6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Luca Weiss luca.weiss@fairphone.com
[ Upstream commit 6da24ba932082bae110feb917a64bb54637fa7c0 ]
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 luca.weiss@fairphone.com Link: https://lore.kernel.org/r/20230919-fp5-initial-v2-1-14bb7cedadf5@fairphone.c... Signed-off-by: Bjorn Andersson andersson@kernel.org Stable-dep-of: 6897fac411db ("arm64: dts: qcom: sc7280: Make watchdog bark interrupt edge triggered") Signed-off-by: Sasha Levin sashal@kernel.org --- .../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/arm64/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 { }; };
+&lpass_aon { + status = "okay"; +}; + +&lpass_core { + status = "okay"; +}; + +&lpass_hm { + status = "okay"; +}; + +&lpasscc { + status = "okay"; +}; + +&pdc_reset { + status = "okay"; +}; + /* The PMIC PON code isn't compatible w/ how Chrome EC/BIOS handle things. */ &pmk8350_pon { status = "disabled"; @@ -84,6 +104,10 @@ &scm { dma-coherent; };
+&watchdog { + status = "okay"; +}; + &wifi { status = "okay";
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi index 91bb58c6b1a6..6f2a8f60856d 100644 --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi @@ -2255,6 +2255,7 @@ lpasscc: lpasscc@3000000 { clocks = <&gcc GCC_CFG_NOC_LPASS_CLK>; clock-names = "iface"; #clock-cells = <1>; + status = "reserved"; /* Owned by ADSP firmware */ };
lpass_rx_macro: codec@3200000 { @@ -2406,6 +2407,7 @@ lpass_aon: clock-controller@3380000 { clock-names = "bi_tcxo", "bi_tcxo_ao", "iface"; #clock-cells = <1>; #power-domain-cells = <1>; + status = "reserved"; /* Owned by ADSP firmware */ };
lpass_core: clock-controller@3900000 { @@ -2416,6 +2418,7 @@ lpass_core: clock-controller@3900000 { power-domains = <&lpass_hm LPASS_CORE_CC_LPASS_CORE_HM_GDSC>; #clock-cells = <1>; #power-domain-cells = <1>; + status = "reserved"; /* Owned by ADSP firmware */ };
lpass_cpu: audio@3987000 { @@ -2486,6 +2489,7 @@ lpass_hm: clock-controller@3c00000 { clock-names = "bi_tcxo"; #clock-cells = <1>; #power-domain-cells = <1>; + status = "reserved"; /* Owned by ADSP firmware */ };
lpass_ag_noc: interconnect@3c40000 { @@ -4199,6 +4203,7 @@ pdc_reset: reset-controller@b5e0000 { compatible = "qcom,sc7280-pdc-global"; reg = <0 0x0b5e0000 0 0x20000>; #reset-cells = <1>; + status = "reserved"; /* Owned by firmware */ };
tsens0: thermal-sensor@c263000 { @@ -5195,11 +5200,12 @@ msi-controller@17a40000 { }; };
- watchdog@17c10000 { + watchdog: watchdog@17c10000 { compatible = "qcom,apss-wdt-sc7280", "qcom,kpss-wdt"; reg = <0 0x17c10000 0 0x1000>; clocks = <&sleep_clk>; interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>; + status = "reserved"; /* Owned by Gunyah hyp */ };
timer@17c20000 {