Thread (9 messages) 9 messages, 2 authors, 2021-02-08

Re: [PATCH v4 3/3] arm64: dts: reset: add microchip sparx5 switch reset driver

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From: Rob Herring <robh@kernel.org>
Date: 2021-02-06 04:38:45
Also in: linux-devicetree, lkml

On Wed, Jan 20, 2021 at 09:19:21AM +0100, Steen Hegelund wrote:
This provides reset driver support for the Microchip Sparx5 PCB134 and
PCB135 reference boards.
This isn't a compatible change. You need an explanation why that's okay 
if that's intended.
quoted hunk ↗ jump to hunk
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
---
 arch/arm64/boot/dts/microchip/sparx5.dtsi | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi b/arch/arm64/boot/dts/microchip/sparx5.dtsi
index 380281f312d8..4edbb9fcdce0 100644
--- a/arch/arm64/boot/dts/microchip/sparx5.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi
@@ -132,9 +132,17 @@ mux: mux-controller {
 			};
 		};
 
-		reset@611010008 {
-			compatible = "microchip,sparx5-chip-reset";
-			reg = <0x6 0x11010008 0x4>;
+		gcb_ctrl: syscon@611010000 {
+			compatible = "microchip,sparx5-gcb-syscon", "syscon";
+			reg = <0x6 0x11010000 0x10000>;
+		};
+
+		reset: reset-controller@0 {
+			compatible = "microchip,sparx5-switch-reset";
+			reg = <0x6 0x0 0x0>;
Your register length is 0?
+			#reset-cells = <1>;
+			cpu-syscon = <&cpu_ctrl>;
Can't you accomplish the same thing adding these to 
"microchip,sparx5-chip-reset"? Or possibly as a child node.

Define nodes based on h/w blocks, not as containers of things you happen 
to want for some driver.
+			gcb-syscon = <&gcb_ctrl>;
 		};
 
 		uart0: serial@600100000 {
-- 
2.29.2
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