From: Libin Yang <libin.y...@intel.com>

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.y...@intel.com>
---
 include/drm/i915_component.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h
index c9a8b64..8ad6f1b 100644
--- a/include/drm/i915_component.h
+++ b/include/drm/i915_component.h
@@ -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;
 };
 
-- 
1.9.1

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