Re: [PATCH 2/2] spi: spi-qcom-qspi: Add mem_ops to avoid PIO for badly sized reads

[Mark Brown]

On Tue, Jul 25, 2023 at 11:30:30AM -0700, Doug Anderson wrote:

> Note that it's pretty likely someone wouldn't use this SPI controller
> for anything other than SPI flash. While it's theoretically possible,
> the controller is intended for SPI flash (supports dual and quad SPI
> modes) and is only half duplex.

TBH most devices are half duplex so it's not *that* big a restriction,
and dual/quad mode are obviously attractive if you need to transfer
large quantities of data.

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