From patchwork Tue Dec 27 23:03:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 13082531 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4FAB9C4332F for ; Tue, 27 Dec 2022 23:04:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229973AbiL0XEi (ORCPT ); Tue, 27 Dec 2022 18:04:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44330 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232208AbiL0XEU (ORCPT ); Tue, 27 Dec 2022 18:04:20 -0500 Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 03DBEDF4E for ; Tue, 27 Dec 2022 15:04:16 -0800 (PST) Received: by mail-lf1-x12a.google.com with SMTP id bq39so13625904lfb.0 for ; Tue, 27 Dec 2022 15:04:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=kkirVz/33x31xBhYi0JWwLjL/jhzRe4WWEuKEkFMsWo=; b=RLGiwgxjXRKc4EsXCwQvENz0JiKBKPzIuszL+O72xNIyJFyyHKJeL8r9MEzjhKdZS8 q4HqvnZwSMwOyApCGuSCpVLJWrEVHv4EdSQhHTZWdH+R1g7qB5uQRAd5NQ4QdD18Ugml twuEIRSX6sESMNwC7fenxmYuaQ8nL0sjFFB5sxfcPLRLqNfglSk2ap2gferOOXxEFAnX ism+O2+77CnkhV+3dIJfDwEqf9NUczrfpn2xsVHmzHLC+Eiwoq6NjYqf3haNgghsWgZh kXaHxyrS4GatK5nDBFeiZTHjfInTE1y5g+HYPADV+PvYxtkgcyw4u+AE/g40Oumfuaon u1ZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=kkirVz/33x31xBhYi0JWwLjL/jhzRe4WWEuKEkFMsWo=; b=g4IJFibWPMHBv6kaODapeawYpdNWso2HAwI4tD/sCXlwXqin3AVv9ec8ShcBQ/cyZN HfoPdZx0wP4o2EJuFB5r+7yTQ9xSsRIhHyrpdw9SimffpiEtsuyak6JPXD+g5OUBsEq4 KBaOKiA1XU0xuq3S1NSQqWSjjNYg9ooo56gFuyBnSW7xcdx+VkLUksb8nY16MJCTu63t /UKpIdPSSj5X1YWQvNzAFEYkQXxzlNaLRxnFfM5FUGPH5k098/Mtw/wEhV9Rojz+HuEc uSXqs+MR+uwghS8fGbVwf/CxWu0bHevUA0D5/nK4kMlGgbSS377wTKh1GGDkh0JjqS9b j4MA== X-Gm-Message-State: AFqh2koqdptX4UZhEpg1Z+ovl5zXQ3TXnSAQ5rufbdKEDIml2lmRQxoE Ajzu0zNVL+uotRd1JsGUr4qz0g== X-Google-Smtp-Source: AMrXdXuRg+RWZECcd05OZBukglo+UoFlAtGbMa+BgMEGs3zidEZnp+S5U/6qnvyErizFnkt12pIUFg== X-Received: by 2002:a05:6512:3d11:b0:4b5:2ef3:fd2a with SMTP id d17-20020a0565123d1100b004b52ef3fd2amr12007982lfv.47.1672182254389; Tue, 27 Dec 2022 15:04:14 -0800 (PST) Received: from Fecusia.local (c-05d8225c.014-348-6c756e10.bbcust.telenor.se. [92.34.216.5]) by smtp.gmail.com with ESMTPSA id bg25-20020a05651c0b9900b0027fbd4ee003sm876925ljb.124.2022.12.27.15.04.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Dec 2022 15:04:12 -0800 (PST) From: Linus Walleij Date: Wed, 28 Dec 2022 00:03:36 +0100 Subject: [PATCH 4/7] crypto: stm32/hash: Make dma_mode a bool MIME-Version: 1.0 Message-Id: <20221227-ux500-stm32-hash-v1-4-b637ac4cda01@linaro.org> References: <20221227-ux500-stm32-hash-v1-0-b637ac4cda01@linaro.org> In-Reply-To: <20221227-ux500-stm32-hash-v1-0-b637ac4cda01@linaro.org> To: Herbert Xu , "David S. Miller" , Rob Herring , Krzysztof Kozlowski , Maxime Coquelin , Alexandre Torgue , Lionel Debieve Cc: linux-crypto@vger.kernel.org, devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Linus Walleij X-Mailer: b4 0.11.1 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org This flag enables/disables DMA mode and is a true/false flag so make it a bool. Clamp the value from the HASH_HWCFGR register to a bool as well using a double-bang construction. Signed-off-by: Linus Walleij --- drivers/crypto/stm32/stm32-hash.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index cc0a4e413a82..5f03be121787 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -166,7 +166,7 @@ struct stm32_hash_dev { struct reset_control *rst; void __iomem *io_base; phys_addr_t phys_base; - u32 dma_mode; + bool dma_mode; u32 dma_maxburst; struct ahash_request *req; @@ -481,7 +481,7 @@ static int stm32_hash_hmac_dma_send(struct stm32_hash_dev *hdev) struct stm32_hash_ctx *ctx = crypto_ahash_ctx(tfm); int err; - if (ctx->keylen < HASH_DMA_THRESHOLD || (hdev->dma_mode == 1)) { + if (ctx->keylen < HASH_DMA_THRESHOLD || (hdev->dma_mode)) { err = stm32_hash_write_key(hdev); if (stm32_hash_wait_busy(hdev)) return -ETIMEDOUT; @@ -568,7 +568,7 @@ static int stm32_hash_dma_send(struct stm32_hash_dev *hdev) sg[0] = *tsg; if (sg_is_last(sg)) { - if (hdev->dma_mode == 1) { + if (hdev->dma_mode) { len = (ALIGN(sg->length, 16) - 16); ncp = sg_pcopy_to_buffer( @@ -602,7 +602,7 @@ static int stm32_hash_dma_send(struct stm32_hash_dev *hdev) return err; } - if (hdev->dma_mode == 1) { + if (hdev->dma_mode) { if (stm32_hash_wait_busy(hdev)) return -ETIMEDOUT; reg = stm32_hash_read(hdev, HASH_CR); @@ -663,7 +663,7 @@ static bool stm32_hash_dma_aligned_data(struct ahash_request *req) return false; if (sg_nents(req->src) > 1) { - if (hdev->dma_mode == 1) + if (hdev->dma_mode) return false; for_each_sg(req->src, sg, sg_nents(req->src), i) { if ((!IS_ALIGNED(sg->length, sizeof(u32))) && @@ -1525,7 +1525,7 @@ static int stm32_hash_probe(struct platform_device *pdev) if (ret) goto err_engine_start; - hdev->dma_mode = stm32_hash_read(hdev, HASH_HWCFGR); + hdev->dma_mode = !!stm32_hash_read(hdev, HASH_HWCFGR); /* Register algos */ ret = stm32_hash_register_algs(hdev);