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if (!of_node_check_flag(rd->dn, OF_POPULATED)) { - /* - * Clear the flag before adding the device so that - * fw_devlink doesn't skip adding consumers to this - * device. - */ - rd->dn->fwnode.flags &= ~FWNODE_FLAG_NOT_DEVICE; if (!of_platform_device_create(rd->dn, NULL, &pdev->dev)) { dev_err(&pdev->dev, "Failed to create child device '%pOF'\n", diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c index a6c407d36800..a250921bbce0 100644 --- a/drivers/i2c/i2c-core-of.c +++ b/drivers/i2c/i2c-core-of.c @@ -178,11 +178,6 @@ static int of_i2c_notify(struct notifier_block *nb, unsigned long action, return NOTIFY_OK; } - /* - * Clear the flag before adding the device so that fw_devlink - * doesn't skip adding consumers to this device. - */ - rd->dn->fwnode.flags &= ~FWNODE_FLAG_NOT_DEVICE; client = of_i2c_register_device(adap, rd->dn); if (IS_ERR(client)) { dev_err(&adap->dev, "failed to create client for '%pOF'\n", diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c index 4d57a4e34105..19a1a38554f2 100644 --- a/drivers/of/dynamic.c +++ b/drivers/of/dynamic.c @@ -224,7 +224,6 @@ static void __of_attach_node(struct device_node *np) np->sibling = np->parent->child; np->parent->child = np; of_node_clear_flag(np, OF_DETACHED); - np->fwnode.flags |= FWNODE_FLAG_NOT_DEVICE; raw_spin_unlock_irqrestore(&devtree_lock, flags); diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 389d4ea6bfc1..efd861fa254f 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -743,11 +743,6 @@ static int of_platform_notify(struct notifier_block *nb, if (of_node_check_flag(rd->dn, OF_POPULATED)) return NOTIFY_OK; - /* - * Clear the flag before adding the device so that fw_devlink - * doesn't skip adding consumers to this device. - */ - rd->dn->fwnode.flags &= ~FWNODE_FLAG_NOT_DEVICE; /* pdev_parent may be NULL when no bus platform device */ pdev_parent = of_find_device_by_node(rd->dn->parent); pdev = of_platform_device_create(rd->dn, NULL, diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index ff75838c1b5d..17cd417f7681 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -4761,11 +4761,6 @@ static int of_spi_notify(struct notifier_block *nb, unsigned long action, return NOTIFY_OK; } - /* - * Clear the flag before adding the device so that fw_devlink - * doesn't skip adding consumers to this device. - */ - rd->dn->fwnode.flags &= ~FWNODE_FLAG_NOT_DEVICE; spi = of_register_spi_device(ctlr, rd->dn); put_device(&ctlr->dev); From patchwork Tue Apr 9 05:37:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 787402 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1FD7A138E for ; Tue, 9 Apr 2024 05:37:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712641039; cv=none; b=UQAdQsT3F7F2ISzTgWN/+iHmNwAMUDc9QAl7R+X6rKFeVYrYNRMx1oQoZxbgUzcd7ZDVVnXo9vcqQD7XrXUc00AiuQqJv06f6VNS+ygXa4UbtnJrCDcbxrsre4cQpsgeLO0gz53fZ/vivfX1DYzc6SP8wOG2BZbjt3xGi+7k7O0= ARC-Message-Signature: i=1; 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Signed-off-by: Saravana Kannan --- drivers/base/core.c | 23 +++++++++++++++++++++++ drivers/of/dynamic.c | 1 + include/linux/fwnode.h | 1 + 3 files changed, 25 insertions(+) diff --git a/drivers/base/core.c b/drivers/base/core.c index 5f4e03336e68..5ce33dbd7560 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -237,6 +237,29 @@ static void __fw_devlink_pickup_dangling_consumers(struct fwnode_handle *fwnode, __fw_devlink_pickup_dangling_consumers(child, new_sup); } + +void fw_devlink_fixup_new_fwnode(struct fwnode_handle *new_fwnode) +{ + struct fwnode_handle *parent; + + if (new_fwnode->dev && new_fwnode->dev->bus) + return; + + fwnode_for_each_parent_node(new_fwnode, parent) + if (parent->dev && parent->dev->bus) + break; + + if (!parent) + return; + + mutex_lock(&fwnode_link_lock); + __fw_devlink_pickup_dangling_consumers(new_fwnode, parent); + __fw_devlink_link_to_consumers(parent->dev); + mutex_unlock(&fwnode_link_lock); + + fwnode_handle_put(parent); +} + static DEFINE_MUTEX(device_links_lock); DEFINE_STATIC_SRCU(device_links_srcu); diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c index 19a1a38554f2..a2ad79ea9a06 100644 --- a/drivers/of/dynamic.c +++ b/drivers/of/dynamic.c @@ -581,6 +581,7 @@ static int __of_changeset_entry_notify(struct of_changeset_entry *ce, memset(&rd, 0, sizeof(rd)); rd.dn = ce->np; ret = of_reconfig_notify(ce->action, &rd); + fw_devlink_fixup_new_fwnode(of_fwnode_handle(ce->np)); break; case OF_RECONFIG_ADD_PROPERTY: case OF_RECONFIG_REMOVE_PROPERTY: diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index 0d79070c5a70..230aeccef6f3 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -220,6 +220,7 @@ int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup, u8 flags); void fwnode_links_purge(struct fwnode_handle *fwnode); void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode); +void fw_devlink_fixup_new_fwnode(struct fwnode_handle *new_fwnode); bool fw_devlink_is_strict(void); #endif