diff options
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_audio.h')
-rw-r--r-- | drivers/gpu/drm/msm/dp/dp_audio.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_audio.h b/drivers/gpu/drm/msm/dp/dp_audio.h new file mode 100644 index 0000000000..4ab78880af --- /dev/null +++ b/drivers/gpu/drm/msm/dp/dp_audio.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved. + */ + +#ifndef _DP_AUDIO_H_ +#define _DP_AUDIO_H_ + +#include <linux/platform_device.h> + +#include "dp_panel.h" +#include "dp_catalog.h" +#include <sound/hdmi-codec.h> + +/** + * struct dp_audio + * @lane_count: number of lanes configured in current session + * @bw_code: link rate's bandwidth code for current session + */ +struct dp_audio { + u32 lane_count; + u32 bw_code; +}; + +/** + * dp_audio_get() + * + * Creates and instance of dp audio. + * + * @pdev: caller's platform device instance. + * @panel: an instance of dp_panel module. + * @catalog: an instance of dp_catalog module. + * + * Returns the error code in case of failure, otherwize + * an instance of newly created dp_module. + */ +struct dp_audio *dp_audio_get(struct platform_device *pdev, + struct dp_panel *panel, + struct dp_catalog *catalog); + +/** + * dp_register_audio_driver() + * + * Registers DP device with hdmi_codec interface. + * + * @dev: DP device instance. + * @dp_audio: an instance of dp_audio module. + * + * + * Returns the error code in case of failure, otherwise + * zero on success. + */ +int dp_register_audio_driver(struct device *dev, + struct dp_audio *dp_audio); + +void dp_unregister_audio_driver(struct device *dev, struct dp_audio *dp_audio); + +/** + * dp_audio_put() + * + * Cleans the dp_audio instance. + * + * @dp_audio: an instance of dp_audio. + */ +void dp_audio_put(struct dp_audio *dp_audio); + +int dp_audio_hw_params(struct device *dev, + void *data, + struct hdmi_codec_daifmt *daifmt, + struct hdmi_codec_params *params); + +#endif /* _DP_AUDIO_H_ */ + + |