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arm64: dts: zynqmp-zcu102-rev10-adrv904x: fix AD9528 reset GPIO polarity - #3464

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fix/ad9528-adrv904x-reset-gpio-convention
Jul 30, 2026
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arm64: dts: zynqmp-zcu102-rev10-adrv904x: fix AD9528 reset GPIO polarity#3464
stefpopa merged 1 commit into
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fix/ad9528-adrv904x-reset-gpio-convention

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@stefpopa stefpopa commented Jul 28, 2026

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PR Description

The AD9528 driver was updated in commit 907be26 ("iio: frequency: ad9528: Fix reset logic") to follow Linux GPIO convention where reset GPIOs are active-high from the driver's viewpoint, with active-low polarity communicated via devicetree properties.

Add GPIO_ACTIVE_LOW flag to the AD9528 reset-gpios to match the updated driver behavior. Without this fix, the AD9528 probe fails with error -5 (EIO) because the chip remains in reset.

Fixes: 907be26 ("iio: frequency: ad9528: Fix reset logic")

PR Type

  • Bug fix (a change that fixes an issue)
  • New feature (a change that adds new functionality)
  • Breaking change (a change that affects other repos or cause CIs to fail)

PR Checklist

  • I have conducted a self-review of my own code changes
  • I have compiled my changes, including the documentation
  • I have tested the changes on the relevant hardware
  • I have updated the documentation outside this repo accordingly
  • I have provided links for the relevant upstream lore

The AD9528 driver was updated in commit 907be26 ("iio: frequency:
ad9528: Fix reset logic") to follow Linux GPIO convention where reset
GPIOs are active-high from the driver's viewpoint, with active-low
polarity communicated via devicetree properties.

Add GPIO_ACTIVE_LOW flag to the AD9528 reset-gpios to match the updated
driver behavior. Without this fix, the AD9528 probe fails with error -5
(EIO) because the chip remains in reset.

Fixes: 907be26 ("iio: frequency: ad9528: Fix reset logic")
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
@stefpopa
stefpopa merged commit 84bf858 into main Jul 30, 2026
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@stefpopa
stefpopa deleted the fix/ad9528-adrv904x-reset-gpio-convention branch July 30, 2026 11:01
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4 participants