From 224b8df00cb21c9974abb04819b646d2bb2a4754 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Fri, 1 Oct 2021 16:00:58 +0300
Subject: drm/i915: Introduce has_iboost()
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Git-commit: f820693bc2381d73d2769d8b7cc16210f21244a8
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Suck the "do we have iboost?" platform checks into a small helper.
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211001130107.1746-2-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 51cd0420e00e..f6429114ce7c 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -92,6 +92,11 @@ static int intel_ddi_hdmi_level(struct intel_encoder *encoder,
return level;
}
+static bool has_iboost(struct drm_i915_private *i915)
+{
+ return DISPLAY_VER(i915) == 9 && !IS_BROXTON(i915);
+}
+
/*
* Starting with Haswell, DDI port buffers must be programmed with correct
* values in advance. This function programs the correct values for
@@ -111,7 +116,7 @@ void hsw_prepare_dp_ddi_buffers(struct intel_encoder *encoder,
return;
/* If we're boosting the current, set bit 31 of trans1 */
- if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv) &&
+ if (has_iboost(dev_priv) &&
intel_bios_encoder_dp_boost_level(encoder->devdata))
iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE;
@@ -145,7 +150,7 @@ static void hsw_prepare_hdmi_ddi_buffers(struct intel_encoder *encoder,
level = n_entries - 1;
/* If we're boosting the current, set bit 31 of trans1 */
- if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv) &&
+ if (has_iboost(dev_priv) &&
intel_bios_encoder_hdmi_boost_level(encoder->devdata))
iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE;
@@ -1463,7 +1468,7 @@ hsw_set_signal_levels(struct intel_dp *intel_dp,
intel_dp->DP &= ~DDI_BUF_EMP_MASK;
intel_dp->DP |= signal_levels;
- if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv))
+ if (has_iboost(dev_priv))
skl_ddi_set_iboost(encoder, crtc_state, level);
intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP);
@@ -3084,7 +3089,7 @@ static void intel_enable_ddi_hdmi(struct intel_atomic_state *state,
else
hsw_prepare_hdmi_ddi_buffers(encoder, crtc_state, level);
- if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv))
+ if (has_iboost(dev_priv))
skl_ddi_set_iboost(encoder, crtc_state, level);
/* Display WA #1143: skl,kbl,cfl */
--
2.38.1