From: Vignesh R <vigneshr@ti.com>
To: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
Marek Vasut <marek.vasut@gmail.com>,
Richard Weinberger <richard@nod.at>,
Cyrille Pitchen <cyrille.pitchen@atmel.com>
Cc: <linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
<linux-omap@vger.kernel.org>, Vignesh R <vigneshr@ti.com>,
Frode Isaksen <fisaksen@baylibre.com>,
<linux-spi@vger.kernel.org>
Subject: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support
Date: Mon, 27 Feb 2017 17:38:39 +0530 [thread overview]
Message-ID: <20170227120839.16545-3-vigneshr@ti.com> (raw)
In-Reply-To: <20170227120839.16545-1-vigneshr@ti.com>
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 <vigneshr@ti.com>
---
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
WARNING: multiple messages have this Message-ID (diff)
From: Vignesh R <vigneshr@ti.com>
To: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
Marek Vasut <marek.vasut@gmail.com>,
Richard Weinberger <richard@nod.at>,
Cyrille Pitchen <cyrille.pitchen@atmel.com>
Cc: Frode Isaksen <fisaksen@baylibre.com>,
Vignesh R <vigneshr@ti.com>,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
linux-mtd@lists.infradead.org, linux-omap@vger.kernel.org
Subject: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support
Date: Mon, 27 Feb 2017 17:38:39 +0530 [thread overview]
Message-ID: <20170227120839.16545-3-vigneshr@ti.com> (raw)
In-Reply-To: <20170227120839.16545-1-vigneshr@ti.com>
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 <vigneshr@ti.com>
---
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
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2017-02-27 12:14 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-27 12:08 [RFC PATCH 0/2] mtd: spi-nor: Handle vmalloc'd buffers Vignesh R
2017-02-27 12:08 ` Vignesh R
2017-02-27 12:08 ` [RFC PATCH 1/2] mtd: spi-nor: Introduce bounce buffer to handle " Vignesh R
2017-02-27 12:08 ` Vignesh R
2017-02-28 21:39 ` Richard Weinberger
2017-02-28 21:39 ` Richard Weinberger
2017-03-01 5:13 ` Vignesh R
2017-03-01 5:13 ` Vignesh R
2017-03-01 10:09 ` Cyrille Pitchen
2017-03-01 10:09 ` Cyrille Pitchen
2017-03-01 10:18 ` Boris Brezillon
2017-03-01 10:18 ` Boris Brezillon
2017-03-01 11:18 ` Frode Isaksen
2017-03-01 11:18 ` Frode Isaksen
2017-03-01 12:12 ` Boris Brezillon
2017-03-01 12:12 ` Boris Brezillon
2017-03-01 11:50 ` Vignesh R
2017-03-01 11:50 ` Vignesh R
2017-02-27 12:08 ` Vignesh R [this message]
2017-02-27 12:08 ` [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support Vignesh R
2017-02-28 21:41 ` Richard Weinberger
2017-03-01 4:54 ` Vignesh R
2017-03-01 4:54 ` Vignesh R
2017-03-01 10:43 ` Cyrille Pitchen
2017-03-01 10:43 ` Cyrille Pitchen
2017-03-01 11:14 ` Frode Isaksen
2017-03-01 11:14 ` Frode Isaksen
2017-03-01 11:46 ` Vignesh R
2017-03-01 11:46 ` Vignesh R
2017-03-01 11:46 ` Vignesh R
2017-03-01 12:23 ` Boris Brezillon
2017-03-01 12:23 ` Boris Brezillon
2017-03-01 14:21 ` Cyrille Pitchen
2017-03-01 14:21 ` Cyrille Pitchen
2017-03-01 14:28 ` Boris Brezillon
2017-03-01 14:28 ` Boris Brezillon
2017-03-01 14:28 ` Boris Brezillon
2017-03-01 14:30 ` Cyrille Pitchen
2017-03-01 14:30 ` Cyrille Pitchen
2017-03-01 14:30 ` Cyrille Pitchen
2017-03-01 15:52 ` Mark Brown
2017-03-01 16:04 ` Boris Brezillon
2017-03-01 16:04 ` Boris Brezillon
2017-03-01 16:55 ` Boris Brezillon
2017-03-01 16:55 ` Boris Brezillon
2017-03-02 9:06 ` Frode Isaksen
2017-03-02 9:06 ` Frode Isaksen
2017-03-02 13:54 ` Vignesh R
2017-03-02 13:54 ` Vignesh R
2017-03-02 14:29 ` Boris Brezillon
2017-03-02 14:29 ` Boris Brezillon
2017-03-02 15:03 ` Frode Isaksen
2017-03-02 15:03 ` Frode Isaksen
2017-03-02 15:25 ` Boris Brezillon
2017-03-02 15:25 ` Boris Brezillon
2017-03-03 9:02 ` Frode Isaksen
2017-03-03 9:02 ` Frode Isaksen
2017-03-02 16:45 ` Cyrille Pitchen
2017-03-02 16:45 ` Cyrille Pitchen
2017-03-02 17:00 ` Mark Brown
2017-03-02 17:00 ` Mark Brown
2017-03-02 19:49 ` Boris Brezillon
2017-03-02 19:49 ` Boris Brezillon
2017-03-03 12:50 ` Mark Brown
2017-03-03 12:50 ` Mark Brown
2017-03-06 11:47 ` Vignesh R
2017-03-06 11:47 ` Vignesh R
2017-03-14 13:21 ` Vignesh R
2017-02-27 14:03 ` [RFC PATCH 0/2] mtd: spi-nor: Handle vmalloc'd buffers Frode Isaksen
2017-02-27 14:03 ` Frode Isaksen
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