From 0f68b23aafc102926ccc833b228d098f5613f3e8 Mon Sep 17 00:00:00 2001
From: Patrick Georgi <pgeorgi@chromium.org>
Date: Thu, 25 Jan 2018 18:23:15 +0100
Subject: intel: Prepare registers so Windows drivers are happier

Change-Id: I12ebed30de4df9814ccb62341c7715fc62c7f5b9
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Signed-off-by: Pratik Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/23431
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
---
 src/soc/intel/skylake/graphics.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/soc/intel/skylake')

diff --git a/src/soc/intel/skylake/graphics.c b/src/soc/intel/skylake/graphics.c
index 8e6d6ec3f2..f39f39c6a0 100644
--- a/src/soc/intel/skylake/graphics.c
+++ b/src/soc/intel/skylake/graphics.c
@@ -67,6 +67,8 @@ static void update_igd_opregion(igd_opregion_t *opregion)
 {
 	u16 reg16;
 
+	opregion->mailbox1.clid = 1;
+
 	/* Initialize Mailbox 3 */
 	opregion->mailbox3.bclp = IGD_BACKLIGHT_BRIGHTNESS;
 	opregion->mailbox3.pfit = IGD_FIELD_VALID | IGD_PFIT_STRETCH;
-- 
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