On Mon, Nov 04, 2019 at 12:35:24AM +0000, Chris Packham wrote: > I'm working on a platform that has a slightly complicated scheme for > SPI chip-selects using gpios[1]. The spi controller driver in this case > supports the spi-mem operations which appear to bypass the generic > spi_set_cs(). > Would there be any harm in adding calls to spi_set_cs() to spi-mem.c? > Naively spi_mem_access_start() and spi_mem_access_end() seem like > convenient places to start. That's only going to work in cases where the controller translates things into a single SPI operation on the flash which I'm not sure is always going to be the case. We'd need a way to guarantee that the controller is going to do that in order to avoid data corruption issues.
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