Add a driver to support the SPI controller found in Ingenic SoCs.
Co-developed-by: NPaul Cercueil <paul@crapouillou.net>
Signed-off-by: NPaul Cercueil <paul@crapouillou.net>
Signed-off-by: NArtur Rojek <contact@artur-rojek.eu>
Link: https://lore.kernel.org/r/20210830230139.21476-3-contact@artur-rojek.euSigned-off-by: NMark Brown <broonie@kernel.org>