From: Douglas Anderson <dianders@chromium.org>
To: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Vinod Koul <vkoul@kernel.org>,
Kiran Gunda <kgunda@codeaurora.org>,
Rajendra Nayak <rnayak@codeaurora.org>,
swboyd@chromium.org, mka@chromium.org,
Sandeep Maheswaram <sanm@codeaurora.org>,
Amit Kucheria <amit.kucheria@linaro.org>,
Maulik Shah <mkshah@codeaurora.org>,
Douglas Anderson <dianders@chromium.org>,
Taniya Das <tdas@codeaurora.org>,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Subject: [PATCH 7/7] arm64: dts: qcom: sc7180: Use 'ranges' in arm,armv7-timer-mem node
Date: Thu, 12 Dec 2019 11:35:43 -0800 [thread overview]
Message-ID: <20191212113540.7.Ia9bd3fca24ad34a5faaf1c3e58095c74b38abca1@changeid> (raw)
In-Reply-To: <20191212193544.80640-1-dianders@chromium.org>
Running `make dtbs_check` yells:
arch/arm64/boot/dts/qcom/sc7180-idp.dt.yaml: timer@17c20000: #size-cells:0:0: 1 was expected
It appears that someone was trying to assert the fact that sub-nodes
describing frames would never have a size that's more than 32-bits
big. That's certainly true in the case of sc7180.
I guess this is a hint that it's time to do the thing that nobody
seems to do but that "writing-bindings.txt" says we should all do.
Specifically it says: "DO use non-empty 'ranges' to limit the size of
child buses/devices". That means we should probably limit the
I believe that this patch is the way to do it and there should be no
bad side effects here. I believe that since we're far enough down
(not trying to describe an actual device, just some sub-pieces) that
this won't cause us to run into the problems that caused us to
increase the soc-level #address-cells and #size-cells to 2 in sdm845
in commit bede7d2dc8f3 ("arm64: dts: qcom: sdm845: Increase address
and size cells for soc").
I can at least confirm that "arch_mem_timer" seems to keep getting
interrupts in "/proc/interrupts" after this change.
Fixes: 90db71e48070 ("arm64: dts: sc7180: Add minimal dts/dtsi files for SC7180 soc")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
---
arch/arm64/boot/dts/qcom/sc7180.dtsi | 36 ++++++++++++++--------------
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index c671f0719d42..336cf65bdcc2 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -1206,59 +1206,59 @@ watchdog@17c10000 {
};
timer@17c20000{
- #address-cells = <2>;
- #size-cells = <2>;
- ranges;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0x17c21000 0x10000>;
compatible = "arm,armv7-timer-mem";
reg = <0 0x17c20000 0 0x1000>;
- frame@17c21000 {
+ frame@0 {
frame-number = <0>;
interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0 0x17c21000 0 0x1000>,
- <0 0x17c22000 0 0x1000>;
+ reg = <0x0000 0x1000>,
+ <0x1000 0x1000>;
};
- frame@17c23000 {
+ frame@2000 {
frame-number = <1>;
interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0 0x17c23000 0 0x1000>;
+ reg = <0x2000 0x1000>;
status = "disabled";
};
- frame@17c25000 {
+ frame@4000 {
frame-number = <2>;
interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0 0x17c25000 0 0x1000>;
+ reg = <0x4000 0x1000>;
status = "disabled";
};
- frame@17c27000 {
+ frame@6000 {
frame-number = <3>;
interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0 0x17c27000 0 0x1000>;
+ reg = <0x6000 0x1000>;
status = "disabled";
};
- frame@17c29000 {
+ frame@8000 {
frame-number = <4>;
interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0 0x17c29000 0 0x1000>;
+ reg = <0x8000 0x1000>;
status = "disabled";
};
- frame@17c2b000 {
+ frame@a000 {
frame-number = <5>;
interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0 0x17c2b000 0 0x1000>;
+ reg = <0xa000 0x1000>;
status = "disabled";
};
- frame@17c2d000 {
+ frame@c000 {
frame-number = <6>;
interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0 0x17c2d000 0 0x1000>;
+ reg = <0xc000 0x1000>;
status = "disabled";
};
};
--
2.24.1.735.g03f4e72817-goog
next prev parent reply other threads:[~2019-12-12 19:36 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-12 19:35 [PATCH 0/7] arm64: dts: sc7180: Make dtbs_check mostly happy Douglas Anderson
2019-12-12 19:35 ` [PATCH 1/7] arm64: dts: qcom: sc7180: Add SoC name to compatible Douglas Anderson
2019-12-12 21:55 ` Stephen Boyd
2019-12-12 19:35 ` [PATCH 2/7] arm64: dts: qcom: sc7180: Rename gic-its node to msi-controller Douglas Anderson
2019-12-12 21:56 ` Stephen Boyd
2019-12-17 6:27 ` Doug Anderson
2019-12-12 19:35 ` [PATCH 3/7] arm64: dts: qcom: sc7180: Add "#clock-cells" property to usb_1_ssphy Douglas Anderson
2019-12-12 21:56 ` Stephen Boyd
2019-12-12 19:35 ` [PATCH 4/7] arm64: dts: qcom: pm6150: Remove macro from unit name of adc-chan Douglas Anderson
2019-12-12 21:56 ` Stephen Boyd
2019-12-12 19:35 ` [PATCH 5/7] arm64: dts: qcom: sc7180: Avoid "memory" for cmd-db reserved-memory node Douglas Anderson
2019-12-12 22:00 ` Stephen Boyd
2019-12-12 23:18 ` Bjorn Andersson
2019-12-12 19:35 ` [PATCH 6/7] arm64: dts: qcom: sc7180: Avoid "phy" for USB QMP PHY wrapper Douglas Anderson
2019-12-12 21:59 ` Stephen Boyd
2019-12-12 19:35 ` Douglas Anderson [this message]
2019-12-12 21:55 ` [PATCH 7/7] arm64: dts: qcom: sc7180: Use 'ranges' in arm,armv7-timer-mem node Stephen Boyd
2019-12-17 6:14 ` Doug Anderson
2019-12-12 23:21 ` [PATCH 0/7] arm64: dts: sc7180: Make dtbs_check mostly happy Bjorn Andersson
2019-12-13 4:06 ` Rajendra Nayak
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