drm/i915/bios: intel_bios_dp_boost_level()

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

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fb8645cecadbc4ebeea1c0de94cb3116a769d9bf.1579270868.git.jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 50bff4e..88b78ea 100644 (file)
--- 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 c6cc413..5e68c58 100644 (file)
--- 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 cfaa64d..7bd5858 100644 (file)
--- 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;