From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6C810C83003 for ; Wed, 29 Apr 2020 13:38:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 378D920B80 for ; Wed, 29 Apr 2020 13:38:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="hnHXCWVl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727062AbgD2NiO (ORCPT ); Wed, 29 Apr 2020 09:38:14 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:11894 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727053AbgD2NiO (ORCPT ); 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Wed, 29 Apr 2020 15:38:01 +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 B632010002A; Wed, 29 Apr 2020 15:38:00 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node1.st.com [10.75.127.7]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id A153921F687; Wed, 29 Apr 2020 15:38:00 +0200 (CEST) Received: from lmecxl0889.tpe.st.com (10.75.127.45) by SFHDAG3NODE1.st.com (10.75.127.7) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 29 Apr 2020 15:37:59 +0200 Subject: Re: [PATCH v2 03/12] remoteproc: stm32: Decouple rproc from DT parsing To: Mathieu Poirier , , , , CC: , , , , References: <20200424202505.29562-1-mathieu.poirier@linaro.org> <20200424202505.29562-4-mathieu.poirier@linaro.org> From: Arnaud POULIQUEN Message-ID: Date: Wed, 29 Apr 2020 15:37:58 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200424202505.29562-4-mathieu.poirier@linaro.org> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG7NODE1.st.com (10.75.127.19) To SFHDAG3NODE1.st.com (10.75.127.7) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.676 definitions=2020-04-29_05:2020-04-29,2020-04-29 signatures=0 Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Hi Mathieu, On 4/24/20 10:24 PM, Mathieu Poirier wrote: > Remove the remote processor from the process of parsing the device tree > since (1) there is no correlation between them and (2) to use the > information that was gathered to make a decision on whether to > synchronise with the M4 or not. > > Signed-off-by: Mathieu Poirier > --- > drivers/remoteproc/stm32_rproc.c | 25 ++++++++++++++----------- > 1 file changed, 14 insertions(+), 11 deletions(-) > > diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c > index 1ac90adba9b1..57a426ea620b 100644 > --- a/drivers/remoteproc/stm32_rproc.c > +++ b/drivers/remoteproc/stm32_rproc.c > @@ -538,12 +538,11 @@ static int stm32_rproc_get_syscon(struct device_node *np, const char *prop, > return err; > } > > -static int stm32_rproc_parse_dt(struct platform_device *pdev) > +static int stm32_rproc_parse_dt(struct platform_device *pdev, > + struct stm32_rproc *ddata, bool *auto_boot) > { > struct device *dev = &pdev->dev; > struct device_node *np = dev->of_node; > - struct rproc *rproc = platform_get_drvdata(pdev); > - struct stm32_rproc *ddata = rproc->priv; > struct stm32_syscon tz; > unsigned int tzen; > int err, irq; > @@ -589,7 +588,7 @@ static int stm32_rproc_parse_dt(struct platform_device *pdev) > > err = regmap_read(tz.map, tz.reg, &tzen); > if (err) { > - dev_err(&rproc->dev, "failed to read tzen\n"); > + dev_err(dev, "failed to read tzen\n"); > return err; > } > ddata->secured_soc = tzen & tz.mask; > @@ -605,7 +604,7 @@ static int stm32_rproc_parse_dt(struct platform_device *pdev) > if (err) > dev_info(dev, "failed to get pdds\n"); > > - rproc->auto_boot = of_property_read_bool(np, "st,auto-boot"); > + *auto_boot = of_property_read_bool(np, "st,auto-boot"); > > return stm32_rproc_of_memory_translations(pdev, ddata); > } > @@ -616,6 +615,7 @@ static int stm32_rproc_probe(struct platform_device *pdev) > struct stm32_rproc *ddata; > struct device_node *np = dev->of_node; > struct rproc *rproc; > + bool auto_boot = false; Nitpicking: Seems that you don't need to initialize it. Perhaps you can simply suppress the local variable and directly use rproc->auto_boot. else LGTM Thanks, Arnaud > int ret; > > ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32)); > @@ -626,9 +626,16 @@ static int stm32_rproc_probe(struct platform_device *pdev) > if (!rproc) > return -ENOMEM; > > + ddata = rproc->priv; > + > rproc_coredump_set_elf_info(rproc, ELFCLASS32, EM_NONE); > + > + ret = stm32_rproc_parse_dt(pdev, ddata, &auto_boot); > + if (ret) > + goto free_rproc; > + > + rproc->auto_boot = auto_boot; > rproc->has_iommu = false; > - ddata = rproc->priv; > ddata->workqueue = create_workqueue(dev_name(dev)); > if (!ddata->workqueue) { > dev_err(dev, "cannot create workqueue\n"); > @@ -638,13 +645,9 @@ static int stm32_rproc_probe(struct platform_device *pdev) > > platform_set_drvdata(pdev, rproc); > > - ret = stm32_rproc_parse_dt(pdev); > - if (ret) > - goto free_wkq; > - > ret = stm32_rproc_request_mbox(rproc); > if (ret) > - goto free_rproc; > + goto free_wkq; > > ret = rproc_add(rproc); > if (ret) >