From nobody Mon Apr 13 20:05:32 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 808BAC4332F for ; Wed, 16 Nov 2022 14:08:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234093AbiKPOI3 (ORCPT ); Wed, 16 Nov 2022 09:08:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41874 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233142AbiKPOH7 (ORCPT ); Wed, 16 Nov 2022 09:07:59 -0500 Received: from mail-wr1-x42f.google.com (mail-wr1-x42f.google.com [IPv6:2a00:1450:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 257A5E73 for ; Wed, 16 Nov 2022 06:07:27 -0800 (PST) Received: by mail-wr1-x42f.google.com with SMTP id h9so30122056wrt.0 for ; Wed, 16 Nov 2022 06:07:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=zy34VNtqLWyXgm9jc9aJMnFAO1X6qZS3sO7xNHOGNqM=; b=mHWMGtVFaMalslGQZnxoS9k8rJyaVZqFIBCUV7DCDIOCwpo9A1dOFQF7cJkiSPsIby KTNNJpDaM0oe5sk3da8Cw0IkXG0i/NaQLLv9/qxP0/QvnAOeEEyEXA6NzJD2CW5mKei8 +T1S3hCTJYFbtWMGyDDKOvnALXoVUMiEcMD6eWbwKS7ZqFWjRdB6ytRv9L0tV0zNcBzJ YPJ4mva+UIEf4vgNqFj0xjIh9EyduelsCE0KGRDr+KVc2i9B0L3ROiOhJhmjsMOX4B52 W+9QA/luFjShT8ov6UK+M/zFLjax9x1Wz9VASxADqv/tOBGfjWL7bFOB4pLO+gP/uJhu zeDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=zy34VNtqLWyXgm9jc9aJMnFAO1X6qZS3sO7xNHOGNqM=; b=yaKmuQZnheghgicXRkGynhQsWd7MOTrrpamKAMK6i/Ea+3hvKOgF/L/w2UR0OdNq5k g502r5W4oiQMPAwBGMNGy8lOmYJoJYcusr/BgoTurO554/YKjGcM+XRUP5I9fpP3VHhb eUL16MFHEpS/6Whke1BmroMudFqQvd7nJtC0XbDwHcWNUfqTLt/4lCQ4Rhm5PcoGsP54 uUVvSHvxgaNuroFvNly6R+kYXORO9CKpKVSQh9IqwqG0jNCDBC+rQnoL+xeODQurhEqj 5xjb2tpFSsqP+57qhB675qg53B+c4Wk1H0EV5xaS+nDkZPt3xHkoZlZgzj7xU2N8xCiM YtzA== X-Gm-Message-State: ANoB5pl6uVjNI8TyWVc+uwua17gip/mbSJkYLaeEcKujAMipIgb1Gl4T /k7FwKVjpBOC6OdKQeEwJSI9DA== X-Google-Smtp-Source: AA0mqf5wKTVmy8vggV39mVWVmfUWD1KpjROeBuWt7bUF9bAs8G2fMltbn5Qlu9UK+Q+u4miAtAMx1A== X-Received: by 2002:adf:ba85:0:b0:22e:3336:1509 with SMTP id p5-20020adfba85000000b0022e33361509mr14634369wrg.710.1668607645686; Wed, 16 Nov 2022 06:07:25 -0800 (PST) Received: from nicolas-Precision-3551.home ([2001:861:5180:dcc0:3f99:5293:49fd:9c5b]) by smtp.gmail.com with ESMTPSA id j17-20020a5d6191000000b0023657e1b980sm15333850wru.53.2022.11.16.06.07.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Nov 2022 06:07:25 -0800 (PST) From: Nicolas Frayer To: peter.ujfalusi@gmail.com, vkoul@kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Cc: khilman@baylibre.com, glaroque@baylibre.com, nfrayer@baylibre.com Subject: [PATCH v2] dmaengine: ti: k3-udma: Deferring probe when soc_device_match() returns NULL Date: Wed, 16 Nov 2022 15:07:12 +0100 Message-Id: <20221116140712.24283-1-nfrayer@baylibre.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" When the k3 socinfo driver is built as a module, there is a possibility that it will probe after the k3 udma driver and the later returns -ENODEV. By deferring the k3 udma probe we allow the k3 socinfo to probe and register the soc_device_attribute structure needed by the k3 udma driver. Signed-off-by: Nicolas Frayer --- v1->v2: Extracted this patch from the following series: https://lore.kernel.org/all/20221108181144.433087-1-nfrayer@baylibre.com/ drivers/dma/ti/k3-udma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index 7b5081989b3d..a6bb5077900b 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -5285,7 +5285,7 @@ static int udma_probe(struct platform_device *pdev) soc =3D soc_device_match(k3_soc_devices); if (!soc) { dev_err(dev, "No compatible SoC found\n"); - return -ENODEV; + return -EPROBE_DEFER; } ud->soc_data =3D soc->data; =20 --=20 2.25.1