* [PATCH v2] arm64: dts: sprd: sc9860: Simplify clock nodes
@ 2025-11-24 21:00 Rob Herring (Arm)
2025-11-25 13:50 ` patchwork-bot+linux-soc
0 siblings, 1 reply; 2+ messages in thread
From: Rob Herring (Arm) @ 2025-11-24 21:00 UTC (permalink / raw)
To: soc, Krzysztof Kozlowski, Conor Dooley, Orson Zhai, Baolin Wang,
Chunyan Zhang
Cc: devicetree, linux-kernel
The various "syscon" nodes in SC9860 are only referenced by clock
provider nodes in a 1:1 relationship, and nothing else references the
"syscon" nodes. There's no apparent reason for this split. The 2 nodes
can simply be merged into 1 node. The clock driver has supported using
either "reg" or "sprd,syscon" to access registers from the start, so
there shouldn't be any compatibility issues.
With this, DT schema warnings for missing a specific compatible with
"syscon" and non-MMIO devices on "simple-bus" are fixed.
Reviewed-by: Chunyan Zhang <zhang.lyra@gmail.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
Arnd, Please apply directly.
v2:
- Correct some indentation
---
arch/arm64/boot/dts/sprd/sc9860.dtsi | 62 ----------------------------
arch/arm64/boot/dts/sprd/whale2.dtsi | 54 ++++++++++++++++--------
2 files changed, 36 insertions(+), 80 deletions(-)
diff --git a/arch/arm64/boot/dts/sprd/sc9860.dtsi b/arch/arm64/boot/dts/sprd/sc9860.dtsi
index d2456d633c39..864ef0a17425 100644
--- a/arch/arm64/boot/dts/sprd/sc9860.dtsi
+++ b/arch/arm64/boot/dts/sprd/sc9860.dtsi
@@ -184,20 +184,6 @@ gic: interrupt-controller@12001000 {
| IRQ_TYPE_LEVEL_HIGH)>;
};
- pmu_gate: pmu-gate {
- compatible = "sprd,sc9860-pmu-gate";
- sprd,syscon = <&pmu_regs>; /* 0x402b0000 */
- clocks = <&ext_26m>;
- #clock-cells = <1>;
- };
-
- pll: pll {
- compatible = "sprd,sc9860-pll";
- sprd,syscon = <&ana_regs>; /* 0x40400000 */
- clocks = <&pmu_gate 0>;
- #clock-cells = <1>;
- };
-
ap_clk: clock-controller@20000000 {
compatible = "sprd,sc9860-ap-clk";
reg = <0 0x20000000 0 0x400>;
@@ -214,19 +200,6 @@ aon_prediv: aon-prediv@402d0000 {
#clock-cells = <1>;
};
- apahb_gate: apahb-gate {
- compatible = "sprd,sc9860-apahb-gate";
- sprd,syscon = <&ap_ahb_regs>; /* 0x20210000 */
- clocks = <&aon_prediv 0>;
- #clock-cells = <1>;
- };
-
- aon_gate: aon-gate {
- compatible = "sprd,sc9860-aon-gate";
- sprd,syscon = <&aon_regs>; /* 0x402e0000 */
- clocks = <&aon_prediv 0>;
- #clock-cells = <1>;
- };
aonsecure_clk: clock-controller@40880000 {
compatible = "sprd,sc9860-aonsecure-clk";
@@ -235,13 +208,6 @@ aonsecure_clk: clock-controller@40880000 {
#clock-cells = <1>;
};
- agcp_gate: agcp-gate {
- compatible = "sprd,sc9860-agcp-gate";
- sprd,syscon = <&agcp_regs>; /* 0x415e0000 */
- clocks = <&aon_prediv 0>;
- #clock-cells = <1>;
- };
-
gpu_clk: clock-controller@60200000 {
compatible = "sprd,sc9860-gpu-clk";
reg = <0 0x60200000 0 0x400>;
@@ -256,13 +222,6 @@ vsp_clk: clock-controller@61000000 {
#clock-cells = <1>;
};
- vsp_gate: vsp-gate {
- compatible = "sprd,sc9860-vsp-gate";
- sprd,syscon = <&vsp_regs>; /* 0x61100000 */
- clocks = <&vsp_clk 0>;
- #clock-cells = <1>;
- };
-
cam_clk: clock-controller@62000000 {
compatible = "sprd,sc9860-cam-clk";
reg = <0 0x62000000 0 0x4000>;
@@ -270,13 +229,6 @@ cam_clk: clock-controller@62000000 {
#clock-cells = <1>;
};
- cam_gate: cam-gate {
- compatible = "sprd,sc9860-cam-gate";
- sprd,syscon = <&cam_regs>; /* 0x62100000 */
- clocks = <&cam_clk 0>;
- #clock-cells = <1>;
- };
-
disp_clk: clock-controller@63000000 {
compatible = "sprd,sc9860-disp-clk";
reg = <0 0x63000000 0 0x400>;
@@ -284,20 +236,6 @@ disp_clk: clock-controller@63000000 {
#clock-cells = <1>;
};
- disp_gate: disp-gate {
- compatible = "sprd,sc9860-disp-gate";
- sprd,syscon = <&disp_regs>; /* 0x63100000 */
- clocks = <&disp_clk 0>;
- #clock-cells = <1>;
- };
-
- apapb_gate: apapb-gate {
- compatible = "sprd,sc9860-apapb-gate";
- sprd,syscon = <&ap_apb_regs>; /* 0x70b00000 */
- clocks = <&ap_clk 0>;
- #clock-cells = <1>;
- };
-
funnel@10001000 { /* SoC Funnel */
compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
reg = <0 0x10001000 0 0x1000>;
diff --git a/arch/arm64/boot/dts/sprd/whale2.dtsi b/arch/arm64/boot/dts/sprd/whale2.dtsi
index a551e14ce826..2ecaa56001b8 100644
--- a/arch/arm64/boot/dts/sprd/whale2.dtsi
+++ b/arch/arm64/boot/dts/sprd/whale2.dtsi
@@ -18,49 +18,67 @@ soc: soc {
#size-cells = <2>;
ranges;
- ap_ahb_regs: syscon@20210000 {
- compatible = "syscon";
+ apahb_gate: clock-controller@20210000 {
reg = <0 0x20210000 0 0x10000>;
+ compatible = "sprd,sc9860-apahb-gate";
+ clocks = <&aon_prediv 0>;
+ #clock-cells = <1>;
};
- pmu_regs: syscon@402b0000 {
- compatible = "syscon";
+ pmu_gate: clock-controller@402b0000 {
reg = <0 0x402b0000 0 0x10000>;
+ compatible = "sprd,sc9860-pmu-gate";
+ clocks = <&ext_26m>;
+ #clock-cells = <1>;
};
- aon_regs: syscon@402e0000 {
- compatible = "syscon";
+ aon_gate: clock-controller@402e0000 {
reg = <0 0x402e0000 0 0x10000>;
+ compatible = "sprd,sc9860-aon-gate";
+ clocks = <&aon_prediv 0>;
+ #clock-cells = <1>;
};
- ana_regs: syscon@40400000 {
- compatible = "syscon";
+ pll: clock-controller@40400000 {
reg = <0 0x40400000 0 0x10000>;
+ compatible = "sprd,sc9860-pll";
+ clocks = <&pmu_gate 0>;
+ #clock-cells = <1>;
};
- agcp_regs: syscon@415e0000 {
- compatible = "syscon";
+ agcp_gate: clock-controller@415e0000 {
reg = <0 0x415e0000 0 0x1000000>;
+ compatible = "sprd,sc9860-agcp-gate";
+ clocks = <&aon_prediv 0>;
+ #clock-cells = <1>;
};
- vsp_regs: syscon@61100000 {
- compatible = "syscon";
+ vsp_gate: clock-controller@61100000 {
reg = <0 0x61100000 0 0x10000>;
+ compatible = "sprd,sc9860-vsp-gate";
+ clocks = <&vsp_clk 0>;
+ #clock-cells = <1>;
};
- cam_regs: syscon@62100000 {
- compatible = "syscon";
+ cam_gate: clock-controller@62100000 {
reg = <0 0x62100000 0 0x10000>;
+ compatible = "sprd,sc9860-cam-gate";
+ clocks = <&cam_clk 0>;
+ #clock-cells = <1>;
};
- disp_regs: syscon@63100000 {
- compatible = "syscon";
+ disp_gate: clock-controller@63100000 {
reg = <0 0x63100000 0 0x10000>;
+ compatible = "sprd,sc9860-disp-gate";
+ clocks = <&disp_clk 0>;
+ #clock-cells = <1>;
};
- ap_apb_regs: syscon@70b00000 {
- compatible = "syscon";
+ apapb_gate: clock-controller@70b00000 {
reg = <0 0x70b00000 0 0x40000>;
+ compatible = "sprd,sc9860-apapb-gate";
+ clocks = <&ap_clk 0>;
+ #clock-cells = <1>;
};
ap-apb@70000000 {
--
2.51.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] arm64: dts: sprd: sc9860: Simplify clock nodes
2025-11-24 21:00 [PATCH v2] arm64: dts: sprd: sc9860: Simplify clock nodes Rob Herring (Arm)
@ 2025-11-25 13:50 ` patchwork-bot+linux-soc
0 siblings, 0 replies; 2+ messages in thread
From: patchwork-bot+linux-soc @ 2025-11-25 13:50 UTC (permalink / raw)
To: Rob Herring; +Cc: soc
Hello:
This patch was applied to soc/soc.git (for-next)
by Arnd Bergmann <arnd@arndb.de>:
On Mon, 24 Nov 2025 15:00:31 -0600 you wrote:
> The various "syscon" nodes in SC9860 are only referenced by clock
> provider nodes in a 1:1 relationship, and nothing else references the
> "syscon" nodes. There's no apparent reason for this split. The 2 nodes
> can simply be merged into 1 node. The clock driver has supported using
> either "reg" or "sprd,syscon" to access registers from the start, so
> there shouldn't be any compatibility issues.
>
> [...]
Here is the summary with links:
- [v2] arm64: dts: sprd: sc9860: Simplify clock nodes
https://git.kernel.org/soc/soc/c/d86a4e645859
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
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