[PATCH v2] ASoC: sun4i-i2s: Implement capture support

The i2s driver was only implementing playback for now. Implement capture to make sure that's not a limitation anymore. Signed-off-by: Maxime Ripard --- Changes from v1: - Rebased on top of asoc's topic/sunxi branch sound/soc/sunxi/sun4i-i2s.c | 52

[PATCH v2] ASoC: sun4i-i2s: Implement capture support

The i2s driver was only implementing playback for now. Implement capture to make sure that's not a limitation anymore. Signed-off-by: Maxime Ripard --- Changes from v1: - Rebased on top of asoc's topic/sunxi branch sound/soc/sunxi/sun4i-i2s.c | 52