Re: [PATCH 1/2] ARM: dts: add device tree source for imx6sx SoC
From: Mark Rutland <hidden>
Date: 2014-02-19 17:42:36
+ intc: interrupt-controller@00a01000 {
+ compatible = "arm,cortex-a9-gic";
+ #interrupt-cells = <3>;
+ #address-cells = <1>;
+ #size-cells = <1>;Any reason for the #address-cells and #size-cells? The node has no children, and I don't see an interrupt-map.
+ interrupt-controller;
+ reg = <0x00a01000 0x1000>,
+ <0x00a00100 0x100>;
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ckil {
+ compatible = "fsl,imx-ckil", "fixed-clock";
+ clock-frequency = <32768>;
+ };
+
+ osc {
+ compatible = "fsl,imx-osc", "fixed-clock";
+ clock-frequency = <24000000>;
+ };
+ };What is this clocks container node? It has no compatible property. The children have no reg entries and thus #address-cells and #size cells are useless. Why have this at all? Why not put the clocks directly under the root? [...]
+ anatop: anatop@020c8000 {
+ compatible = "fsl,imx6sx-anatop", "fsl,imx6q-anatop",
+ "syscon", "simple-bus";NAK. That compatible list makes _no_ sense. Why are both simple-bus and syscon there?
+ reg = <0x020c8000 0x1000>; + interrupts = <0 49 0x04 0 54 0x04 0 127 0x04>;
Please bracket list entries individually. It's not clear where one interrupt ends and the next begins.
+ };
+
+ snvs@020cc000 {
+ compatible = "fsl,sec-v4.0-mon", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x020cc000 0x4000>;
+
+ snvs-rtc-lp@34 {
+ compatible = "fsl,sec-v4.0-mon-rtc-lp";
+ reg = <0x34 0x58>;
+ interrupts = <0 19 0x04 0 20 0x04>;
+ };
+ };The binding document mentions nothing about fsl,sec-v4.0-mon being a bus, let alone one compatible with simple-bus. Are the child nodes usable in isolation, even if the parent node weren't probed?
+ sdma: sdma@020ec000 {
+ compatible = "fsl,imx6q-sdma", "fsl,imx35-sdma";
+ reg = <0x020ec000 0x4000>;
+ interrupts = <0 2 0x04>;
+ clocks = <&clks IMX6SX_CLK_SDMA>, <&clks IMX6SX_CLK_SDMA>;
+ clock-names = "ipg", "ahb";
+ #dma-cells = <3>;
+ fsl,sdma-ram-script-name = "imx/sdma/sdma-imx6sx.bin";This is insane. Why is this path in the DT at all? Mark. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html