From patchwork Tue Aug 8 11:18:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 9887477 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 36D7C60352 for ; Tue, 8 Aug 2017 11:20:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 295FA27F8C for ; Tue, 8 Aug 2017 11:20:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1E5ED287AC; Tue, 8 Aug 2017 11:20:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C81CA27F8C for ; Tue, 8 Aug 2017 11:20:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752420AbdHHLSo (ORCPT ); Tue, 8 Aug 2017 07:18:44 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:55808 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752397AbdHHLSl (ORCPT ); Tue, 8 Aug 2017 07:18:41 -0400 Received: from [2001:470:1f1d:6b5:7e7a:91ff:fede:4a45] (helo=finisterre) by mezzanine.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1df2Ww-0000in-Ne; Tue, 08 Aug 2017 11:18:37 +0000 Received: from broonie by finisterre with local (Exim 4.89) (envelope-from ) id 1df2Wt-0006Nu-RE; Tue, 08 Aug 2017 12:18:31 +0100 From: Mark Brown To: Varadarajan Narayanan Cc: Andy Gross , Mark Brown , broonie@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, andy.gross@linaro.org, david.brown@linaro.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-spi@vger.kernel.org In-Reply-To: <1500882445-29008-5-git-send-email-varada@codeaurora.org> Message-Id: Date: Tue, 08 Aug 2017 12:18:31 +0100 X-SA-Exim-Connect-IP: 2001:470:1f1d:6b5:7e7a:91ff:fede:4a45 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Applied "spi: qup: Place the QUP in run mode before DMA" to the spi tree X-SA-Exim-Version: 4.2.1 (built Tue, 02 Aug 2016 21:08:31 +0000) X-SA-Exim-Scanned: No (on mezzanine.sirena.org.uk); Unknown failure Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The patch spi: qup: Place the QUP in run mode before DMA has been applied to the spi tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark From ce00bab3187f9fc1afac07914959bff0c52547c2 Mon Sep 17 00:00:00 2001 From: Varadarajan Narayanan Date: Fri, 28 Jul 2017 12:22:51 +0530 Subject: [PATCH] spi: qup: Place the QUP in run mode before DMA Signed-off-by: Andy Gross Signed-off-by: Varadarajan Narayanan Signed-off-by: Mark Brown --- drivers/spi/spi-qup.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c index fdd34c3ce426..f1aa5c15d180 100644 --- a/drivers/spi/spi-qup.c +++ b/drivers/spi/spi-qup.c @@ -343,6 +343,14 @@ static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer, else if (xfer->tx_buf) tx_done = spi_qup_dma_done; + /* before issuing the descriptors, set the QUP to run */ + ret = spi_qup_set_state(qup, QUP_STATE_RUN); + if (ret) { + dev_warn(qup->dev, "%s(%d): cannot set RUN state\n", + __func__, __LINE__); + return ret; + } + if (xfer->rx_buf) { ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done); if (ret) @@ -385,6 +393,13 @@ static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer, spi_qup_fifo_write(qup, xfer); + ret = spi_qup_set_state(qup, QUP_STATE_RUN); + if (ret) { + dev_warn(qup->dev, "%s(%d): cannot set RUN state\n", + __func__, __LINE__); + return ret; + } + if (!wait_for_completion_timeout(&qup->done, timeout)) return -ETIMEDOUT;