From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752416AbeC0Xku (ORCPT ); Tue, 27 Mar 2018 19:40:50 -0400 Received: from mail-qk0-f193.google.com ([209.85.220.193]:45909 "EHLO mail-qk0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751913AbeC0Xkt (ORCPT ); Tue, 27 Mar 2018 19:40:49 -0400 X-Google-Smtp-Source: AIpwx4/rxZH/eMPUIgE7GzFlKIG0gem1SnO8ZQfs+GnUh+LZTcI+7KIOxiQaHpoBV95QkAE6SjmjCA== From: Florian Fainelli To: linux-arm-kernel@lists.infradead.org Cc: Florian Fainelli , Markus Mayer , bcm-kernel-feedback-list@broadcom.com (maintainer:BROADCOM STB DPFE DRIVER), Brian Norris , Gregory Fong , linux-kernel@vger.kernel.org (open list) Subject: [PATCH] memory: brcmstb: dpfe: Remove need for dpfe_dev Date: Tue, 27 Mar 2018 16:40:38 -0700 Message-Id: <20180327234038.32241-1-f.fainelli@gmail.com> X-Mailer: git-send-email 2.14.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We can hook sysfs objects to the parent platform device that we are created from, no need to have a synthetic dpfe_dev just for that. This incidentally removes the need for having an index, since we are guaranteed to have an unique path in the sysfs hiearchy. Signed-off-by: Florian Fainelli --- drivers/memory/brcmstb_dpfe.c | 42 ++++++++++-------------------------------- 1 file changed, 10 insertions(+), 32 deletions(-) diff --git a/drivers/memory/brcmstb_dpfe.c b/drivers/memory/brcmstb_dpfe.c index 0a7bdbed3a6f..5f8d5aff6040 100644 --- a/drivers/memory/brcmstb_dpfe.c +++ b/drivers/memory/brcmstb_dpfe.c @@ -168,7 +168,6 @@ struct private_data { void __iomem *dmem; void __iomem *imem; struct device *dev; - unsigned int index; struct mutex lock; }; @@ -628,10 +627,8 @@ static int brcmstb_dpfe_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct private_data *priv; - struct device *dpfe_dev; struct init_data init; struct resource *res; - u32 index; int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -641,11 +638,6 @@ static int brcmstb_dpfe_probe(struct platform_device *pdev) mutex_init(&priv->lock); platform_set_drvdata(pdev, priv); - /* Cell index is optional; default to 0 if not present. */ - ret = of_property_read_u32(dev->of_node, "cell-index", &index); - if (ret) - index = 0; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dpfe-cpu"); priv->regs = devm_ioremap_resource(dev, res); if (IS_ERR(priv->regs)) { @@ -669,35 +661,20 @@ static int brcmstb_dpfe_probe(struct platform_device *pdev) ret = brcmstb_dpfe_download_firmware(pdev, &init); if (ret) - goto err; - - dpfe_dev = devm_kzalloc(dev, sizeof(*dpfe_dev), GFP_KERNEL); - if (!dpfe_dev) { - ret = -ENOMEM; - goto err; - } - - priv->dev = dpfe_dev; - priv->index = index; + return ret; - dpfe_dev->parent = dev; - dpfe_dev->groups = dpfe_groups; - dpfe_dev->of_node = dev->of_node; - dev_set_drvdata(dpfe_dev, priv); - dev_set_name(dpfe_dev, "dpfe%u", index); + ret = sysfs_create_groups(&pdev->dev.kobj, dpfe_groups); + if (!ret) + dev_info(dev, "registered.\n"); - ret = device_register(dpfe_dev); - if (ret) - goto err; + return ret; +} - dev_info(dev, "registered.\n"); +static int brcmstb_dpfe_remove(struct platform_device *pdev) +{ + sysfs_remove_groups(&pdev->dev.kobj, dpfe_groups); return 0; - -err: - dev_err(dev, "failed to initialize -- error %d\n", ret); - - return ret; } static const struct of_device_id brcmstb_dpfe_of_match[] = { @@ -712,6 +689,7 @@ static struct platform_driver brcmstb_dpfe_driver = { .of_match_table = brcmstb_dpfe_of_match, }, .probe = brcmstb_dpfe_probe, + .remove = brcmstb_dpfe_remove, .resume = brcmstb_dpfe_resume, }; -- 2.14.1