From patchwork Fri Dec 22 06:22:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mengqi Zhang X-Patchwork-Id: 13502997 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 E5E35C41535 for ; Fri, 22 Dec 2023 06:23:29 +0000 (UTC) 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-Type: Content-Transfer-Encoding:MIME-Version: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:In-Reply-To:References:List-Owner; bh=3CfXjXK+ifyxmF7/x1t1E1bQ/x/4s3uHJnnqwy/VaAM=; b=CHO+nrfCxJudrYDEoE9ybCDqCn Kmd9X5ln+g8GjmoZ/sTgBQPNn/fIHDXDiS1shHU9oR6IXpo5gpALXu3vE5i9jaQTFCn9m9XDtDzF+ GviMHYOY3DxliVb/egIa7S3266Ep/YKEw4G5fE+v6qvgBrMuo5K6W9bbxEajce4p/9vIOIusLPjnU CfrRWb6fMq9Ezfjvi9l3vo5GS1W3cvnYlKQpt/Z2gJ1r1jUwTPWvZUATKwYNfFZHhyJi29mKrh21Y jINYdxbddN94zBrX3fW/USitAfWtRKYtNoR6VKaJQgY7NR1eTsISKZsNdSQvlpyOiNXP1nQBrSm+Z Ud9UH6/g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rGYwT-0054Bt-00; Fri, 22 Dec 2023 06:23:29 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rGYwQ-0054Ao-1w; Fri, 22 Dec 2023 06:23:27 +0000 X-UUID: 987682aaa09211ee958cff29c719f35b-20231221 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=3CfXjXK+ifyxmF7/x1t1E1bQ/x/4s3uHJnnqwy/VaAM=; b=uAlROctzkydn8hC38n5GO5+RLgEqs+x6W5c7fPpc1+uLHIkTmv5zOlBaRIA4A1r+7jvfl7wMW2HOWls8EAZ+w5Ym/czxCPIyBygf7ZgwHjWZy/lYTt8Bt1DYdkugXAxewPI7tDoV/1Hjo5enttWauoLdzlheUKO/YwXOnBi58kA=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.35,REQID:c142b980-457e-4775-b662-9f7851a43074,IP:0,U RL:0,TC:0,Content:-5,EDM:-30,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:-35 X-CID-META: VersionHash:5d391d7,CLOUDID:07b10d82-8d4f-477b-89d2-1e3bdbef96d1,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:2,IP:nil,UR L:1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,D KR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULS X-UUID: 987682aaa09211ee958cff29c719f35b-20231221 Received: from mtkmbs13n1.mediatek.inc [(172.21.101.193)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1989942330; Thu, 21 Dec 2023 23:23:17 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 22 Dec 2023 14:22:44 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 22 Dec 2023 14:22:43 +0800 From: Mengqi Zhang To: , , , , CC: , , , , , , , Subject: [PATCH v2 1/1] mmc: core: Add HS400 tuning in HS400es initialization Date: Fri, 22 Dec 2023 14:22:36 +0800 Message-ID: <20231222062236.26370-1-mengqi.zhang@mediatek.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231221_222326_641549_BE1F4E28 X-CRM114-Status: GOOD ( 12.90 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org During the initialization to HS400es stage, add hs400 tuning flow as an optional process. For Mediatek IP, HS00es mode requires a specific tuning to ensure the correct HS400 timing setting. Signed-off-by: Mengqi Zhang --- the previous patch link: https://patchwork.kernel.org/project/linux-mediatek/patch/20231201030547.11553-1-mengqi.zhang@mediatek.com/ --- drivers/mmc/core/mmc.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 705942edacc6..9760eea2c104 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1823,7 +1823,15 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, if (err) goto free_card; - } else if (!mmc_card_hs400es(card)) { + } else if (mmc_card_hs400es(card)) { + if (host->ops->execute_hs400_tuning) { + mmc_retune_disable(host); + err = host->ops->execute_hs400_tuning(host, card); + mmc_retune_enable(host); + if (err) + goto free_card; + } + } else { /* Select the desired bus width optionally */ err = mmc_select_bus_width(card); if (err > 0 && mmc_card_hs(card)) {