From patchwork Tue Feb 21 15:28:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 13148069 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1CCF2C636D7 for ; Tue, 21 Feb 2023 15:29:39 +0000 (UTC) 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:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DRHhoHQcCkA3I4+8SIpx8sedQ+DPVEFkDK0lsQTEgAA=; b=QVl4wBqkZMNHLb uuIypYCWnZaVAK5yumjotOwiJNXX7jFid7s9kHWh0CpimMXWrHugSQVbBmuDZQXrdkO50YpZdLY/Q Adx4JHDMGdqpZ8d3EFE//Iibeuf0OwarmIe43Zf8H3sJYPsZ1sMrNaOJ6GZ3kX08BZPZS26MlpDpr AarBlqGTdowVPkY0epJwakRrMtiHunpAAq5e9rY+O39irFA9iYTqHI6pBZbzEx2YXU8ZlSAAI78dd X94ZvVxVTxf3L3IO9dqHcoOsWZa+EJjuH8tSUlliqmo6AnWX7FEteNFcrYubCbpy9uzwxLd2yvfPg Y7874El2goP9EKFWCoFA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pUUZS-008fEn-Bs; Tue, 21 Feb 2023 15:28:46 +0000 Received: from phobos.denx.de ([2a01:238:438b:c500:173d:9f52:ddab:ee01]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pUUZ3-008f6a-JJ for linux-arm-kernel@lists.infradead.org; Tue, 21 Feb 2023 15:28:23 +0000 Received: from tr.lan (ip-86-49-120-218.bb.vodafone.cz [86.49.120.218]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 8C1F6859EE; Tue, 21 Feb 2023 16:28:17 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1676993298; bh=IJBqQ2/VP+or5+tz9jao7x/H6C+Ut0rSs9s79xfWqN4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qfrzj8gFWOuZRz3BwDZvNxjpPGiGPxtajOABVADQA6F310uSgR1NX203fWFB+ldTR Nv+PMYOrfqP4voxpCZ1vGRQXCtPhiDOJiDmVwArsDR32Ao303+QgwgABMzVCkB5wiA YMPpQiUva+g63JzzdjdrrFbMkA7emIlebnTYZmmyIL7bONa+UfuQOq+nPnfrIoTiBr /Io8eABiO8EJeI8d8sbD98ZsGfsl1io/9Hstq0geVSq4beg6iZNNEi6IauYLik0VNc o8Dltd8S1dkhmCMICVdnOPktjbkFNFdM6Go7BxiH2dV0qyZ8x7FJECWajkot0kKCEC QipZCGH0ZXW4A== From: Marek Vasut To: linux-arm-kernel@lists.infradead.org Cc: Marek Vasut , Liu Ying , Alexander Stein , Fabio Estevam , Krzysztof Kozlowski , Laurent Pinchart , Lucas Stach , NXP Linux Team , Paul Elder , Peng Fan , Pengutronix Kernel Team , Richard Cochran , Richard Zhu , Rob Herring , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org Subject: [PATCH v3 3/4] soc: imx: imx8m-blk-ctrl: Scan subnodes and bind drivers to them Date: Tue, 21 Feb 2023 16:28:03 +0100 Message-Id: <20230221152804.6061-3-marex@denx.de> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230221152804.6061-1-marex@denx.de> References: <20230221152804.6061-1-marex@denx.de> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.6 at phobos.denx.de X-Virus-Status: Clean X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230221_072821_963749_9B1ECA31 X-CRM114-Status: GOOD ( 15.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This particular block can have DT subnodes describing the LVDS LDB bridge. Instead of misusing simple-bus to scan for those nodes, do the scan within the driver. Reviewed-by: Liu Ying Fixes: 94e6197dadc9 ("arm64: dts: imx8mp: Add LCDIF2 & LDB nodes") Signed-off-by: Marek Vasut --- Cc: Alexander Stein Cc: Fabio Estevam Cc: Krzysztof Kozlowski Cc: Laurent Pinchart Cc: Lucas Stach Cc: NXP Linux Team Cc: Paul Elder Cc: Peng Fan Cc: Pengutronix Kernel Team Cc: Richard Cochran Cc: Richard Zhu Cc: Rob Herring Cc: Sascha Hauer Cc: Shawn Guo Cc: devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org --- V2: - Turn this into 3/4 - Warn and continue in case of error V3: Add RB from Liu --- drivers/soc/imx/imx8m-blk-ctrl.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/soc/imx/imx8m-blk-ctrl.c b/drivers/soc/imx/imx8m-blk-ctrl.c index 399cb85105a18..4f5736e612fb0 100644 --- a/drivers/soc/imx/imx8m-blk-ctrl.c +++ b/drivers/soc/imx/imx8m-blk-ctrl.c @@ -169,7 +169,9 @@ static int imx8m_blk_ctrl_probe(struct platform_device *pdev) { const struct imx8m_blk_ctrl_data *bc_data; struct device *dev = &pdev->dev; + struct platform_device *child; struct imx8m_blk_ctrl *bc; + struct device_node *np; void __iomem *base; int i, ret; @@ -310,6 +312,13 @@ static int imx8m_blk_ctrl_probe(struct platform_device *pdev) dev_set_drvdata(dev, bc); + for_each_child_of_node(dev->of_node, np) { + child = of_platform_device_create(np, NULL, dev); + if (child) + continue; + dev_warn(dev, "failed to create device for %pOF\n", np); + } + return 0; cleanup_provider: