xiaomi-aries: new device (Xiaomi Mi2) (!171)

Finally got display working, but it's based on MoKee kernel which is
also hosted on GitHub by community. So what works:

* USB Networking
* Flashing
* Touchscreen
* Display
* Weston with Xwayland

The device boots and shows the splash screen properly, after about 3
sec the screen went black. I had to
"echo 127 > /sys/devices/i2c-0/0-0038/leds/lm3530-backlight/brightness"
to make the backlight work, even though the value of it was already
127.

device/device-xiaomi-aries/APKBUILD

+# Reference: <https://postmarketos.org/devicepkg>
+pkgname="device-xiaomi-aries"
+pkgdesc="Xiaomi Mi 2"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="armhf"
+options="!check !archcheck"
+depends="postmarketos-base linux-xiaomi-aries mkbootimg mesa-dri-swrast mdss-fb-init-hack"
+makedepends="devicepkg-dev"
+source="deviceinfo initfs-hook.sh"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	install -Dm644 "$srcdir"/initfs-hook.sh \
+		"$pkgdir"/etc/postmarketos-mkinitfs/hooks/00-${pkgname}.sh
+	devicepkg_package $startdir $pkgname
+}
+
+
+sha512sums="5fff1fdbd8303870bd7368ed3817f184bb28e0467af3a5efbd0ac471448d967cd4eab471af953eb0f01bff9bc2292aad75ff670b7f61b10ce1a4fab5bff93c2b  deviceinfo
+73d199fdf7eccc2041ea8fabecc8b833d845791d5e7740b9d8e81e8fb917a0db55958f8c0d5499142a5726cf1ee40d6eb0ca16f7dc160276354d940b5abeeedc  initfs-hook.sh"

device/device-xiaomi-aries/deviceinfo

+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Xiaomi Mi 2"
+deviceinfo_manufacturer="Xiaomi"
+deviceinfo_codename="xiaomi-aries"
+deviceinfo_date="2012-10-30"
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_arch="armhf"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="false"
+deviceinfo_screen_width="720"
+deviceinfo_screen_height="1280"
+deviceinfo_dev_touchscreen="/dev/input/event1"
+deviceinfo_dev_touchscreen_calibration=""
+deviceinfo_dev_keyboard=""
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="console=null androidboot.hardware=qcom ehci-hcd.park=3 maxcpus=2 androidboot.bootdevice=msm_sdcc.1 androidboot.selinux=permissive"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="false"
+deviceinfo_flash_offset_base="0x80200000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x02000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"
+

device/device-xiaomi-aries/initfs-hook.sh

+#!/bin/sh
+
+echo 720,3840 > /sys/devices/virtual/graphics/fb0/virtual_size

device/linux-xiaomi-aries/02_gpu-msm-fix-gcc5-compile.patch

+source:
+https://github.com/ShinySide/HispAsian_Lollipop_G6/commit/b7756b6fc4bb728722b14d2dfdbaf1dc843812e9
+
+* These need to be static to avoid these errors:
+
+drivers/built-in.o: In function `.LANCHOR1':
+msm_iommu_sec.c:(.data+0x9298): undefined reference to `kgsl_iommu_sync_lock'
+msm_iommu_sec.c:(.data+0x929c): undefined reference to `kgsl_iommu_sync_unlock'
+Makefile:877: recipe for target '.tmp_vmlinux1' failed
+make: *** [.tmp_vmlinux1] Error 1
+
+Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
+
+--- a/drivers/gpu/msm2/kgsl_iommu.c
++++ b/drivers/gpu/msm2/kgsl_iommu.c
+@@ -1010,7 +1010,7 @@ static int kgsl_iommu_init_sync_lock(struct kgsl_mmu *mmu)
+  *
+  * Return - int - number of commands.
+  */
+-inline unsigned int kgsl_iommu_sync_lock(struct kgsl_mmu *mmu,
++static inline unsigned int kgsl_iommu_sync_lock(struct kgsl_mmu *mmu,
+ 						unsigned int *cmds)
+ {
+ 	struct kgsl_device *device = mmu->device;
+@@ -1080,7 +1080,7 @@ inline unsigned int kgsl_iommu_sync_lock(struct kgsl_mmu *mmu,
+  *
+  * Return - int - number of commands.
+  */
+-inline unsigned int kgsl_iommu_sync_unlock(struct kgsl_mmu *mmu,
++static inline unsigned int kgsl_iommu_sync_unlock(struct kgsl_mmu *mmu,
+ 					unsigned int *cmds)
+ {
+ 	struct kgsl_device *device = mmu->device;

device/linux-xiaomi-aries/03_fix-return-address.patch

+diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
+index f89515adac6..2bb8cac28b9 100644
+--- a/arch/arm/include/asm/ftrace.h
++++ b/arch/arm/include/asm/ftrace.h
+@@ -45,7 +45,7 @@ void *return_address(unsigned int);
+ 
+ #else
+ 
+-extern inline void *return_address(unsigned int level)
++static inline void *return_address(unsigned int level)
+ {
+ 	return NULL;
+ }
+diff --git a/arch/arm/kernel/return_address.c b/arch/arm/kernel/return_address.c
+index 2f8f523cece..a3b587ffc14 100755
+--- a/arch/arm/kernel/return_address.c
++++ b/arch/arm/kernel/return_address.c
+@@ -63,11 +63,6 @@ void *return_address(unsigned int level)
+ //#warning "TODO: return_address should use unwind tables"
+ //#endif
+ 
+-void *return_address(unsigned int level)
+-{
+-	return NULL;
+-}
+-
+ #endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) / else */
+ 
+ EXPORT_SYMBOL_GPL(return_address);
+ 
\ No newline at end of file

device/linux-xiaomi-aries/04_fix-perf-trace-counters.patch

+From e41494c15d4df342854ac3d2940f5d6ac3158212 Mon Sep 17 00:00:00 2001
+From: Bryan Huntsman <bryanh@codeaurora.org>
+Date: Mon, 3 Jun 2013 18:48:08 -0700
+Subject: [PATCH] msm: fix in-tree compilation for perf_trace_counters
+
+In-tree compilation for arch/arm/mach-msm/perf_trace_counters.c was
+hitting this error:
+
+    In file included from arch/arm/mach-msm/perf_trace_counters.h:127:0,
+                     from arch/arm/mach-msm/perf_trace_counters.c:14:
+    include/trace/define_trace.h:79:43: fatal error: ./perf_trace_counters.h: No such file or directory
+
+Instructions for TRACE_INCLUDE_FILE in include/trace/define_trace.h say
+"the path is relative to define_trace.h, not the file including it".
+Fix in-tree compilation by making the path relative to define_trace.h.
+
+Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
+---
+ arch/arm/mach-msm/perf_trace_counters.h | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/arch/arm/mach-msm/perf_trace_counters.h b/arch/arm/mach-msm/perf_trace_counters.h
+index ce7e336aa40d..8f77badf42ac 100644
+--- a/arch/arm/mach-msm/perf_trace_counters.h
++++ b/arch/arm/mach-msm/perf_trace_counters.h
+@@ -121,7 +121,6 @@ TRACE_EVENT(sched_switch_with_ctrs,
+ 
+ #endif
+ #undef TRACE_INCLUDE_PATH
+-#define TRACE_INCLUDE_PATH .
++#define TRACE_INCLUDE_PATH ../../arch/arm/mach-msm
+ #define TRACE_INCLUDE_FILE perf_trace_counters
+ #include <trace/define_trace.h>
+-

device/linux-xiaomi-aries/05_fix-adreno-trace.patch

+--- a/drivers/gpu/msm2/adreno_trace.h
++++ b/drivers/gpu/msm2/adreno_trace.h
+@@ -17,7 +17,7 @@
+ #undef TRACE_SYSTEM
+ #define TRACE_SYSTEM kgsl
+ #undef TRACE_INCLUDE_PATH
+-#define TRACE_INCLUDE_PATH .
++#define TRACE_INCLUDE_PATH ../../drivers/gpu/msm2
+ #define TRACE_INCLUDE_FILE adreno_trace
+ 
+ #include <linux/tracepoint.h>

device/linux-xiaomi-aries/06_fix-kgsl-events-include.patch

+--- a/drivers/gpu/msm2/kgsl_events.c
++++ b/drivers/gpu/msm2/kgsl_events.c
+@@ -14,7 +14,7 @@
+ #include <linux/slab.h>
+ #include <linux/list.h>
+ #include <linux/module.h>
+-#include <kgsl_device.h>
++#include "kgsl_device.h"
+ 
+ #include "kgsl_trace.h"
+ #include "adreno.h"

device/linux-xiaomi-aries/07_fix-kgsl-trace-h.patch

+--- a/drivers/gpu/msm2/kgsl_trace.h
++++ b/drivers/gpu/msm2/kgsl_trace.h
+@@ -17,7 +17,7 @@
+ #undef TRACE_SYSTEM
+ #define TRACE_SYSTEM kgsl
+ #undef TRACE_INCLUDE_PATH
+-#define TRACE_INCLUDE_PATH .
++#define TRACE_INCLUDE_PATH ../../drivers/gpu/msm2
+ #undef TRACE_INCLUDE_FILE
+ #define TRACE_INCLUDE_FILE kgsl_trace

device/linux-xiaomi-aries/08_fix-red-screen.patch

+--- a/drivers/video/msm/msm_fb.c
++++ b/drivers/video/msm/msm_fb.c
+@@ -1371,16 +1371,16 @@
+ 		fix->xpanstep = 1;
+ 		fix->ypanstep = 1;
+ 		var->vmode = FB_VMODE_NONINTERLACED;
+-		var->blue.offset = 0;
+-		var->green.offset = 8;
+-		var->red.offset = 16;
++		var->blue.offset = 24;
++		var->green.offset = 16;
++		var->red.offset = 8;
+ 		var->blue.length = 8;
+ 		var->green.length = 8;
+ 		var->red.length = 8;
+ 		var->blue.msb_right = 0;
+ 		var->green.msb_right = 0;
+ 		var->red.msb_right = 0;
+-		var->transp.offset = 24;
++		var->transp.offset = 0;
+ 		var->transp.length = 8;
+ 		bpp = 4;
+ 		break;
+@@ -1390,16 +1390,16 @@
+ 		fix->xpanstep = 1;
+ 		fix->ypanstep = 1;
+ 		var->vmode = FB_VMODE_NONINTERLACED;
+-		var->blue.offset = 8;
+-		var->green.offset = 16;
+-		var->red.offset = 24;
++		var->blue.offset = 16;
++		var->green.offset = 8;
++		var->red.offset = 0;
+ 		var->blue.length = 8;
+ 		var->green.length = 8;
+ 		var->red.length = 8;
+ 		var->blue.msb_right = 0;
+ 		var->green.msb_right = 0;
+ 		var->red.msb_right = 0;
+-		var->transp.offset = 0;
++		var->transp.offset = 24;
+ 		var->transp.length = 8;
+ 		bpp = 4;
+ 		break;
+@@ -2290,15 +2290,15 @@
+ 		/* Figure out if the user meant RGBA or ARGB
+ 		   and verify the position of the RGB components */
+ 
+-		if (var->transp.offset == 24) {
+-			if ((var->blue.offset != 0) ||
+-			    (var->green.offset != 8) ||
+-			    (var->red.offset != 16))
+-				return -EINVAL;
+-		} else if (var->transp.offset == 0) {
+-			if ((var->blue.offset != 8) ||
++		if (var->transp.offset == 0) {
++			if ((var->blue.offset != 24) ||
+ 			    (var->green.offset != 16) ||
+-			    (var->red.offset != 24))
++			    (var->red.offset != 8))
++				return -EINVAL;
++		} else if (var->transp.offset == 24) {
++			if ((var->blue.offset != 16) ||
++			    (var->green.offset != 8) ||
++			    (var->red.offset != 0))
+ 				return -EINVAL;
+ 		} else
+ 			return -EINVAL;
+@@ -2395,7 +2395,7 @@
+ 		break;
+ 
+ 	case 32:
+-		if (var->transp.offset == 24)
++		if (var->transp.offset == 0)
+ 			mfd->fb_imgType = MDP_ARGB_8888;
+ 		else
+ 			mfd->fb_imgType = MDP_RGBA_8888;

device/linux-xiaomi-aries/APKBUILD

+# Reference: <https://postmarketos.org/vendorkernel>
+# Kernel config based on: arch/arm/configs/aries-perf-user_defconfig
+
+pkgname="linux-xiaomi-aries"
+pkgver=3.4.113
+pkgrel=0
+pkgdesc="Xiaomi Mi 2 kernel fork"
+arch="armhf"
+_carch="arm"
+_flavor="xiaomi-aries"
+url="https://kernel.org"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev devicepkg-dev xz"
+
+# Compiler: latest GCC from Alpine
+HOSTCC="${CC:-gcc}"
+HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
+
+# Source
+_username="MoKee"
+_repository="android_kernel_xiaomi_aries"
+_commit="6a30963cf10e5b7cc938f3ac7b22af4ad72c0bf9"
+_config="config-${_flavor}.${arch}"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/${_username}/${_repository}/archive/${_commit}.tar.gz
+	$_config
+	gcc7-give-up-on-ilog2-const-optimizations.patch
+	gcc8-fix-put-user.patch
+	02_gpu-msm-fix-gcc5-compile.patch
+	03_fix-return-address.patch
+	04_fix-perf-trace-counters.patch
+	05_fix-adreno-trace.patch
+	06_fix-kgsl-events-include.patch
+	07_fix-kgsl-trace-h.patch
+	08_fix-red-screen.patch
+"
+builddir="$srcdir/${_repository}-${_commit}"
+
+prepare() {
+	default_prepare
+	downstreamkernel_prepare "$srcdir" "$builddir" "$_config" "$_carch" "$HOSTCC"
+}
+
+build() {
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+}
+
+package() {
+	# kernel.release
+	install -D "$builddir/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+
+	# zImage (find the right one)
+	cd "$builddir/arch/$_carch/boot"
+	_target="$pkgdir/boot/vmlinuz-$_flavor"
+	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
+		[ -e "$_zimg" ] || continue
+		msg "zImage found: $_zimg"
+		install -Dm644 "$_zimg" "$_target"
+		break
+	done
+	if ! [ -e "$_target" ]; then
+		error "Could not find zImage in $PWD!"
+		return 1
+	fi
+}
+
+sha512sums="3d461173c0ec72d243870bcb2ce1935b2ba1652a532b9b09ef0a3823b5961a3d58415fce2d57f054e1945dc9e70c5c9a68fc45aad26a0adb894bc96120847bc9  linux-xiaomi-aries-6a30963cf10e5b7cc938f3ac7b22af4ad72c0bf9.tar.gz
+57ed0e0ac53a70762612ed10885129ee0a731526cc0792050015f929354db7fdf3eae3552cc11b51273b83ea4547b9cada35c05e2081c6c0ac98ac1f2a2d6da9  config-xiaomi-aries.armhf
+77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
+197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch
+87ff591431c34d920527de8d7640b93bfc1f09ad541a58645969bc1e6b64b89e7443c38dd263cafa9a6090f4a74e0ffcd49f94dba0a4f1df5306dad106ecfb3f  02_gpu-msm-fix-gcc5-compile.patch
+7d5ca9d460030adf529466a8e8ef430337cbb998f78b1b5f37a2809fc745cdb16421dc314045ae411069d5af2ace7028f1139303ae4d6d583b6ae07ad931295e  03_fix-return-address.patch
+f85ced49ee2f2461adea68dac0a10452aa809a7d41d869092d94eb085344919a9a385dec0c48011f4601ca4f441700f7fe49075c7eca4fb2d66b01f7d413ccb7  04_fix-perf-trace-counters.patch
+71465422481ff79d2ddde7a9b55531b963f9a72efa9df47ecd5666353fbfb72e698290fa9e7f51522e2dadb2fa719ad5fc05fabe6c4ff7b9d387243a46d97d72  05_fix-adreno-trace.patch
+f58e3d2d327f2fc06b3599903eca8113facd550010e8e0db4ace8fbdeb042f62fdca61e9748770a8891e21dc8211c8366518e8e16c5d61c6b49a88d34a16493c  06_fix-kgsl-events-include.patch
+30b66b3b82a762a70381cc3e000f092c739714b116ff7fa4d13108e782789dce2f6e1490de54d720a8870fc52d379bd266abb873f79f7a021c0eced0fdbc70af  07_fix-kgsl-trace-h.patch
+67c5d25b7d18644266ea043430655f46edf9cb7ff82612e25e63015a183206966cb41865236ebf642e83bed454cdc0392400e26f4be14f649c615415599229c7  08_fix-red-screen.patch"

device/linux-xiaomi-aries/gcc7-give-up-on-ilog2-const-optimizations.patch

+../../.shared-patches/linux/gcc7-give-up-on-ilog2-const-optimizations.patch
\ No newline at end of file

device/linux-xiaomi-aries/gcc8-fix-put-user.patch

+../../.shared-patches/linux/gcc8-fix-put-user.patch
\ No newline at end of file