From patchwork Wed Aug 23 15:44:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nitin Rawat X-Patchwork-Id: 13362793 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 164ABEE49A0 for ; Wed, 23 Aug 2023 15:44:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234756AbjHWPo2 (ORCPT ); Wed, 23 Aug 2023 11:44:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230245AbjHWPo1 (ORCPT ); Wed, 23 Aug 2023 11:44:27 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17019E52; Wed, 23 Aug 2023 08:44:26 -0700 (PDT) Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37NEOjcT016771; Wed, 23 Aug 2023 15:44:20 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=qcppdkim1; bh=75OGKGZobLN86QE8S1Fo0Ia1BOGzr7bQSpO253BHSPs=; b=BTb924NduGGtIFoIPW28HWgs42y57fzPl5cS0brPAZdYc38PrRZvAWw0WTTBwxk7e6ST h/xzxAoHGDN0Vua+Kg5qsLUJaNEgRzp1Sdr4DeqWr5xPTWBDmRif2rXBU/QheUs1SHy4 0PS4o0TLWSe/OhPO8FEbPm0MjZciVYmkmPqOiFt6JrTJM9cmu2cyAKo206wOJz6glFnM Jmf/ndD+K3KAUB/enj2NKbrOjq+/jC1KGEI3gX98SSjNgYM+DIYHP6mtFs34a1ubFypJ xZ4wGExdOm+UGcKNsxmxtgvaAxJXRqXjk8hxfWeM+owr8BOeSWJwe7TnRgcjtmXys2jk Ew== Received: from apblrppmta01.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3snkumr7q7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 23 Aug 2023 15:44:19 +0000 Received: from pps.filterd (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 37NFiGgV029192; Wed, 23 Aug 2023 15:44:16 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 3sjptm3qdj-1; Wed, 23 Aug 2023 15:44:16 +0000 Received: from APBLRPPMTA01.qualcomm.com (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 37NFiG3I029185; Wed, 23 Aug 2023 15:44:16 GMT Received: from hu-maiyas-hyd.qualcomm.com (hu-nitirawa-hyd.qualcomm.com [10.213.109.152]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 37NFiGRJ029179; Wed, 23 Aug 2023 15:44:16 +0000 Received: by hu-maiyas-hyd.qualcomm.com (Postfix, from userid 2342877) id C2AA95000AB; Wed, 23 Aug 2023 21:14:15 +0530 (+0530) From: Nitin Rawat To: mani@kernel.org, agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, jejb@linux.ibm.com, martin.petersen@oracle.com Cc: quic_cang@quicinc.com, quic_nguyenb@quicinc.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Nitin Rawat , Naveen Kumar Goud Arepalli Subject: [PATCH V5 1/6] scsi: ufs: qcom: Update offset for core_clk_1us_cycles Date: Wed, 23 Aug 2023 21:14:08 +0530 Message-Id: <20230823154413.23788-2-quic_nitirawa@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230823154413.23788-1-quic_nitirawa@quicinc.com> References: <20230823154413.23788-1-quic_nitirawa@quicinc.com> X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: _bstBj6IkelJ-bSKnmj5RG9IYaWosgvD X-Proofpoint-ORIG-GUID: _bstBj6IkelJ-bSKnmj5RG9IYaWosgvD X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-08-23_09,2023-08-22_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxlogscore=978 spamscore=0 suspectscore=0 adultscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 lowpriorityscore=0 phishscore=0 mlxscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2308230142 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org This Patch updates offset for core_clk_1us_cycles in DME_VS_CORE_CLK_CTRL register. Offset for core_clk_1us_cycles is changed from Qualcomm UFS Controller V4.0.0 onwards. Co-developed-by: Naveen Kumar Goud Arepalli Signed-off-by: Naveen Kumar Goud Arepalli Signed-off-by: Nitin Rawat --- drivers/ufs/host/ufs-qcom.c | 19 ++++++++++++++----- drivers/ufs/host/ufs-qcom.h | 2 ++ 2 files changed, 16 insertions(+), 5 deletions(-) -- 2.17.1 diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index f88febb23123..1108b0cd43b3 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1297,12 +1297,21 @@ static void ufs_qcom_exit(struct ufs_hba *hba) } static int ufs_qcom_set_dme_vs_core_clk_ctrl_clear_div(struct ufs_hba *hba, - u32 clk_cycles) + u32 clk_1us_cycles) { - int err; + struct ufs_qcom_host *host = ufshcd_get_variant(hba); + u32 mask = DME_VS_CORE_CLK_CTRL_MAX_CORE_CLK_1US_CYCLES_MASK; u32 core_clk_ctrl_reg; + u32 offset = 0; + int err; + + /* Bit mask and offset changed on UFS host controller V4.0.0 onwards */ + if (host->hw_ver.major >= 4) { + mask = MAX_CORE_CLK_1US_CYCLES_MASK_V4; + offset = MAX_CORE_CLK_1US_CYCLES_OFFSET_V4; + } - if (clk_cycles > DME_VS_CORE_CLK_CTRL_MAX_CORE_CLK_1US_CYCLES_MASK) + if (clk_1us_cycles > mask) return -EINVAL; err = ufshcd_dme_get(hba, @@ -1311,8 +1320,8 @@ static int ufs_qcom_set_dme_vs_core_clk_ctrl_clear_div(struct ufs_hba *hba, if (err) return err; - core_clk_ctrl_reg &= ~DME_VS_CORE_CLK_CTRL_MAX_CORE_CLK_1US_CYCLES_MASK; - core_clk_ctrl_reg |= clk_cycles; + core_clk_ctrl_reg &= ~(mask << offset); + core_clk_ctrl_reg |= clk_1us_cycles << offset; /* Clear CORE_CLK_DIV_EN */ core_clk_ctrl_reg &= ~DME_VS_CORE_CLK_CTRL_CORE_CLK_DIV_EN_BIT; diff --git a/drivers/ufs/host/ufs-qcom.h b/drivers/ufs/host/ufs-qcom.h index d6f8e74bd538..a829296e11bb 100644 --- a/drivers/ufs/host/ufs-qcom.h +++ b/drivers/ufs/host/ufs-qcom.h @@ -129,6 +129,8 @@ enum { #define PA_VS_CONFIG_REG1 0x9000 #define DME_VS_CORE_CLK_CTRL 0xD002 /* bit and mask definitions for DME_VS_CORE_CLK_CTRL attribute */ +#define MAX_CORE_CLK_1US_CYCLES_MASK_V4 0xFFF +#define MAX_CORE_CLK_1US_CYCLES_OFFSET_V4 0x10 #define DME_VS_CORE_CLK_CTRL_CORE_CLK_DIV_EN_BIT BIT(8) #define DME_VS_CORE_CLK_CTRL_MAX_CORE_CLK_1US_CYCLES_MASK 0xFF