linux-postmarketos-exynos4: disable HDMI for Midas (MR 3395)

Disable HDMI as workaround, as it seems to be buggy when HDMI is
unplugged. It's apparently in DRM_MODE_CONNECTED state, but without size
and with no modes. According to Guido from Phosh this is a bug and
should be fixed in the kernel. By disabling this until it is fixed, we
get Phosh working again.

Related: https://gitlab.gnome.org/World/Phosh/phosh/-/issues/828

device/community/linux-postmarketos-exynos4/0011-ARM-dts-exynos-disable-HDMI-on-Midas.patch

+From 335011b36ca12391000731b3f8371e801069e87b Mon Sep 17 00:00:00 2001
+From: Oliver Smith <ollieparanoid@postmarketos.org>
+Date: Thu, 1 Sep 2022 21:56:03 +0200
+Subject: [PATCH] ARM: dts: exynos: disable HDMI on Midas
+
+Disable it as workaround because when unplugged, HDMI appears as
+DRM_MNODE_CONNECTED with a surface are of 0x0.
+
+Related: https://gitlab.gnome.org/World/Phosh/phosh/-/issues/828
+---
+ arch/arm/boot/dts/exynos4412-midas.dtsi | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi
+index 6e854e732599..79b9f773d98f 100644
+--- a/arch/arm/boot/dts/exynos4412-midas.dtsi
++++ b/arch/arm/boot/dts/exynos4412-midas.dtsi
+@@ -307,11 +307,13 @@ sii9234: hdmi-bridge@39 {
+ 			interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
+ 			reg = <0x39>;
+ 
++/*
+ 			port {
+ 				mhl_to_hdmi: endpoint {
+ 					remote-endpoint = <&hdmi_to_mhl>;
+ 				};
+ 			};
++*/
+ 		};
+ 	};
+ 
+@@ -544,6 +546,7 @@ &gpu {
+ 	status = "okay";
+ };
+ 
++/*
+ &hdmi {
+ 	hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ 	pinctrl-names = "default";
+@@ -566,6 +569,7 @@ hdmi_to_mhl: endpoint {
+ 		};
+ 	};
+ };
++*/
+ 
+ &hsotg {
+ 	vusb_d-supply = <&ldo15_reg>;
+@@ -1200,10 +1204,12 @@ sdhci2_cd: sdhci2-cd-irq-pins {
+ 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ 	};
+ 
++/*
+ 	hdmi_hpd: hdmi-hpd-pins {
+ 		samsung,pins = "gpx3-7";
+ 		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
+ 	};
++*/
+ 
+ 	sleep1: sleep-state {
+ 		PIN_SLP(gpk0-0, PREV, NONE);
+-- 
+2.30.2
+

device/community/linux-postmarketos-exynos4/APKBUILD

@@ -4,7 +4,7 @@
 
 pkgname=linux-postmarketos-exynos4
 pkgver=5.18.0
-pkgrel=1
+pkgrel=2
 pkgdesc="Mainline kernel fork for Samsung Exynos4 devices"
 arch="armv7"
 _carch="arm"
@@ -49,6 +49,7 @@ source="
 	0008-ARM-dts-driver-exynos-n710x-add-panel.patch
 	0009-ARM-dts-exynos-n710x-add-leds.patch
 	0010-drm-Allow-DRM_IOCTL_MODE_CREATE_DUMB-on-render-nodes.patch
+	0011-ARM-dts-exynos-disable-HDMI-on-Midas.patch
 	initramfs.list
 	init
 "
@@ -100,6 +101,7 @@ de87e6a6608165cdc35a03bd10dedef1c12a2a9e1f66f500879c05b287bae7181cc95021a3a2aad6
 054a03b327386b32b516cf7f9fdbf15adba9b3fb6d0d20473493f7e4538202496829443eb18f9a928b4959b1296ee98171d4a19d8fcf58439d4fdb122fbb97ac  0008-ARM-dts-driver-exynos-n710x-add-panel.patch
 63c9e1a1d92e1deb286d6623e116e1cce36bfbae3f9b5db60dc1751573af7477003c7680afe054e7170fee632fd11e38c1bea12ec51299d547557112784f762f  0009-ARM-dts-exynos-n710x-add-leds.patch
 56b08a9b72760f26cdbda9f89875ee4b502dca4d9dd15bf33c8ed1cda82cf75c9588514a378fd2e942a41e52378348cc8e55da303660cce59bf8a12287568daf  0010-drm-Allow-DRM_IOCTL_MODE_CREATE_DUMB-on-render-nodes.patch
+5b09f9ee24c092143da79da6d89fbd4ff2689a9e74beeb5bef51cab47f5834f4857ecb8f08333722b1c4638354c27ab3db80aa2ad7b8d731743e53e0a08f2f6d  0011-ARM-dts-exynos-disable-HDMI-on-Midas.patch
 aaff0332b90e1f9f62de1128cace934717336e54ab09de46477369fa808302482d97334e43a85ee8597c1bcab64d3484750103559fea2ce8cd51776156bf7591  initramfs.list
 09f1f214a24300696809727a7b04378887c06ca6f40803ca51a12bf2176a360b2eb8632139d6a0722094e05cb2038bdb04018a1e3d33fc2697674552ade03bee  init
 "