msm/dp/dp_audio.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
0004  */
0005
0006 #ifndef _DP_AUDIO_H_
0007 #define _DP_AUDIO_H_
0008
0009 #include <linux/platform_device.h>
0010
0011 #include "dp_panel.h"
0012 #include "dp_catalog.h"
0013 #include <sound/hdmi-codec.h>
0014
0015 /**
0016  * struct dp_audio
0017  * @lane_count: number of lanes configured in current session
0018  * @bw_code: link rate's bandwidth code for current session
0019  */
0020 struct dp_audio {
0021     u32 lane_count;
0022     u32 bw_code;
0023 };
0024
0025 /**
0026  * dp_audio_get()
0027  *
0028  * Creates and instance of dp audio.
0029  *
0030  * @pdev: caller's platform device instance.
0031  * @panel: an instance of dp_panel module.
0032  * @catalog: an instance of dp_catalog module.
0033  *
0034  * Returns the error code in case of failure, otherwize
0035  * an instance of newly created dp_module.
0036  */
0037 struct dp_audio *dp_audio_get(struct platform_device *pdev,
0038             struct dp_panel *panel,
0039             struct dp_catalog *catalog);
0040
0041 /**
0042  * dp_register_audio_driver()
0043  *
0044  * Registers DP device with hdmi_codec interface.
0045  *
0046  * @dev: DP device instance.
0047  * @dp_audio: an instance of dp_audio module.
0048  *
0049  *
0050  * Returns the error code in case of failure, otherwise
0051  * zero on success.
0052  */
0053 int dp_register_audio_driver(struct device *dev,
0054         struct dp_audio *dp_audio);
0055
0056 /**
0057  * dp_audio_put()
0058  *
0059  * Cleans the dp_audio instance.
0060  *
0061  * @dp_audio: an instance of dp_audio.
0062  */
0063 void dp_audio_put(struct dp_audio *dp_audio);
0064
0065 int dp_audio_hw_params(struct device *dev,
0066     void *data,
0067     struct hdmi_codec_daifmt *daifmt,
0068     struct hdmi_codec_params *params);
0069
0070 #endif /* _DP_AUDIO_H_ */
0071
0072