From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A6EF93D4116; Thu, 6 Aug 2026 07:03:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785999803; cv=none; b=mYKnRe5gn7mhezdn4UwsHKs0k5+Us6Aq/Zurrnf23UgZkt0GjJHBfUVZfXGMXBoN6OCrjnjsG0h9ajj+jt9i+QSypPfkS+FxCOZ2+vAHa7H3QD14uhgPGNuaaHmJ5wyhrc2OQJs3mMLR/3M21wV1UhNRbugxKd7MHq8ojjcs6PI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785999803; c=relaxed/simple; bh=48tnfKwV7NZXod3EJNi4YQ0rt/wzlofZI5ApZ4kY7cI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=BQ7vMFnbOEMMRmSmNqy/xmHffElbinJbiOHUm+hXsEqldR9COgLDoB5CnAFklYBFN6kw5gazcFvTuApLN6xDE1i/N3D4jxrgelrPmGIaGx2zyXK3gbk0w8FVLz462X0BnbgFIWWNSiDMeV/1KXcOwN3MNQiEMdiLZzqCUpcUsFQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=g+K/XkTx; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="g+K/XkTx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D0BE41F000E9; Thu, 6 Aug 2026 07:03:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1785999802; bh=FPxPGLBzcruAXuhhRYOBDz4X+yVK+jCdimS0zS+DXVc=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=g+K/XkTxQeb00Y7nrM1BmSVK1Mxtu7KqHpLo8UrUjsQGv/ik8geYTg/zBstZPFlUM XZn3Czk9jNK0ChkhItkNNJIgzGsRZgnqEhhzaVrK3C431O0XuWO81zv01LpfyNMiYM 5ecNlTNeUH3AKUUsXjzR1FXQhBc+KUy438nMzJMI= Date: Thu, 6 Aug 2026 09:03:05 +0200 From: Greg Kroah-Hartman To: phucduc.bui@gmail.com Cc: Mathias Nyman , Thierry Reding , Jonathan Hunter , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: Re: [PATCH] usb: xhci: tegra: Propagate -EPROBE_DEFER from IRQ lookup Message-ID: <2026080654-glass-swiftness-7068@gregkh> References: <20260806063933.27331-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260806063933.27331-1-phucduc.bui@gmail.com> On Thu, Aug 06, 2026 at 01:39:33PM +0700, phucduc.bui@gmail.com wrote: > From: bui duc phuc > > Return -EPROBE_DEFER from platform_get_irq_optional() so the driver is > re-probed when the interrupt resource becomes available instead of > continuing probe without an IRQ. > > Signed-off-by: bui duc phuc > --- > drivers/usb/host/xhci-tegra.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c > index e7e6d569f1db..cb946eb7a65d 100644 > --- a/drivers/usb/host/xhci-tegra.c > +++ b/drivers/usb/host/xhci-tegra.c > @@ -1571,6 +1571,8 @@ static int tegra_xusb_setup_wakeup(struct platform_device *pdev, struct tegra_xu > struct irq_data *data; > > tegra->wake_irqs[i] = platform_get_irq_optional(pdev, i + WAKE_IRQ_START_INDEX); > + if (tegra->wake_irqs[i] == -EPROBE_DEFER) > + return -EPROBE_DEFER; > if (tegra->wake_irqs[i] < 0) > break; > > -- > 2.43.0 > > As before, how was this found and tested? thanks, greg k-h