From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f47.google.com (mail-pj1-f47.google.com [209.85.216.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 24BFD262FDC for ; Mon, 9 Mar 2026 14:26:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.47 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773066368; cv=none; b=fyhpeBuHfbC+QptVCkPFeyYnBsDgtSXTHImUSjYSxyPE5aNf4MqBTGv3C8JnhHT7UplzHjsAzfKK2i7dTQK8V4Fw4TM5JKfbvOSH/CzFDGD4zTINcUXNJUUT8T/uGKf6GlvCZrf4UQhJSnLmhyD/OWqTFmwiVaS4PvWNqJktnVM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773066368; c=relaxed/simple; bh=0GzH/WbkPxuwUlkTNUh22Q69q46ZpYbEGhCSmH4mU2Y=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=bXNoEcLYqOG8kuzSqM25eLUyFgKs5tb8UO65EqrgHFACESv6vOGEzKcVh64Yqi8tES3uqwI44geWV6Ya1970PbZ9J/CUAlN4GbfSVulet0I94fffcRE2s3Mc+/Eu8IZc0FQ5NJFVux25HZf7WemY4XBlIMo95YpY5uKbB03gJg4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=LdXCEi29; arc=none smtp.client-ip=209.85.216.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="LdXCEi29" Received: by mail-pj1-f47.google.com with SMTP id 98e67ed59e1d1-35983877dc5so3742082a91.2 for ; Mon, 09 Mar 2026 07:26:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1773066366; x=1773671166; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=fBrm9MTDNHeQZv4wJ0CXspPHqOyz2SoB+5IA+qzdZls=; b=LdXCEi29nj/zxzt9jH3uU16Svz33wDY1upwuF7Ah4oJCH79vByAIyc/mvzFZEMeNgl CKEscjbDgMAl/KHpC+yj8rj/oZH5U3i0kuolgd24TajHsWX3xzlawzWZFUU2/iysFabZ jVouzVUcz8MDt/C498/Wn9/Gh3RQN+QvWdVy8HPrkZb2NU0GXjlqXZrrkdwNghpWMnd2 LyIyGZ8bRrfHws+VyBUzFRxhQ9NvxYsRrm+s0debhU4m2Mp/ZnlKF0rQGtdM3quaITMg yYHFvfvCAS5VgRSp2AxeewfS/Yt8FIbB15NmGvJYy6Mlj1QI3+n95XXkkZ3KC+c238Kb GW2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773066366; x=1773671166; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=fBrm9MTDNHeQZv4wJ0CXspPHqOyz2SoB+5IA+qzdZls=; b=Y8qyMcadMJVmLCVdcpfM2fnsrywPP2WG3+b2KqMwxaWVeY7oZlHm0gIQeYU/Dgre1p z23gUDv6uciVGmtmYj/wMRD7exx3Bofsss01Z0QkiBMRhGC8kEjNSiZqJhQRb6ZkM4GP R8RwJIOv3TxH3ACrPE6tfPCatlnQTCqIwmFq3/Lp6gV6ysDlQgeu3qogMtgihCGeYlI8 CTk4myq4pjyijZXTu++4tD4VPZV1lR9CRbcpysrag76OzbRleUiL76ilhQGNj5IRuIj8 HxDlHOn6tK0mxt5kXClJajVoFd1DPTNZUD6ef8V885+PhqISqtIJbaXQM8WeibVNcT01 HrmQ== X-Forwarded-Encrypted: i=1; AJvYcCXIcQihmyV04CVuc20w53GXkQPgTmrvQXbNBLNDdi4yHrz3Txgt9eWDEQr7eLlcDcCgVaMGKw28L4SNmGM=@vger.kernel.org X-Gm-Message-State: AOJu0YwgfhGVyWdiaLuQRzJV/Tk8kQmigLIPu2kJftohvRs91qs9mfbt r2D/lmjCkhNgllypCoeycuDkP3maXZwEba1aDtLDv5a9P+EB5HMnFTqnRvQXKxC5e8kz8Op3HTg mBhsSaiY= X-Gm-Gg: ATEYQzz37wWurA0c43dJeA5Tce4R4+hnkpq5zKPcBa8nOmdxvvAlmXgax6EXLNNqGlr APRG4v+ux9c3U7fbTlpCxV3LCqC+Ty9vkGiNsRBb1D7w7t4HCP85n6V1RL+z/0S99zTAoEvzvQi j9yc/bloRZjyLjBOQk67LhLMcGp0mSOFd98J3/+hU7BZxhkFrVvdiIC2omcTDmKaS+0ejW2RLIr aZt3XnbLHA2kjCnou35qFBf95TJLucah+Bd/cPqvX5XhCcv6LEhNaeY2t4Ro6/mslwcFcPJsUS8 W7CrYCWGEOwYIlXqGZHEo6zWEYGEjnG3o1IddMwtibj0K9nnHAKws+HC8nftHWvfyCbS4vYgZby rH6XB/UEBjKT3nkDJmz4G6OyXYWtxxlBWHNh0dFals6RBUwm4RzaJE+RN3z2rWEi95wM6e2dIHq 7E5PYqkUSy1jiuPL1WWrjZh1OQlQE= X-Received: by 2002:a17:90b:2496:b0:359:8564:dc0e with SMTP id 98e67ed59e1d1-359be21aab6mr5402377a91.3.1773066366110; Mon, 09 Mar 2026 07:26:06 -0700 (PDT) Received: from p14s ([2604:3d09:148c:c800:9504:de97:a114:6f18]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-359bbcacf06sm4290839a91.4.2026.03.09.07.26.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Mar 2026 07:26:05 -0700 (PDT) Date: Mon, 9 Mar 2026 08:26:03 -0600 From: Mathieu Poirier To: Andrew Davis Cc: Bjorn Andersson , linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] remoteproc: keystone: Request IRQs in probe() Message-ID: References: <20260302201734.320747-1-afd@ti.com> <5d2936a4-9124-4910-93ed-c898d6facdb1@ti.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5d2936a4-9124-4910-93ed-c898d6facdb1@ti.com> On Fri, Mar 06, 2026 at 11:29:09AM -0600, Andrew Davis wrote: > On 3/6/26 11:19 AM, Mathieu Poirier wrote: > > Good day, > > > > On Mon, Mar 02, 2026 at 02:17:34PM -0600, Andrew Davis wrote: > > > IRQs can be registered in probe and only need to be enabled/disabled > > > during remoteproc start/stop. This lets us catch IRQ issues early > > > and simplify remoteproc start/stop. > > > > > > Signed-off-by: Andrew Davis > > > --- > > > drivers/remoteproc/keystone_remoteproc.c | 41 +++++++++--------------- > > > 1 file changed, 15 insertions(+), 26 deletions(-) > > > > > > diff --git a/drivers/remoteproc/keystone_remoteproc.c b/drivers/remoteproc/keystone_remoteproc.c > > > index 4d6550b485675..e7fde55097866 100644 > > > --- a/drivers/remoteproc/keystone_remoteproc.c > > > +++ b/drivers/remoteproc/keystone_remoteproc.c > > > @@ -173,35 +173,16 @@ static int keystone_rproc_start(struct rproc *rproc) > > > INIT_WORK(&ksproc->workqueue, handle_event); > > > - ret = request_irq(ksproc->irq_ring, keystone_rproc_vring_interrupt, 0, > > > - dev_name(ksproc->dev), ksproc); > > > - if (ret) { > > > - dev_err(ksproc->dev, "failed to enable vring interrupt, ret = %d\n", > > > - ret); > > > - goto out; > > > - } > > > + enable_irq(ksproc->irq_ring); > > > + enable_irq(ksproc->irq_fault); > > > - ret = request_irq(ksproc->irq_fault, keystone_rproc_exception_interrupt, > > > - 0, dev_name(ksproc->dev), ksproc); > > > + ret = keystone_rproc_dsp_boot(ksproc, rproc->bootaddr); > > > if (ret) { > > > - dev_err(ksproc->dev, "failed to enable exception interrupt, ret = %d\n", > > > - ret); > > > - goto free_vring_irq; > > > + flush_work(&ksproc->workqueue); > > > + return ret; > > > } > > > - ret = keystone_rproc_dsp_boot(ksproc, rproc->bootaddr); > > > - if (ret) > > > - goto free_exc_irq; > > > - > > > return 0; > > > - > > > -free_exc_irq: > > > - free_irq(ksproc->irq_fault, ksproc); > > > -free_vring_irq: > > > - free_irq(ksproc->irq_ring, ksproc); > > > - flush_work(&ksproc->workqueue); > > > -out: > > > - return ret; > > > } > > > /* > > > @@ -215,8 +196,8 @@ static int keystone_rproc_stop(struct rproc *rproc) > > > struct keystone_rproc *ksproc = rproc->priv; > > > keystone_rproc_dsp_reset(ksproc); > > > - free_irq(ksproc->irq_fault, ksproc); > > > - free_irq(ksproc->irq_ring, ksproc); > > > + disable_irq(ksproc->irq_fault); > > > + disable_irq(ksproc->irq_ring); > > > flush_work(&ksproc->workqueue); > > > return 0; > > > @@ -427,10 +408,18 @@ static int keystone_rproc_probe(struct platform_device *pdev) > > > ksproc->irq_ring = platform_get_irq_byname(pdev, "vring"); > > > if (ksproc->irq_ring < 0) > > > return ksproc->irq_ring; > > > + ret = devm_request_irq(dev, ksproc->irq_ring, keystone_rproc_vring_interrupt, > > > + IRQF_NO_AUTOEN, dev_name(dev), ksproc); > > > + if (ret) > > > + return dev_err_probe(dev, ret, "failed to request vring interrupt\n"); > > > ksproc->irq_fault = platform_get_irq_byname(pdev, "exception"); > > > if (ksproc->irq_fault < 0) > > > return ksproc->irq_fault; > > > + ret = devm_request_irq(dev, ksproc->irq_fault, keystone_rproc_exception_interrupt, > > > + IRQF_NO_AUTOEN, dev_name(dev), ksproc); > > > > request_irq() sets irqflags IRQF_COND_ONESHOT, something that is not done here. > > Are you sure this is what you want? > > > > devm_request_irq() looks to also set IRQF_COND_ONESHOT matching request_irq(). > You are correct - I have applied this patch. > Not sure it would matter anyway as these IRQs are not shared, behavior would > be unchanged. > > Andrew > > > Thanks, > > Mathieu > > > > > + if (ret) > > > + return dev_err_probe(dev, ret, "failed to enable exception interrupt\n"); > > > ksproc->kick_gpio = devm_gpiod_get(dev, "kick", GPIOD_ASIS); > > > ret = PTR_ERR_OR_ZERO(ksproc->kick_gpio); > > > -- > > > 2.39.2 > > > >