Re: [PATCH 03/10] spi: Add flag for no TX after a RX in the same Chip Select

[Lucas tanure]

On 9/8/21 1:37 PM, Mark Brown wrote:
> On Wed, Sep 08, 2021 at 12:34:44PM +0100, Lucas Tanure wrote:
> > Some controllers can't write to the bus after a read without
> > releasing the chip select, so add flag and a check in spi core
>
> Nothing you've added ever reads this flag and I'm not sure what anything
> would be able to constructively do with it so why add the flag?  I don't
> understand what the use case is.
__spi_validate checks this flag and makes sure the message can be 
received by the controller.
__spi_validate can't fix the message, so it only rejects the message.