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ARM: dts: aspeed-g6: add AST2600 I3C nodes and bindings

PATCH In review Dawid Glazik 3 participants 9 messages Apr 24 – Jun 5

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v4 cover ARM: dts: aspeed-g6: add AST2600 I3C nodes and bindings

This series reworks and resubmits AST2600 I3C DTS updates that were originally posted in 2024, but stalled without further upstream progress.[1] The series was rebased onto the current tree and merge conflicts were resolved.

The patches first move I2C controller nodes under the APB simple-bus for layout consistency, then document aspeed,ast2600-i3c-global in the syscon binding, and finally add AST2600 I3C controller nodes in aspeed-g6.dtsi.

Jeremy agreed in a separate email thread that I can continue this series under my authorship.

Dawid Glazik (3):
ARM: dts: aspeed-g6: move i2c controllers directly into apb node
dt-bindings: mfd: syscon: add aspeed,ast2600-i3c-global compatible
ARM: dts: aspeed-g6: Add nodes for i3c controllers

 .../devicetree/bindings/mfd/syscon.yaml       |   2 +
 arch/arm/boot/dts/aspeed/aspeed-g6.dtsi       | 543 ++++++++++--------
 2 files changed, 318 insertions(+), 227 deletions(-)

base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f

Signature · 1 line
2.43.0
#1 lore raw

PATCH v4 1/3 ARM: dts: aspeed-g6: move i2c controllers directly into apb node

We currently have the apb's mapping of the i2c controller space as a labelled mostly-empty node:

  apb {
    i2c: bus@1e78a000 {
      ranges = <...>;
    };
  }

... and then define the contents of the i2c block later:

  i2c: {
    i2c0: i2c-bus@80 {
      reg = <0x80 0x80>;
    };
    i2c1: i2c-bus@100 {
      reg = <0x100 0x80>;
    };
  }

Krzysztof mentions[1] that isn't convention though, with the top-level simple-bus being empty and linked via the label. So, drop the label usage and move the i2c bus definition into the simple-bus node directly under the apb:

  apb {
     bus@1e78a000 {
      ranges = <...>;
      i2c0: i2c-bus@80 {
        reg = <0x80 0x80>;
      };
      i2c1: i2c-bus@100 {
        reg = <0x100 0x80>;
      };
    };

}

This will allow us to be consistent when we add new definitions for the i3c nodes, which would require the latter format.

---
v3:
- pick up series after two years
- rebase on top of latest tree and solve conflicts
- as agreed with Jeremy off-list, he said I can take authorship of this going forward
v2:
- new patch: reorganise i2c nodes before adding new-format i3c nodes

---
 arch/arm/boot/dts/aspeed/aspeed-g6.dtsi | 452 ++++++++++++------------
 1 file changed, 225 insertions(+), 227 deletions(-)
arch/arm/boot/dts/aspeed/aspeed-g6.dtsi +225 -227
index 189bc3bbb47c..f5641128614f 100644
@@ -835,11 +835,235 @@ uart9: serial@1e790300 {
 				status = "disabled";
 			};
 
-			i2c: bus@1e78a000 {
+			bus@1e78a000 {
 				compatible = "simple-bus";
 				#address-cells = <1>;
 				#size-cells = <1>;
 				ranges = <0 0x1e78a000 0x1000>;
+
+				i2c0: i2c@80 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x80 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c1_default>;
+					status = "disabled";
+				};
+
+				i2c1: i2c@100 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x100 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c2_default>;
+					status = "disabled";
+				};
+
+				i2c2: i2c@180 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x180 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c3_default>;
+					status = "disabled";
+				};
+
+				i2c3: i2c@200 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x200 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c4_default>;
+					status = "disabled";
+				};
+
+				i2c4: i2c@280 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x280 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c5_default>;
+					status = "disabled";
+				};
+
+				i2c5: i2c@300 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x300 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c6_default>;
+					status = "disabled";
+				};
+
+				i2c6: i2c@380 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x380 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c7_default>;
+					status = "disabled";
+				};
+
+				i2c7: i2c@400 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x400 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c8_default>;
+					status = "disabled";
+				};
+
+				i2c8: i2c@480 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x480 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c9_default>;
+					status = "disabled";
+				};
+
+				i2c9: i2c@500 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x500 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c10_default>;
+					status = "disabled";
+				};
+
+				i2c10: i2c@580 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x580 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c11_default>;
+					status = "disabled";
+				};
+
+				i2c11: i2c@600 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x600 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c12_default>;
+					status = "disabled";
+				};
+
+				i2c12: i2c@680 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x680 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c13_default>;
+					status = "disabled";
+				};
+
+				i2c13: i2c@700 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x700 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c14_default>;
+					status = "disabled";
+				};
+
+				i2c14: i2c@780 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x780 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c15_default>;
+					status = "disabled";
+				};
+
+				i2c15: i2c@800 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0x800 0x80>;
+					compatible = "aspeed,ast2600-i2c-bus";
+					clocks = <&syscon ASPEED_CLK_APB2>;
+					resets = <&syscon ASPEED_RESET_I2C>;
+					interrupts = <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
+					bus-frequency = <100000>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i2c16_default>;
+					status = "disabled";
+				};
 			};
 
 			fsim0: fsi@1e79b000 {
@@ -870,229 +1094,3 @@ fsim1: fsi@1e79b100 {
 };
 
 #include "aspeed-g6-pinctrl.dtsi"
-
-&i2c {
-	i2c0: i2c@80 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x80 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c1_default>;
-		status = "disabled";
-	};
-
-	i2c1: i2c@100 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x100 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c2_default>;
-		status = "disabled";
-	};
-
-	i2c2: i2c@180 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x180 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c3_default>;
-		status = "disabled";
-	};
-
-	i2c3: i2c@200 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x200 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c4_default>;
-		status = "disabled";
-	};
-
-	i2c4: i2c@280 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x280 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c5_default>;
-		status = "disabled";
-	};
-
-	i2c5: i2c@300 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x300 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c6_default>;
-		status = "disabled";
-	};
-
-	i2c6: i2c@380 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x380 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c7_default>;
-		status = "disabled";
-	};
-
-	i2c7: i2c@400 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x400 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c8_default>;
-		status = "disabled";
-	};
-
-	i2c8: i2c@480 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x480 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c9_default>;
-		status = "disabled";
-	};
-
-	i2c9: i2c@500 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x500 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c10_default>;
-		status = "disabled";
-	};
-
-	i2c10: i2c@580 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x580 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c11_default>;
-		status = "disabled";
-	};
-
-	i2c11: i2c@600 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x600 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c12_default>;
-		status = "disabled";
-	};
-
-	i2c12: i2c@680 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x680 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c13_default>;
-		status = "disabled";
-	};
-
-	i2c13: i2c@700 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x700 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c14_default>;
-		status = "disabled";
-	};
-
-	i2c14: i2c@780 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x780 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c15_default>;
-		status = "disabled";
-	};
-
-	i2c15: i2c@800 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		reg = <0x800 0x80>;
-		compatible = "aspeed,ast2600-i2c-bus";
-		clocks = <&syscon ASPEED_CLK_APB2>;
-		resets = <&syscon ASPEED_RESET_I2C>;
-		interrupts = <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
-		bus-frequency = <100000>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_i2c16_default>;
-		status = "disabled";
-	};
-};
Signature · 1 line
2.43.0
#2 lore raw

PATCH v4 2/3 dt-bindings: mfd: syscon: add aspeed,ast2600-i3c-global compatible

In reply to Dawid Glazik

Add aspeed,ast2600-i3c-global to the syscon binding compatible lists to document the AST2600 I3C global register syscon node.

---
 Documentation/devicetree/bindings/mfd/syscon.yaml | 2 ++
 1 file changed, 2 insertions(+)
Documentation/devicetree/bindings/mfd/syscon.yaml +2 -0
index e57add2bacd3..50c07038122f 100644
@@ -49,6 +49,7 @@ select:
           - apm,xgene-mcb
           - apm,xgene-rb
           - apm,xgene-scu
+          - aspeed,ast2600-i3c-global
           - atmel,sama5d2-sfrbu
           - atmel,sama5d3-nfc-io
           - atmel,sama5d3-sfrbu
@@ -161,6 +162,7 @@ properties:
               - apm,xgene-mcb
               - apm,xgene-rb
               - apm,xgene-scu
+              - aspeed,ast2600-i3c-global
               - atmel,sama5d2-sfrbu
               - atmel,sama5d3-nfc-io
               - atmel,sama5d3-sfrbu
Signature · 1 line
2.43.0
Reviewed-by on v4 2/3
#3 lore raw

Re: [PATCH v4 2/3] dt-bindings: mfd: syscon: add aspeed,ast2600-i3c-global compatible

Quoted 7 lines · Dawid Glazik

Add aspeed,ast2600-i3c-global to the syscon binding compatible lists to document the AST2600 I3C global register syscon node.

---
 Documentation/devicetree/bindings/mfd/syscon.yaml | 2 ++
 1 file changed, 2 insertions(+)

Best regards,
Krzysztof

maintainer
#4 lore raw

Re: [PATCH v4 2/3] dt-bindings: mfd: syscon: add aspeed,ast2600-i3c-global compatible

Hi Lee,

Quoted 10 lines · Krzysztof Kozlowski
Quoted 7 lines · Dawid Glazik

Add aspeed,ast2600-i3c-global to the syscon binding compatible lists to document the AST2600 I3C global register syscon node.

---
 Documentation/devicetree/bindings/mfd/syscon.yaml | 2 ++

 1 file changed, 2 insertions(+)

Thanks for applying the AST2700 SoC1 pinctrl binding[1].

Can you pick this one up too? I've applied the corresponding dts patch to the BMC tree, it'd be great to address the warning that's currently produced.

Cheers,

Andrew

[1]: https://lore.kernel.org/all/[email protected]/

#5 lore raw

PATCH v4 3/3 ARM: dts: aspeed-g6: Add nodes for i3c controllers

In reply to Dawid Glazik

Add the i3c controller devices to the ast2600 g6 common dts. We add all 6 busses to the common g6 definition, but leave disabled through the status property, to be enabled per-platform.

---
v4:
- removed i3c aliases
- renamed i3c-global node name to generic: syscon
v3:
- add i3c aliases
- rebase on top of latest tree and solve conflicts
- as agreed with Jeremy off-list, he said I can take authorship of this going forward
v2:
- use inline bus representation, without the i3c: label

---
 arch/arm/boot/dts/aspeed/aspeed-g6.dtsi | 91 +++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
arch/arm/boot/dts/aspeed/aspeed-g6.dtsi +91 -0
index f5641128614f..51a6a4157f1b 100644
@@ -1066,6 +1066,97 @@ i2c15: i2c@800 {
 				};
 			};
 
+			bus@1e7a0000 {
+				compatible = "simple-bus";
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0 0x1e7a0000 0x8000>;
+
+				i3c_global: syscon@0 {
+					compatible = "aspeed,ast2600-i3c-global", "syscon";
+					reg = <0x0 0x1000>;
+					resets = <&syscon ASPEED_RESET_I3C_DMA>;
+				};
+
+				i3c0: i3c@2000 {
+					compatible = "aspeed,ast2600-i3c";
+					reg = <0x2000 0x1000>;
+					#address-cells = <3>;
+					#size-cells = <0>;
+					clocks = <&syscon ASPEED_CLK_GATE_I3C0CLK>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i3c1_default>;
+					interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
+					aspeed,global-regs = <&i3c_global 0>;
+					status = "disabled";
+				};
+
+				i3c1: i3c@3000 {
+					compatible = "aspeed,ast2600-i3c";
+					reg = <0x3000 0x1000>;
+					#address-cells = <3>;
+					#size-cells = <0>;
+					clocks = <&syscon ASPEED_CLK_GATE_I3C1CLK>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i3c2_default>;
+					interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+					aspeed,global-regs = <&i3c_global 1>;
+					status = "disabled";
+				};
+
+				i3c2: i3c@4000 {
+					compatible = "aspeed,ast2600-i3c";
+					reg = <0x4000 0x1000>;
+					#address-cells = <3>;
+					#size-cells = <0>;
+					clocks = <&syscon ASPEED_CLK_GATE_I3C2CLK>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i3c3_default>;
+					interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
+					aspeed,global-regs = <&i3c_global 2>;
+					status = "disabled";
+				};
+
+				i3c3: i3c@5000 {
+					compatible = "aspeed,ast2600-i3c";
+					reg = <0x5000 0x1000>;
+					#address-cells = <3>;
+					#size-cells = <0>;
+					clocks = <&syscon ASPEED_CLK_GATE_I3C3CLK>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i3c4_default>;
+					interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+					aspeed,global-regs = <&i3c_global 3>;
+					status = "disabled";
+				};
+
+				i3c4: i3c@6000 {
+					compatible = "aspeed,ast2600-i3c";
+					reg = <0x6000 0x1000>;
+					#address-cells = <3>;
+					#size-cells = <0>;
+					clocks = <&syscon ASPEED_CLK_GATE_I3C4CLK>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i3c5_default>;
+					interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+					aspeed,global-regs = <&i3c_global 4>;
+					status = "disabled";
+				};
+
+				i3c5: i3c@7000 {
+					compatible = "aspeed,ast2600-i3c";
+					reg = <0x7000 0x1000>;
+					#address-cells = <3>;
+					#size-cells = <0>;
+					clocks = <&syscon ASPEED_CLK_GATE_I3C5CLK>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_i3c6_default>;
+					interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+					aspeed,global-regs = <&i3c_global 5>;
+					status = "disabled";
+				};
+			};
+
 			fsim0: fsi@1e79b000 {
 				#interrupt-cells = <1>;
 				compatible = "aspeed,ast2600-fsi-master";
Signature · 1 line
2.43.0
#6 lore raw
In reply to Dawid Glazik
Quoted 20 lines · Dawid Glazik

This series reworks and resubmits AST2600 I3C DTS updates that were originally posted in 2024, but stalled without further upstream progress.[1] The series was rebased onto the current tree and merge conflicts were resolved.

The patches first move I2C controller nodes under the APB simple-bus for layout consistency, then document aspeed,ast2600-i3c-global in the syscon binding, and finally add AST2600 I3C controller nodes in aspeed-g6.dtsi.

Jeremy agreed in a separate email thread that I can continue this series under my authorship.

Dawid Glazik (3):
ARM: dts: aspeed-g6: move i2c controllers directly into apb node
dt-bindings: mfd: syscon: add aspeed,ast2600-i3c-global compatible
ARM: dts: aspeed-g6: Add nodes for i3c controllers

Quoted 6 lines
  .../devicetree/bindings/mfd/syscon.yaml       |   2 +
  arch/arm/boot/dts/aspeed/aspeed-g6.dtsi       | 543 ++++++++++--------
  2 files changed, 318 insertions(+), 227 deletions(-)

base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f

Hi all,

Gentle ping for this series:
https://lore.kernel.org/all/[email protected]/#t

I received Reviewed-by from Krzysztof Kozlowski (thank you). Could I please get feedback/ack from maintainers on the remaining parts, especially ASPEED DTS?

If preferred, I can respin/rebase the series.

Thanks,
Dawid Glazik

maintainer
#7 lore raw

Hi Dawid,

Quoted 30 lines · Dawid Glazik
Quoted 20 lines · Dawid Glazik

This series reworks and resubmits AST2600 I3C DTS updates that were originally posted in 2024, but stalled without further upstream progress.[1] The series was rebased onto the current tree and merge conflicts were resolved.

The patches first move I2C controller nodes under the APB simple-bus for layout consistency, then document aspeed,ast2600-i3c-global in the syscon binding, and finally add AST2600 I3C controller nodes in aspeed-g6.dtsi.

Jeremy agreed in a separate email thread that I can continue this series under my authorship.

Dawid Glazik (3):
   ARM: dts: aspeed-g6: move i2c controllers directly into apb node
   dt-bindings: mfd: syscon: add aspeed,ast2600-i3c-global compatible
   ARM: dts: aspeed-g6: Add nodes for i3c controllers

Quoted 6 lines

  .../devicetree/bindings/mfd/syscon.yaml       |   2 + arch/arm/boot/dts/aspeed/aspeed-g6.dtsi       | 543 ++++++++++--------

  2 files changed, 318 insertions(+), 227 deletions(-)

base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f

Hi all,

Quoted 9 lines

Gentle ping for this series:
https://lore.kernel.org/all/[email protected]/#t

I received Reviewed-by from Krzysztof Kozlowski (thank you). Could I please get feedback/ack from maintainers on the remaining parts, especially ASPEED DTS?

If preferred, I can respin/rebase the series.

Sorry for the delay.

Given Krzysztof's R-b tag for patch 2 I've applied 3 (along with 1) to the BMC tree. Patch 2 should be picked up by Lee through the MFD tree.

Cheers,

Andrew

#8 lore raw
Quoted 9 lines · Andrew Jeffery

Sorry for the delay.

Given Krzysztof's R-b tag for patch 2 I've applied 3 (along with 1) to the BMC tree. Patch 2 should be picked up by Lee through the MFD tree.

Cheers,

Andrew

Hi Andrew,

Great news! Thank you.

Dawid