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 985FFC19F2B for ; Sun, 31 Jul 2022 19:29:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237485AbiGaT3a (ORCPT ); Sun, 31 Jul 2022 15:29:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41414 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230074AbiGaT33 (ORCPT ); Sun, 31 Jul 2022 15:29:29 -0400 Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C1866AE5B; Sun, 31 Jul 2022 12:29:27 -0700 (PDT) Received: by mail-ed1-x52f.google.com with SMTP id p5so11306785edi.12; Sun, 31 Jul 2022 12:29:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc; bh=Lw53LGjMYk2wKLkpCkMzhMU/ERzJG+2KOxxgSH1zgdU=; b=gXJcNmTRLXg/V8KJAfyYmV8b/EUlRYeownvd/IMNCvFNgDUMdjWMQ47IKipedORKt3 KPm9oNNTQ72x7FrQlo3Sy02e3QYfZF1fEp9J121zyxI7wtvyjq7XqlEirBR1ny9GWGE7 N6R3ge4woduU2DwUjjyND3UO613tbNcj6EBzreM2yBLI66+yeXXbzkimbq6QgffMGyyI kEF923EcPSoY7BXCvUZNbKUe9V3zSwbJhj+pfu+O5C0VM+p81FE6ix4mwpeTtIa2ToGJ oCkzE19sWu6fIPKpO90qB0Ed54UWX7w4KkzS2le0nzOP8Ox6amRwEq8hkr8yqq9EI5su D2qA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc; bh=Lw53LGjMYk2wKLkpCkMzhMU/ERzJG+2KOxxgSH1zgdU=; b=JqD3P8dLZk7amgyeNhEEyxeHbdBdqy3MSu8njO0T8qKnmVk89dDJpAYCqPbeOrHF6h Btf43dqtDg41gGbVwKjTvExdIGyVEo+oGexKziAoAYx+7WkTCJrOL2qXQI3aTEHlDFma SVAIyzit2iPtKWJbHuP7rbfroQe5cRDaqn0JA+WIEn9BdnClPR4DgdynV194hspe9Pvt W+9Wjeb5vt2rBDs+fwY43yjyjIesYGxZgJy4A6t/FrN+gAkPmxMPt4SwOdkM1C5TiQ8g 72ZO27++ishOtWdpsVIQXWDLk/qKB8gm17E+Am7nWozHoL197B8YkNVgZGPSZF3PHjuL vjPA== X-Gm-Message-State: AJIora+0G9pf5/MLm7LKpLvQgO7LbIUfCMthHKsBIcb5g9LgCZ65AgVS ZMhQE7DpKCUycgl/BDYcZxJOSnfLTdICtacArC8= X-Google-Smtp-Source: AGRyM1siBEDUKXsqCVV9//5tCubg3Fw94xh7Rjz+bbW/JNpAinjTAn3FAq+ICWEuaWlDhIQtOz/jrTFJpc6CcbvxVWs= X-Received: by 2002:a05:6402:40c3:b0:43b:d65a:cbf7 with SMTP id z3-20020a05640240c300b0043bd65acbf7mr12887191edb.380.1659295766127; Sun, 31 Jul 2022 12:29:26 -0700 (PDT) MIME-Version: 1.0 References: <20220722081146.47262-1-jjhiblot@traphandler.com> <20220722081146.47262-3-jjhiblot@traphandler.com> In-Reply-To: <20220722081146.47262-3-jjhiblot@traphandler.com> From: Andy Shevchenko Date: Sun, 31 Jul 2022 21:28:49 +0200 Message-ID: Subject: Re: [RESEND PATCH v6 2/3] leds: Add driver for the TLC5925 LED controller To: Jean-Jacques Hiblot Cc: Pavel Machek , Rob Herring , Krzysztof Kozlowski , Linux LED Subsystem , devicetree , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 22, 2022 at 10:14 AM Jean-Jacques Hiblot wrote: > > The TLC5925 is a 16-channels constant-current LED sink driver. > It is controlled via SPI but doesn't offer a register-based interface. > Instead it contains a shift register and latches that convert the > serial input into a parallel output. > > Datasheet: https://www.ti.com/lit/ds/symlink/tlc5925.pdf > Signed-off-by: Jean-Jacques Hiblot > Reviewed-by: Andy Shevchenko Sorry for my slowpokeness, but I just realized that this driver may not be needed. What is the difference to existing gpio-74x164? -- With Best Regards, Andy Shevchenko