[PATCH 3/9] drm/i915/bios: intel_bios_dp_boost_level()

[Jani Nikula <jani.nikula@xxxxxxxxx>]

Don't access i915->vbt.ddi_port_info[] directly.

Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
 drivers/gpu/drm/i915/display/intel_bios.c | 7 +++++++
 drivers/gpu/drm/i915/display/intel_bios.h | 1 +
 drivers/gpu/drm/i915/display/intel_ddi.c  | 5 ++---
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 50bff4e7d5c2..88b78eae8bb2 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -2578,3 +2578,10 @@ int intel_bios_hdmi_level_shift(struct intel_encoder *encoder)
 
 	return info->hdmi_level_shift_set ? info->hdmi_level_shift : -1;
 }
+
+int intel_bios_dp_boost_level(struct intel_encoder *encoder)
+{
+	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+	return i915->vbt.ddi_port_info[encoder->port].dp_boost_level;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h
index c6cc413bf8ec..5e68c58b58ca 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.h
+++ b/drivers/gpu/drm/i915/display/intel_bios.h
@@ -249,5 +249,6 @@ bool intel_bios_get_dsc_params(struct intel_encoder *encoder,
 			       int dsc_max_bpc);
 int intel_bios_max_tmds_clock(struct intel_encoder *encoder);
 int intel_bios_hdmi_level_shift(struct intel_encoder *encoder);
+int intel_bios_dp_boost_level(struct intel_encoder *encoder);
 
 #endif /* _INTEL_BIOS_H_ */
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index cfaa64df9892..7bd5858b1f4a 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -1022,8 +1022,7 @@ static void intel_prepare_dp_ddi_buffers(struct intel_encoder *encoder,
 							      &n_entries);
 
 	/* If we're boosting the current, set bit 31 of trans1 */
-	if (IS_GEN9_BC(dev_priv) &&
-	    dev_priv->vbt.ddi_port_info[port].dp_boost_level)
+	if (IS_GEN9_BC(dev_priv) && intel_bios_dp_boost_level(encoder))
 		iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE;
 
 	for (i = 0; i < n_entries; i++) {
@@ -2344,7 +2343,7 @@ static void skl_ddi_set_iboost(struct intel_encoder *encoder,
 	if (type == INTEL_OUTPUT_HDMI)
 		iboost = dev_priv->vbt.ddi_port_info[port].hdmi_boost_level;
 	else
-		iboost = dev_priv->vbt.ddi_port_info[port].dp_boost_level;
+		iboost = intel_bios_dp_boost_level(encoder);
 
 	if (iboost == 0) {
 		const struct ddi_buf_trans *ddi_translations;
-- 
2.20.1

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