polaris: Add initial device tree files

Change-Id: Ie2b132330e73d382a4a57970266a633a5ace4739

Android.mk

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+#
+# Copyright (C) 2018 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+# This contains the module build definitions for the hardware-specific
+# components for this device.
+#
+# As much as possible, those components should be built unconditionally,
+# with device-specific names to avoid collisions, to avoid device-specific
+# bitrot and build breakages. Building a component unconditionally does
+# *not* include it on all devices, so it is safe even with hardware-specific
+# components.
+
+LOCAL_PATH := $(call my-dir)
+
+ifeq ($(TARGET_DEVICE),polaris)
+include $(call all-makefiles-under,$(LOCAL_PATH))
+endif

BoardConfig.mk

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+#
+# Copyright (C) 2018 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+# Inherit from sdm845-common
+-include device/xiaomi/sdm845-common/BoardConfigCommon.mk
+
+DEVICE_PATH := device/xiaomi/polaris
+
+# Assert
+TARGET_OTA_ASSERT_DEVICE := polaris
+
+# Kernel
+TARGET_KERNEL_CONFIG := polaris_defconfig
+
+# Inherit from the proprietary version
+-include vendor/xiaomi/polaris/BoardConfigVendor.mk

README.md

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+Copyright (C) 2018 The LineageOS Project
+
+Device configuration for Xiaomi MIX 2S
+=========================================
+
+The Xiaomi MIX 2S (codenamed _"polaris"_) is a high-end smartphone from Xiaomi.
+
+It was announced in March 2018. Release date was April 2018.
+
+## Device specifications
+
+Basic   | Spec Sheet
+-------:|:-------------------------
+SoC     | Qualcomm SDM845 Snapdragon 845
+CPU     | Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)
+GPU     | Adreno 630
+Memory  | 6/8 GB RAM
+Shipped Android Version | 8.0 with MIUI 9.5
+Storage | 64/128/256 GB
+Battery | Non-removable Li-Ion 3400 mAh battery
+Display | 1080 x 2160 pixels, 18:9 ratio, 5.99 inches, IPS LCD (~403 ppi density)
+Camera  | Dual 12 MP, 4-axis OIS, 2x optical zoom, dual PDAF, dual-LED (dual tone) flash
+
+## Device picture
+
+![Xiaomi MIX 2S](https://xiaomi-mi.com/uploads/CatalogueImage/xiaomi-mi-mix-2s-6gb64gb-dual-sim-ceramic-black-01_16852_1522169412.jpg "Xiaomi MIX 2S in ceramic black")

device.mk

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+#
+# Copyright (C) 2018 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+$(call inherit-product, $(SRC_TARGET_DIR)/product/product_launched_with_o.mk)
+
+# Get non-open-source specific aspects
+$(call inherit-product-if-exists, vendor/xiaomi/polaris/polaris-vendor.mk)
+
+# Boot animation
+TARGET_SCREEN_HEIGHT := 2160
+TARGET_SCREEN_WIDTH := 1080
+
+# Overlays
+DEVICE_PACKAGE_OVERLAYS += \
+    $(LOCAL_PATH)/overlay
+
+# Screen density
+PRODUCT_AAPT_CONFIG := normal
+PRODUCT_AAPT_PREF_CONFIG := xxhdpi
+
+# Inherit from sdm845-common
+$(call inherit-product, device/xiaomi/sdm845-common/sdm845.mk)

extract-files.sh

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+#!/bin/bash
+#
+# Copyright (C) 2018 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+set -e
+
+export DEVICE=polaris
+export DEVICE_COMMON=sdm845-common
+export VENDOR=xiaomi
+
+export DEVICE_BRINGUP_YEAR=2018
+
+./../../$VENDOR/$DEVICE_COMMON/extract-files.sh $@

lineage.dependencies

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+[
+  {
+    "repository": "android_device_xiaomi_sdm845-common",
+    "target_path": "device/xiaomi/sdm845-common"
+  }
+]

lineage.mk

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+#
+# Copyright (C) 2018 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+$(call inherit-product, device/xiaomi/polaris/device.mk)
+
+# Inherit some common Lineage stuff.
+$(call inherit-product, vendor/lineage/config/common_full_phone.mk)
+
+# Device identifier. This must come after all inclusions.
+PRODUCT_NAME := lineage_polaris
+PRODUCT_DEVICE := polaris
+PRODUCT_BRAND := Xiaomi
+PRODUCT_MODEL := Mi MIX 2S
+PRODUCT_MANUFACTURER := Xiaomi
+
+BUILD_FINGERPRINT := "Xiaomi/polaris/polaris:8.0.0/OPR1.170623.032/V9.5.19.0.ODGMIFA:user/release-keys"
+
+PRODUCT_BUILD_PROP_OVERRIDES += \
+    PRIVATE_BUILD_DESC="polaris-user 8.0.0 OPR1.170623.032 V9.5.19.0.ODGMIFA release-keys" \
+    PRODUCT_NAME="polaris" \
+    TARGET_DEVICE="polaris"
+
+PRODUCT_GMS_CLIENTID_BASE := android-xiaomi

setup-makefiles.sh

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+#!/bin/bash
+#
+# Copyright (C) 2018 The LineageOS Project
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+set -e
+
+export DEVICE=polaris
+export DEVICE_COMMON=sdm845-common
+export VENDOR=xiaomi
+
+export DEVICE_BRINGUP_YEAR=2018
+
+./../../$VENDOR/$DEVICE_COMMON/setup-makefiles.sh $@