From patchwork Thu Mar 12 13:23:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11434199 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C596514E5 for ; Thu, 12 Mar 2020 13:25:01 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A2ED9206BE for ; Thu, 12 Mar 2020 13:25:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="hznXQYqX"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="J29DnIDj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A2ED9206BE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc: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:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=AdDR6kc7Az7+sRbO5NcRY5kkdnK3ygQFSj0M/EKxJ3s=; b=hznXQYqXHRtB0N XuX9WWndvOVfGxvOKVpcoK3woO+rxJAcuuc+4W5Qy6w9zBiRXNDLKVdi6kodRhrzXRBFdr/L3GisG BJofC5G05+DRkpAIvx2Tsg+VIBjoaRPfAeef9y2VY8yns/IY4zwyVOpLs9M3B1RYHLWK1aK3uDQgh 1ks5Rli253CP/nf0FX2d8RFRyicZgvyET9BkP9H3s5pij6Af8CYDtwlaZKVXr/+rmxHEvFls3fqlI M72rL1mxkhuGN8TbJyNmQ/5SmthFyaVwy7bbwaKNhW4Jhl+baM9G9qjzlFSI822w/CsU7MTxuz+q+ oxJxm/qJitDsZkI9X7fA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jCNpZ-0006Kw-7p; Thu, 12 Mar 2020 13:24:57 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jCNof-0005Dm-GU; Thu, 12 Mar 2020 13:24:03 +0000 X-UUID: 7b98413495634f458b20c4f30fee7632-20200312 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=GAb0a+7kM9bfrtZJR62MQdr6XS0ZdbXUK5GgYwszV3c=; b=J29DnIDjRdt7jZoMClc2x//t9jYMWXrRg+M6kExI1yTvR5kq1jxrTeQcBdUjku9CqufmQuyLfeEjqdAjx1R+ZR1PVO8enn7EQbZ7DvGKbny7Xp/UeTUS0GQxD9tYSr4q71EhA/9YjlCPaC/SQHuDe8sf/SwrkeL6RU4zUKxO+pA=; X-UUID: 7b98413495634f458b20c4f30fee7632-20200312 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 169665736; Thu, 12 Mar 2020 05:23:54 -0800 Received: from mtkmbs05n1.mediatek.inc (172.21.101.15) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 12 Mar 2020 06:24:02 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 12 Mar 2020 21:22:38 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 12 Mar 2020 21:21:03 +0800 From: Stanley Chu To: , , , , Subject: [PATCH v3 8/8] scsi: ufs-mediatek: customize the delay for host enabling Date: Thu, 12 Mar 2020 21:23:50 +0800 Message-ID: <20200312132350.18061-9-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200312132350.18061-1-stanley.chu@mediatek.com> References: <20200312132350.18061-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200312_062401_576039_9AABC1C8 X-CRM114-Status: UNSURE ( 9.77 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [216.200.240.184 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stanley Chu , bvanassche@acm.org, andy.teng@mediatek.com, chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com, linux-kernel@vger.kernel.org, cang@codeaurora.org, linux-mediatek@lists.infradead.org, peter.wang@mediatek.com, matthias.bgg@gmail.com, beanhuo@micron.com, linux-arm-kernel@lists.infradead.org, asutoshd@codeaurora.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org MediaTek platform and UFS controller can dynamically customize the delay for host enabling according to different scenarios. For example, for host initialization with low-level MPHY calibration required, longer delay shall be expected. But the delay could be removed if such MPHY calibration can be skipped, like resume flow. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufs-mediatek.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 0ff6781654fd..6f437f0091bf 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -71,6 +71,19 @@ static void ufs_mtk_cfg_unipro_cg(struct ufs_hba *hba, bool enable) } } +static int ufs_mtk_hce_enable_notify(struct ufs_hba *hba, + enum ufs_notify_change_status status) +{ + if (status == PRE_CHANGE) { + if (hba->pm_op_in_progress) + hba->hba_enable_delay_us = 0; + else + hba->hba_enable_delay_us = 100; + } + + return 0; +} + static int ufs_mtk_bind_mphy(struct ufs_hba *hba) { struct ufs_mtk_host *host = ufshcd_get_variant(hba); @@ -552,6 +565,7 @@ static struct ufs_hba_variant_ops ufs_hba_mtk_vops = { .name = "mediatek.ufshci", .init = ufs_mtk_init, .setup_clocks = ufs_mtk_setup_clocks, + .hce_enable_notify = ufs_mtk_hce_enable_notify, .link_startup_notify = ufs_mtk_link_startup_notify, .pwr_change_notify = ufs_mtk_pwr_change_notify, .apply_dev_quirks = ufs_mtk_apply_dev_quirks,