On 19/05/14 19:04, Tony Lindgren wrote: > In many cases however we do have multiple compatible strings that > describe how the device is wired. See drivers/tty/serial/of_serial.c > for example. It has "ns16550" but then it also has additional > "nvidia,tegra20-uart", "nxp,lpc3220-uart" and "ibm,qpace-nwp-serial". All those sound like SoC components. In that case it sounds fine to have the device compatible contain the SoC name. We're talking here about external, detachable devices. >>> Not use what you're after with the SPI example though, but sounds >>> like that's something different. >> >> I think Sebastien's example is just like the issue here. > > Hmm is there some existing example in the kernel like that? No, Sebastien's example was just a hypothetical case. Here, using your way of having SoC specific data in the .dts, we would have "sharp,ls037v7dw01-omap-dss", and in Sebastien's example with a touch sensor we'd have, say, "synaptics,xyz123-omap-spi". Tomi
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