diff options
| author | Corentin Labbe <clabbe@baylibre.com> | 2022-09-27 07:54:55 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-10-28 12:36:33 +0800 |
| commit | 37bc22159c456ad43fb852fc6ed60f4081df25df (patch) | |
| tree | b5b1c2efb2f8b5f2815d7108d0ba28c033b562b3 /drivers | |
| parent | e803188400d32d28ecfbef0878c289e3c7026723 (diff) | |
| download | linux-37bc22159c456ad43fb852fc6ed60f4081df25df.tar.bz2 | |
crypto: rockchip - use read_poll_timeout
Use read_poll_timeout instead of open coding it.
In the same time, fix indentation of related comment.
Reviewed-by: John Keeping <john@metanate.com>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/rockchip/rk3288_crypto_ahash.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c index 137013bd4410..1fbab86c9238 100644 --- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c +++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c @@ -10,6 +10,7 @@ */ #include <linux/device.h> #include <asm/unaligned.h> +#include <linux/iopoll.h> #include "rk3288_crypto.h" /* @@ -295,18 +296,17 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq) sg = sg_next(sg); } - /* - * it will take some time to process date after last dma - * transmission. - * - * waiting time is relative with the last date len, - * so cannot set a fixed time here. - * 10us makes system not call here frequently wasting - * efficiency, and make it response quickly when dma - * complete. - */ - while (!CRYPTO_READ(tctx->dev, RK_CRYPTO_HASH_STS)) - udelay(10); + /* + * it will take some time to process date after last dma + * transmission. + * + * waiting time is relative with the last date len, + * so cannot set a fixed time here. + * 10us makes system not call here frequently wasting + * efficiency, and make it response quickly when dma + * complete. + */ + readl_poll_timeout(tctx->dev->reg + RK_CRYPTO_HASH_STS, v, v == 0, 10, 1000); for (i = 0; i < crypto_ahash_digestsize(tfm) / 4; i++) { v = readl(tctx->dev->reg + RK_CRYPTO_HASH_DOUT_0 + i * 4); |