Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754328AbdFNFxc (ORCPT ); Wed, 14 Jun 2017 01:53:32 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:43024 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754274AbdFNFx3 (ORCPT ); Wed, 14 Jun 2017 01:53:29 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 993FE60863 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=varada@codeaurora.org From: Varadarajan Narayanan To: 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 Cc: Varadarajan Narayanan Subject: [PATCH 04/18] spi: qup: Add completion timeout for fifo/block mode Date: Wed, 14 Jun 2017 11:22:17 +0530 Message-Id: <1497419551-21834-5-git-send-email-varada@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1497419551-21834-1-git-send-email-varada@codeaurora.org> References: <1497419551-21834-1-git-send-email-varada@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2223 Lines: 63 Signed-off-by: Andy Gross Signed-off-by: Varadarajan Narayanan --- drivers/spi/spi-qup.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c index 272e48e..d3ccf53 100644 --- a/drivers/spi/spi-qup.c +++ b/drivers/spi/spi-qup.c @@ -330,7 +330,8 @@ 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); int ret; @@ -362,7 +363,8 @@ static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer) 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; @@ -381,6 +383,9 @@ 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; } @@ -624,7 +629,6 @@ static int spi_qup_transfer_one(struct spi_master *master, timeout = DIV_ROUND_UP(xfer->len * 8, timeout); timeout = 100 * msecs_to_jiffies(timeout); - spin_lock_irqsave(&controller->lock, flags); controller->xfer = xfer; controller->error = 0; @@ -635,10 +639,10 @@ static int spi_qup_transfer_one(struct spi_master *master, if (spi_qup_is_dma_xfer(controller->mode)) { reinit_completion(&controller->rxc); reinit_completion(&controller->txc); - ret = spi_qup_do_dma(master, xfer); + ret = spi_qup_do_dma(master, xfer, timeout); } else { reinit_completion(&controller->done); - ret = spi_qup_do_pio(master, xfer); + ret = spi_qup_do_pio(master, xfer, timeout); } if (ret) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation