From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Subject: Re: [PATCH V14 3/5] i2c: tegra: Add DMA support Date: Thu, 7 Feb 2019 23:46:17 +0300 Message-ID: <59f39ee7-c7da-52ea-cc67-52c5af879c35@gmail.com> References: <1549480569-24860-1-git-send-email-skomatineni@nvidia.com> <1549480569-24860-3-git-send-email-skomatineni@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <1549480569-24860-3-git-send-email-skomatineni@nvidia.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Sowjanya Komatineni , thierry.reding@gmail.com, jonathanh@nvidia.com, mkarthik@nvidia.com, smohammed@nvidia.com, talho@nvidia.com Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org List-Id: linux-tegra@vger.kernel.org 06.02.2019 22:16, Sowjanya Komatineni пишет: > + if (!i2c_dev->msg_read) { > + if (dma) { > + memcpy(buffer, msg->buf, msg->len); > + dma_sync_single_for_device(i2c_dev->dev, > + i2c_dev->dma_phys, > + xfer_size, > + DMA_TO_DEVICE); > + err = tegra_i2c_dma_submit(i2c_dev, xfer_size); > + if (err < 0) { > + dev_err(i2c_dev->dev, > + "starting TX DMA failed, err %d\n", > + err); > + goto unlock; > + } > + This newline is not really needed here. > + } else { > + tegra_i2c_fill_tx_fifo(i2c_dev); > + } > + } That's my last comment for v14. Looking forward for v15!