On Wed, Jun 22, 2016 at 10:10:55AM -0700, Florian Fainelli wrote: > On 06/22/2016 07:51 AM, Mark Brown wrote: > >> +- compatible: > >> + Must be one of : > >> + "brcm,spi-bcm-qspi" > >> + "brcm,spi-brmstb" spi-nor and/or "brcm,spi-brmstb-mspi" unmanaged SPI Master > > What do these compatible strings mean, what are the differences between > > them? The last two sound like configuration of a single IP rather than > > descriptions of hardware. > The Broadcom STB SoCs have two instances of this SPI HW block, one which > is MSPI+BSPI capable and another one which is MSPI only (or that's how > we call them), the difference in the compatible strings tries to denote > and capture that. The point is that we need some words in the binding that explain this so people know when to use them.
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