[Intel-gfx] [PATCH 18/71] drm/i915/chv: Add vlv_pipe_to_channel

[Imre Deak]

On Wed, 2014-04-09 at 13:28 +0300, ville.syrjala at linux.intel.com wrote:
> From: Chon Ming Lee <chon.ming.lee at intel.com>
> 
> Cherryview has 3 pipes.  Some of the pll dpio offset calculation is
> based on pipe number.  Need to use vlv_pipe_to_channel to calculate the
> correct phy channel to use for the pipe.
> 
> Signed-off-by: Chon Ming Lee <chon.ming.lee at intel.com>

Reviewed-by: Imre Deak <imre.deak at intel.com>

> ---
>  drivers/gpu/drm/i915/intel_drv.h | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 087e471..e572799 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -544,6 +544,20 @@ vlv_dport_to_channel(struct intel_digital_port *dport)
>  	}
>  }
>  
> +static inline int
> +vlv_pipe_to_channel(enum pipe pipe)
> +{
> +	switch (pipe) {
> +	case PIPE_A:
> +	case PIPE_C:
> +		return DPIO_CH0;
> +	case PIPE_B:
> +		return DPIO_CH1;
> +	default:
> +		BUG();
> +	}
> +}
> +
>  static inline struct drm_crtc *
>  intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
>  {

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