Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 794595d2 authored by Cyrille Pitchen's avatar Cyrille Pitchen Committed by Herbert Xu
Browse files

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: default avatarCyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent ccbf7298

drivers/crypto/atmel-aes.c

+1 −2
Original line number Diff line number Diff line
@@ -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,