d13e36d7d2
Introduce audio support for Display Port on MSM chipsets. This change integrates DP audio sub-module with the main Display Port platform driver. In addition, this change leverages hdmi_codec_ops to expose the operations to the audio driver. Changes in v2: fix up a compilation issue on drm-next branch Changes in v3: none Changes in v4: none Changes in v5: none Changes in v6: rebase on top of latest patchset of dependency Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
73 lines
1.5 KiB
C
73 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
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*/
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#ifndef _DP_AUDIO_H_
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#define _DP_AUDIO_H_
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#include <linux/platform_device.h>
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#include "dp_panel.h"
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#include "dp_catalog.h"
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#include <sound/hdmi-codec.h>
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/**
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* struct dp_audio
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* @lane_count: number of lanes configured in current session
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* @bw_code: link rate's bandwidth code for current session
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*/
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struct dp_audio {
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u32 lane_count;
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u32 bw_code;
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};
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/**
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* dp_audio_get()
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*
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* Creates and instance of dp audio.
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*
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* @pdev: caller's platform device instance.
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* @panel: an instance of dp_panel module.
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* @catalog: an instance of dp_catalog module.
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*
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* Returns the error code in case of failure, otherwize
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* an instance of newly created dp_module.
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*/
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struct dp_audio *dp_audio_get(struct platform_device *pdev,
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struct dp_panel *panel,
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struct dp_catalog *catalog);
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/**
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* dp_register_audio_driver()
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*
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* Registers DP device with hdmi_codec interface.
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*
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* @dev: DP device instance.
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* @dp_audio: an instance of dp_audio module.
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*
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*
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* Returns the error code in case of failure, otherwise
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* zero on success.
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*/
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int dp_register_audio_driver(struct device *dev,
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struct dp_audio *dp_audio);
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/**
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* dp_audio_put()
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*
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* Cleans the dp_audio instance.
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*
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* @dp_audio: an instance of dp_audio.
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*/
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void dp_audio_put(struct dp_audio *dp_audio);
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int dp_audio_hw_params(struct device *dev,
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void *data,
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struct hdmi_codec_daifmt *daifmt,
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struct hdmi_codec_params *params);
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#endif /* _DP_AUDIO_H_ */
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