From patchwork Fri Jan 12 13:53:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viken Dadhaniya X-Patchwork-Id: 13518500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C72B86D1B4; Fri, 12 Jan 2024 13:54:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="AievCUHb" Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40CDIW99009300; Fri, 12 Jan 2024 13:53:46 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id; s=qcppdkim1; bh=DhVXr6gyIbMg zR2b0surHFdqtEQz2xq2bAyxCY1BWNg=; b=AievCUHbdq/ugHWm/OsV+lLygUYw K4NGsL8+BJKPUcnaL5SLCddxxnLGtTrMlu/YrkUMYAEX3mKJ6rMsXWz8ZVlcvz1+ RBDQwQjJHe8is7YTZnhNKGI+S7wOmHMyknU/EpYpZl2mcKI10rrNyU4Hf7WBbhch 1wmMuY95zzYuRv9R9lzZzgcpCo3LlP9Cj/oIwKLQQr780eBCGW5MvAsCX4JRWrEA J7LObRPepcjDFQVOLNC57IDNKcy+qdEboAgBom+AEedwPK8shDK9XUCrT+FAobpM obsUYXxRqVwwkVmwKo53WKfamBm698dM9jDzQXwJXgJM4wUIjpdJfpA1MA== Received: from apblrppmta02.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vjrqj1ysn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 12 Jan 2024 13:53:46 +0000 (GMT) Received: from pps.filterd (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 40CDrhs3005326; Fri, 12 Jan 2024 13:53:43 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTPS id 3veyxm4mxw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 12 Jan 2024 13:53:43 +0000 Received: from APBLRPPMTA02.qualcomm.com (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 40CDrgeK005319; Fri, 12 Jan 2024 13:53:42 GMT Received: from hu-maiyas-hyd.qualcomm.com (hu-vdadhani-hyd.qualcomm.com [10.213.106.28]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 40CDrg91005316; Fri, 12 Jan 2024 13:53:42 +0000 Received: by hu-maiyas-hyd.qualcomm.com (Postfix, from userid 4047106) id 29C915013A9; Fri, 12 Jan 2024 19:23:41 +0530 (+0530) From: Viken Dadhaniya To: andersson@kernel.org, konrad.dybcio@linaro.org, andi.shyti@kernel.org, linux-arm-msm@vger.kernel.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, vkoul@kernel.org Cc: quic_msavaliy@quicinc.com, quic_vtanuku@quicinc.com, Viken Dadhaniya Subject: [PATCH 1/1] i2c: i2c-qcom-geni: Correct I2C TRE sequence Date: Fri, 12 Jan 2024 19:23:32 +0530 Message-Id: <20240112135332.24957-1-quic_vdadhani@quicinc.com> X-Mailer: git-send-email 2.17.1 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-ORIG-GUID: OoHBo6GdfJgBuPdX_brWoMYa6rkH5ixG X-Proofpoint-GUID: OoHBo6GdfJgBuPdX_brWoMYa6rkH5ixG X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 impostorscore=0 malwarescore=0 mlxlogscore=720 mlxscore=0 clxscore=1011 adultscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401120109 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: For i2c read operation, we are getting gsi mode timeout due to malformed TRE(Transfer Ring Element). currently for read opreration, we are configuring incorrect TRE sequence(config->dma->go). So correct TRE sequence(config->go->dma) to resolve timeout issue for read operation. Signed-off-by: Viken Dadhaniya --- drivers/i2c/busses/i2c-qcom-geni.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index 0d2e7171e3a6..5904fc8bba71 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -613,6 +613,11 @@ static int geni_i2c_gpi_xfer(struct geni_i2c_dev *gi2c, struct i2c_msg msgs[], i peripheral.addr = msgs[i].addr; + ret = geni_i2c_gpi(gi2c, &msgs[i], &config, + &tx_addr, &tx_buf, I2C_WRITE, gi2c->tx_c); + if (ret) + goto err; + if (msgs[i].flags & I2C_M_RD) { ret = geni_i2c_gpi(gi2c, &msgs[i], &config, &rx_addr, &rx_buf, I2C_READ, gi2c->rx_c); @@ -620,11 +625,6 @@ static int geni_i2c_gpi_xfer(struct geni_i2c_dev *gi2c, struct i2c_msg msgs[], i goto err; } - ret = geni_i2c_gpi(gi2c, &msgs[i], &config, - &tx_addr, &tx_buf, I2C_WRITE, gi2c->tx_c); - if (ret) - goto err; - if (msgs[i].flags & I2C_M_RD) dma_async_issue_pending(gi2c->rx_c); dma_async_issue_pending(gi2c->tx_c);