TPS6594: Error IRQ trap reach ilim, overcurrent for BUCK1/2 error

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    • Type: Bug
    • Resolution: Unresolved
    • Priority: High
    • Linux Core SDK
    • LCPD-37199
    • 09.01.00
    • 12.00
    • Hide
      am62axx_sk-fs
      j721e-idk-gw
      j721s2-evm
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      am62axx_sk-fs j721e-idk-gw j721s2-evm

      When system is running under high load, PMIC ISR reports high current. This can be quickly reproduced when running the TIDL AVP3 demo.

      [ 8315.974654] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[ 8618.482492] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK1
[10103.778680] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[10201.459716] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[10293.925313] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[10727.782182] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[10820.647424] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK1
[10862.442348] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[10862.577265] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[10899.139005] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[11503.731596] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[11620.042786] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[11674.794824] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[11782.803003] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2
[11785.887051] tps6594 0-0048: Error IRQ trap reach ilim, overcurrent for BUCK2

      On inspection of the driver during debugging; two issues were found:
      1. Incorrect multi-phase configuration of this regulator: this has been fixed, please see commit https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/commit/drivers/regulator/tps6594-regulator.c?h=ti-linux-6.6.y&id=31856b260fb9c1e7519606604d353f3e41949508
      2. No support for ILIM configuration: while this support has still not been added in the SDK; local addition of ILIM configuration still did not resolve this issue

      Current status of the debug is to probe the overcurrent raising rail and confirm whether it is is actually drawing excessive current.

            Assignee:
            TI User
            Reporter:
            TI User
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              Created:
              Updated:

                Connection: Intermediate to External PROD System
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