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drm/i915: Add audio sync_audio_rate callback

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Add the sync_audio_rate callback.

With the callback, audio driver can trigger
i915 driver to set the proper N/CTS or N/M
based on different sample rates.

Signed-off-by: Libin Yang <libin.yang@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Libin Yang 2015-09-02 14:11:38 +08:00 committed by Takashi Iwai
parent 1f93e4a96c
commit 5334240c30
1 changed files with 7 additions and 0 deletions
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7
include/drm/i915_component.h
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@ -33,6 +33,13 @@ struct i915_audio_component {
void (*put_power)(struct device *);
void (*codec_wake_override)(struct device *, bool enable);
int (*get_cdclk_freq)(struct device *);
/**
* @sync_audio_rate: set n/cts based on the sample rate
*
* Called from audio driver. After audio driver sets the
* sample rate, it will call this function to set n/cts
*/
int (*sync_audio_rate)(struct device *, int port, int rate);
} *ops;
const struct i915_audio_component_audio_ops {