linux/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama-akatsuki.dts
Konrad Dybcio 30a7f99bef arm64: dts: qcom: Add support for SONY Xperia XZ2 / XZ2C / XZ3 (Tama platform)
Add support for SONY Xperia XZ2, XZ2 Compact and XZ3 smartphones, all based on
the Qualcomm SDM845 chipset. There also exists a fourth Tama device, the XZ2
Premium (Aurora) with a 4K display, but it's relatively rare.

The devices are affected by a scary UFS behaviour where sending a certain UFS
command (which is worked around on downstream) renders the device unbootable,
by effectively erasing the bootloader. Therefore UFS AND UFSPHY are strictly
disabled for now.

Downstream workaround:
2e7a9ee1c9

This platform's bootloader is not very nice either. To boot mainline you need
to flash a bogus DTBO (fastboot erasing may cut it, but it takes an inhumane
amount of time) - one that's just 4 bytes (all zeroes) seems to work just fine.

Of course, one can also provide a "normal" DTBO (device-specific DT overlayed
on top of the SoC DT), but that's not yet supported by the mainline kernel
build system.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211111184630.605035-1-konrad.dybcio@somainline.org
2021-11-20 16:24:57 -06:00

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// SPDX-License-Identifier: BSD-3-Clause
/*
* Copyright (c) 2021, Konrad Dybcio <konrad.dybcio@somainline.org>
*/
/dts-v1/;
#include "sdm845-sony-xperia-tama.dtsi"
/ {
model = "Sony Xperia XZ3";
compatible = "sony,akatsuki-row", "qcom,sdm845";
};
/* For the future: WLED + LAB/IBB/OLEDB are not used on Akatsuki */
&vreg_l14a_1p8 {
regulator-min-microvolt = <1840000>;
regulator-max-microvolt = <1840000>;
};
&vreg_l22a_2p8 {
regulator-min-microvolt = <2700000>;
regulator-max-microvolt = <2700000>;
};
&vreg_l28a_2p8 {
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
};