From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754130AbcDYJxU (ORCPT ); Mon, 25 Apr 2016 05:53:20 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:37906 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752383AbcDYJxT (ORCPT ); Mon, 25 Apr 2016 05:53:19 -0400 From: Vignesh R To: Mark Brown CC: , , , Vignesh R Subject: [PATCH v2 0/3] spi: Add DMA support for ti-qspi Date: Mon, 25 Apr 2016 15:13:59 +0530 Message-ID: <1461577442-8853-1-git-send-email-vigneshr@ti.com> X-Mailer: git-send-email 2.8.1 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series adds support for DMA during QSPI flash read via memory mapped mode. The first patch adds a check to spi_map_buf() API to return error when kmap'd buffers are passed for DMA mapping. Second patch adds support for using DMA on top of spi_flash_read() API using DMA sg_table mapping support in SPI core. Third map adds DMA support for TI QSPI in memory mapped read mode. Tested on DRA74 EVM and DRA72 EVM on linux-next. v1: https://lkml.org/lkml/2016/4/4/855 Vignesh R (3): spi: return error if kmap'd buffers passed to spi_map_buf() spi: Add DMA support for spi_flash_read() spi: spi-ti-qspi: Add DMA support for QSPI mmap read drivers/spi/spi-ti-qspi.c | 196 +++++++++++++++++++++++++++++++++++++++++++--- drivers/spi/spi.c | 18 ++++- include/linux/spi/spi.h | 4 + 3 files changed, 204 insertions(+), 14 deletions(-) -- 2.8.1