From patchwork Wed Jul 14 07:11:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chanho Park X-Patchwork-Id: 477806 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40BA6C11F72 for ; Wed, 14 Jul 2021 07:12:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2C0F5613AA for ; Wed, 14 Jul 2021 07:12:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238251AbhGNHPF (ORCPT ); Wed, 14 Jul 2021 03:15:05 -0400 Received: from mailout4.samsung.com ([203.254.224.34]:31112 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238240AbhGNHO6 (ORCPT ); Wed, 14 Jul 2021 03:14:58 -0400 Received: from epcas2p2.samsung.com (unknown [182.195.41.54]) by mailout4.samsung.com (KnoxPortal) with ESMTP id 20210714071201epoutp04d7989f9320964aa80ed7ca19c59e9a18~RlscE-ucw0822208222epoutp04F for ; Wed, 14 Jul 2021 07:12:01 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout4.samsung.com 20210714071201epoutp04d7989f9320964aa80ed7ca19c59e9a18~RlscE-ucw0822208222epoutp04F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1626246722; bh=nMElEhDOh+0gZSWQnKtzixOmaoeS4v1nCMxL6Kc/MxI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ly2YSvKBFErC+am3j/bBAmpRh2JP3IfD6yr7CnVelvb0M+XlS7fD8LWqSPk4uCCzB z9zD4V4rw55wj96yX2f8PVNf6i5RxkkqpwNaeE1wJopbbGeyqaoeEXOp/T6SJ5HD9J zbF9A2nzsRn/9bFc1L1h/BBtsMuCu48DjFMcv9gs= Received: from epsnrtp1.localdomain (unknown [182.195.42.162]) by epcas2p4.samsung.com (KnoxPortal) with ESMTP id 20210714071201epcas2p4371ef76c00a3c60871a13e33c945c8e2~RlsbTZVRh2506225062epcas2p4q; Wed, 14 Jul 2021 07:12:01 +0000 (GMT) Received: from epsmges2p4.samsung.com (unknown [182.195.40.183]) by epsnrtp1.localdomain (Postfix) with ESMTP id 4GPpbM6dFqz4x9QJ; Wed, 14 Jul 2021 07:11:59 +0000 (GMT) Received: from epcas2p2.samsung.com ( [182.195.41.54]) by epsmges2p4.samsung.com (Symantec Messaging Gateway) with SMTP id B9.3D.09571.F3E8EE06; Wed, 14 Jul 2021 16:11:59 +0900 (KST) Received: from epsmtrp1.samsung.com (unknown [182.195.40.13]) by epcas2p4.samsung.com (KnoxPortal) with ESMTPA id 20210714071159epcas2p4c4eabf50abdaa46567fc5356bce8942b~RlsZsV7E52506525065epcas2p4l; Wed, 14 Jul 2021 07:11:59 +0000 (GMT) Received: from epsmgms1p2.samsung.com (unknown [182.195.42.42]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20210714071159epsmtrp1d193383e8c25893c979722203999b387~RlsZrR60q1252112521epsmtrp1I; Wed, 14 Jul 2021 07:11:59 +0000 (GMT) X-AuditID: b6c32a48-1f5ff70000002563-07-60ee8e3f6b97 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p2.samsung.com (Symantec Messaging Gateway) with SMTP id 75.17.08289.F3E8EE06; Wed, 14 Jul 2021 16:11:59 +0900 (KST) Received: from localhost.localdomain (unknown [10.229.9.51]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20210714071159epsmtip2f1cf003de2a8bcbd415ae7b8d68b04e4~RlsZdI1oB1845718457epsmtip2x; Wed, 14 Jul 2021 07:11:59 +0000 (GMT) From: Chanho Park To: Krzysztof Kozlowski , Alim Akhtar , "James E . J . Bottomley" , "Martin K . Petersen" Cc: Can Guo , Jaegeuk Kim , Kiwoong Kim , Avri Altman , Adrian Hunter , Christoph Hellwig , Bart Van Assche , jongmin jeong , Gyunghoon Kwon , linux-samsung-soc@vger.kernel.org, linux-scsi@vger.kernel.org, Chanho Park Subject: [PATCH v2 07/15] scsi: ufs: ufs-exynos: add setup_clocks callback Date: Wed, 14 Jul 2021 16:11:23 +0900 Message-Id: <20210714071131.101204-8-chanho61.park@samsung.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210714071131.101204-1-chanho61.park@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrIJsWRmVeSWpSXmKPExsWy7bCmma5937sEgx+dJhYnn6xhs3gwbxub xcufV9kspn34yWzxaf0yVovL+7UtenY6W5yesIjJ4sn6WcwWi25sY7JYec3C4vz5DewWN7cc ZbGYcX4fk0X39R1sFsuP/2NyEPC4fMXb43JfL5PH5hVaHov3vGTy2LSqk81jwqIDjB4fn95i 8ejbsorR4/MmOY/2A91MAVxROTYZqYkpqUUKqXnJ+SmZeem2St7B8c7xpmYGhrqGlhbmSgp5 ibmptkouPgG6bpk5QH8oKZQl5pQChQISi4uV9O1sivJLS1IVMvKLS2yVUgtScgoMDQv0ihNz i0vz0vWS83OtDA0MjEyBKhNyMh5+WMhcMEGgYtOx1awNjOd4uxg5OSQETCTur1rK3sXIxSEk sINRom3zFGYI5xOjxMIVHVCZz4wSB/pOscK0HGvZzgSR2MUoMXnTLRYI5yOjxJ2vN1hAqtgE dCW2PH/FCJIQARm8avFdsCpmgZPMEqcXHGQHqRIW8JK49Hw7G4jNIqAqcez5BLAdvAL2Evt/ 7IXaJy9xatlBJhCbU8BB4uCGD4wQNYISJ2c+AdvGDFTTvHU22OUSAhc4JG4+P8AM0ewiceL7 ZihbWOLV8S3sELaUxMv+NnaIhm5GidZH/6ESqxklOht9IGx7iV/TtwBdwQG0QVNi/S59EFNC QFniyC2ovXwSHYf/skOEeSU62oQgGtUlDmyfzgJhy0p0z/kM9YqHxLw1F1khoTWZUeLtivus ExgVZiF5ZxaSd2YhLF7AyLyKUSy1oDg3PbXYqMAEOZI3MYLTtpbHDsbZbz/oHWJk4mA8xCjB wawkwrvU6G2CEG9KYmVValF+fFFpTmrxIUZTYGBPZJYSTc4HZo68knhDUyMzMwNLUwtTMyML JXFeDvZDCUIC6YklqdmpqQWpRTB9TBycUg1M8clxHTzCDonxfJW9bqpL5ql+qPw2y/akPKtO tcH/l1Yre/VUzxypXfpjqod2r+6No5vuHLFsZ57XtphrRUzm3blXp4Qkdopviq5yu/isLm+i smEUu5UCm6bhlgtbDK/rOPb2MNeViVxRmFe94NZ2IX3eW3N3CWf2VP40ZoiftLitdvapxpC4 L1P/34gT/ZXvll8qzxO48eOTGRsKntX7Kp1T/K4rN6tXpahbcEPl9wkPKjdKbpa5/cU7w37y vPwlZcl5KyrchK6//WOeZhtRUPYlQfn4g935wW7reX47fp70c/Gdz+Fd++6cWLp4rveX8Dxl o1tmFfNYDm78EdFir7h96fOtvaa1wVeFp+5SYinOSDTUYi4qTgQAkxJovGQEAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupikeLIzCtJLcpLzFFi42LZdlhJXte+712CwZL5whYnn6xhs3gwbxub xcufV9kspn34yWzxaf0yVovL+7UtenY6W5yesIjJ4sn6WcwWi25sY7JYec3C4vz5DewWN7cc ZbGYcX4fk0X39R1sFsuP/2NyEPC4fMXb43JfL5PH5hVaHov3vGTy2LSqk81jwqIDjB4fn95i 8ejbsorR4/MmOY/2A91MAVxRXDYpqTmZZalF+nYJXBkPPyxkLpggULHp2GrWBsZzvF2MnBwS AiYSx1q2M3UxcnEICexglHi16AorREJW4tm7HewQtrDE/ZYjrBBF7xklPu5cxAySYBPQldjy /BUjSEJEYBejxOEzh9lBHGaBy8wS36ZdAasSFvCSuPR8OxuIzSKgKnHs+QSwFbwC9hL7f+yF WicvcWrZQSYQm1PAQeLghg+MILYQUM2/bavZIOoFJU7OfMICYjMD1Tdvnc08gVFgFpLULCSp BYxMqxglUwuKc9Nziw0LjPJSy/WKE3OLS/PS9ZLzczcxgqNLS2sH455VH/QOMTJxMB5ilOBg VhLhXWr0NkGINyWxsiq1KD++qDQntfgQozQHi5I474Wuk/FCAumJJanZqakFqUUwWSYOTqkG pgnW3vN3Jcfot+aIff+jurJNOV33wa/nJS+kJpbXbpY85h+ruMJ71iypcx339Q/r/7l075s3 y8pjhwp8tjBsX65iW73mqorfIYMjvi/EdrPlst1uYXjdNtfosU3NuvKPCcv3JyzTyLQM59W/ uHx7ofL0okQ7+f3nVSsTj6oXvLvXXHBq6U7uBydOnH7/4lQDS19C+/H+xW/mTrvV4bjgP6PH Vt65/JlqIdZbbS0mNEy+wDmB6Ykfy/Izt7srC7OaKnVfCsTHd2y7tfbi80f/T6+LvWfycF7n p+MS/5edlWC4/2SXJmceu+BO4U8f1zoVCG6sCH9yaMM9E7Hc/suBH8znRM+ZE6Af0LY/5kxc XKESS3FGoqEWc1FxIgCgC19JHQMAAA== X-CMS-MailID: 20210714071159epcas2p4c4eabf50abdaa46567fc5356bce8942b X-Msg-Generator: CA X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210714071159epcas2p4c4eabf50abdaa46567fc5356bce8942b References: <20210714071131.101204-1-chanho61.park@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org This patch adds setup_clocks callback to control/gate clocks by ufshcd. To avoid calling before initialization, it needs to check whether ufs is null or not and call it initially from pre_link callback. Signed-off-by: Chanho Park --- drivers/scsi/ufs/ufs-exynos.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c index 78cc5bda0a1f..530dab500d11 100644 --- a/drivers/scsi/ufs/ufs-exynos.c +++ b/drivers/scsi/ufs/ufs-exynos.c @@ -795,6 +795,27 @@ static void exynos_ufs_config_intr(struct exynos_ufs *ufs, u32 errs, u8 index) } } +static int exynos_ufs_setup_clocks(struct ufs_hba *hba, bool on, + enum ufs_notify_change_status status) +{ + struct exynos_ufs *ufs = ufshcd_get_variant(hba); + + if (!ufs) + return 0; + + if (on) { + if (ufs->opts & EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL) + exynos_ufs_disable_auto_ctrl_hcc(ufs); + exynos_ufs_ungate_clks(ufs); + } else { + exynos_ufs_gate_clks(ufs); + if (ufs->opts & EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL) + exynos_ufs_enable_auto_ctrl_hcc(ufs); + } + + return 0; +} + static int exynos_ufs_pre_link(struct ufs_hba *hba) { struct exynos_ufs *ufs = ufshcd_get_variant(hba); @@ -813,6 +834,8 @@ static int exynos_ufs_pre_link(struct ufs_hba *hba) exynos_ufs_config_phy_time_attr(ufs); exynos_ufs_config_phy_cap_attr(ufs); + exynos_ufs_setup_clocks(hba, true, POST_CHANGE); + if (ufs->drv_data->pre_link) ufs->drv_data->pre_link(ufs); @@ -1203,6 +1226,7 @@ static struct ufs_hba_variant_ops ufs_hba_exynos_ops = { .hce_enable_notify = exynos_ufs_hce_enable_notify, .link_startup_notify = exynos_ufs_link_startup_notify, .pwr_change_notify = exynos_ufs_pwr_change_notify, + .setup_clocks = exynos_ufs_setup_clocks, .setup_xfer_req = exynos_ufs_specify_nexus_t_xfer_req, .setup_task_mgmt = exynos_ufs_specify_nexus_t_tm_req, .hibern8_notify = exynos_ufs_hibern8_notify,