diff options
| author |   Cyrille Pitchen <cyrille.pitchen@atmel.com> | 2015-12-17 17:48:40 +0100 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2015-12-23 18:19:51 +0800 |
| commit | 794595d2047a31702905b3666145c6a59bfee472 (patch) | |
| tree | 8f5219d7ac491251622e9e22644fd1e36d1ed254 /drivers/crypto | |
| parent | crypto: atmel-aes - make crypto request queue management more generic (diff) | |
| download | linux-dev-794595d2047a31702905b3666145c6a59bfee472.tar.xz linux-dev-794595d2047a31702905b3666145c6a59bfee472.zip | |
crypto: atmel-aes - remove useless write in the Control Register
As claimed by the datasheet, writing 0 into the Control Register has no
effet. So we remove this useless register access.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/atmel-aes.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c index 48407a7f6f61..f1ea9c893561 100644 --- a/drivers/crypto/atmel-aes.c +++ b/drivers/crypto/atmel-aes.c @@ -511,7 +511,7 @@ static int atmel_aes_crypt_dma_start(struct atmel_aes_dev *dd) static void atmel_aes_write_ctrl(struct atmel_aes_dev *dd, bool use_dma, const u32 *iv) { - u32 valcr = 0, valmr = 0; + u32 valmr = 0; /* MR register must be set before IV registers */ if (dd->ctx->keylen == AES_KEYSIZE_128) @@ -554,7 +554,6 @@ static void atmel_aes_write_ctrl(struct atmel_aes_dev *dd, bool use_dma, valmr |= AES_MR_SMOD_AUTO; } - atmel_aes_write(dd, AES_CR, valcr); atmel_aes_write(dd, AES_MR, valmr); atmel_aes_write_n(dd, AES_KEYWR(0), dd->ctx->key, |