From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Fri, 30 Apr 2021 22:38:05 +0000 (-0700)
Subject: drm/i915/display: move vbt check to intel_ddi_init()
X-Git-Tag: v5.14-rc1~114^2~22^2~41
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a5be0c978cc498adb6886a9374644c393b6005a3;p=thirdparty%2Fkernel%2Flinux.git

drm/i915/display: move vbt check to intel_ddi_init()

Since commit 45c0673aac97 ("drm/i915/bios: start using the
intel_bios_encoder_data directly") we lookup the devdata for each port
in intel_ddi_init() and just return if the port is not present in VBT
(or if we didn't create a fake devdata for it if VBT is not available).

So in intel_display.c we don't have to check
intel_bios_is_port_present(), just rely on the check in
intel_ddi_init().

v2: Rebase on commit 45c0673aac97 ("drm/i915/bios: start using the
intel_bios_encoder_data directly") re-using that check in intel_ddi_init()
instead of adding a new one.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430223808.1078010-2-lucas.demarchi@intel.com
---

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index a45916791e817..5066d8587bf67 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -11199,13 +11199,13 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv)
 		intel_ddi_init(dev_priv, PORT_C);
 		intel_ddi_init(dev_priv, PORT_D);
 		intel_ddi_init(dev_priv, PORT_E);
+
 		/*
-		 * On some ICL SKUs port F is not present. No strap bits for
-		 * this, so rely on VBT.
-		 * Work around broken VBTs on SKUs known to have no port F.
+		 * On some ICL SKUs port F is not present, but broken VBTs mark
+		 * the port as present. Only try to initialize port F for the
+		 * SKUs that may actually have it.
 		 */
-		if (IS_ICL_WITH_PORT_F(dev_priv) &&
-		    intel_bios_is_port_present(dev_priv, PORT_F))
+		if (IS_ICL_WITH_PORT_F(dev_priv))
 			intel_ddi_init(dev_priv, PORT_F);
 
 		icl_dsi_init(dev_priv);
@@ -11259,10 +11259,8 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv)
 		/*
 		 * On SKL we don't have a way to detect DDI-E so we rely on VBT.
 		 */
-		if (DISPLAY_VER(dev_priv) == 9 &&
-		    intel_bios_is_port_present(dev_priv, PORT_E))
+		if (DISPLAY_VER(dev_priv) == 9)
 			intel_ddi_init(dev_priv, PORT_E);
-
 	} else if (HAS_PCH_SPLIT(dev_priv)) {
 		int found;