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crypto: rockchip - use read_poll_timeout

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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>
This commit is contained in:
Corentin Labbe 2022-09-27 07:54:55 +00:00 committed by Herbert Xu
parent e803188400
commit 37bc22159c
1 changed files with 12 additions and 12 deletions
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24
drivers/crypto/rockchip/rk3288_crypto_ahash.c
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@ -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);