a chip used on some Osprey bt878 cards, X9221 POT, that does need I2C_M_NOSTART.
I don't know of any saa7134 cards using that part, but the problem with removing this code is that the datasheets for saa713x chips isn't available. In the m920x case, it's all from reverse engineering. Suppose someone does want to support a device that needs this, how will they add support for it at that time if they don't know how the I2C controller works? --
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