On Fri, Mar 11, 2016 at 05:33:06PM +0200, Ander Conselvan de Oliveira wrote:
> Commit 3d52ccf52f2c ("drm/i915: start adding dp mst audio") erroneously
> added a check for MST encoder to ilk_audio_codec_enable instead of the
> hsw+ equivalent. That causes the HDMI path to be used, resulting in a
> wrong register value.
>
> Cc: Libin Yang <[email protected]>
> Cc: [email protected]
> Fixes: commit 3d52ccf52f2c ("drm/i915: start adding dp mst audio")
> Signed-off-by: Ander Conselvan de Oliveira
> <[email protected]>
> ---
> drivers/gpu/drm/i915/intel_audio.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_audio.c
> b/drivers/gpu/drm/i915/intel_audio.c
> index 30f9214..f5fccf7 100644
> --- a/drivers/gpu/drm/i915/intel_audio.c
> +++ b/drivers/gpu/drm/i915/intel_audio.c
> @@ -329,7 +329,8 @@ 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_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> + intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DP_MST))
Humm. I thought had I asked all of these to be changed to has_dp_encoder.
I wonder if I imagined it or if I was just ignored.
> tmp |= AUD_CONFIG_N_VALUE_INDEX;
> else
> tmp |= audio_config_hdmi_pixel_clock(adjusted_mode);
> @@ -476,8 +477,7 @@ 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);
> --
> 2.4.3
>
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--
Ville Syrjälä
Intel OTC
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