Message ID | 20240229114439.21246-1-akhilrajeev@nvidia.com |
---|---|
State | Superseded |
Headers | show
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Thu, 29 Feb 2024 03:44:51 -0800 Received: from rnnvmail201.nvidia.com (10.129.68.8) by rnnvmail205.nvidia.com (10.129.68.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.12; Thu, 29 Feb 2024 03:44:50 -0800 Received: from BUILDSERVER-IO-L4T.nvidia.com (10.127.8.14) by mail.nvidia.com (10.129.68.8) with Microsoft SMTP Server id 15.2.1258.12 via Frontend Transport; Thu, 29 Feb 2024 03:44:48 -0800 From: Akhil R <akhilrajeev@nvidia.com> To: <ldewangan@nvidia.com>, <jonathanh@nvidia.com>, <vkoul@kernel.org>, <thierry.reding@gmail.com>, <digetx@gmail.com>, <dmaengine@vger.kernel.org>, <linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org> CC: Akhil R <akhilrajeev@nvidia.com> Subject: [PATCH v2] dmaengine: tegra186: Fix residual calculation Date: Thu, 29 Feb 2024 17:14:39 +0530 Message-ID: <20240229114439.21246-1-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.43.2 Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: <linux-tegra.vger.kernel.org> List-Subscribe: <mailto:linux-tegra+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-tegra+unsubscribe@vger.kernel.org> MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF000001CD:EE_|PH0PR12MB7471:EE_ X-MS-Office365-Filtering-Correlation-Id: 5634d516-7a61-4bfc-418e-08dc391be024 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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[v2] dmaengine: tegra186: Fix residual calculation
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diff --git a/drivers/dma/tegra186-gpc-dma.c b/drivers/dma/tegra186-gpc-dma.c index 88547a23825b..3642508e88bb 100644 --- a/drivers/dma/tegra186-gpc-dma.c +++ b/drivers/dma/tegra186-gpc-dma.c @@ -746,6 +746,9 @@ static int tegra_dma_get_residual(struct tegra_dma_channel *tdc) bytes_xfer = dma_desc->bytes_xfer + sg_req[dma_desc->sg_idx].len - (wcount * 4); + if (dma_desc->bytes_req == bytes_xfer) + return 0; + residual = dma_desc->bytes_req - (bytes_xfer % dma_desc->bytes_req); return residual;