Add more information to I2S platform_devices in order
to prepare them for new controller driver.
Also, discard duplicated gpio-cfg.
Signed-off-by: NJassi Brar <jassi.brar@samsung.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>