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authorAlan Ott <alan@signal11.us>2013-03-18 12:06:42 +0000
committerDavid S. Miller <davem@davemloft.net>2013-03-19 10:07:49 -0400
commitcf82dabd29168b19c4ac651a11010ded34785142 (patch)
tree1458ad2dfda02cd0b743db24b4460ddec576875d
parent7a1c2318868615a522610c05192dbc9dd423647d (diff)
mrf24j40: Increase max SPI speed to 10MHz
Upon consulting the datasheet further, it does indicates a maximum speed for SCK at 10MHz. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ieee802154/mrf24j40.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
index 582c0a3d5773..b4f9b67b0877 100644
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -92,9 +92,8 @@ struct mrf24j40 {
#define MRF24J40_READLONG(reg) (1 << 15 | (reg) << 5)
#define MRF24J40_WRITELONG(reg) (1 << 15 | (reg) << 5 | 1 << 4)
-/* Maximum speed to run the device at. TODO: Get the real max value from
- * someone at Microchip since it isn't in the datasheet. */
-#define MAX_SPI_SPEED_HZ 1000000
+/* The datasheet indicates the theoretical maximum for SCK to be 10MHz */
+#define MAX_SPI_SPEED_HZ 10000000
#define printdev(X) (&X->spi->dev)