[PATCH v1] riscv: dts: microchip: add can resets to mpfs
From: Conor Dooley
Date: Wed Jan 28 2026 - 15:55:46 EST
From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
The can IP on PolarFire SoC requires the use of the blocks reset
during normal operation, and the property is therefore required by the
binding, causing a warning on the m100pfsevp board where it is default
enabled:
mpfs-m100pfsevp.dtb: can@2010c000 (microchip,mpfs-can): 'resets' is a required property
Add the reset to both can nodes.
Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
---
CC: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
CC: Daire McNamara <daire.mcnamara@xxxxxxxxxxxxx>
CC: Rob Herring <robh@xxxxxxxxxx>
CC: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
CC: linux-riscv@xxxxxxxxxxxxxxxxxxx
CC: devicetree@xxxxxxxxxxxxxxx
CC: linux-kernel@xxxxxxxxxxxxxxx
arch/riscv/boot/dts/microchip/mpfs.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/riscv/boot/dts/microchip/mpfs.dtsi b/arch/riscv/boot/dts/microchip/mpfs.dtsi
index 5c2963e269b8..a0ffedc2d344 100644
--- a/arch/riscv/boot/dts/microchip/mpfs.dtsi
+++ b/arch/riscv/boot/dts/microchip/mpfs.dtsi
@@ -428,6 +428,7 @@ can0: can@2010c000 {
clocks = <&clkcfg CLK_CAN0>, <&clkcfg CLK_MSSPLL3>;
interrupt-parent = <&plic>;
interrupts = <56>;
+ resets = <&mss_top_sysreg CLK_CAN0>;
status = "disabled";
};
@@ -437,6 +438,7 @@ can1: can@2010d000 {
clocks = <&clkcfg CLK_CAN1>, <&clkcfg CLK_MSSPLL3>;
interrupt-parent = <&plic>;
interrupts = <57>;
+ resets = <&mss_top_sysreg CLK_CAN1>;
status = "disabled";
};
--
2.51.0