From: Paulo Zanoni <paulo.r.zanoni at intel.com>
This function runs on Haswell, so set the correct pch_transcoder and
cpu_transcoder variables. This fixes an assertion failure on Haswell
VGA.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 9940765..e4d7079 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1812,9 +1812,15 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
{
enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
pipe);
+ enum transcoder pch_transcoder;
int reg;
u32 val;
+ if (IS_HASWELL(dev_priv->dev))
+ pch_transcoder = TRANSCODER_A;
+ else
+ pch_transcoder = pipe;
+
/*
* A pipe without a PLL won't actually be able to drive bits from
* a plane. On ILK+ the pipe PLLs are integrated, so we don't
@@ -1825,8 +1831,8 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
else {
if (pch_port) {
/* if driving the PCH, we need FDI enabled */
- assert_fdi_rx_pll_enabled(dev_priv, pipe);
- assert_fdi_tx_pll_enabled(dev_priv, pipe);
+ assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
+ assert_fdi_tx_pll_enabled(dev_priv, cpu_transcoder);
}
/* FIXME: assert CPU port conditions for SNB+ */
}
--
1.7.11.7
