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[90.63.244.31]) by smtp.googlemail.com with ESMTPSA id v5-20020a5d59c5000000b002257fd37877sm15556709wry.6.2022.09.01.05.57.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Sep 2022 05:57:33 -0700 (PDT) From: Corentin Labbe To: heiko@sntech.de, herbert@gondor.apana.org.au, ardb@kernel.org, davem@davemloft.net, krzysztof.kozlowski+dt@linaro.org, mturquette@baylibre.com, robh+dt@kernel.org, sboyd@kernel.org Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, Corentin Labbe , John Keeping Subject: [PATCH v9 17/33] crypto: rockchip: use read_poll_timeout Date: Thu, 1 Sep 2022 12:56:54 +0000 Message-Id: <20220901125710.3733083-18-clabbe@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220901125710.3733083-1-clabbe@baylibre.com> References: <20220901125710.3733083-1-clabbe@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Use read_poll_timeout instead of open coding it. In the same time, fix indentation of related comment. Reviewed-by: John Keeping Signed-off-by: Corentin Labbe --- drivers/crypto/rockchip/rk3288_crypto_ahash.c | 24 +++++++++---------- 1 file 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 #include +#include #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); -- 2.35.1