From patchwork Wed Jun 22 07:37:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 12890266 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1AB96C433EF for ; Wed, 22 Jun 2022 07:37:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353461AbiFVHhl (ORCPT ); Wed, 22 Jun 2022 03:37:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353238AbiFVHhg (ORCPT ); Wed, 22 Jun 2022 03:37:36 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2C0F377DC; Wed, 22 Jun 2022 00:37:28 -0700 (PDT) X-UUID: a0c07be0e83843498b1475e59c031ef6-20220622 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.6,REQID:d4bf5cc2-30ef-44c5-a898-c29d15e42452,OB:0,LO B:10,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Release_Ham,A CTION:release,TS:90 X-CID-INFO: VERSION:1.1.6,REQID:d4bf5cc2-30ef-44c5-a898-c29d15e42452,OB:0,LOB: 10,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Spam_GS981B3D,A CTION:quarantine,TS:90 X-CID-META: VersionHash:b14ad71,CLOUDID:c9272738-5e4b-44d7-80b2-bb618cb09d29,C OID:5488c44df5a1,Recheck:0,SF:28|17|19|48,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,QS:nil,BEC:nil,COL:0 X-UUID: a0c07be0e83843498b1475e59c031ef6-20220622 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1276742694; Wed, 22 Jun 2022 15:37:21 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Wed, 22 Jun 2022 15:37:20 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 22 Jun 2022 15:37:20 +0800 From: Stanley Chu To: , , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1 1/7] scsi: ufs-mediatek: Fix build warnings Date: Wed, 22 Jun 2022 15:37:13 +0800 Message-ID: <20220622073719.21599-2-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220622073719.21599-1-stanley.chu@mediatek.com> References: <20220622073719.21599-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Fix build warnings as below, 1. ../drivers/ufs/host/ufs-mediatek.c:1375:5: error: no previous prototype for function 'ufs_mtk_system_suspend' [-Werror,-Wmissing-prototypes] int ufs_mtk_system_suspend(struct device *dev) ^ ../drivers/ufs/host/ufs-mediatek.c:1375:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ufs_mtk_system_suspend(struct device *dev) ^ static 2. ../drivers/ufs/host/ufs-mediatek.c:702:50: error: format specifies type 'unsigned long' but the argument has type 'int' [-Werror,-Wformat] snprintf(vcc_name, MAX_VCC_NAME, "vcc-ufs%lu", ver); ~~~ ^~~ %d Signed-off-by: Stanley Chu --- drivers/ufs/host/ufs-mediatek.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 3ee27f2bcdfc..d970c6607b4a 100755 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -690,7 +690,7 @@ static int ufs_mtk_vreg_fix_vcc(struct ufs_hba *hba) return -ENODEV; } else if (of_property_read_bool(np, "mediatek,ufs-vcc-by-ver")) { ver = (hba->dev_info.wspecversion & 0xF00) >> 8; - snprintf(vcc_name, MAX_VCC_NAME, "vcc-ufs%lu", ver); + snprintf(vcc_name, MAX_VCC_NAME, "vcc-ufs%d", ver); } else { return 0; } @@ -1364,7 +1364,7 @@ static int ufs_mtk_remove(struct platform_device *pdev) } #ifdef CONFIG_PM_SLEEP -int ufs_mtk_system_suspend(struct device *dev) +static int ufs_mtk_system_suspend(struct device *dev) { struct ufs_hba *hba = dev_get_drvdata(dev); int ret; @@ -1378,7 +1378,7 @@ int ufs_mtk_system_suspend(struct device *dev) return 0; } -int ufs_mtk_system_resume(struct device *dev) +static int ufs_mtk_system_resume(struct device *dev) { struct ufs_hba *hba = dev_get_drvdata(dev); @@ -1388,7 +1388,7 @@ int ufs_mtk_system_resume(struct device *dev) } #endif -int ufs_mtk_runtime_suspend(struct device *dev) +static int ufs_mtk_runtime_suspend(struct device *dev) { struct ufs_hba *hba = dev_get_drvdata(dev); int ret = 0; @@ -1402,7 +1402,7 @@ int ufs_mtk_runtime_suspend(struct device *dev) return 0; } -int ufs_mtk_runtime_resume(struct device *dev) +static int ufs_mtk_runtime_resume(struct device *dev) { struct ufs_hba *hba = dev_get_drvdata(dev); From patchwork Wed Jun 22 07:37:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 12890261 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75F92C433EF for ; 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Wed, 22 Jun 2022 15:37:22 +0800 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Wed, 22 Jun 2022 15:37:21 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 22 Jun 2022 15:37:21 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 22 Jun 2022 15:37:20 +0800 From: Stanley Chu To: , , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1 2/7] scsi: ufs-mediatek: Always add delays for VCC operations Date: Wed, 22 Jun 2022 15:37:14 +0800 Message-ID: <20220622073719.21599-3-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220622073719.21599-1-stanley.chu@mediatek.com> References: <20220622073719.21599-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Peter Wang MediaTek decides to always add delays before and after VCC is turned-off. Reviewed-by: Stanley Chu Signed-off-by: Peter Wang Signed-off-by: Stanley Chu --- drivers/ufs/host/ufs-mediatek.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index d970c6607b4a..f76e2999ac99 100755 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -31,9 +31,10 @@ #include "ufs-mediatek-trace.h" static const struct ufs_dev_quirk ufs_mtk_dev_fixups[] = { - { .wmanufacturerid = UFS_VENDOR_MICRON, + { .wmanufacturerid = UFS_ANY_VENDOR, .model = UFS_ANY_MODEL, - .quirk = UFS_DEVICE_QUIRK_DELAY_AFTER_LPM }, + .quirk = UFS_DEVICE_QUIRK_DELAY_AFTER_LPM | + UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM }, { .wmanufacturerid = UFS_VENDOR_SKHYNIX, .model = "H9HQ21AFAMZDAR", .quirk = UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES }, From patchwork Wed Jun 22 07:37:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 12890264 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5C80BC433EF for ; Wed, 22 Jun 2022 07:37:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353242AbiFVHhi (ORCPT ); Wed, 22 Jun 2022 03:37:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353217AbiFVHhc (ORCPT ); Wed, 22 Jun 2022 03:37:32 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF0CC377D6; Wed, 22 Jun 2022 00:37:27 -0700 (PDT) X-UUID: 9407edab5f7f45a78c1a8106f7f15b26-20220622 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.6,REQID:763b9070-c475-4aae-bd6c-266f762701cf,OB:0,LO B:0,IP:0,URL:5,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACT ION:release,TS:0 X-CID-META: VersionHash:b14ad71,CLOUDID:c8272738-5e4b-44d7-80b2-bb618cb09d29,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:1,File:nil ,QS:nil,BEC:nil,COL:0 X-UUID: 9407edab5f7f45a78c1a8106f7f15b26-20220622 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 859568840; Wed, 22 Jun 2022 15:37:22 +0800 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Wed, 22 Jun 2022 15:37:21 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 22 Jun 2022 15:37:21 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 22 Jun 2022 15:37:21 +0800 From: Stanley Chu To: , , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1 3/7] scsi: ufs-mediatek: Prevent host hang by setting CLK_CG early Date: Wed, 22 Jun 2022 15:37:15 +0800 Message-ID: <20220622073719.21599-4-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220622073719.21599-1-stanley.chu@mediatek.com> References: <20220622073719.21599-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Peter Wang Some UFSHCI hosts in MediaTek UFS platform need workaround to prevent host hang issue by setting CLK_CG bit before host is enabled. This operation shall have no side effect on those platforms which do not support this bit. Reviewed-by: Stanley Chu Signed-off-by: Peter Wang Signed-off-by: Stanley Chu --- drivers/ufs/host/ufs-mediatek.c | 8 ++++++++ drivers/ufs/host/ufs-mediatek.h | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index f76e2999ac99..d6b2734e7f81 100755 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -183,6 +183,14 @@ static int ufs_mtk_hce_enable_notify(struct ufs_hba *hba, hba->capabilities &= ~MASK_AUTO_HIBERN8_SUPPORT; hba->ahit = 0; } + + /* + * Turn on CLK_CG early to bypass abnormal ERR_CHK signal + * to prevent host hang issue + */ + ufshcd_writel(hba, + ufshcd_readl(hba, REG_UFS_XOUFS_CTRL) | 0x80, + REG_UFS_XOUFS_CTRL); } return 0; diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h index 49a2137fb251..f5c1c643dd52 100755 --- a/drivers/ufs/host/ufs-mediatek.h +++ b/drivers/ufs/host/ufs-mediatek.h @@ -12,6 +12,7 @@ /* * Vendor specific UFSHCI Registers */ +#define REG_UFS_XOUFS_CTRL 0x140 #define REG_UFS_REFCLK_CTRL 0x144 #define REG_UFS_EXTREG 0x2100 #define REG_UFS_MPHYCTRL 0x2200 From patchwork Wed Jun 22 07:37:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 12890265 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFEDBCCA47A for ; Wed, 22 Jun 2022 07:37:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353433AbiFVHhj (ORCPT ); Wed, 22 Jun 2022 03:37:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39720 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353239AbiFVHhg (ORCPT ); Wed, 22 Jun 2022 03:37:36 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C91D377D7; Wed, 22 Jun 2022 00:37:28 -0700 (PDT) X-UUID: 33390577362f44b1918c08e13730463c-20220622 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.6,REQID:c476df90-9efa-4320-a5fa-d976b431f0bb,OB:30,L OB:30,IP:0,URL:5,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Release_Ham, ACTION:release,TS:95 X-CID-INFO: VERSION:1.1.6,REQID:c476df90-9efa-4320-a5fa-d976b431f0bb,OB:30,LOB :30,IP:0,URL:5,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Spam_GS981B3D, ACTION:quarantine,TS:95 X-CID-META: VersionHash:b14ad71,CLOUDID:86a1ba2d-1756-4fa3-be7f-474a6e4be921,C OID:d1d2169eb362,Recheck:0,SF:28|17|19|48,TC:nil,Content:0,EDM:-3,IP:nil,U RL:1,File:nil,QS:nil,BEC:nil,COL:0 X-UUID: 33390577362f44b1918c08e13730463c-20220622 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1132763863; Wed, 22 Jun 2022 15:37:22 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Wed, 22 Jun 2022 15:37:21 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 22 Jun 2022 15:37:21 +0800 From: Stanley Chu To: , , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1 4/7] scsi: ufs-mediatek: Add stage information for ref-clk control Date: Wed, 22 Jun 2022 15:37:16 +0800 Message-ID: <20220622073719.21599-5-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220622073719.21599-1-stanley.chu@mediatek.com> References: <20220622073719.21599-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Peter Wang Add "PRE_CHANGE" and "POST_CHANGE" information for ref-clk control to precisely configure the low-power state of the parent of ref-clk. Reviewed-by: Stanley Chu Signed-off-by: Peter Wang Signed-off-by: Stanley Chu --- drivers/ufs/host/ufs-mediatek.c | 9 +++++---- drivers/ufs/host/ufs-mediatek.h | 4 ++-- 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index d6b2734e7f81..8184e871ff8e 100755 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -244,8 +244,9 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on) if (host->ref_clk_enabled == on) return 0; + ufs_mtk_ref_clk_notify(on, PRE_CHANGE, res); + if (on) { - ufs_mtk_ref_clk_notify(on, res); ufshcd_writel(hba, REFCLK_REQUEST, REG_UFS_REFCLK_CTRL); } else { ufshcd_delay_us(host->ref_clk_gating_wait_us, 10); @@ -267,7 +268,7 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on) dev_err(hba->dev, "missing ack of refclk req, reg: 0x%x\n", value); - ufs_mtk_ref_clk_notify(host->ref_clk_enabled, res); + ufs_mtk_ref_clk_notify(host->ref_clk_enabled, POST_CHANGE, res); return -ETIMEDOUT; @@ -275,8 +276,8 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on) host->ref_clk_enabled = on; if (on) ufshcd_delay_us(host->ref_clk_ungating_wait_us, 10); - else - ufs_mtk_ref_clk_notify(on, res); + + ufs_mtk_ref_clk_notify(on, POST_CHANGE, res); return 0; } diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h index f5c1c643dd52..c12ceb4d941f 100755 --- a/drivers/ufs/host/ufs-mediatek.h +++ b/drivers/ufs/host/ufs-mediatek.h @@ -189,8 +189,8 @@ static void _ufs_mtk_smc(struct ufs_mtk_smc_arg s) #define ufs_mtk_crypto_ctrl(res, enable) \ ufs_mtk_smc(UFS_MTK_SIP_CRYPTO_CTRL, &(res), enable) -#define ufs_mtk_ref_clk_notify(on, res) \ - ufs_mtk_smc(UFS_MTK_SIP_REF_CLK_NOTIFICATION, &(res), on) +#define ufs_mtk_ref_clk_notify(on, stage, res) \ + ufs_mtk_smc(UFS_MTK_SIP_REF_CLK_NOTIFICATION, &(res), on, stage) #define ufs_mtk_device_reset_ctrl(high, res) \ ufs_mtk_smc(UFS_MTK_SIP_DEVICE_RESET, &(res), high) From patchwork Wed Jun 22 07:37:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 12890263 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5C3C3C43334 for ; Wed, 22 Jun 2022 07:37:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353396AbiFVHhh (ORCPT ); Wed, 22 Jun 2022 03:37:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39650 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353166AbiFVHhc (ORCPT ); Wed, 22 Jun 2022 03:37:32 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5252F377D3; Wed, 22 Jun 2022 00:37:27 -0700 (PDT) X-UUID: a744a705032a49c7ad80031a6e2a6683-20220622 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.6,REQID:b1a38cf2-e852-4794-95e1-074d5679e8cd,OB:0,LO B:0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,RULE:Release_Ham,ACT ION:release,TS:95 X-CID-INFO: VERSION:1.1.6,REQID:b1a38cf2-e852-4794-95e1-074d5679e8cd,OB:0,LOB: 0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,RULE:Spam_GS981B3D,ACT ION:quarantine,TS:95 X-CID-META: VersionHash:b14ad71,CLOUDID:dc272738-5e4b-44d7-80b2-bb618cb09d29,C OID:d1d2169eb362,Recheck:0,SF:28|17|19|48,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,QS:nil,BEC:nil,COL:0 X-UUID: a744a705032a49c7ad80031a6e2a6683-20220622 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 82527024; Wed, 22 Jun 2022 15:37:22 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Wed, 22 Jun 2022 15:37:21 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 22 Jun 2022 15:37:21 +0800 From: Stanley Chu To: , , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1 5/7] scsi: ufs-mediatek: Disable reset confirm feature by UniPro Date: Wed, 22 Jun 2022 15:37:17 +0800 Message-ID: <20220622073719.21599-6-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220622073719.21599-1-stanley.chu@mediatek.com> References: <20220622073719.21599-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Po-Wen Kao In MediaTek UFS platforms, UniPro will not return reset confirm if it is in POWERDOWN state thus hang issue may happen while disabling UFSHCI. Simply disable this feature before UniPro leaves POWERDOWN state. Reviewed-by: Stanley Chu Signed-off-by: Po-Wen Kao Signed-off-by: Stanley Chu --- drivers/ufs/host/ufs-mediatek.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 8184e871ff8e..348966dbad78 100755 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1079,6 +1079,11 @@ static int ufs_mtk_link_set_lpm(struct ufs_hba *hba) { int err; + /* Disable reset confirm feature by UniPro */ + ufshcd_writel(hba, + (ufshcd_readl(hba, REG_UFS_XOUFS_CTRL) & ~0x100), + REG_UFS_XOUFS_CTRL); + err = ufs_mtk_unipro_set_lpm(hba, true); if (err) { /* Resume UniPro state for following error recovery */ From patchwork Wed Jun 22 07:37:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 12890267 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 764FFC433EF for ; Wed, 22 Jun 2022 07:37:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353547AbiFVHhp (ORCPT ); Wed, 22 Jun 2022 03:37:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353245AbiFVHhg (ORCPT ); Wed, 22 Jun 2022 03:37:36 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5DD00377DD; Wed, 22 Jun 2022 00:37:29 -0700 (PDT) X-UUID: 7a4c61dc1b0142c68d7f0f82bf2e7088-20220622 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.6,REQID:6bacb469-5688-43bf-a93c-02461ca8184d,OB:10,L OB:10,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Release_Ham, ACTION:release,TS:90 X-CID-INFO: VERSION:1.1.6,REQID:6bacb469-5688-43bf-a93c-02461ca8184d,OB:10,LOB :10,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Spam_GS981B3D, ACTION:quarantine,TS:90 X-CID-META: VersionHash:b14ad71,CLOUDID:85a1ba2d-1756-4fa3-be7f-474a6e4be921,C OID:d1d2169eb362,Recheck:0,SF:28|17|19|48,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,QS:nil,BEC:nil,COL:0 X-UUID: 7a4c61dc1b0142c68d7f0f82bf2e7088-20220622 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 74774015; Wed, 22 Jun 2022 15:37:22 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Wed, 22 Jun 2022 15:37:21 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 22 Jun 2022 15:37:21 +0800 From: Stanley Chu To: , , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1 6/7] scsi: ufs-mediatek: Support host power control Date: Wed, 22 Jun 2022 15:37:18 +0800 Message-ID: <20220622073719.21599-7-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220622073719.21599-1-stanley.chu@mediatek.com> References: <20220622073719.21599-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Po-Wen Kao Add interfaces for controlling the host power to optimize the power consumption in MediaTek UFS platforms. Reviewed-by: Stanley Chu Signed-off-by: Po-Wen Kao Signed-off-by: Stanley Chu --- drivers/ufs/host/ufs-mediatek.c | 5 +++++ drivers/ufs/host/ufs-mediatek.h | 12 ++++++++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 348966dbad78..085ba05ff4d4 100755 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1190,6 +1190,8 @@ static int ufs_mtk_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op, if (ufshcd_is_link_off(hba)) ufs_mtk_device_reset_ctrl(0, res); + ufs_mtk_host_pwr_ctrl(HOST_PWR_HCI, false, res); + return 0; fail: /* @@ -1204,10 +1206,13 @@ static int ufs_mtk_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op, static int ufs_mtk_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) { int err; + struct arm_smccc_res res; if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL) ufs_mtk_dev_vreg_set_lpm(hba, false); + ufs_mtk_host_pwr_ctrl(HOST_PWR_HCI, true, res); + err = ufs_mtk_mphy_power_on(hba, true); if (err) goto fail; diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h index c12ceb4d941f..cdf40851e626 100755 --- a/drivers/ufs/host/ufs-mediatek.h +++ b/drivers/ufs/host/ufs-mediatek.h @@ -84,6 +84,7 @@ enum { #define UFS_MTK_SIP_DEVICE_RESET BIT(1) #define UFS_MTK_SIP_CRYPTO_CTRL BIT(2) #define UFS_MTK_SIP_REF_CLK_NOTIFICATION BIT(3) +#define UFS_MTK_SIP_HOST_PWR_CTRL BIT(5) #define UFS_MTK_SIP_GET_VCC_NUM BIT(6) #define UFS_MTK_SIP_DEVICE_PWR_CTRL BIT(7) @@ -156,6 +157,14 @@ enum ufs_mtk_vcc_num { UFS_VCC_MAX }; +/* + * Host Power Control options + */ +enum { + HOST_PWR_HCI = 0, + HOST_PWR_MPHY +}; + /* * SMC call wrapper function */ @@ -195,6 +204,9 @@ static void _ufs_mtk_smc(struct ufs_mtk_smc_arg s) #define ufs_mtk_device_reset_ctrl(high, res) \ ufs_mtk_smc(UFS_MTK_SIP_DEVICE_RESET, &(res), high) +#define ufs_mtk_host_pwr_ctrl(opt, on, res) \ + ufs_mtk_smc(UFS_MTK_SIP_HOST_PWR_CTRL, &(res), opt, on) + #define ufs_mtk_get_vcc_num(res) \ ufs_mtk_smc(UFS_MTK_SIP_GET_VCC_NUM, &(res)) From patchwork Wed Jun 22 07:37:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 12890268 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A434C43334 for ; Wed, 22 Jun 2022 07:37:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352299AbiFVHhv (ORCPT ); Wed, 22 Jun 2022 03:37:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353254AbiFVHhg (ORCPT ); Wed, 22 Jun 2022 03:37:36 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 665D2377E1; Wed, 22 Jun 2022 00:37:30 -0700 (PDT) X-UUID: 3b5b2ba541d44b11afd5e67be939f36e-20220622 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.6,REQID:7d4e7a49-7aa9-4232-ab96-2ea5cc4331bc,OB:20,L OB:20,IP:0,URL:5,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Release_Ham, ACTION:release,TS:95 X-CID-INFO: VERSION:1.1.6,REQID:7d4e7a49-7aa9-4232-ab96-2ea5cc4331bc,OB:20,LOB :20,IP:0,URL:5,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,RULE:Spam_GS981B3D, ACTION:quarantine,TS:95 X-CID-META: VersionHash:b14ad71,CLOUDID:df1b32ea-f7af-4e69-92ee-0fd74a0c286c,C OID:d1d2169eb362,Recheck:0,SF:28|17|19|48,TC:nil,Content:0,EDM:-3,IP:nil,U RL:1,File:nil,QS:nil,BEC:nil,COL:0 X-UUID: 3b5b2ba541d44b11afd5e67be939f36e-20220622 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1612904803; Wed, 22 Jun 2022 15:37:22 +0800 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Wed, 22 Jun 2022 15:37:22 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 22 Jun 2022 15:37:22 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 22 Jun 2022 15:37:21 +0800 From: Stanley Chu To: , , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1 7/7] scsi: ufs-mediatek: Support performance boosting Date: Wed, 22 Jun 2022 15:37:19 +0800 Message-ID: <20220622073719.21599-8-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220622073719.21599-1-stanley.chu@mediatek.com> References: <20220622073719.21599-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Peter Wang Add pm-qos request to support performance boosting in MediaTek UFS platforms. In the same time, adjust the order of function calls to be symmetric during the low-power control flow. Reviewed-by: Stanley Chu Signed-off-by: Peter Wang Signed-off-by: Stanley Chu --- drivers/ufs/host/ufs-mediatek.c | 34 +++++++++++++++++++++++++-------- drivers/ufs/host/ufs-mediatek.h | 3 +++ 2 files changed, 29 insertions(+), 8 deletions(-) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 085ba05ff4d4..125d64e097f2 100755 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -586,17 +587,32 @@ static void ufs_mtk_init_host_caps(struct ufs_hba *hba) dev_info(hba->dev, "caps: 0x%x", host->caps); } -static void ufs_mtk_scale_perf(struct ufs_hba *hba, bool up) +static void ufs_mtk_boost_pm_qos(struct ufs_hba *hba, bool boost) { struct ufs_mtk_host *host = ufshcd_get_variant(hba); - ufs_mtk_boost_crypt(hba, up); - ufs_mtk_setup_ref_clk(hba, up); + if (!host || !host->pm_qos_init) + return; + + cpu_latency_qos_update_request(&host->pm_qos_req, + boost ? 0 : PM_QOS_DEFAULT_VALUE); +} + +static void ufs_mtk_pwr_ctrl(struct ufs_hba *hba, bool on) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); - if (up) + if (on) { phy_power_on(host->mphy); - else + ufs_mtk_setup_ref_clk(hba, on); + ufs_mtk_boost_crypt(hba, on); + ufs_mtk_boost_pm_qos(hba, on); + } else { + ufs_mtk_boost_pm_qos(hba, on); + ufs_mtk_boost_crypt(hba, on); + ufs_mtk_setup_ref_clk(hba, on); phy_power_off(host->mphy); + } } /** @@ -641,9 +657,9 @@ static int ufs_mtk_setup_clocks(struct ufs_hba *hba, bool on, } if (clk_pwr_off) - ufs_mtk_scale_perf(hba, false); + ufs_mtk_pwr_ctrl(hba, false); } else if (on && status == POST_CHANGE) { - ufs_mtk_scale_perf(hba, true); + ufs_mtk_pwr_ctrl(hba, true); } return ret; @@ -1248,8 +1264,10 @@ static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba) struct ufs_dev_info *dev_info = &hba->dev_info; u16 mid = dev_info->wmanufacturerid; - if (mid == UFS_VENDOR_SAMSUNG) + if (mid == UFS_VENDOR_SAMSUNG) { ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 6); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_HIBERN8TIME), 10); + } /* * Decide waiting time before gating reference clock and diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h index cdf40851e626..aa26d415527b 100755 --- a/drivers/ufs/host/ufs-mediatek.h +++ b/drivers/ufs/host/ufs-mediatek.h @@ -7,6 +7,7 @@ #define _UFS_MEDIATEK_H #include +#include #include /* @@ -131,6 +132,7 @@ struct ufs_mtk_hw_ver { struct ufs_mtk_host { struct phy *mphy; + struct pm_qos_request pm_qos_req; struct regulator *reg_va09; struct reset_control *hci_reset; struct reset_control *unipro_reset; @@ -140,6 +142,7 @@ struct ufs_mtk_host { struct ufs_mtk_hw_ver hw_ver; enum ufs_mtk_host_caps caps; bool mphy_powered_on; + bool pm_qos_init; bool unipro_lpm; bool ref_clk_enabled; u16 ref_clk_ungating_wait_us;