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GET /api/patches/2219114/?format=api
{ "id": 2219114, "url": "http://patchwork.ozlabs.org/api/patches/2219114/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260402-baytrail-real-swnode-v2-2-6f5054a4cc07@oss.qualcomm.com/", "project": { "id": 42, "url": "http://patchwork.ozlabs.org/api/projects/42/?format=api", "name": "Linux GPIO development", "link_name": "linux-gpio", "list_id": "linux-gpio.vger.kernel.org", "list_email": "linux-gpio@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260402-baytrail-real-swnode-v2-2-6f5054a4cc07@oss.qualcomm.com>", "list_archive_url": null, "date": "2026-04-02T12:54:27", "name": "[v2,2/4] gpio: swnode: defer probe on references to unregistered software nodes", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "38e5738c98219f593724229e0875b046f124e1b0", "submitter": { "id": 92196, "url": "http://patchwork.ozlabs.org/api/people/92196/?format=api", "name": "Bartosz Golaszewski", "email": "bartosz.golaszewski@oss.qualcomm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260402-baytrail-real-swnode-v2-2-6f5054a4cc07@oss.qualcomm.com/mbox/", "series": [ { "id": 498478, "url": "http://patchwork.ozlabs.org/api/series/498478/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=498478", "date": "2026-04-02T12:54:25", "name": "platform/x86: x86-android-tablets: use real firmware node references with intel drivers", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/498478/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2219114/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2219114/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-gpio+bounces-34587-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-gpio@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=LWdMWym1;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=eNGKedHW;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260402-baytrail-real-swnode-v2-2-6f5054a4cc07@oss.qualcomm.com>", "References": "<20260402-baytrail-real-swnode-v2-0-6f5054a4cc07@oss.qualcomm.com>", "In-Reply-To": "\n <20260402-baytrail-real-swnode-v2-0-6f5054a4cc07@oss.qualcomm.com>", "To": "Andy Shevchenko <andriy.shevchenko@linux.intel.com>,\n Daniel Scally <djrscally@gmail.com>,\n Heikki Krogerus <heikki.krogerus@linux.intel.com>,\n Sakari Ailus <sakari.ailus@linux.intel.com>,\n Greg Kroah-Hartman <gregkh@linuxfoundation.org>,\n \"Rafael J. Wysocki\" <rafael@kernel.org>, Danilo Krummrich <dakr@kernel.org>,\n Mika Westerberg <mika.westerberg@linux.intel.com>,\n Andy Shevchenko <andy@kernel.org>, Linus Walleij <linusw@kernel.org>,\n Hans de Goede <hansg@kernel.org>,\n =?utf-8?q?Ilpo_J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>,\n Dmitry Torokhov <dmitry.torokhov@gmail.com>, Len Brown <lenb@kernel.org>", "Cc": "linux-acpi@vger.kernel.org, driver-core@lists.linux.dev,\n linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,\n platform-driver-x86@vger.kernel.org, brgl@kernel.org,\n Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>", "X-Mailer": "b4 0.14.2", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=1419;\n i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id;\n bh=OBCo64whRbgHvAnjQKSCb3nw5YJMBTL4o4QzfncDFbc=;\n b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBpzmcQUSEE6XHDFw8DGdZVpyLl+CaFoSdIrorju\n CiIynNOhIOJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCac5nEAAKCRAFnS7L/zaE\n w4RuEACB5VBkwCHcQ7BZCbTI/J9CdJ2yvC4mBxOlZ0uV5SppzmOiQja+z/Vz87C+5xa2o551+ON\n vYXEmO8A1CeXzPFkxkBYtB2m+V5pE5O1CO8c2UtrzVvxsSF/YQKId+9/l2b+n/X+GNbGuTUScum\n +5PExp0Yo1/6ulywtRM3aZ8a048kun2M2qwvRCgDefYUzj2nJrCau/mWu3kNkUBWeJsiI9rBM0T\n DvTF2jVhzzVsHLrJgcOFSOeZGLgyP1nOf/dGVd/S+dmadTLV3CPTg3dAN6ZpE52zRb6n+jq2hsQ\n gSIOFSdhoUKWOns4thnlVkUJCcISVJOgDxgd0cyYr92mjZV9fqfvEe2VRIpEmdNXXqnyNllIigB\n UW2wYoNcLfM9StWcLPSrTW3ooK+ZPheP+Hd5nfrWw3ZShS1dNOnZKCPKT2IgINhrplluYrn7A4R\n kfopULdzFe5ED2H8NhwEzPA7+EB/R6hfv3b3vxHnyq72fZ3+GQF3JGKh6IL0hRjLrNxeVltp4L6\n hYEtBkCuP8fNzCyRkb0Ww02+vaTTP2SJcwdD0ryBX5GPOdRW2aU1ZlIKimDX9sr5sVZ7nRvKZVI\n xNmXYKEIXGN2HxaPcliFZD3aSYk/ARhrr1xPu/bqu2BYzz5Fa7tN4RkBzGg7t2K8MAFTAMZEk86\n faSlBrvQVKIHitA==", "X-Developer-Key": "i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp;\n fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772", "X-Authority-Analysis": "v=2.4 cv=fdGgCkQF c=1 sm=1 tr=0 ts=69ce671a cx=c_pps\n a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10\n a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=EUspDBNiAAAA:8\n a=H5P8rdbTNIBZEmRUth0A:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22", "X-Proofpoint-ORIG-GUID": "qOWcdQT6h-FZLj88g35R7GzM_c--ATWh", "X-Proofpoint-GUID": "qOWcdQT6h-FZLj88g35R7GzM_c--ATWh", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDAyMDExNSBTYWx0ZWRfX5uxam3ss15F3\n 4RO53uFgLrCAOs/3dZC6YT5uVV9C2BwyJ2L09ZXmhQ6yUdcF8wepNv4ITXS2weBUOPlX3NzJa4l\n XF0h5GmruRgYkZl9T5pcza6KC+bDbXNDRwpaVAPFR1D+qupQUjEG9zKAuvvC9/ucsfFezMCmR+q\n dUmcFQI+/x5roJ0XQbto/vK8FY4aY03g0E6Ki475emcCFNzkLal+JVA3nNuUQBCeVJsWSzZoX9+\n v6xPjp5geZXyZEfoRqjPh9aOG4ccelgbVA7Z5ArMTwmTkJfTa+WuIgdYWMDGyrW0YguwKmxh0FQ\n zIEhovkqq3rhTp96H4QQUxDa7AZPMLJEYCQdptsyP7ed/7HttwCCorEwca8xzyzm7Y4xfcshFdn\n sq8RaT7ityPrujdo03BGZ220S9pTyR9wWr3N00fRORN0aCTtBUz70Olly0EPvuUpl+Y5RO+80GE\n Txo3mp0OEDyMjdiZc+g==", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-02_01,2026-04-02_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n lowpriorityscore=0 clxscore=1015 priorityscore=1501 adultscore=0\n malwarescore=0 impostorscore=0 bulkscore=0 phishscore=0 spamscore=0\n suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc=\n route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001\n definitions=main-2604020115" }, "content": "fwnode_property_get_reference_args() now returns -ENXIO when called on a\nsoftware node referencing another software node which has not yet been\nregistered as a firmware node. It makes sense to defer probe in this\nsituation as the node will most likely be registered later on and we'll\nbe able to resolve the reference eventually. Change the behavior of\nswnode_find_gpio() to return -EPROBE_DEFER if the software node reference\nresolution returns -ENXIO.\n\nSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>\n---\n drivers/gpio/gpiolib-swnode.c | 9 +++++++++\n 1 file changed, 9 insertions(+)", "diff": "diff --git a/drivers/gpio/gpiolib-swnode.c b/drivers/gpio/gpiolib-swnode.c\nindex 0d7f3f09a0b4bee0cf1bbdaa8b7b8ae4cd5de581..06d74e9e199de0b91a019e5e15d4b83d330291e7 100644\n--- a/drivers/gpio/gpiolib-swnode.c\n+++ b/drivers/gpio/gpiolib-swnode.c\n@@ -95,6 +95,15 @@ struct gpio_desc *swnode_find_gpio(struct fwnode_handle *fwnode,\n \t\t\tbreak;\n \t}\n \tif (ret) {\n+\t\tif (ret == -ENXIO)\n+\t\t\t/*\n+\t\t\t * -ENXIO for a software node reference lookup means\n+\t\t\t * that a remote struct software_node exists but has\n+\t\t\t * not yet been registered as a firmware node. Defer\n+\t\t\t * until this happens.\n+\t\t\t */\n+\t\t\treturn ERR_PTR(-EPROBE_DEFER);\n+\n \t\tpr_debug(\"%s: can't parse '%s' property of node '%pfwP[%d]'\\n\",\n \t\t\t__func__, propname, fwnode, idx);\n \t\treturn ERR_PTR(ret);\n", "prefixes": [ "v2", "2/4" ] }