[Intel-gfx] [PATCH 2/2] drm/i915: add dp mst judgement in hsw_audio_codec_enable

[Ville Syrjälä]

On Wed, Dec 23, 2015 at 02:50:47PM +0800, libin.yang at linux.intel.com wrote:
> From: Libin Yang <libin.yang at linux.intel.com>
> 
> hsw platforms supports DP MST while ilk doesn't.
> This patch fixes the bug.
> 
> Signed-off-by: Libin Yang <libin.yang at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_audio.c | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
> index 431487a0..f46fa7b 100644
> --- a/drivers/gpu/drm/i915/intel_audio.c
> +++ b/drivers/gpu/drm/i915/intel_audio.c
> @@ -255,6 +255,11 @@ static void g4x_audio_codec_enable(struct drm_connector *connector,
>  	I915_WRITE(G4X_AUD_CNTL_ST, tmp);
>  }
>  
> +/* pipe type is DP SST or DP MST */
> +#define intel_pipe_is_dp(intel_crtc) \
> +	(intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT) || \
> +	 intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DP_MST))
> +

crtc->config->has_dp_encoder should be good enough for all platforms.

Though I have some plans to eliminate it, but that doesn't mean we can't
use it in the meantime.

>  static void hsw_audio_codec_disable(struct intel_encoder *encoder)
>  {
>  	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
> @@ -272,8 +277,7 @@ static void hsw_audio_codec_disable(struct intel_encoder *encoder)
>  	tmp |= AUD_CONFIG_N_PROG_ENABLE;
>  	tmp &= ~AUD_CONFIG_UPPER_N_MASK;
>  	tmp &= ~AUD_CONFIG_LOWER_N_MASK;
> -	if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> -	    intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DP_MST))
> +	if (intel_pipe_is_dp(intel_crtc))
>  		tmp |= AUD_CONFIG_N_VALUE_INDEX;
>  	I915_WRITE(HSW_AUD_CFG(pipe), tmp);
>  
> @@ -339,7 +343,7 @@ static void hsw_audio_codec_enable(struct drm_connector *connector,
>  	tmp = I915_READ(HSW_AUD_CFG(pipe));
>  	tmp &= ~AUD_CONFIG_N_VALUE_INDEX;
>  	tmp &= ~AUD_CONFIG_PIXEL_CLOCK_HDMI_MASK;
> -	if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT))
> +	if (intel_pipe_is_dp(intel_crtc))
>  		tmp |= AUD_CONFIG_N_VALUE_INDEX;
>  	else
>  		tmp |= audio_config_hdmi_pixel_clock(adjusted_mode);
> @@ -486,8 +490,7 @@ static void ilk_audio_codec_enable(struct drm_connector *connector,
>  	tmp &= ~AUD_CONFIG_N_VALUE_INDEX;
>  	tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
>  	tmp &= ~AUD_CONFIG_PIXEL_CLOCK_HDMI_MASK;
> -	if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> -	    intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DP_MST))
> +	if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT))
>  		tmp |= AUD_CONFIG_N_VALUE_INDEX;
>  	else
>  		tmp |= audio_config_hdmi_pixel_clock(adjusted_mode);
> @@ -526,8 +529,7 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
>  
>  	/* ELD Conn_Type */
>  	connector->eld[5] &= ~(3 << 2);
> -	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> -	    intel_pipe_has_type(crtc, INTEL_OUTPUT_DP_MST))
> +	if (intel_pipe_is_dp(crtc))
>  		connector->eld[5] |= (1 << 2);
>  
>  	connector->eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2;
> -- 
> 1.9.1

-- 
Ville Syrjälä
Intel OTC