Re: [PATCH 1/6] arm64: dts: msm8992 SoC and LG Bullhead (Nexus 5X) support

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On 2016-10-27 5:11 PM, Stephen Boyd wrote:
On 10/25, Jeremy McNicoll wrote:
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 5dd05de..439e40e 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -1,6 +1,8 @@
-dtb-$(CONFIG_ARCH_QCOM)	+= apq8016-sbc.dtb msm8916-mtp.dtb
-dtb-$(CONFIG_ARCH_QCOM)	+= msm8996-mtp.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= apq8016-sbc.dtb

This is unrelated. Perhaps make another patch to "correct" it.


I rolled it into this change series as I was asked in previous feedback
to make them 1 per line.

 dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-db820c.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-mtp.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= msm8992-bullhead-rev-101.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= msm8996-mtp.dtb

 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)
diff --git a/arch/arm64/boot/dts/qcom/msm8992.dtsi b/arch/arm64/boot/dts/qcom/msm8992.dtsi
new file mode 100644
index 0000000..8bbf4f3
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/msm8992.dtsi
@@ -0,0 +1,191 @@
+
+	soc: soc {

Do we need the soc phandle? If it isn't used we should leave it
out.


What about doing something like:

8992soc: soc {

This will allow it to be overriden.  Or would it be best to add it when
someone wants / needs to override it.

+
+		clock_gcc: qcom,gcc@fc400000 {

s/qcom,gcc/clock-controller/


done.


Also we typically just give it a "gcc" phandle to be terse.

is clock_gcc not a little more descriptive from a human perspective?

Sometimes being terse is hard for humans to parse.


+			compatible = "qcom,gcc-8994";

qcom,gcc-msm8994


agreed.



+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			#power-domain-cells = <1>;
+			reg = <0xfc400000 0x2000>;
+		};
+	};
+
+	memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+
+		device_type = "memory";
+		reg = <0 0 0 0>; // bootloader will update
+	};
+
+	clocks {
+		xo_board: xo_board {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <19200000>;
+			clock-output-names = "xo_board";
+		};
+
+		sleep_clk: sleep_clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+			clock-output-names = "sleep_clk";

clock-output-names can be removed because we use the same string
as the node name.


one less line works for me.

-jeremy
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