linux-kernel - Re: [PATCH 0/3] SC7180 MDSS core reset

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Message-Id: <176894531206.1201519.7083808409439106818.robh@kernel.org>
Date: Tue, 20 Jan 2026 15:45:17 -0600
From: Rob Herring <robh@...nel.org>
To: Konrad Dybcio <konradybcio@...nel.org>
Cc: Taniya Das <quic_tdas@...cinc.com>, linux-kernel@...r.kernel.org, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>, linux-clk@...r.kernel.org, 
 Kalyan Thota <quic_kalyant@...cinc.com>, linux-arm-msm@...r.kernel.org, 
 Val Packett <val@...kett.cool>, cros-qcom-dts-watchers@...omium.org, 
 Michael Turquette <mturquette@...libre.com>, devicetree@...r.kernel.org, 
 Conor Dooley <conor+dt@...nel.org>, 
 Harigovindan P <harigovi@...eaurora.org>, Stephen Boyd <sboyd@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Douglas Anderson <dianders@...omium.org>
Subject: Re: [PATCH 0/3] SC7180 MDSS core reset


On Tue, 20 Jan 2026 12:19:24 +0100, Konrad Dybcio wrote:
> Add the missing reset for the display subsystem and wire it up, so that
> drivers can consume it.
> 
> Compile-tested only.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> ---
> Konrad Dybcio (3):
>       dt-bindings: clock: qcom,dispcc-sc7180: Define MDSS resets
>       clk: qcom: dispcc-sc7180: Add missing MDSS resets
>       arm64: dts: qcom: sc7180: Add missing MDSS core reset
> 
>  arch/arm64/boot/dts/qcom/sc7180.dtsi           | 2 ++
>  drivers/clk/qcom/dispcc-sc7180.c               | 8 ++++++++
>  include/dt-bindings/clock/qcom,dispcc-sc7180.h | 7 ++++++-
>  3 files changed, 16 insertions(+), 1 deletion(-)
> ---
> base-commit: 46fe65a2c28ecf5df1a7475aba1f08ccf4c0ac1b
> change-id: 20260120-topic-7180_dispcc_bcr-f7ac25c21f89
> 
> Best regards,
> --
> Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> 
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


This patch series was applied (using b4) to base:
 Base: 46fe65a2c28ecf5df1a7475aba1f08ccf4c0ac1b (use --merge-base to override)

If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)


Warnings in base: 429
Warnings after series: 164

New warnings running 'make CHECK_DTBS=y for arch/arm64/boot/dts/qcom/' for 20260120-topic-7180_dispcc_bcr-v1-0-0b1b442156c3@....qualcomm.com:

Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-idp.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r3.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar-r2.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar-r3.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar-r4.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-kingoftown.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r3-lte.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1-lte.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1-lte.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r3.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1-kb.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r9.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r3-lte.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r9-kb.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r9-lte.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r10.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r10-kb.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-limozeen-r4.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r3-kb.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-limozeen-r9.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-limozeen-r10.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-limozeen-nots-r4.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-limozeen-nots-r5.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-limozeen-nots-r10.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r10-lte.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-limozeen-nots-r9.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pazquel-lte-parade.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pazquel-lte-ti.dtb] Error 1
FATAL ERROR: FATAL ERROR: Syntax error parsing input tree
Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pazquel-ti.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pazquel-parade.dtb] Error 1
Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom-r2.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom-r2-lte.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom-r1.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom-r1-lte.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pazquel360-lte.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom-r3.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom-r3-lte.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-quackingstick-r0.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-pazquel360-wifi.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-wormdingler-rev1-boe.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-quackingstick-r0-lte.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-wormdingler-rev1-inx.dtb] Error 1
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-wormdingler-rev1-inx-rt5682s.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-r1-lte.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-r1.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sm7125-xiaomi-curtana.dtb] Error 1
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
Lexical error: arch/arm64/boot/dts/qcom/sc7180.dtsi:3224.22-42 Unexpected 'DISPCC_MDSS_CORE_BCR'
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sm7125-xiaomi-joyeuse.dtb] Error 1
FATAL ERROR: Syntax error parsing input tree
make[5]: *** [scripts/Makefile.dtbs:142: arch/arm64/boot/dts/qcom/sc7180-trogdor-wormdingler-rev1-boe-rt5682s.dtb] Error 1
make[5]: Target 'arch/arm64/boot/dts/qcom/' not remade because of errors.
make[4]: *** [scripts/Makefile.build:544: arch/arm64/boot/dts/qcom] Error 2
make[4]: Target 'arch/arm64/boot/dts/qcom/' not remade because of errors.
make[3]: *** [scripts/Makefile.build:544: arch/arm64/boot/dts] Error 2
make[3]: Target 'arch/arm64/boot/dts/qcom/' not remade because of errors.
make[2]: *** [scripts/Makefile.build:544: arch/arm64] Error 2
make[2]: Target 'arch/arm64/boot/dts/qcom/' not remade because of errors.
make[1]: *** [/home/rob/proj/linux-dt-testing/Makefile:2080: .] Error 2
make[1]: Target 'arch/arm64/boot/dts/qcom/' not remade because of errors.
make: *** [Makefile:248: __sub-make] Error 2
make: Target 'arch/arm64/boot/dts/qcom/' not remade because of errors.