crypto: atmel-tdes - Remove useless write in Control Register

As claimed by the datasheet, writing 0 into the Control Register has no
effect. Remove this useless register access.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index 732524f..d125927 100644 (file)
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -265,7 +265,7 @@ static void atmel_tdes_dma_callback(void *data)
 static int atmel_tdes_write_ctrl(struct atmel_tdes_dev *dd)
 {
        int err;
-       u32 valcr = 0, valmr = TDES_MR_SMOD_PDC;
+       u32 valmr = TDES_MR_SMOD_PDC;
 
        err = atmel_tdes_hw_init(dd);
 
@@ -307,7 +307,6 @@ static int atmel_tdes_write_ctrl(struct atmel_tdes_dev *dd)
        if ((dd->flags & TDES_FLAGS_ENCRYPT) || (dd->flags & TDES_FLAGS_OFB))
                valmr |= TDES_MR_CYPHER_ENC;
 
-       atmel_tdes_write(dd, TDES_CR, valcr);
        atmel_tdes_write(dd, TDES_MR, valmr);
 
        atmel_tdes_write_n(dd, TDES_KEY1W1R, dd->ctx->key,