Messages in this thread | | | Subject | Re: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support | From | Richard Weinberger <> | Date | Tue, 28 Feb 2017 22:41:11 +0100 |
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Vignesh,
Am 27.02.2017 um 13:08 schrieb Vignesh R: > 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;
Isn't there a better way to detect whether a bounce buffer is needed or not?
Thanks, //richard
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