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c5a120b3f0
Add a driver which supports transmitting digital sound to an audio codec. This uses fixed parameters as a device-tree binding is not currently defined. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
30 lines
705 B
C
30 lines
705 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2018 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#ifndef __TEGRA_I2S_PRIV_H
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#define __TEGRA_I2S_PRIV_H
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enum {
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/* Set i2s device (in buf) */
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AHUB_MISCOP_SET_I2S,
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};
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/*
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* tegra_i2s_set_cif_tx_ctrl() - Set the I2C port to send to
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*
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* The CIF is not really part of I2S -- it's for Audio Hub to control
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* the interface between I2S and Audio Hub. However since it's put in
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* the I2S registers domain instead of the Audio Hub, we need to export
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* this as a function.
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*
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* @dev: I2S device
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* @value: Value to write to CIF_TX_CTRL register
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* @return 0
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*/
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int tegra_i2s_set_cif_tx_ctrl(struct udevice *dev, u32 value);
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#endif
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