From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 25 Feb 2014 11:57:19 +0000 (+0800)
Subject: spi: atmel: Let spi core handle validating transfer length
X-Git-Tag: firefly_0821_release~176^2~4201^2~7^3~2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ad6f33d22c25e7340107a330e6de60bba57ecf52;p=firefly-linux-kernel-4.4.55.git

spi: atmel: Let spi core handle validating transfer length

spi core will handle validating transfer length since commit 4d94bd21b333
"spi: core: Validate length of the transfers in message".
So remove the same checking in this driver.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 88bebf8cf0e5..4804586edd29 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1087,14 +1087,6 @@ static int atmel_spi_one_transfer(struct spi_master *master,
 		}
 	}
 
-	if (xfer->bits_per_word > 8) {
-		if (xfer->len % 2) {
-			dev_dbg(&spi->dev,
-			"buffer len should be 16 bits aligned\n");
-			return -EINVAL;
-		}
-	}
-
 	/*
 	 * DMA map early, for performance (empties dcache ASAP) and
 	 * better fault reporting.