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usb: dwc3: Remove mdelay to fix USBLAN issue#219

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gratian merged 1 commit intoni:nilrt/master/6.6from
chaitu236:dev/cvadrevu/fix_dwc3
Mar 25, 2025
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usb: dwc3: Remove mdelay to fix USBLAN issue#219
gratian merged 1 commit intoni:nilrt/master/6.6from
chaitu236:dev/cvadrevu/fix_dwc3

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cRIO-9041, cRIO-9034 and possibly other devices' USBLAN does not work with this mdelay in place when connected to Windows host.

WI: AB#2419039.
WI: AB#3051331

We previously had fix for this in 6.6 kernel #133 by reverting an upstream commit but upstream moved the delay to a different place in c3d3501 and we accidentally kept the new changes in #184.

Testing

  • Verified on cRIO-9041 that USBLAN issue doesn't occur anymore.
  • Verified that 6.12 kernels also require this fix AB#3051331.

Note

  • Needs cherry-picking to nilrt/25.3/6.6.
  • Needs cherry-picking to nilrt/master/6.12.

cRIO-9041, cRIO-9034 and possibly other devices' USBLAN does not work
with this mdelay in place when connected to Windows host.

Signed-off-by: Chaitanya Vadrevu <chaitanya.vadrevu@emerson.com>
@chaitu236 chaitu236 requested a review from a team March 24, 2025 16:18
@gratian gratian merged commit 29ff169 into ni:nilrt/master/6.6 Mar 25, 2025
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gratian commented Mar 25, 2025

Also merged into nilrt/25.3/6.6

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gratian commented Mar 25, 2025

Cherry-picked in nilrt/master/6.12: b688178

@chaitu236 chaitu236 deleted the dev/cvadrevu/fix_dwc3 branch March 25, 2025 17:53
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2 participants