linux-kernel - [PATCH 2/6] mtd: m25p80: Use spi-nor quad page program

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Date:	Wed, 10 Aug 2016 02:10:21 +0530
From:	Jagan Teki <jteki@...nedev.com>
To:	linux-mtd@...ts.infradead.org
Cc:	David Woodhouse <dwmw2@...radead.org>,
	linux-kernel@...r.kernel.org, Jagan Teki <jteki@...nedev.com>,
	Brian Norris <computersforpeace@...il.com>
Subject: [PATCH 2/6] mtd: m25p80: Use spi-nor quad page program

Identify the 4-wire tx transfer from spi controller mode
value and then assign QPP support to nor->flags to make use
of that.

Cc: Brian Norris <computersforpeace@...il.com>
Signed-off-by: Jagan Teki <jteki@...nedev.com>
---
 drivers/mtd/devices/m25p80.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 9cf7fcd..1033595 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -224,6 +224,8 @@ static int m25p_probe(struct spi_device *spi)
 		mode = SPI_NOR_QUAD;
 	else if (spi->mode & SPI_RX_DUAL)
 		mode = SPI_NOR_DUAL;
+	else if (spi->mode & SPI_TX_QUAD)
+		nor->flags = SNOR_F_USE_QPP;
 
 	if (data && data->name)
 		nor->mtd.name = data->name;
-- 
2.7.4