arm64: dts: qcom: Add support for Microsoft Lumia 950 XL (Cityman)

Add device tree support for Microsoft Lumia 950 XL smartphone.
It is based on the msm8994 chipset and is able to boot Linux
using a custom EDK2 implementation. EL2 core startup is possible
with spin-table, but for now, we'll stick with PSCI.

The board currently supports:
* Screen console via EFIFB
* SDHCI
* I2C
* UART
* PSCI core bringup

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20201005150313.149754-12-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 3573f7a..90887aa 100644 (file)
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -12,6 +12,7 @@ dtb-$(CONFIG_ARCH_QCOM)       += msm8992-bullhead-rev-101.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += msm8992-msft-lumia-talkman.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += msm8992-xiaomi-libra.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += msm8994-angler-rev-101.dtb
+dtb-$(CONFIG_ARCH_QCOM)        += msm8994-msft-lumia-cityman.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += msm8994-sony-xperia-kitakami-sumire.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += msm8996-mtp.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += msm8998-asus-novago-tp370ql.dtb

diff --git a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-cityman.dts b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-cityman.dts
new file mode 100644 (file)
index 0000000..ed9034b
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-cityman.dts
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2020, Konrad Dybcio
+ */
+
+/dts-v1/;
+
+#include "msm8994.dtsi"
+#include "pm8994.dtsi"
+#include "pmi8994.dtsi"
+
+/ {
+       model = "Microsoft Lumia 950 XL";
+       compatible = "microsoft,cityman", "qcom,msm8994";
+
+       /*
+        * Most Lumia 950XL users use GRUB to load their kernels,
+        * hence there is no need for msm-id and friends.
+        */
+
+       /*
+        * This enables graphical output via bootloader-enabled display.
+        * acpi=no is required due to WP platforms having ACPI support, but
+        * only for Windows-based OSes.
+        */
+       chosen {
+               bootargs = "earlycon=efifb console=efifb acpi=no";
+
+               #address-cells = <2>;
+               #size-cells = <2>;
+               ranges;
+       };
+};
+
+&blsp_i2c1 {
+       status = "okay";
+
+       rmi4-i2c-dev@4b {
+               compatible = "syna,rmi4-i2c";
+               reg = <0x4b>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               interrupt-parent = <&tlmm>;
+               interrupts = <77 IRQ_TYPE_EDGE_FALLING>;
+
+               rmi4-f01@1 {
+                       reg = <0x01>;
+                       syna,nosleep-mode = <1>;
+               };
+
+               rmi4-f12@12 {
+                       reg = <0x12>;
+                       syna,sensor-type = <1>;
+                       syna,clip-x-low = <0>;
+                       syna,clip-x-high = <1440>;
+                       syna,clip-y-low = <0>;
+                       syna,clip-y-high = <2660>;
+               };
+       };
+};
+
+&blsp1_uart2 {
+       status = "okay";
+};
+
+&blsp2_uart2 {
+       status = "okay";
+};
+
+&sdhc1 {
+       status = "okay";
+};