[PATCH] spi/atmel: fix speed_hz check in atmel_spi_transfer()

[Joachim Eastwood <manabian-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

atmel_spi_transfer() would check speed_hz and fail if
the speed was changed in the transfer. After commit
"spi: make sure all transfer has proper speed set"
this would happen on all transfers.

Change speed_hz check to only fail if a lower speed
than max is requested.

Signed-off-by: Joachim Eastwood <manabian-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
Hi Grant,

Fix for spi-atmel as per your suggestion; check if
speed_hz is less than bus max speed.

regards
Joachim Eastwood

 drivers/spi/spi-atmel.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 656d137..80f5867 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -847,8 +847,8 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg)
 		}
 
 		/* FIXME implement these protocol options!! */
-		if (xfer->speed_hz) {
-			dev_dbg(&spi->dev, "no protocol options yet\n");
+		if (xfer->speed_hz < spi->max_speed_hz) {
+			dev_dbg(&spi->dev, "can't change speed in transfer\n");
 			return -ENOPROTOOPT;
 		}
 
-- 
1.8.0


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