From patchwork Mon Jun 1 17:55:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mathieu Poirier X-Patchwork-Id: 11582477 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 9F37A913 for ; Mon, 1 Jun 2020 17:58:58 +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 7C8752076B for ; Mon, 1 Jun 2020 17:58:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="TEFpGyVp"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="jDpwCbFH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7C8752076B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org 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=fcrfFMxHtZRfzn87dDu/FQYc8eQU779ymHPmSAXEZn0=; b=TEFpGyVp1Z9RQa drKcBHxSGJsRd6S7UXkra8gJl/B/aJF7gRHkOuqfIkaTszzt6BJsObPUMOhc4hYC3FWB6iUSWu2aV KEOQaVBA92fJIg7dieEJBo7DtFiBFE77UysIS9jzK9idRViIgpnuh2lOMkyUyQowCODLZZvKILCOP Y6t6aXtftelDxR56CGxxX1A5MlGbmrixVr3KZMVi8cgCWsCh1zwkuPH1qJ4uivEs4I0JUcX9D31pm fKZTlAdVllhm375HvHw8XXmN50jdY/8YwPkMWS2f/haiAM4/BE0AKF3Okn+m4L7HEaEsHXsU3wLRq zzqbxC1jNb4IrBg44iwA==; 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 1jfoi2-0007Os-DE; Mon, 01 Jun 2020 17:58:50 +0000 Received: from mail-pl1-x644.google.com ([2607:f8b0:4864:20::644]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jfofS-0004fO-6M for linux-arm-kernel@lists.infradead.org; Mon, 01 Jun 2020 17:56:12 +0000 Received: by mail-pl1-x644.google.com with SMTP id m7so255752plt.5 for ; Mon, 01 Jun 2020 10:56:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=u4RFNd9FFVlTeJLx02SSeMMgnm0C5Ocm0tA+r0cHo1Y=; b=jDpwCbFHHHOdFSOjq6a7d0+Jeda1zij/0s2YyarOhbL1q9jo+DgjNl/BLDo6Qai070 2WLbe7LDYhcsR6Al9tIXcUq1hjSNSkJ5b37HvFu9BL8DAe3zZ4z6jWGtsBOh2laDL+VM IgVYA3Iv8FKeM1mbOVzl5grl6P2IqcPgjEioI8VvPUiDEJQ+s5y90Ie9Llm9B/aJnsaU 1hJvyLWdtmO4dmDCoEE3OeIZsDrXfT+6CtGYWf0Ggvlf2vTy+KrKvrZ8VY1hoTFyQSkm rHd7p4AW41iHcMeRgg5GQN+kpaRrhnsrW+1K29gPT5lgGZ3DvVXMWW5RjsknN+xU8GPN uZNQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=u4RFNd9FFVlTeJLx02SSeMMgnm0C5Ocm0tA+r0cHo1Y=; b=HHhsONQ7KL+3f8l149nXRBA0K4weOP5L2vL8a2x13Cu6iLoyRtAAqc3pe90n+aiAve JtaEeIfuOSeq2oKGOuqd0A5rQZxZgINQrW9ak86wb6Y4llSYsFWim4ucBUuOQQKaGvaW Lv2AsX2XWEWrlSLNghhzcfEeTZ+dIyUQ86XGjtIeLgZukox0IdnVR965eN3RZ5KOMH8I m01AHYq5+nbd+9gRE+Uv7/nUE1iYz7zAYqSEQYehau4LyzIdU1/+xzv62xEF4z6IYwOi RdwdaBAvc6bWLGYDsFMCh86AVNnRN0xMogUHxZmZNzL209v1FPE/5wOgsJg4FV0ZcxDh qrGA== X-Gm-Message-State: AOAM533PcoHmPPB3AvgoVrkGSdwHGap/kJCGZIkdiMysda0n/efALMho xPj0MuhUxBFkInRQ+ecqdgvBIw== X-Google-Smtp-Source: ABdhPJyPL4cWZZg61WZPJde8LyrsdhiEW14iaC+dVSSpI6qDWDL94WZSK2PfRnxce1jBtWI4z5ay6w== X-Received: by 2002:a17:902:8d83:: with SMTP id v3mr4455323plo.27.1591034168449; Mon, 01 Jun 2020 10:56:08 -0700 (PDT) Received: from xps15.cg.shawcable.net (S0106002369de4dac.cg.shawcable.net. [68.147.8.254]) by smtp.gmail.com with ESMTPSA id p7sm64771pfq.184.2020.06.01.10.56.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Jun 2020 10:56:08 -0700 (PDT) From: Mathieu Poirier To: bjorn.andersson@linaro.org, ohad@wizery.com, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com Subject: [PATCH v4 11/11] remoteproc: stm32: Update M4 state in stm32_rproc_stop() Date: Mon, 1 Jun 2020 11:55:52 -0600 Message-Id: <20200601175552.22286-12-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200601175552.22286-1-mathieu.poirier@linaro.org> References: <20200601175552.22286-1-mathieu.poirier@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200601_105610_305144_3F728861 X-CRM114-Status: GOOD ( 10.76 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:644 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -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 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: loic.pallardy@st.com, arnaud.pouliquen@st.com, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Update the co-processor state in function stm32_rproc_stop() so that it can be used in scenarios where the remoteproc core is attaching to the M4. Mainly based on the work published by Arnaud Pouliquen [1]. [1]. https://patchwork.kernel.org/project/linux-remoteproc/list/?series=239877 Signed-off-by: Mathieu Poirier Reviewed-by: Arnaud Pouliquen --- drivers/remoteproc/stm32_rproc.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c index 77a20a638e0c..ad0307aaf3d5 100644 --- a/drivers/remoteproc/stm32_rproc.c +++ b/drivers/remoteproc/stm32_rproc.c @@ -503,6 +503,18 @@ static int stm32_rproc_stop(struct rproc *rproc) } } + /* update coprocessor state to OFF if available */ + if (ddata->m4_state.map) { + err = regmap_update_bits(ddata->m4_state.map, + ddata->m4_state.reg, + ddata->m4_state.mask, + M4_STATE_OFF); + if (err) { + dev_err(&rproc->dev, "failed to set copro state\n"); + return err; + } + } + return 0; }