From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752065AbdB0MOL (ORCPT ); Mon, 27 Feb 2017 07:14:11 -0500 Received: from fllnx209.ext.ti.com ([198.47.19.16]:45883 "EHLO fllnx209.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751654AbdB0MOH (ORCPT ); Mon, 27 Feb 2017 07:14:07 -0500 From: Vignesh R To: David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Richard Weinberger , Cyrille Pitchen CC: , , , Vignesh R , Frode Isaksen , Subject: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support Date: Mon, 27 Feb 2017 17:38:39 +0530 Message-ID: <20170227120839.16545-3-vigneshr@ti.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170227120839.16545-1-vigneshr@ti.com> References: <20170227120839.16545-1-vigneshr@ti.com> 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 Many SPI controller drivers use DMA to read/write from m25p80 compatible flashes. Therefore enable bounce buffers support provided by spi-nor framework to take care of handling vmalloc'd buffers which may not be DMA'able. Signed-off-by: Vignesh R --- drivers/mtd/devices/m25p80.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index c4df3b1bded0..d05acf22eadf 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -241,6 +241,7 @@ static int m25p_probe(struct spi_device *spi) else flash_name = spi->modalias; + nor->flags |= SNOR_F_USE_BOUNCE_BUFFER; ret = spi_nor_scan(nor, flash_name, mode); if (ret) return ret; -- 2.11.0