Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753207AbdFPI7Q (ORCPT ); Fri, 16 Jun 2017 04:59:16 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:45054 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752891AbdFPI7N (ORCPT ); Fri, 16 Jun 2017 04:59:13 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 78B9660AEE 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 00/15] spi: qup: Fixes and add support for >64k transfers Date: Fri, 16 Jun 2017 14:28:43 +0530 Message-Id: <1497603538-12750-1-git-send-email-varada@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1816 Lines: 43 v2: Incorporate feedback from Andy Gross, Sricharan, Stanimir Varbanov Modified the QUP-v1 dma completion sequence to QUP-v2 as per feedback. Removed code that used controller->xfer to identify extra interrupts, since with the fixes done to handle i/o completion we don't see extra interrupts. v1: This series fixes some existing issues in the code for both interrupt and dma mode. Patches 1 - 11 are the fixes. Random failures/timeout are observed without these fixes. Also, the current driver does not support block transfers > 64K and the driver quietly fails. Patches 12 - 18 add support for this in both interrupt and dma mode. The entire series has been tested on ipq4019 with SPI-NOR flash for block sizes > 64k. Varadarajan Narayanan (15): spi: qup: Enable chip select support spi: qup: Setup DMA mode correctly spi: qup: Add completion timeout for dma mode spi: qup: Add completion timeout for fifo/block mode spi: qup: Place the QUP in run mode before DMA transactions spi: qup: Fix error handling in spi_qup_prep_sg spi: qup: Fix transaction done signaling spi: qup: Do block sized read/write in block mode spi: qup: refactor spi_qup_io_config into two functions spi: qup: call io_config in mode specific function spi: qup: allow block mode to generate multiple transactions spi: qup: refactor spi_qup_prep_sg spi: qup: allow multiple DMA transactions per spi xfer spi: qup: Ensure done detection spi: qup: support for qup v1 dma .../devicetree/bindings/spi/qcom,spi-qup.txt | 6 + drivers/spi/spi-qup.c | 629 ++++++++++++++------- 2 files changed, 440 insertions(+), 195 deletions(-) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation