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arm64: dts: qcom: msm8994-angler: Disable cont_splash_mem 

As the default definition breaks booting angler:
[    1.862561] printk: console [ttyMSM0] enabled
[    1.872260] msm_serial: driver initialized
D -     15524 - pm_driver_init, Delta

cont_splash_mem was introduced in 74d6d0a145, but the problem
manifested after commit '86588296acbf ("fdt: Properly handle "no-map"
field in the memory region")'.

Disabling it because Angler's firmware does not report where the memory
is allocated (dmesg from downstream kernel):
[    0.000000] cma: Found cont_splash_mem@0, memory base 0x0000000000000000, size 16 MiB, limit 0x0000000000000000
[    0.000000] cma: CMA: reserved 16 MiB at 0x0000000000000000 for cont_splash_mem

Similar issue might be on Google Nexus 5X (lg-bullhead). Other MSM8992/4
are known to report correct address.

Fixes: 74d6d0a145 ("arm64: dts: qcom: msm8994/8994-kitakami: Fix up the memory map")
Suggested-by: Konrad Dybcio <konradybcio@gmail.com>
Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
Link: https://lore.kernel.org/r/20210622191019.23771-1-petr.vorel@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Petr Vorel 2021-06-22 21:10:19 +02:00 committed by Bjorn Andersson
parent 4cbb02fa76
commit 0e5ded926f
1 changed files with 4 additions and 0 deletions
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4
arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts
View File

@ -1,12 +1,16 @@
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2015, Huawei Inc. All rights reserved.
* Copyright (c) 2016, The Linux Foundation. All rights reserved.
* Copyright (c) 2021, Petr Vorel <petr.vorel@gmail.com>
*/
/dts-v1/;
#include "msm8994.dtsi"
/* Angler's firmware does not report where the memory is allocated */
/delete-node/ &cont_splash_mem;
/ {
model = "Huawei Nexus 6P";
compatible = "huawei,angler", "qcom,msm8994";