linux-kernel - [PATCH 08/11] arm64: dts: ti: k3-am65: Enable MCAN nodes at the board level

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Date:   Fri, 28 Oct 2022 09:24:14 -0500
From:   Andrew Davis <afd@...com>
To:     Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bryan Brattlof <bb@...com>, Le Jin <le.jin@...mens.com>,
        Jan Kiszka <jan.kiszka@...mens.com>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Andrew Davis <afd@...com>
Subject: [PATCH 08/11] arm64: dts: ti: k3-am65: Enable MCAN nodes at the board level

MCAN nodes defined in the top-level AM65x SoC dtsi files are incomplete
and will 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@...com>
---
 arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi | 8 --------
 arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi            | 2 ++
 arch/arm64/boot/dts/ti/k3-am654-base-board.dts     | 8 --------
 3 files changed, 2 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index 35af8798f208e..c431d670757ba 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -650,14 +650,6 @@ &pcie1_rc {
 	reset-gpios = <&wkup_gpio0 27 GPIO_ACTIVE_HIGH>;
 };
 
-&m_can0 {
-	status = "disabled";
-};
-
-&m_can1 {
-	status = "disabled";
-};
-
 &pcie1_ep {
 	status = "disabled";
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
index 22f30174621e2..9ceae8a5b7e2d 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -177,6 +177,7 @@ m_can0: mcan@...28000 {
 			     <GIC_SPI 545 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	m_can1: mcan@...68000 {
@@ -192,6 +193,7 @@ m_can1: mcan@...68000 {
 			     <GIC_SPI 548 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "int0", "int1";
 		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+		status = "disabled";
 	};
 
 	fss: fss@...00000 {
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index beac2c563e831..bf6a6fe3d7ba3 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -431,14 +431,6 @@ &pcie1_ep {
 	status = "disabled";
 };
 
-&m_can0 {
-	status = "disabled";
-};
-
-&m_can1 {
-	status = "disabled";
-};
-
 &mailbox0_cluster0 {
 	interrupts = <436>;
 
-- 
2.37.3