[PATCH v5 4/5] ARM: tegra: Add efuse and apbmisc bindings
From: Stephen Warren <hidden>
Date: 2014-05-29 19:13:42
Also in:
linux-tegra, lkml
On 05/28/2014 06:54 AM, Peter De Schrijver wrote:
Add efuse and apbmisc bindings for Tegra20, Tegra30, Tegra114 and Tegra124. Signed-off-by: Peter De Schrijver <redacted> --- .../devicetree/bindings/fuse/fuse-tegra.txt | 30 ++++++++++++++++++++ .../devicetree/bindings/misc/nvidia,apbmisc.txt | 13 ++++++++
Please name these files according to the compatible value, like all the other Tegra bindings. So, nvidia,tegra20-efuse.txt and nvidia,tegra20-apbmisc.txt.
arch/arm/boot/dts/tegra114.dtsi | 12 ++++++++ arch/arm/boot/dts/tegra124.dtsi | 12 ++++++++ arch/arm/boot/dts/tegra20.dtsi | 12 ++++++++ arch/arm/boot/dts/tegra30.dtsi | 12 ++++++++
It's a bit odd to mix in the .dtsi changes in the same patch as the binding doc.
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diff --git a/Documentation/devicetree/bindings/fuse/fuse-tegra.txt b/Documentation/devicetree/bindings/fuse/fuse-tegra.txt
+- compatible : should be: + "nvidia,tegra20-efuse" + "nvidia,tegra30-efuse" + "nvidia,tegra114-efuse" + "nvidia,tegra124-efuse" + Details: + nvidia,tegra20-efuse: Tegra20 requires using APB DMA to read the fuse data + due to a hardware bug. Tegra20 also lacks certain information which is + available in later generations such as fab code, lot code, wafer id,.. + nvidia,tegra30-efuse, nvidia,tegra114-efuse and nvidia,tegra124-efuse: + The differences between these SoCs are the size of the efuse array, + the location of the spare (OEM programmable) bits and the location of + the speedo data.
I suppose it doesn't hurt, but I don't think we need any of the "Details" section here.
+- clocks: Should contain a pointer to the fuse clock.
Please require clock-names so we don't need a mix of index-/name-based lookups in the future. Please follow the same wording as existing Tegra binding docs that use clocks. For example: - clocks : Must contain an entry for each entry in clock-names. See ../clocks/clock-bindings.txt for details. - clock-names : Must include the following entries: - d_audio - apbif Are there no PMC reset signals fed into the fuse block?
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diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
+ apbmisc at 0x70000800 {The unit address in the DT nod name should not contain "0x". Same for other .dtsi files.
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diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
+ apbmisc at 0x70000800 {Tegra124 uses #address-cells=<2>, so the unit address in the node name needs to follow that. Hence, apbmisc at 0,70000800.
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diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
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@@ -236,6 +236,12 @@ interrupt-controller; }; + apbmisc at 0x70000800 { + compatible = "nvidia,tegra20-apbmisc";
Indentation looks odd here. Mix of TABs/spaces perhaps?