drm/i915: don't set ADPA pipe select on LPT

Those bits just don't exist on LPT. The CRT DAC, PCH transcoder and
FDI RX are always connected to DDI E.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 5f7c414..e4fd102 100644 (file)
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -245,7 +245,9 @@ static void intel_crt_mode_set(struct drm_encoder *encoder,
                adpa |= ADPA_VSYNC_ACTIVE_HIGH;
 
        /* For CPT allow 3 pipe config, for others just use A or B */
-       if (HAS_PCH_CPT(dev))
+       if (HAS_PCH_LPT(dev))
+               ; /* Those bits don't exist here */
+       else if (HAS_PCH_CPT(dev))
                adpa |= PORT_TRANS_SEL_CPT(intel_crtc->pipe);
        else if (intel_crtc->pipe == 0)
                adpa |= ADPA_PIPE_A_SELECT;