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NVIDIA: SAUCE: usb: xhci: tegra: Use platform_get_irq_optional() for wake IRQs

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When some wake IRQs are disabled in the device tree, the corresponding
interrupt entries are removed from DT. In such cases, the driver
currently calls platform_get_irq(), which returns -ENXIO and logs
an error like:

  tegra-xusb a80aa10000.usb: error -ENXIO: IRQ index 9 not found

However, not all wake IRQs are mandatory. the hardware can operate
normally even if some wake sources are not defined in DT. To avoid this
false alarm and allow missing wake IRQs gracefully, use
platform_get_irq_optional() instead of platform_get_irq().

Bug 5421820

Change-Id: Ib03b4edb933d481983ec8b9f752ab26004ba4784
Signed-off-by: Wayne Chang <waynec@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/3rdparty/canonical/linux-noble/+/3470345
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Wayne Chang
2025-10-15 11:23:54 +00:00
committed by mobile promotions
parent bfe324d0df
commit 62eaf46abc
1 changed files with 1 additions and 1 deletions
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drivers/usb/host/xhci-tegra.c
+1 -1
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@@ -2191,7 +2191,7 @@ static int tegra_xusb_setup_wakeup(struct platform_device *pdev, struct tegra_xu
for (i = 0; i < tegra->soc->max_num_wakes; i++) {
struct irq_data *data;
tegra->wake_irqs[i] = platform_get_irq(pdev, i + WAKE_IRQ_START_INDEX);
tegra->wake_irqs[i] = platform_get_irq_optional(pdev, i + WAKE_IRQ_START_INDEX);
if (tegra->wake_irqs[i] < 0)
break;