[Intel-gfx] [PATCH 01/36] drm/i915: don't set ADPA pipe select on LPT

[Paulo Zanoni]

From: Paulo Zanoni <paulo.r.zanoni at intel.com>

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 at intel.com>
---
 drivers/gpu/drm/i915/intel_crt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 5f7c414..e4fd102 100644
--- 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;
-- 
1.7.11.4