Certain spi controllers may support memory mapped interface to read from m25p80 type flash devices. This interface provides better read performance than regular SPI interface. Call spi_mtd_mmap_read() interface, if supported, to make use of memory-mapped interface. Signed-off-by: Vignesh R <vigneshr@xxxxxx> --- drivers/mtd/devices/m25p80.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index fe9ceb7b5405..7ef0c5009ead 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -131,6 +131,11 @@ static int m25p80_read(struct spi_nor *nor, loff_t from, size_t len, /* convert the dummy cycles to the number of bytes */ dummy /= 8; + if (spi_mmap_read_supported(spi)) + return spi_mtd_mmap_read(spi, from, len, retlen, buf, + nor->read_opcode, + nor->addr_width, dummy); + spi_message_init(&m); memset(t, 0, (sizeof t)); -- 2.6.3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
