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arm64: dts: qcom: Split out SA8155P and use correct RPMh power domains

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The RPMhPD setup on SA8155P is different compared to SM8150. Correct
it to ensure the platform will not try accessing forbidden/missing
RPMh entries at boot, as a bad vote will hang the machine.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230411-topic-hanaau-v2-3-fd3d70844b31@linaro.org
This commit is contained in:
Konrad Dybcio 2023-04-11 15:47:17 +02:00 committed by Bjorn Andersson
parent 57a9d4bdb4
commit 8c67e55475
2 changed files with 41 additions and 1 deletions
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2
arch/arm64/boot/dts/qcom/sa8155p-adp.dts
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@ -7,7 +7,7 @@
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
#include <dt-bindings/gpio/gpio.h>
#include "sm8150.dtsi"
#include "sa8155p.dtsi"
#include "pmm8155au_1.dtsi"
#include "pmm8155au_2.dtsi"

40
arch/arm64/boot/dts/qcom/sa8155p.dtsi Normal file
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@ -0,0 +1,40 @@
// SPDX-License-Identifier: BSD-3-Clause
/*
* Copyright (c) 2023, Linaro Limited
*
* SA8155P is an automotive variant of SM8150, with some minor changes.
* Most notably, the RPMhPD setup differs: MMCX and LCX/LMX rails are gone,
* though the cmd-db doesn't reflect that and access attemps result in a bite.
*/
#include "sm8150.dtsi"
&dispcc {
power-domains = <&rpmhpd SA8155P_CX>;
};
&mdss_dsi0 {
power-domains = <&rpmhpd SA8155P_CX>;
};
&mdss_dsi1 {
power-domains = <&rpmhpd SA8155P_CX>;
};
&mdss_mdp {
power-domains = <&rpmhpd SA8155P_CX>;
};
&remoteproc_slpi {
power-domains = <&rpmhpd SA8155P_CX>,
<&rpmhpd SA8155P_MX>;
};
&rpmhpd {
/*
* The bindings were crafted such that SA8155P PDs match their
* SM8150 counterparts to make it more maintainable and only
* necessitate adjusting entries that actually differ
*/
compatible = "qcom,sa8155p-rpmhpd";
};