From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vignesh R Subject: [RFC PATCH 3/5] mtd: devices: m25p80: set flag to request memory mapped read Date: Tue, 28 Jul 2015 14:11:14 +0530 Message-ID: <1438072876-16338-4-git-send-email-vigneshr@ti.com> References: <1438072876-16338-1-git-send-email-vigneshr@ti.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Huang Shijie , Vignesh R , , , , , , To: Mark Brown , David Woodhouse , Brian Norris , Tony Lindgren , Russell King Return-path: In-Reply-To: <1438072876-16338-1-git-send-email-vigneshr@ti.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-spi.vger.kernel.org Set use_mmap_read flag to true, to indicate to spi-master that the spi-message is from mtd layer. This helps spi-master to do memory mapped reads over SPI flash memories, when hardware support is available. Signed-off-by: Vignesh R --- drivers/mtd/devices/m25p80.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index d313f948b96c..aac2121c5454 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -148,6 +148,9 @@ static int m25p80_read(struct spi_nor *nor, loff_t from, size_t len, t[1].len = len; spi_message_add_tail(&t[1], &m); + m.spi = spi; + m.use_mmap_mode = true; + spi_sync(spi, &m); *retlen = m.actual_length - m25p_cmdsz(nor) - dummy; -- 2.4.6