On Mon, Jun 02, 2014 at 06:28:37PM +0200, Marcel Ziswiler wrote: > On 06/02/2014 06:11 PM, Stephen Warren wrote: > >>+CONFIG_SPI_SPIDEV=y > >Is this useful with DT? I thought that unlike I2C_CHARDEV, spidev needed > >dummy devices to exist in DT for spidev to work? If so, there's not much > >point adding the option to defconfig, since people can add it when they > >put the dummy devices into DT. > Yes, the Apalis T30 DT I sent actually contains two of them which we call > generic Apalis SPI1 and SPI2 out-of-the-box configured for exactly that. > Without the config enabled though it probably does not make much sense to > include it in the DT so I would consider removing it again. Your DT is broken if it's got a "spidev" node in it, you should be describing the hardware not the Linux implementation of the software. It would be really nice if we had a good way of handling this but we don't yet.
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