From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 25 Jun 2021 09:46:11 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1lwgXT-0007rQ-Qs for lore@lore.pengutronix.de; Fri, 25 Jun 2021 09:46:11 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lwgXS-0005Vx-AM for lore@pengutronix.de; Fri, 25 Jun 2021 09:46:11 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=M3QF5/eyypALH00lPS2Nd4LZvY9I2dlv3G48M4SD338=; b=rK7KZxdKVLQTVn qcoBlkVUROmwwcX3T8ZEez9hxgTLq3DzSr7YMayr6Rgo3pqQjwMAEd6k14UMoffB667CtY4YE0pNi RG6NzCF6sTxJ7bYpWKLb+QF0DV0dR00PqEpXvf4MW6aFpvGB2JVFMTcx0fvis4PzDh1ki35R//4vj TyVkTTYq6FUX1OLrvZ00qwPwwLm6nzpH9rZxR04iiQS468lavix7vO773w0SLqvhMrm4DlamtTzyB yZLPXaamG+shA0CjYPPOxIPMKddVEkkAuOOESQ1eNvw44I6dm87xKfOS2XqM4UNu3qSW9jBKCVENc CALs5xTcb8yIpNEutdrg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lwgW0-0005jY-Nr; Fri, 25 Jun 2021 07:44:40 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lwgDl-00HZ1l-4d for barebox@lists.infradead.org; Fri, 25 Jun 2021 07:25:50 +0000 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lwgDe-0002Qo-N3; Fri, 25 Jun 2021 09:25:42 +0200 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1lwgDd-0000do-Hs; Fri, 25 Jun 2021 09:25:41 +0200 From: Sascha Hauer To: Barebox List Date: Fri, 25 Jun 2021 09:25:40 +0200 Message-Id: <20210625072540.32717-20-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210625072540.32717-1-s.hauer@pengutronix.de> References: <20210625072540.32717-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210625_002549_259170_2B4A80DE X-CRM114-Status: GOOD ( 16.84 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:e::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-3.9 required=4.0 tests=AWL,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 19/19] of: Add dummy driver X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) With deep probe support we decide that a device for a new device node is available when the device has a driver. It sometimes happens that a consumer of a device node doesn't point to the node to which the driver is attached to, but instead a subnode, like this: usb2phy0: usb2-phy@fe8a0000 { compatible = "rockchip,rk3568-usb2phy"; u2phy0_host: host-port { status = "disabled"; }; }; usbhost_dwc3: dwc3@fd000000 { compatible = "snps,dwc3"; phys = <&u2phy0_host>; phy-names = "usb2-phy"; }; of_device_ensure_probed() would now expect a driver for the &u2phy0_host node, but the driver is attached to the &usb2phy0 node. This patch adds of_platform_device_dummy_drv() which can be used in such situations. When called on the &u2phy0_host it will attach a dummy driver to it so that deep probe is happy. Signed-off-by: Sascha Hauer --- drivers/of/platform.c | 9 +++++++++ include/of.h | 5 +++++ 2 files changed, 14 insertions(+) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index bc0477be1d..e3e8227b8c 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -169,6 +169,15 @@ struct device_d *of_platform_device_create(struct device_node *np, return NULL; } +struct driver_d dummy_driver = { + .name = "dummy-driver", +}; + +void of_platform_device_dummy_drv(struct device_d *dev) +{ + dev->driver = &dummy_driver; +} + /** * of_device_enable_and_register - Enable and register device * @np: pointer to node to enable create device for diff --git a/include/of.h b/include/of.h index 98de9d8480..6f1ec94e7e 100644 --- a/include/of.h +++ b/include/of.h @@ -268,6 +268,7 @@ extern int barebox_register_fdt(const void *dtb); extern struct device_d *of_platform_device_create(struct device_node *np, struct device_d *parent); +extern void of_platform_device_dummy_drv(struct device_d *dev); extern int of_platform_populate(struct device_node *root, const struct of_device_id *matches, struct device_d *parent); @@ -365,6 +366,10 @@ static inline struct device_d *of_platform_device_create(struct device_node *np, return NULL; } +static inline void of_platform_device_dummy_drv(struct device_d *dev) +{ +} + static inline int of_device_ensure_probed(struct device_node *np) { return 0; -- 2.29.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox