summaryrefslogtreecommitdiff
path: root/drivers/crypto/rockchip
diff options
context:
space:
mode:
authorCorentin Labbe <clabbe@baylibre.com>2022-09-27 10:54:55 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2022-10-28 07:36:33 +0300
commit37bc22159c456ad43fb852fc6ed60f4081df25df (patch)
treeb5b1c2efb2f8b5f2815d7108d0ba28c033b562b3 /drivers/crypto/rockchip
parente803188400d32d28ecfbef0878c289e3c7026723 (diff)
downloadlinux-37bc22159c456ad43fb852fc6ed60f4081df25df.tar.xz
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/crypto/rockchip')
-rw-r--r--drivers/crypto/rockchip/rk3288_crypto_ahash.c24
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);