{"id":2223791,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2223791/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/patch/726ccc71593f6c224c13142a0bd4a9f6f0f81445.1776326933.git.weijie.gao@mediatek.com/","project":{"id":18,"url":"http://patchwork.ozlabs.org/api/1.1/projects/18/?format=json","name":"U-Boot","link_name":"uboot","list_id":"u-boot.lists.denx.de","list_email":"u-boot@lists.denx.de","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<726ccc71593f6c224c13142a0bd4a9f6f0f81445.1776326933.git.weijie.gao@mediatek.com>","date":"2026-04-16T08:23:05","name":"[v2,2/3] clk: mediatek: add grandparent variable in mtk_find_parent_rate()","commit_ref":null,"pull_url":null,"state":"accepted","archived":false,"hash":"d5b69cf66cb9b807cb95d7d9537b2128e9ced87d","submitter":{"id":75269,"url":"http://patchwork.ozlabs.org/api/1.1/people/75269/?format=json","name":"Weijie Gao","email":"weijie.gao@mediatek.com"},"delegate":{"id":161331,"url":"http://patchwork.ozlabs.org/api/1.1/users/161331/?format=json","username":"dlech","first_name":"David","last_name":"Lechner","email":"dlechner@baylibre.com"},"mbox":"http://patchwork.ozlabs.org/project/uboot/patch/726ccc71593f6c224c13142a0bd4a9f6f0f81445.1776326933.git.weijie.gao@mediatek.com/mbox/","series":[{"id":500106,"url":"http://patchwork.ozlabs.org/api/1.1/series/500106/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/list/?series=500106","date":"2026-04-16T08:22:51","name":"Fixes for parent rate lookup of mediatek clk driver","version":2,"mbox":"http://patchwork.ozlabs.org/series/500106/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2223791/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2223791/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=mediatek.com header.i=@mediatek.com header.a=rsa-sha256\n header.s=dk header.b=LNbPBOzc;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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Thu, 16 Apr 2026 10:23:16 +0200 (CEST)","from mailgw02.mediatek.com (unknown [210.61.82.184])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))\n (No client certificate requested)\n by phobos.denx.de (Postfix) with ESMTPS id 3D7D084201\n for ; Thu, 16 Apr 2026 10:23:13 +0200 (CEST)","from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by\n mailgw02.mediatek.com (envelope-from )\n (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256)\n with ESMTP id 1918007631; Thu, 16 Apr 2026 16:23:09 +0800","from mtkmbs13n1.mediatek.inc (172.21.101.193) by\n MTKMBS14N1.mediatek.inc (172.21.101.75) with Microsoft SMTP Server\n (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n 15.2.2562.29; Thu, 16 Apr 2026 16:23:08 +0800","from mcddlt001.gcn.mediatek.inc (10.19.240.15) by\n mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id\n 15.2.2562.29 via Frontend Transport; Thu, 16 Apr 2026 16:23:07 +0800"],"X-Spam-Checker-Version":"SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de","X-Spam-Level":"","X-Spam-Status":"No, score=-1.3 required=5.0 tests=BAYES_00,DKIM_SIGNED,\n DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED,\n RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,RCVD_IN_VALIDITY_CERTIFIED_BLOCKED,\n RCVD_IN_VALIDITY_RPBL_BLOCKED,RDNS_NONE,SPF_HELO_PASS,SPF_PASS,\n UNPARSEABLE_RELAY autolearn=no autolearn_force=no version=3.4.2","X-UUID":["80c78b92396d11f19a16598d5ca7f8ec-20260416","80c78b92396d11f19a16598d5ca7f8ec-20260416"],"DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n d=mediatek.com;\n s=dk;\n h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From;\n bh=EYDqoEqN/Ye1QHUztS1BfiblXBdEEf9ZRWDeR7R+K34=;\n b=LNbPBOzcLqvlai/8XJgAk4j0+rlEcrk6P4q+I4ZlAN+1IYnGO8VF+N/9tDav2tqozkGulpw7ZBmgazxxwMoW4+4kDQEx0b1+rwLCYC2l01vXHIbeC59BzHigTWDWOxPtMt0VA+3UIogn6zmPrr3D+YThgtWVfnFJR0BfERnlUF4=;","X-CID-P-RULE":"Release_Ham","X-CID-O-INFO":"VERSION:1.3.12, REQID:0dffbdcc-5ce3-4b14-9baa-b61afbe8bee3,\n IP:0,\n U\n RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION:\n release,TS:0","X-CID-META":"VersionHash:e7bac3a, CLOUDID:ca227e8f-6df4-4a3d-a7a4-fbdc42d669ce,\n B\n ulkID:nil,BulkQuantity:0,Recheck:0,SF:81|82|102|836|865|888|898,TC:-5,Cont\n ent:0|15|50,EDM:-3,IP:nil,URL:0,File:130,RT:0,Bulk:nil,QS:nil,BEC:-1,COL:0\n ,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0","X-CID-BVR":"2,SSN|SDN","X-CID-BAS":"2,SSN|SDN,0,_","X-CID-FACTOR":"TF_CID_SPAM_SNR","X-CID-RHF":"D41D8CD98F00B204E9800998ECF8427E","From":"Weijie Gao ","To":"","CC":"GSS_MTK_Uboot_upstream , Tom Rini\n , David Lechner , Julien Stephan\n , Macpaul Lin , Sam Shih\n , Weijie Gao ","Subject":"[PATCH v2 2/3] clk: mediatek: add grandparent variable in\n mtk_find_parent_rate()","Date":"Thu, 16 Apr 2026 16:23:05 +0800","Message-ID":"\n <726ccc71593f6c224c13142a0bd4a9f6f0f81445.1776326933.git.weijie.gao@mediatek.com>","X-Mailer":"git-send-email 2.17.0","In-Reply-To":"","References":"","MIME-Version":"1.0","Content-Type":"text/plain","X-MTK":"N","X-BeenThere":"u-boot@lists.denx.de","X-Mailman-Version":"2.1.39","Precedence":"list","List-Id":"U-Boot discussion ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"u-boot-bounces@lists.denx.de","Sender":"\"U-Boot\" ","X-Virus-Scanned":"clamav-milter 0.103.8 at phobos.denx.de","X-Virus-Status":"Clean"},"content":"From: Sam Shih \n\nAdd grandparent device variable in mtk_find_parent_rate() to allow\nthe grandparent device being reused instead of calling\ndev_get_parent(priv->parent) multiple times.\n\nSigned-off-by: Sam Shih \nSigned-off-by: Weijie Gao \n---\n drivers/clk/mediatek/clk-mtk.c | 11 +++++++----\n 1 file changed, 7 insertions(+), 4 deletions(-)","diff":"diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c\nindex 4adec4457b4..f974f0f2432 100644\n--- a/drivers/clk/mediatek/clk-mtk.c\n+++ b/drivers/clk/mediatek/clk-mtk.c\n@@ -216,11 +216,14 @@ static ulong mtk_find_parent_rate(struct mtk_clk_priv *priv, struct clk *clk,\n \t\t\tparent_dev = clk->dev;\n \t\telse if (dev_get_driver_ops(priv->parent) == &mtk_clk_apmixedsys_ops)\n \t\t\tparent_dev = priv->parent;\n-\t\telse if (dev_get_driver_ops(dev_get_parent(priv->parent)) == &mtk_clk_apmixedsys_ops)\n-\t\t\tparent_dev = dev_get_parent(priv->parent);\n-\t\telse\n-\t\t\treturn -EINVAL;\n+\t\telse {\n+\t\t\tstruct udevice *grandparent_dev = dev_get_parent(priv->parent);\n \n+\t\t\tif (dev_get_driver_ops(grandparent_dev) == &mtk_clk_apmixedsys_ops)\n+\t\t\t\tparent_dev = grandparent_dev;\n+\t\t\telse\n+\t\t\t\treturn -EINVAL;\n+\t\t}\n \t\tbreak;\n \tcase CLK_PARENT_TOPCKGEN:\n \t\tif (dev_get_driver_ops(clk->dev) == &mtk_clk_topckgen_ops)\n","prefixes":["v2","2/3"]}