Thread (2 messages) 2 messages, 2 authors, 2d ago
WARM2d

[PATCH] ARM: dts: am33xx: avoid invalid OCP device-link for timer1 and timer2

From: Wagner Popov dos Santos <hidden>
Date: 2026-07-01 17:57:41
Also in: linux-omap
Subsystem: omap device tree support, the rest · Maintainers: Aaro Koskinen, Andreas Kemnade, Kevin Hilman, Roger Quadros, Tony Lindgren, Linus Torvalds

This patch fixes boot-time fw_devlink errors on AM335x/UCC3 caused
by invalid device-link creation attempts involving timer1/timer2
and supplier ocp.

Observed kernel log messages:

  ti-sysc 44e31000.target-module: Failed to create device link (0x180)
  with supplier ocp for
  /ocp/interconnect@44c00000/segment@200000/target-module@31000/timer@0

  ti-sysc 48040000.target-module: Failed to create device link (0x180)
  with supplier ocp for
  /ocp/interconnect@48000000/segment@0/target-module@40000/timer@0

The change updates dependency handling for timer1 and timer2 so the
kernel no longer attempts this invalid link-creation path during
initialization of supplier ocp.

Impact:

- Removes the two ti-sysc/fw_devlink error messages at boot
- Preserves current timer and clock assignment behavior
- No functional regression observed in boot and timer operation tests

Signed-off-by: Wagner Popov dos Santos <redacted>
---
 arch/arm/boot/dts/ti/omap/am33xx.dtsi | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/ti/omap/am33xx.dtsi b/arch/arm/boot/dts/ti/omap/am33xx.dtsi
index ca3e7f5d7d0dc..760598d5ae1c9 100644
--- a/arch/arm/boot/dts/ti/omap/am33xx.dtsi
+++ b/arch/arm/boot/dts/ti/omap/am33xx.dtsi
@@ -708,6 +708,7 @@ &timer1_target {
 	timer@0 {
 		assigned-clocks = <&timer1_fck>;
 		assigned-clock-parents = <&sys_clkin_ck>;
+		post-init-providers = <&ocp>;
 	};
 };
 
@@ -721,5 +722,6 @@ &timer2_target {
 	timer@0 {
 		assigned-clocks = <&timer2_fck>;
 		assigned-clock-parents = <&sys_clkin_ck>;
+		post-init-providers = <&ocp>;
 	};
 };
-- 
2.43.0
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