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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0FB2AC4167B for ; Fri, 16 Dec 2022 14:58:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231220AbiLPO6P (ORCPT ); Fri, 16 Dec 2022 09:58:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33232 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229636AbiLPO6O (ORCPT ); Fri, 16 Dec 2022 09:58:14 -0500 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E772B5D6AB; Fri, 16 Dec 2022 06:58:12 -0800 (PST) X-IronPort-AV: E=McAfee;i="6500,9779,10563"; a="320868166" X-IronPort-AV: E=Sophos;i="5.96,249,1665471600"; d="scan'208";a="320868166" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Dec 2022 06:58:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10563"; a="718373108" X-IronPort-AV: E=Sophos;i="5.96,249,1665471600"; d="scan'208";a="718373108" Received: from smile.fi.intel.com ([10.237.72.54]) by fmsmga004.fm.intel.com with ESMTP; 16 Dec 2022 06:58:01 -0800 Received: from andy by smile.fi.intel.com with local (Exim 4.96) (envelope-from ) id 1p6C9u-00Atum-2m; Fri, 16 Dec 2022 16:57:58 +0200 Date: Fri, 16 Dec 2022 16:57:58 +0200 From: Andy Shevchenko To: Hans de Goede Cc: Mark Gross , Pavel Machek , Lee Jones , Linus Walleij , Daniel Scally , Laurent Pinchart , Mauro Carvalho Chehab , Sakari Ailus , platform-driver-x86@vger.kernel.org, linux-leds@vger.kernel.org, linux-gpio@vger.kernel.org, Kate Hsuan , Mark Pearson , Andy Yeh , Yao Hao , linux-media@vger.kernel.org Subject: Re: [PATCH v3 11/11] platform/x86: int3472/discrete: Get the polarity from the _DSM entry Message-ID: References: <20221216113013.126881-1-hdegoede@redhat.com> <20221216113013.126881-12-hdegoede@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org On Fri, Dec 16, 2022 at 04:57:02PM +0200, Andy Shevchenko wrote: > On Fri, Dec 16, 2022 at 12:30:13PM +0100, Hans de Goede wrote: > > + /* If bits 31-24 of the _DSM entry are all 0 then the signal is inverted */ > > > + active_value = obj->integer.value >> 24; > > + if (!active_value) > > Not sure why you need a temporary variable for this. Just use > GENMASK()/GENMASK_ULL()? > > if (obj->integer.value & GENMASK(31, 24)); Of course should be if (!(obj->integer.value & GENMASK(31, 24))) > In this case you even don't need to repeat bit numbers in the comment. > > > + polarity ^= GPIO_ACTIVE_LOW; -- With Best Regards, Andy Shevchenko