From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 B04952E54B9; Wed, 9 Jul 2025 14:05:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752069919; cv=none; b=ENBfPZ6/Ls2ODITe16NOOOav0rA6kTkCy7TWEBhujTwnckI6mEgSqsemFHUu7/QfE0NvLporBiAXNYdiGDHMhYktLTxXtaTUfeETmCv4l6gDQ9ks2op4Dh0wdOvv997bVf/Mrcu1JhzjP6D94XwdWJFcDyXci2riamHlRxItsEo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752069919; c=relaxed/simple; bh=aNA261FsW4mkgtRraaqPkgn+WuUogqOB0mFX8ejRiyE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=uFsA0abB1UItFLqWaoczkJJA9flOQcJElnlAsBeZzzI4eFbdWCbq+qAx/Sy1LXp0egyLVHSuGDw51pc1cjqIgU0Yhoi20lEmZ8hAZgZXYazgF8NEqBoKhlnY7tob4jBfwm4AQlU+Yq2OgvScVGyUc3GOh4aUot+CTu61lwMVGLg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TtFYFduK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TtFYFduK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8CFB4C4CEEF; Wed, 9 Jul 2025 14:05:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752069918; bh=aNA261FsW4mkgtRraaqPkgn+WuUogqOB0mFX8ejRiyE=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=TtFYFduKBgXJyT/cMREPKtGBxZfEp4+Gudgg4rqLd4ko3xKxIUPKZfTJp5WwMvS9K Q77GGfecm+TEiYgBVxzOlGbikVV9n7dNF+rP/24vZSrqh3sNH/8dBb7/KCcgYSkx0k 29B5Lm/u67Lw5+RoK/PNJlh95/YyWu7+LW807u+KN0XRJKqFCeJLaENFmoi9VRp+rf BBM5CmamUY+KlYcKzuPH6mf7fWe2OyxhofLBNufN8yJKFQMGuBXeUZ3TkM0R8aPGab epq8MRGgnng9ewZhLZE8ltp5Qr3KCJroGQcGybqF8+YILoCj3rwiRxFkMpG8tHN0Ln FlniwUoJA8iMw== Message-ID: <23f655bf-aed6-4022-a7bf-3189bae834de@kernel.org> Date: Wed, 9 Jul 2025 16:05:11 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 4/6] drivers: perf: samsung: Add PPMU driver support To: Vivek Yadav , pankaj.dubey@samsung.com, ravi.patel@samsung.com, shradha.t@samsung.com, mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, will@kernel.org, mark.rutland@arm.com, s.nawrocki@samsung.com, cw00.choi@samsung.com, alim.akhtar@samsung.com, linux-fsd@tesla.com Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, linux-samsung-soc@vger.kernel.org References: <20250708103208.79444-1-vivek.2311@samsung.com> <20250708103208.79444-5-vivek.2311@samsung.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 08/07/2025 12:32, Vivek Yadav wrote: > +static struct platform_driver samsung_ppmu_driver = { > + .probe = samsung_ppmu_probe, > + .remove = samsung_ppmu_remove, > + .driver = { > + .name = "samsung-ppmu", > + .of_match_table = ppmu_of_match, > + }, > +}; > + > +module_platform_driver(samsung_ppmu_driver); > + > +MODULE_ALIAS("perf:samsung-ppmu"); No, drop. What's with these aliases from samsung... second try today. >From where do you get such code? > +MODULE_DESCRIPTION("Samsung Platform Performance Measuring Unit (PPMU) driver"); > +MODULE_AUTHOR("Vivek Yadav "); > +MODULE_AUTHOR("Ravi Patel "); > +MODULE_LICENSE("GPL"); > diff --git a/drivers/perf/samsung/ppmu_platform.c b/drivers/perf/samsung/ppmu_platform.c > new file mode 100644 > index 000000000000..ee11311d5a61 > --- /dev/null > +++ b/drivers/perf/samsung/ppmu_platform.c > @@ -0,0 +1,338 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * Samsung Platform Performance Measuring Unit (PPMU) core file > + * > + * Copyright (c) 2024-25 Samsung Electronics Co., Ltd. > + * > + * Authors: Vivek Yadav > + * Ravi Patel > + */ > + > +#include > +#include > +#include > +#include "samsung_ppmu.h" > + > +/* > + * PMU format attributes > + */ > +ssize_t samsung_ppmu_format_sysfs_show(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct dev_ext_attribute *eattr; > + > + eattr = container_of(attr, struct dev_ext_attribute, attr); > + > + return sysfs_emit(buf, "%s\n", (char *)eattr->var); > +} > +EXPORT_SYMBOL_GPL(samsung_ppmu_format_sysfs_show); 1. Where did you document ABI? 2. This is not used. You have one module, not two. Drop all exports. 3. You need to clearly explain what is wrong with existing drivers in a very detailed way, before you start posting another (possibly duplicated) drivers. Best regards, Krzysztof