On Tue, 2014-10-28 at 11:45 -0700, Rodrigo Vivi wrote:
> Altought VLV/CHV PSR supports per pipe PSR on VLV it isn't available
> on pipe C.
> Cherryview supports on all 3 pipes.
>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_dp.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index ded73ae..b93eb40 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -2370,6 +2370,14 @@ static bool intel_edp_psr_match_conditions(struct intel_dp *intel_dp)
> return false;
> }
>
> + /* Baytrail supports per-pipe PSR configuration, however it is
> + * available only on pipes A and B.
> + */
> + if (IS_VALLEYVIEW(dev) && intel_crtc->pipe == PIPE_C) {
> + DRM_DEBUG_KMS("PSR on BYT isn't available on pipe C.\n");
> + return false;
> + }
VLV/BYT has only 2 pipes.
> +
> out:
> dev_priv->psr.source_ok = true;
> return true;
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