From patchwork Mon Apr 27 06:42:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lionel Debieve X-Patchwork-Id: 11511233 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4C0AA81 for ; Mon, 27 Apr 2020 06:43:55 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 29AC62072D for ; Mon, 27 Apr 2020 06:43:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="WWGivp06"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=st.com header.i=@st.com header.b="kIGb4VL+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 29AC62072D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=st.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5r2h/8Kz3vmvCb84+2hc/Gcs5roNbr5LeSxOBJiDAw8=; b=WWGivp06MjHl9M x4sW4JxEdEeaxcBk03AIXl+S1zSbdqwVqzlnu59aNVn2iWbWnnnYQcpjbWRyPeO7C+6B/kpCowySO 0GpSzG7cstey10NlwQip7zVQr/0eNFiUcqOviDZxgfpoIlhDKYcRGSXKdVW4gc/b+T3x1P08nLRh4 fPOJ2YVXs9qWrwhiDKsBB5ml29keMd3686MRh2e7XkpK0H9xRvA/9EMAl4SggP4t3Jn+AxZktKyqO ivMIWvnL0lY49dmCDFnHg5Tv7dZWfcdCVBvQomvL9jb1BPuxFBs5/qC8m4n8IOhfzLRNOo+PkcTft 7b5j+2ua73EUmrmNmpeQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jSxUd-00065P-Ie; Mon, 27 Apr 2020 06:43:51 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jSxU2-0005c1-If for linux-arm-kernel@lists.infradead.org; Mon, 27 Apr 2020 06:43:17 +0000 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03R6cFpq024199; Mon, 27 Apr 2020 08:42:58 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=tCfxJ7AYA01s98UE4V0m7JDke4Id5IZKext6NMmW5s4=; b=kIGb4VL+fyuhhQWMEYWLDDOnc4kVtN9LNk+6HKks+iQb5vaDh1XQhetQ0NkZZVRzzQiS HdkxMrvx+iFBO1Z93KBwZXFRf9cmlfNja7NaaMTlvuiUmMnBIiXwjuG5yGIAIhRw5WaU 4ItH9on/vWyzuhF8eTD4nwTe3F3fkQbep9DEMKg9rp9MXjHwI5CBKTd52T2E2StxZGhV NsGM4SsVdQDyRK7xtMy4X2mRUK/xfv6zDvjyq409TidiDLoS1hxhloZMNmEO2yJGv12b jxK9oRDsfpxM0dRwqzrHv2jlJ743O9Y9gFkJ4F4q2bg9jDYrtQkjEFPTrrVIujmvcCWd lQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 30mhjwg3gr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 27 Apr 2020 08:42:58 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 47134100038; Mon, 27 Apr 2020 08:42:56 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag7node2.st.com [10.75.127.20]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 34F5921F67A; Mon, 27 Apr 2020 08:42:56 +0200 (CEST) Received: from localhost (10.75.127.45) by SFHDAG7NODE2.st.com (10.75.127.20) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 27 Apr 2020 08:42:55 +0200 From: Lionel Debieve To: Herbert Xu , "David S . Miller" , Maxime Coquelin , Alexandre Torgue , Subject: [PATCH 1/3] crypto: stm32/hash - defer probe for reset controller Date: Mon, 27 Apr 2020 08:42:24 +0200 Message-ID: <20200427064226.6991-2-lionel.debieve@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200427064226.6991-1-lionel.debieve@st.com> References: <20200427064226.6991-1-lionel.debieve@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG3NODE1.st.com (10.75.127.7) To SFHDAG7NODE2.st.com (10.75.127.20) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-27_03:2020-04-24, 2020-04-27 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200426_234314_977291_573D625F X-CRM114-Status: GOOD ( 15.09 ) X-Spam-Score: -0.9 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [91.207.212.93 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Etienne Carriere Change stm32 HASH driver to defer its probe operation when reset controller device is registered but has not been probed yet. Signed-off-by: Etienne Carriere Reviewed-by: Lionel DEBIEVE --- drivers/crypto/stm32/stm32-hash.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index 167b80eec437..fad6190be088 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -1482,7 +1482,12 @@ static int stm32_hash_probe(struct platform_device *pdev) pm_runtime_enable(dev); hdev->rst = devm_reset_control_get(&pdev->dev, NULL); - if (!IS_ERR(hdev->rst)) { + if (IS_ERR(hdev->rst)) { + if (PTR_ERR(hdev->rst) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto err_reset; + } + } else { reset_control_assert(hdev->rst); udelay(2); reset_control_deassert(hdev->rst); @@ -1535,7 +1540,7 @@ static int stm32_hash_probe(struct platform_device *pdev) if (hdev->dma_lch) dma_release_channel(hdev->dma_lch); - +err_reset: pm_runtime_disable(dev); pm_runtime_put_noidle(dev); From patchwork Mon Apr 27 06:42:25 2020 Content-Type: text/plain; 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Mon, 27 Apr 2020 08:42:58 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 6E980100039; Mon, 27 Apr 2020 08:42:57 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag7node2.st.com [10.75.127.20]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 5F18521F67B; Mon, 27 Apr 2020 08:42:57 +0200 (CEST) Received: from localhost (10.75.127.45) by SFHDAG7NODE2.st.com (10.75.127.20) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 27 Apr 2020 08:42:56 +0200 From: Lionel Debieve To: Herbert Xu , "David S . Miller" , Maxime Coquelin , Alexandre Torgue , Subject: [PATCH 2/3] crypto: stm32/hash - defer probe for dma device Date: Mon, 27 Apr 2020 08:42:25 +0200 Message-ID: <20200427064226.6991-3-lionel.debieve@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200427064226.6991-1-lionel.debieve@st.com> References: <20200427064226.6991-1-lionel.debieve@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG7NODE3.st.com (10.75.127.21) To SFHDAG7NODE2.st.com (10.75.127.20) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-27_03:2020-04-24, 2020-04-27 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200426_234314_974854_7BF677E5 X-CRM114-Status: GOOD ( 15.22 ) X-Spam-Score: -0.9 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [91.207.212.93 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Etienne Carriere Change stm32 HASH driver to defer its probe operation when DMA channel device is registered but has not been probed yet. Signed-off-by: Etienne Carriere Reviewed-by: Lionel DEBIEVE --- drivers/crypto/stm32/stm32-hash.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index fad6190be088..0d592f55a271 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -507,6 +507,7 @@ static int stm32_hash_hmac_dma_send(struct stm32_hash_dev *hdev) static int stm32_hash_dma_init(struct stm32_hash_dev *hdev) { struct dma_slave_config dma_conf; + struct dma_chan *chan; int err; memset(&dma_conf, 0, sizeof(dma_conf)); @@ -518,11 +519,11 @@ static int stm32_hash_dma_init(struct stm32_hash_dev *hdev) dma_conf.dst_maxburst = hdev->dma_maxburst; dma_conf.device_fc = false; - hdev->dma_lch = dma_request_chan(hdev->dev, "in"); - if (IS_ERR(hdev->dma_lch)) { - dev_err(hdev->dev, "Couldn't acquire a slave DMA channel.\n"); - return PTR_ERR(hdev->dma_lch); - } + chan = dma_request_chan(hdev->dev, "in"); + if (IS_ERR(chan)) + return PTR_ERR(chan); + + hdev->dma_lch = chan; err = dmaengine_slave_config(hdev->dma_lch, &dma_conf); if (err) { @@ -1498,8 +1499,15 @@ static int stm32_hash_probe(struct platform_device *pdev) platform_set_drvdata(pdev, hdev); ret = stm32_hash_dma_init(hdev); - if (ret) + switch (ret) { + case 0: + break; + case -ENOENT: dev_dbg(dev, "DMA mode not available\n"); + break; + default: + goto err_dma; + } spin_lock(&stm32_hash.lock); list_add_tail(&hdev->list, &stm32_hash.dev_list); @@ -1537,7 +1545,7 @@ static int stm32_hash_probe(struct platform_device *pdev) spin_lock(&stm32_hash.lock); list_del(&hdev->list); spin_unlock(&stm32_hash.lock); - +err_dma: if (hdev->dma_lch) dma_release_channel(hdev->dma_lch); err_reset: From patchwork Mon Apr 27 06:42:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lionel Debieve X-Patchwork-Id: 11511231 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 16F0D912 for ; 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Mon, 27 Apr 2020 08:42:58 +0200 (CEST) Received: from localhost (10.75.127.46) by SFHDAG7NODE2.st.com (10.75.127.20) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 27 Apr 2020 08:42:58 +0200 From: Lionel Debieve To: Herbert Xu , "David S . Miller" , Maxime Coquelin , Alexandre Torgue , Subject: [PATCH 3/3] crypto: stm32/hash - don't print error on probe deferral Date: Mon, 27 Apr 2020 08:42:26 +0200 Message-ID: <20200427064226.6991-4-lionel.debieve@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200427064226.6991-1-lionel.debieve@st.com> References: <20200427064226.6991-1-lionel.debieve@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG3NODE1.st.com (10.75.127.7) To SFHDAG7NODE2.st.com (10.75.127.20) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-27_03:2020-04-24, 2020-04-27 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200426_234314_976599_86E45ECD X-CRM114-Status: GOOD ( 15.81 ) X-Spam-Score: -0.9 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [91.207.212.93 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Change driver to not print an error message when the device probe is deferred for a clock resource. Signed-off-by: Lionel Debieve --- drivers/crypto/stm32/stm32-hash.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index 0d592f55a271..03c5e6683805 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -1464,8 +1464,11 @@ static int stm32_hash_probe(struct platform_device *pdev) hdev->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(hdev->clk)) { - dev_err(dev, "failed to get clock for hash (%lu)\n", - PTR_ERR(hdev->clk)); + if (PTR_ERR(hdev->clk) != -EPROBE_DEFER) { + dev_err(dev, "failed to get clock for hash (%lu)\n", + PTR_ERR(hdev->clk)); + } + return PTR_ERR(hdev->clk); }