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))