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From:   Andrew Davis <afd@ti.com>
To:     Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Bryan Brattlof <bb@ti.com>,
        <linux-arm-kernel@lists.infradead.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
CC:     Andrew Davis <afd@ti.com>
Subject: [PATCH 04/12] arm64: dts: ti: k3-j721e: Enable MCAN nodes at the board level
Date:   Thu, 20 Oct 2022 11:02:57 -0500
Message-ID: <20221020160305.18711-5-afd@ti.com>
In-Reply-To: <20221020160305.18711-1-afd@ti.com>
References: <20221020160305.18711-1-afd@ti.com>
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MCAN nodes defined in the top-level J721e SoC dtsi files are incomplete
and may not be functional unless they are extended with pinmux
information.

As the pinmux is only known at the board integration level, these
nodes should only be enabled when provided with this information.

Disable the MCAN nodes in the dtsi files and only enable the ones that
are actually pinned out on a given board.

Signed-off-by: Andrew Davis <afd@ti.com>
---
 .../dts/ti/k3-j721e-common-proc-board.dts     | 52 ++-----------------
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi     | 14 +++++
 .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi      |  2 +
 3 files changed, 20 insertions(+), 48 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 6cee708e0d170..1861598f3bb40 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -878,73 +878,29 @@ &icssg1_mdio {
 };
 
 &mcu_mcan0 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_mcan0_pins_default>;
 	phys = <&transceiver1>;
 };
 
 &mcu_mcan1 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_mcan1_pins_default>;
 	phys = <&transceiver2>;
 };
 
 &main_mcan0 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mcan0_pins_default>;
 	phys = <&transceiver3>;
 };
 
-&main_mcan1 {
-	status = "disabled";
-};
-
 &main_mcan2 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mcan2_pins_default>;
 	phys = <&transceiver4>;
 };
-
-&main_mcan3 {
-	status = "disabled";
-};
-
-&main_mcan4 {
-	status = "disabled";
-};
-
-&main_mcan5 {
-	status = "disabled";
-};
-
-&main_mcan6 {
-	status = "disabled";
-};
-
-&main_mcan7 {
-	status = "disabled";
-};
-
-&main_mcan8 {
-	status = "disabled";
-};
-
-&main_mcan9 {
-	status = "disabled";
-};
-
-&main_mcan10 {
-	status = "disabled";
-};
-
-&main_mcan11 {
-	status = "disabled";
-};
-
-&main_mcan12 {
-	status = "disabled";
-};
-
-&main_mcan13 {
-	status = "disabled";
-};
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 3706b319c46c6..646885dd9f533 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -2056,6 +2056,7 @@ main_mcan0: can@2701000 {
 			     <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan1: can@2711000 {
@@ -2070,6 +2071,7 @@ main_mcan1: can@2711000 {
 			     <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan2: can@2721000 {
@@ -2084,6 +2086,7 @@ main_mcan2: can@2721000 {
 			     <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan3: can@2731000 {
@@ -2098,6 +2101,7 @@ main_mcan3: can@2731000 {
 			     <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan4: can@2741000 {
@@ -2112,6 +2116,7 @@ main_mcan4: can@2741000 {
 			     <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan5: can@2751000 {
@@ -2126,6 +2131,7 @@ main_mcan5: can@2751000 {
 			     <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan6: can@2761000 {
@@ -2140,6 +2146,7 @@ main_mcan6: can@2761000 {
 			     <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan7: can@2771000 {
@@ -2154,6 +2161,7 @@ main_mcan7: can@2771000 {
 			     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan8: can@2781000 {
@@ -2168,6 +2176,7 @@ main_mcan8: can@2781000 {
 			     <GIC_SPI 577 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan9: can@2791000 {
@@ -2182,6 +2191,7 @@ main_mcan9: can@2791000 {
 			     <GIC_SPI 580 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan10: can@27a1000 {
@@ -2196,6 +2206,7 @@ main_mcan10: can@27a1000 {
 			     <GIC_SPI 583 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan11: can@27b1000 {
@@ -2210,6 +2221,7 @@ main_mcan11: can@27b1000 {
 			     <GIC_SPI 586 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan12: can@27c1000 {
@@ -2224,6 +2236,7 @@ main_mcan12: can@27c1000 {
 			     <GIC_SPI 589 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	main_mcan13: can@27d1000 {
@@ -2238,5 +2251,6 @@ main_mcan13: can@27d1000 {
 			     <GIC_SPI 592 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
index 7bb6613796eab..f79e8100a7ac0 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
@@ -408,6 +408,7 @@ mcu_mcan0: can@40528000 {
 			     <GIC_SPI 833 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	mcu_mcan1: can@40568000 {
@@ -422,5 +423,6 @@ mcu_mcan1: can@40568000 {
 			     <GIC_SPI 836 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 };
-- 
2.37.3