According to Bspec we need to
"Poll for PORT_REF_DW3_A grc_done == 1b"
only on ports B and C initialization sequence when
copying rcomp from port A.
So let's follow the spec and only poll for that case
and not on every port A initialization.
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dpio_phy.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dpio_phy.c b/drivers/gpu/drm/i915/intel_dpio_phy.c
index 7a8e82d..277b1aa 100644
--- a/drivers/gpu/drm/i915/intel_dpio_phy.c
+++ b/drivers/gpu/drm/i915/intel_dpio_phy.c
@@ -367,6 +367,9 @@ static void _bxt_ddi_phy_init(struct drm_i915_private *dev_priv,
if (phy_info->rcomp_phy != -1) {
uint32_t grc_code;
+
+ bxt_phy_wait_grc_done(dev_priv, phy_info->rcomp_phy);
+
/*
* PHY0 isn't connected to an RCOMP resistor so copy over
* the corresponding calibrated value from PHY1, and disable
@@ -387,10 +390,6 @@ static void _bxt_ddi_phy_init(struct drm_i915_private *dev_priv,
val = I915_READ(BXT_PHY_CTL_FAMILY(phy));
val |= COMMON_RESET_DIS;
I915_WRITE(BXT_PHY_CTL_FAMILY(phy), val);
-
- if (phy_info->rcomp_phy == -1)
- bxt_phy_wait_grc_done(dev_priv, phy);
-
}
void bxt_ddi_phy_uninit(struct drm_i915_private *dev_priv, enum dpio_phy phy)
--
1.9.1
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