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Date: Tue, 28 Jul 2015 14:11:14 +0530 From: Vignesh R <vigneshr@...com> To: Mark Brown <broonie@...nel.org>, David Woodhouse <dwmw2@...radead.org>, Brian Norris <computersforpeace@...il.com>, Tony Lindgren <tony@...mide.com>, Russell King <linux@....linux.org.uk> CC: Huang Shijie <b32955@...escale.com>, Vignesh R <vigneshr@...com>, <linux-omap@...r.kernel.org>, <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <linux-mtd@...ts.infradead.org>, <linux-spi@...r.kernel.org> Subject: [RFC PATCH 3/5] mtd: devices: m25p80: set flag to request memory mapped read 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 <vigneshr@...com> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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