[PATCH] spi: pxa2xx: Set controller->max_transfer_size in dma mode

[Mark Brown]

On Wed, Oct 16, 2019 at 11:30:51PM +0200, Noralf Trønnes wrote:

> As Andy mentioned, ->max_transfer_size is a callback:

> struct spi_controller {
> 	/*
> 	 * on some hardware transfer / message size may be constrained
> 	 * the limit may depend on device transfer settings
> 	 */
> 	size_t (*max_transfer_size)(struct spi_device *spi);

> (I looked at its users and they all return a static or probe time value
> so not sure why it's a callback.)

Huh, I wonder why we did that...  I can't find any clear record, and
like you say nothing is using it so we should probably fix it - however
that's best done separately to this :/  Sorry for the confusion, I
didn't register what Andy was saying as being pointing out the current
state of the code.
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