75 lines · c
1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.4 */5 6#ifndef _DP_AUDIO_H_7#define _DP_AUDIO_H_8 9#include <linux/platform_device.h>10 11#include "dp_panel.h"12#include "dp_catalog.h"13#include <sound/hdmi-codec.h>14 15/**16 * struct dp_audio17 * @lane_count: number of lanes configured in current session18 * @bw_code: link rate's bandwidth code for current session19 */20struct dp_audio {21 u32 lane_count;22 u32 bw_code;23};24 25/**26 * dp_audio_get()27 *28 * Creates and instance of dp audio.29 *30 * @pdev: caller's platform device instance.31 * @panel: an instance of dp_panel module.32 * @catalog: an instance of dp_catalog module.33 *34 * Returns the error code in case of failure, otherwize35 * an instance of newly created dp_module.36 */37struct dp_audio *dp_audio_get(struct platform_device *pdev,38 struct dp_panel *panel,39 struct dp_catalog *catalog);40 41/**42 * dp_register_audio_driver()43 *44 * Registers DP device with hdmi_codec interface.45 *46 * @dev: DP device instance.47 * @dp_audio: an instance of dp_audio module.48 *49 *50 * Returns the error code in case of failure, otherwise51 * zero on success.52 */53int dp_register_audio_driver(struct device *dev,54 struct dp_audio *dp_audio);55 56void dp_unregister_audio_driver(struct device *dev, struct dp_audio *dp_audio);57 58/**59 * dp_audio_put()60 *61 * Cleans the dp_audio instance.62 *63 * @dp_audio: an instance of dp_audio.64 */65void dp_audio_put(struct dp_audio *dp_audio);66 67int dp_audio_hw_params(struct device *dev,68 void *data,69 struct hdmi_codec_daifmt *daifmt,70 struct hdmi_codec_params *params);71 72#endif /* _DP_AUDIO_H_ */73 74 75