From patchwork Fri Oct 25 22:37:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Colberg X-Patchwork-Id: 13851904 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 556AD215C55; Fri, 25 Oct 2024 22:37:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729895863; cv=none; b=G8ggjS9ce3ZylsBhJ6ywBeZoAjHHOQ6A3u0tl0Nn5ZaB2oMWDe9PQUEaw45Nv1X/dwcnMpYWxR4Q6YtKnV2UjvEy6QBZPm+hbiZ7YVthIOq2DLIjhWDLb8zUDeWHrsykZGT9JLw3KbJ4cXToBtiEt+HLhLOWnvbk9tTOrcDHQ2U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729895863; c=relaxed/simple; bh=tp62J7XWQ63M0Wxps50kozrkGXN+M8YuJV3s90auLx8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CtrzsOTe+wJzRnkafkemgxbLA0Zz3VwdAbSOS9u9KBB0gw3D2kwKqJpINCI+jZXgyyHB6CdBV8ETO1tsCvav27ebnAPAr16Qktd3tAd79XvXDx1yJ1wZBuGM092DTEBOAwgjHuuq5ayvXSKsb/k83sUwJwd9X62aAIgQh4UXjkw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=OLAiIaiI; arc=none smtp.client-ip=192.198.163.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="OLAiIaiI" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1729895861; x=1761431861; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=tp62J7XWQ63M0Wxps50kozrkGXN+M8YuJV3s90auLx8=; b=OLAiIaiI1/ZHF+SunvnYzkijVXg3tppUUiufuQPoBpYgOSiGZoOoRmyL 2GywEIgkCbuLRhibKaHF5LOabTKrFhySj1M2sCjhID/zAx2uv9pfsVAFI NIWOx5uLdWBBoQISR6srThM2mhGDHTdkCDbJm0+yrpVoTzG05NSuNTgb9 7OzLswA0SDiPYKGo1hjaU2NeSHupt2mpAWAOUgMjjap7kS8Rcmz0DRE7h VqnhO/R0kX/wCtrbSpd5nWT7r5Ok8SOLqacn3H/rF1/NrcQNXlFOws1m8 NY/CHNtUDjvXWNle2fJeirCq1GO5XEJ1lOt3+bDdwvWcTFBTnOV/92iny A==; X-CSE-ConnectionGUID: UWnimcU4Rcm3lJxLGpTdcA== X-CSE-MsgGUID: MGtGjmZIQ6iNxsPio9hBDA== X-IronPort-AV: E=McAfee;i="6700,10204,11236"; a="29474642" X-IronPort-AV: E=Sophos;i="6.11,233,1725346800"; d="scan'208";a="29474642" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Oct 2024 15:37:37 -0700 X-CSE-ConnectionGUID: Tkk7BLINQ/6lULdP2czpLw== X-CSE-MsgGUID: VieHLxe3TWiiwUeYXmnTdg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,233,1725346800"; d="scan'208";a="85596149" Received: from sj-4150-psse-sw-opae-dev3.sj.altera.com ([10.244.138.109]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Oct 2024 15:37:37 -0700 From: Peter Colberg To: Wu Hao , Tom Rix , Moritz Fischer , Xu Yilun , linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Russ Weight , Marco Pagani , Matthew Gerlach , Basheer Ahmed Muddebihal , Peter Colberg Subject: [PATCH v4 06/19] fpga: dfl: factor out feature data creation from build_info_commit_dev() Date: Fri, 25 Oct 2024 18:37:01 -0400 Message-ID: <20241025223714.394533-7-peter.colberg@intel.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241025223714.394533-1-peter.colberg@intel.com> References: <20241025223714.394533-1-peter.colberg@intel.com> Precedence: bulk X-Mailing-List: linux-fpga@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add a separate function, binfo_create_feature_dev_data(), which allocates and populates the feature platform data, and call the function from build_info_commit_dev(), which registers the feature platform device. Signed-off-by: Peter Colberg Reviewed-by: Matthew Gerlach Reviewed-by: Basheer Ahmed Muddebihal --- Changes since v3: - Replace ERR_PTR(PTR_ERR(feature->ioaddr) with feature->ioaddr and remove unneeded local variable ret. - Add missing commas in description. Changes since v2: - New patch extracted from monolithic v1 patch. --- drivers/fpga/dfl.c | 72 +++++++++++++++++++++++++--------------------- 1 file changed, 40 insertions(+), 32 deletions(-) diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c index 4c79d433d216..56a32f5146a3 100644 --- a/drivers/fpga/dfl.c +++ b/drivers/fpga/dfl.c @@ -749,22 +749,18 @@ static void dfl_fpga_cdev_add_port_data(struct dfl_fpga_cdev *cdev, mutex_unlock(&cdev->lock); } -/* - * register current feature device, it is called when we need to switch to - * another feature parsing or we have parsed all features on given device - * feature list. - */ -static int build_info_commit_dev(struct build_feature_devs_info *binfo) +static struct dfl_feature_platform_data * +binfo_create_feature_dev_data(struct build_feature_devs_info *binfo) { struct platform_device *fdev = binfo->feature_dev; struct dfl_feature_platform_data *pdata; struct dfl_feature_info *finfo, *p; enum dfl_id_type type; - int ret, index = 0, res_idx = 0; + int index = 0, res_idx = 0; type = feature_dev_id_type(fdev); if (WARN_ON_ONCE(type >= DFL_ID_MAX)) - return -EINVAL; + return ERR_PTR(-EINVAL); /* * we do not need to care for the memory which is associated with @@ -774,7 +770,7 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo) */ pdata = kzalloc(struct_size(pdata, features, binfo->feature_num), GFP_KERNEL); if (!pdata) - return -ENOMEM; + return ERR_PTR(-ENOMEM); pdata->dev = fdev; pdata->num = binfo->feature_num; @@ -799,7 +795,7 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo) fdev->resource = kcalloc(binfo->feature_num, sizeof(*fdev->resource), GFP_KERNEL); if (!fdev->resource) - return -ENOMEM; + return ERR_PTR(-ENOMEM); /* fill features and resource information for feature dev */ list_for_each_entry_safe(finfo, p, &binfo->sub_features, node) { @@ -818,7 +814,7 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo) finfo->params, finfo->param_size, GFP_KERNEL); if (!feature->params) - return -ENOMEM; + return ERR_PTR(-ENOMEM); feature->param_size = finfo->param_size; } @@ -835,7 +831,7 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo) devm_ioremap_resource(binfo->dev, &finfo->mmio_res); if (IS_ERR(feature->ioaddr)) - return PTR_ERR(feature->ioaddr); + return feature->ioaddr; } else { feature->resource_index = res_idx; fdev->resource[res_idx++] = finfo->mmio_res; @@ -845,7 +841,7 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo) ctx = devm_kcalloc(binfo->dev, finfo->nr_irqs, sizeof(*ctx), GFP_KERNEL); if (!ctx) - return -ENOMEM; + return ERR_PTR(-ENOMEM); for (i = 0; i < finfo->nr_irqs; i++) ctx[i].irq = @@ -859,25 +855,7 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo) kfree(finfo); } - ret = platform_device_add(binfo->feature_dev); - if (!ret) { - if (type == PORT_ID) - dfl_fpga_cdev_add_port_data(binfo->cdev, - pdata); - else - binfo->cdev->fme_dev = - get_device(&binfo->feature_dev->dev); - /* - * reset it to avoid build_info_free() freeing their resource. - * - * The resource of successfully registered feature devices - * will be freed by platform_device_unregister(). See the - * comments in build_info_create_dev(). - */ - binfo->feature_dev = NULL; - } - - return ret; + return pdata; } static int @@ -912,6 +890,36 @@ build_info_create_dev(struct build_feature_devs_info *binfo, return 0; } +static int build_info_commit_dev(struct build_feature_devs_info *binfo) +{ + struct dfl_feature_platform_data *pdata; + int ret; + + pdata = binfo_create_feature_dev_data(binfo); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + + ret = platform_device_add(binfo->feature_dev); + if (ret) + return ret; + + if (feature_dev_id_type(binfo->feature_dev) == PORT_ID) + dfl_fpga_cdev_add_port_data(binfo->cdev, pdata); + else + binfo->cdev->fme_dev = get_device(&binfo->feature_dev->dev); + + /* + * reset it to avoid build_info_free() freeing their resource. + * + * The resource of successfully registered feature devices + * will be freed by platform_device_unregister(). See the + * comments in build_info_create_dev(). + */ + binfo->feature_dev = NULL; + + return 0; +} + static void build_info_free(struct build_feature_devs_info *binfo) { struct dfl_feature_info *finfo, *p;