spi: atmel: factorize reusable code for SPI controller init
The SPI controller configuration during the init can be reused, for the resume function for example. Let's move this configuration to a separate function. Signed-off-by:Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by:
Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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