Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752366AbdHHLUB (ORCPT ); Tue, 8 Aug 2017 07:20:01 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:55910 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752417AbdHHLSp (ORCPT ); Tue, 8 Aug 2017 07:18:45 -0400 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: <1501224781-19519-4-git-send-email-varada@codeaurora.org> Message-Id: Date: Tue, 08 Aug 2017 12:18:35 +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: Add completion timeout" 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-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3189 Lines: 97 The patch spi: qup: Add completion timeout 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 5f13fd60b1e709b9387877b0b65d605df9fff1d6 Mon Sep 17 00:00:00 2001 From: Varadarajan Narayanan Date: Fri, 28 Jul 2017 12:22:50 +0530 Subject: [PATCH] spi: qup: Add completion timeout Add i/o completion timeout for DMA and PIO modes. Signed-off-by: Andy Gross Signed-off-by: Varadarajan Narayanan Signed-off-by: Mark Brown --- drivers/spi/spi-qup.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c index abe799bbc67f..fdd34c3ce426 100644 --- a/drivers/spi/spi-qup.c +++ b/drivers/spi/spi-qup.c @@ -331,8 +331,10 @@ static void spi_qup_dma_terminate(struct spi_master *master, dmaengine_terminate_all(master->dma_rx); } -static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer) +static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer, + unsigned long timeout) { + struct spi_qup *qup = spi_master_get_devdata(master); dma_async_tx_callback rx_done = NULL, tx_done = NULL; int ret; @@ -357,10 +359,14 @@ static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer) dma_async_issue_pending(master->dma_tx); } + if (!wait_for_completion_timeout(&qup->done, timeout)) + return -ETIMEDOUT; + return 0; } -static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer) +static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer, + unsigned long timeout) { struct spi_qup *qup = spi_master_get_devdata(master); int ret; @@ -379,6 +385,9 @@ static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer) spi_qup_fifo_write(qup, xfer); + if (!wait_for_completion_timeout(&qup->done, timeout)) + return -ETIMEDOUT; + return 0; } @@ -632,9 +641,9 @@ static int spi_qup_transfer_one(struct spi_master *master, spin_unlock_irqrestore(&controller->lock, flags); if (spi_qup_is_dma_xfer(controller->mode)) - ret = spi_qup_do_dma(master, xfer); + ret = spi_qup_do_dma(master, xfer, timeout); else - ret = spi_qup_do_pio(master, xfer); + ret = spi_qup_do_pio(master, xfer, timeout); if (ret) goto exit; -- 2.13.2