On Fri, Mar 18, 2016 at 05:05:40PM +0200, Jani Nikula wrote:
> Prep work for DSI transcoders. No functional changes.
> 
> v2: call split functions at a higher level (Ville)
> 
> Signed-off-by: Jani Nikula <[email protected]>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 32 ++++++++++++++++++++++----------
>  1 file changed, 22 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c 
> b/drivers/gpu/drm/i915/intel_display.c
> index a356a0a78b82..eece50ed3ea6 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -102,6 +102,8 @@ static void intel_cpu_transcoder_set_m_n(struct 
> intel_crtc *crtc,
>                                        struct intel_link_m_n *m2_n2);
>  static void ironlake_set_pipeconf(struct drm_crtc *crtc);
>  static void haswell_set_pipeconf(struct drm_crtc *crtc);
> +static void haswell_set_pipe_gamma(struct drm_crtc *crtc);
> +static void haswell_set_pipemisc(struct drm_crtc *crtc);
>  static void intel_set_pipe_csc(struct drm_crtc *crtc);
>  static void vlv_prepare_pll(struct intel_crtc *crtc,
>                           const struct intel_crtc_state *pipe_config);
> @@ -4928,6 +4930,8 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
>       }
>  
>       haswell_set_pipeconf(crtc);
> +     haswell_set_pipe_gamma(crtc);
> +     haswell_set_pipemisc(crtc);
>  
>       intel_set_pipe_csc(crtc);
>  
> @@ -8764,16 +8768,12 @@ static void intel_set_pipe_csc(struct drm_crtc *crtc)
>  
>  static void haswell_set_pipeconf(struct drm_crtc *crtc)
>  {
> -     struct drm_device *dev = crtc->dev;
> -     struct drm_i915_private *dev_priv = dev->dev_private;
> +     struct drm_i915_private *dev_priv = crtc->dev->dev_private;
>       struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> -     enum pipe pipe = intel_crtc->pipe;
>       enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
> -     uint32_t val;
> +     u32 val = 0;
>  
> -     val = 0;
> -
> -     if (IS_HASWELL(dev) && intel_crtc->config->dither)
> +     if (IS_HASWELL(dev_priv) && intel_crtc->config->dither)
>               val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
>  
>       if (intel_crtc->config->base.adjusted_mode.flags & 
> DRM_MODE_FLAG_INTERLACE)
> @@ -8783,12 +8783,24 @@ static void haswell_set_pipeconf(struct drm_crtc 
> *crtc)
>  
>       I915_WRITE(PIPECONF(cpu_transcoder), val);
>       POSTING_READ(PIPECONF(cpu_transcoder));
> +}
> +
> +static void haswell_set_pipe_gamma(struct drm_crtc *crtc)
> +{
> +     struct drm_i915_private *dev_priv = crtc->dev->dev_private;
> +     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
>  
>       I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT);
>       POSTING_READ(GAMMA_MODE(intel_crtc->pipe));
> +}
> +
> +static void haswell_set_pipemisc(struct drm_crtc *crtc)

As a followuo could perhaps name this broadwell_... and move the gen
check outside? Not sure it would be any nicer though.

Anyways, your way results in a more minimal patch which is nice for
this series.

Reviewed-by: Ville Syrjälä <[email protected]>

> +{
> +     struct drm_i915_private *dev_priv = crtc->dev->dev_private;
> +     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
>  
> -     if (IS_BROADWELL(dev) || INTEL_INFO(dev)->gen >= 9) {
> -             val = 0;
> +     if (IS_BROADWELL(dev_priv) || INTEL_INFO(dev_priv)->gen >= 9) {
> +             u32 val = 0;
>  
>               switch (intel_crtc->config->pipe_bpp) {
>               case 18:
> @@ -8811,7 +8823,7 @@ static void haswell_set_pipeconf(struct drm_crtc *crtc)
>               if (intel_crtc->config->dither)
>                       val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP;
>  
> -             I915_WRITE(PIPEMISC(pipe), val);
> +             I915_WRITE(PIPEMISC(intel_crtc->pipe), val);
>       }
>  }
>  
> -- 
> 2.1.4

-- 
Ville Syrjälä
Intel OTC
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