From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 08 Mar 2023 15:27:06 +0100 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1pZukz-00Dfaz-3r for lore@lore.pengutronix.de; Wed, 08 Mar 2023 15:27:06 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pZuks-0003dO-V7 for lore@pengutronix.de; Wed, 08 Mar 2023 15:27:05 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=sjPB0ux1aVJRqjSXcW32awjJX3ET8e5mvvej3Fm4i3Q=; b=razlkJ71B2h/egOjEBVaBdAlcN S7YK5eQH42W86ljZXXh4nR5C3Ghmzd95gfHtAPl7GCLRGo65rtmNM1x8Elbb7VBeClRJ1c0FTiml8 DoaIlIPgtz/C1sMRFakSVXbEVXUmwkLETmxdGKZAFKfxZAdgjYiv2294fm9feYJF5F67CdM5TZrk9 IPM1hXdvi2edQykdx7yD1jUa0iqXnVkT5DT1f7BysNiZiS0DrnMgKxIwUWIM/tSjkDDipq8ih7CKA wGBAcvLV8mrWMDBCPshztUYSsp09ELxVNp+ne0ah3kbNpqayzm0T+hnVxqPvVknKp2kY/Dhyowtgo CGyRuAqw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pZujQ-005QpT-0l; Wed, 08 Mar 2023 14:25:28 +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 1pZujF-005Qkz-2e for barebox@lists.infradead.org; Wed, 08 Mar 2023 14:25:20 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pZuj6-0002wq-BB; Wed, 08 Mar 2023 15:25:08 +0100 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pZuQN-002jG7-Ur; Wed, 08 Mar 2023 15:05:47 +0100 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pZuQM-00E7m9-Fw; Wed, 08 Mar 2023 15:05:46 +0100 From: Sascha Hauer To: Barebox List Date: Wed, 8 Mar 2023 15:05:40 +0100 Message-Id: <20230308140545.3366052-3-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230308140545.3366052-1-s.hauer@pengutronix.de> References: <20230308140545.3366052-1-s.hauer@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230308_062517_336284_A98D5AFF X-CRM114-Status: GOOD ( 19.76 ) 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: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::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=-4.9 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 2/7] driver: Add rescan hook to struct device 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) When devices are enabled with a device tree overlay the newly enabled devices can be probed by doing a of_probe(). This works fine for the regular platform devices, but doesn't work for devices which are not probed by the core, but by the subsystem. Prominent examples are I2C or SPI devices. This patch adds a struct device::rescan hook that subsystems can implement to trigger rescanning the device nodes. Signed-off-by: Sascha Hauer --- drivers/of/platform.c | 5 ++++- include/driver.h | 1 + 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index edb082b106..e688075f16 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -153,8 +153,11 @@ struct device *of_platform_device_create(struct device_node *np, * Linux uses the OF_POPULATED flag to skip already populated/created * devices. */ - if (np->dev) + if (np->dev) { + if (np->dev->rescan) + np->dev->rescan(np->dev); return np->dev; + } /* count the io resources */ if (of_can_translate_address(np)) diff --git a/include/driver.h b/include/driver.h index f53668711b..205f232753 100644 --- a/include/driver.h +++ b/include/driver.h @@ -91,6 +91,7 @@ struct device { * when the driver should actually detect client devices */ int (*detect) (struct device *); + int (*rescan) (struct device *); /* * if a driver probe is deferred, this stores the last error -- 2.30.2