This patch adds platform data to the AC97C platform device. This will
let the board add a GPIO line which is connected to the external codecs
reset line.
The platform data, ac97c_platform_data, must also contain the DMA
controller ID, RX channel ID and TX channel ID.
Tested with Wolfson WM9712 and AP7000.
Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
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