[alsa-devel] [Intel-gfx] [PATCH v2 2/9] drm/i915: Add get_eld audio component

[Daniel Vetter]

On Fri, Dec 04, 2015 at 04:15:24PM +0100, Takashi Iwai wrote:
> diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h
> index 30d89e0da2c6..058d39e8d57f 100644
> --- a/include/drm/i915_component.h
> +++ b/include/drm/i915_component.h
> @@ -38,6 +38,7 @@
>   * @codec_wake_override: Enable/Disable generating the codec wake signal
>   * @get_cdclk_freq: get the Core Display Clock in KHz
>   * @sync_audio_rate: set n/cts based on the sample rate
> + * @get_eld: fill the audio state and ELD bytes for the given port

One more: You seem to still be on an old baseline, with switched to the
new in-line comment layout. That allows you to spec the callback semantics
in much more detail since it allows real paragraphs.
-Daniel

>   */
>  struct i915_audio_component_ops {
>  	struct module *owner;
> @@ -46,6 +47,8 @@ struct i915_audio_component_ops {
>  	void (*codec_wake_override)(struct device *, bool enable);
>  	int (*get_cdclk_freq)(struct device *);
>  	int (*sync_audio_rate)(struct device *, int port, int rate);
> +	int (*get_eld)(struct device *, int port, bool *enabled,
> +		       unsigned char *buf, int max_bytes);
>  };
>  
>  struct i915_audio_component_audio_ops {
> -- 
> 2.6.3
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch