[Intel-gfx] [PATCH 2/4] i915: add support for GPU side of MST audio

[Chris Wilson]

On Wed, Jun 17, 2015 at 02:01:57PM +1000, Dave Airlie wrote:
> From: Dave Airlie <airlied at redhat.com>
> 
> This just adds enables for the codecs and debugfs
> support for mst connectors to print the audio info.
> 
> This relies on patches to the audio code to do anything
> more useful.
> 
> Signed-off-by: Dave Airlie <airlied at redhat.com>
> ---
> @@ -231,6 +231,7 @@ static void hsw_audio_codec_enable(struct drm_connector *connector,
>  	/* Reset ELD write address */
>  	tmp = I915_READ(HSW_AUD_DIP_ELD_CTRL(pipe));
>  	tmp &= ~IBX_ELD_ADDRESS_MASK;
> +	tmp |= ((pipe + 1) << 29);
>  	I915_WRITE(HSW_AUD_DIP_ELD_CTRL(pipe), tmp);

This is not MST specific. Is this a bug fix we want ASAP?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre