[PATCH v2 1/2] spi: sun6i: Honor CS setup delay on the first transfer with native CS

[Mark Brown]

On Thu, Apr 23, 2026 at 12:40:34PM -0600, Kevin Mehall wrote:
> I realized this is incorrect. With a GPIO chip select, sun6i_spi_set_cs() is not called,
> thus CS_MANUAL would not be set, and the hardware would then automatically
> assert native CS 0 during the transfer. My testing was with native CS 1 and a second GPIO chip select,
> so I didn't see this because native CS 0 is not used on the Orange Pi Zero 3.

> Therefore, I think the best place to set CS_MANUAL is in sun6i_spi_prepare_message
> as I had in my original patch [1], unless you think it should be duplicated in both places
> or have a better suggestion of where to set it. sun6i_spi_prepare_message() is still called
> before set_cs(), so it still fixes the skipped delay.

That sounds about right, the other option would be
SPI_CONTROLLER_GPIO_SS but I don't think this controller needs it.
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