[meta-rockchip][PATCH v7 2/6] linux-yocto: add workaround to disable VOPL usage on HDMI

["Yann Dirson" <yann.dirson@blade-group.com>]

From: Yann Dirson <yann@blade-group.com>

There is a known issue in mainline kernel making the machine unusable
once a HDMI screen is plugged.  This patch lets VOPB be alone to use
the HDMI port and avoids the issue while providing wupport for the largest
set of video modes, at the expense of double-screen support.
---
 .../files/bsp/rockchip/hdmi-no-vopl.patch     | 65 +++++++++++++++++++
 .../linux/files/bsp/rockchip/rockchip.scc     |  2 +
 2 files changed, 67 insertions(+)
 create mode 100644 recipes-kernel/linux/files/bsp/rockchip/hdmi-no-vopl.patch

diff --git a/recipes-kernel/linux/files/bsp/rockchip/hdmi-no-vopl.patch b/recipes-kernel/linux/files/bsp/rockchip/hdmi-no-vopl.patch
new file mode 100644
index 0000000..72ed753
--- /dev/null
+++ b/recipes-kernel/linux/files/bsp/rockchip/hdmi-no-vopl.patch
@@ -0,0 +1,65 @@
+From 92d9cf4e6c2767c8c5aa8d97e684f2f77d950e7d Mon Sep 17 00:00:00 2001
+From: Jonas Karlman <jonas@kwiboo.se>
+Date: Sun, 19 Jul 2020 16:35:11 +0000
+Subject: [PATCH] HACK: dts: rockchip: do not use vopl for hdmi
+Upstream-Status: Inappropriate [other]
+
+---
+ arch/arm/boot/dts/rk3288.dtsi            | 9 ---------
+ arch/arm64/boot/dts/rockchip/rk3399.dtsi | 9 ---------
+ 2 files changed, 18 deletions(-)
+
+diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
+index 03e86d012edd..746acfac1e92 100644
+--- a/arch/arm/boot/dts/rk3288.dtsi
++++ b/arch/arm/boot/dts/rk3288.dtsi
+@@ -1104,11 +1104,6 @@ vopl_out: port {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+ 
+-			vopl_out_hdmi: endpoint@0 {
+-				reg = <0>;
+-				remote-endpoint = <&hdmi_in_vopl>;
+-			};
+-
+ 			vopl_out_edp: endpoint@1 {
+ 				reg = <1>;
+ 				remote-endpoint = <&edp_in_vopl>;
+@@ -1249,10 +1244,6 @@ hdmi_in_vopb: endpoint@0 {
+ 					reg = <0>;
+ 					remote-endpoint = <&vopb_out_hdmi>;
+ 				};
+-				hdmi_in_vopl: endpoint@1 {
+-					reg = <1>;
+-					remote-endpoint = <&vopl_out_hdmi>;
+-				};
+ 			};
+ 		};
+ 	};
+diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+index a855805649ef..418d16b0b648 100644
+--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
++++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+@@ -1640,11 +1640,6 @@ vopl_out_edp: endpoint@1 {
+ 				remote-endpoint = <&edp_in_vopl>;
+ 			};
+ 
+-			vopl_out_hdmi: endpoint@2 {
+-				reg = <2>;
+-				remote-endpoint = <&hdmi_in_vopl>;
+-			};
+-
+ 			vopl_out_mipi1: endpoint@3 {
+ 				reg = <3>;
+ 				remote-endpoint = <&mipi1_in_vopl>;
+@@ -1816,10 +1811,6 @@ hdmi_in_vopb: endpoint@0 {
+ 					reg = <0>;
+ 					remote-endpoint = <&vopb_out_hdmi>;
+ 				};
+-				hdmi_in_vopl: endpoint@1 {
+-					reg = <1>;
+-					remote-endpoint = <&vopl_out_hdmi>;
+-				};
+ 			};
+ 		};
+ 	};
diff --git a/recipes-kernel/linux/files/bsp/rockchip/rockchip.scc b/recipes-kernel/linux/files/bsp/rockchip/rockchip.scc
index 800f105..4d61509 100644
--- a/recipes-kernel/linux/files/bsp/rockchip/rockchip.scc
+++ b/recipes-kernel/linux/files/bsp/rockchip/rockchip.scc
@@ -4,3 +4,5 @@ kconf hardware rockchip.cfg
 
 include cfg/dmaengine.scc
 include features/mmc/mmc-block.cfg
+
+patch hdmi-no-vopl.patch
-- 
2.30.2