From cf82dabd29168b19c4ac651a11010ded34785142 Mon Sep 17 00:00:00 2001 From: Alan Ott Date: Mon, 18 Mar 2013 12:06:42 +0000 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/net/ieee802154/mrf24j40.c | 5 ++--- 1 file 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) -- 2.20.1