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[212.78.193.212]) by smtp.gmail.com with ESMTPSA id dn22-20020a05640222f600b00532c1dfe8ecsm635878edb.66.2023.09.19.05.46.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Sep 2023 05:46:04 -0700 (PDT) From: Luca Weiss Date: Tue, 19 Sep 2023 14:45:55 +0200 Subject: [PATCH v2 1/7] arm64: dts: qcom: sc7280: Mark some nodes as 'reserved' MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230919-fp5-initial-v2-1-14bb7cedadf5@fairphone.com> References: <20230919-fp5-initial-v2-0-14bb7cedadf5@fairphone.com> In-Reply-To: <20230919-fp5-initial-v2-0-14bb7cedadf5@fairphone.com> To: cros-qcom-dts-watchers@chromium.org, Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Srinivas Kandagatla , Linus Walleij , "Rafael J. Wysocki" , Viresh Kumar Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, Luca Weiss X-Mailer: b4 0.12.3 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org With the standard Qualcomm TrustZone setup, components such as lpasscc, pdc_reset and watchdog shouldn't be touched by Linux. Mark them with the status 'reserved' and reenable them in the chrome-common dtsi. Signed-off-by: Luca Weiss --- arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi | 24 ++++++++++++++++++= ++++ arch/arm64/boot/dts/qcom/sc7280.dtsi | 8 +++++++- 2 files changed, 31 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi b/arch/arm6= 4/boot/dts/qcom/sc7280-chrome-common.dtsi index 2e1cd219fc18..5d462ae14ba1 100644 --- a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi @@ -46,6 +46,26 @@ wpss_mem: memory@9ae00000 { }; }; =20 +&lpass_aon { + status =3D "okay"; +}; + +&lpass_core { + status =3D "okay"; +}; + +&lpass_hm { + status =3D "okay"; +}; + +&lpasscc { + status =3D "okay"; +}; + +&pdc_reset { + status =3D "okay"; +}; + /* The PMIC PON code isn't compatible w/ how Chrome EC/BIOS handle things.= */ &pmk8350_pon { status =3D "disabled"; @@ -84,6 +104,10 @@ &scm { dma-coherent; }; =20 +&watchdog { + status =3D "okay"; +}; + &wifi { status =3D "okay"; =20 diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qco= m/sc7280.dtsi index 2af42d0ad99e..3f7f5c99eaf8 100644 --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi @@ -2316,6 +2316,7 @@ lpasscc: lpasscc@3000000 { clocks =3D <&gcc GCC_CFG_NOC_LPASS_CLK>; clock-names =3D "iface"; #clock-cells =3D <1>; + status =3D "reserved"; /* Owned by ADSP firmware */ }; =20 lpass_rx_macro: codec@3200000 { @@ -2467,6 +2468,7 @@ lpass_aon: clock-controller@3380000 { clock-names =3D "bi_tcxo", "bi_tcxo_ao", "iface"; #clock-cells =3D <1>; #power-domain-cells =3D <1>; + status =3D "reserved"; /* Owned by ADSP firmware */ }; =20 lpass_core: clock-controller@3900000 { @@ -2477,6 +2479,7 @@ lpass_core: clock-controller@3900000 { power-domains =3D <&lpass_hm LPASS_CORE_CC_LPASS_CORE_HM_GDSC>; #clock-cells =3D <1>; #power-domain-cells =3D <1>; + status =3D "reserved"; /* Owned by ADSP firmware */ }; =20 lpass_cpu: audio@3987000 { @@ -2547,6 +2550,7 @@ lpass_hm: clock-controller@3c00000 { clock-names =3D "bi_tcxo"; #clock-cells =3D <1>; #power-domain-cells =3D <1>; + status =3D "reserved"; /* Owned by ADSP firmware */ }; =20 lpass_ag_noc: interconnect@3c40000 { @@ -4243,6 +4247,7 @@ pdc_reset: reset-controller@b5e0000 { compatible =3D "qcom,sc7280-pdc-global"; reg =3D <0 0x0b5e0000 0 0x20000>; #reset-cells =3D <1>; + status =3D "reserved"; /* Owned by firmware */ }; =20 tsens0: thermal-sensor@c263000 { @@ -5239,11 +5244,12 @@ msi-controller@17a40000 { }; }; =20 - watchdog@17c10000 { + watchdog: watchdog@17c10000 { compatible =3D "qcom,apss-wdt-sc7280", "qcom,kpss-wdt"; reg =3D <0 0x17c10000 0 0x1000>; clocks =3D <&sleep_clk>; interrupts =3D ; + status =3D "reserved"; /* Owned by Gunyah hyp */ }; =20 timer@17c20000 { --=20 2.42.0