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 AA2F1C4332F for ; Thu, 9 Dec 2021 10:49:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235854AbhLIKxP (ORCPT ); Thu, 9 Dec 2021 05:53:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234661AbhLIKxO (ORCPT ); Thu, 9 Dec 2021 05:53:14 -0500 Received: from mail-ed1-x530.google.com (mail-ed1-x530.google.com [IPv6:2a00:1450:4864:20::530]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 34C03C061746; Thu, 9 Dec 2021 02:49:41 -0800 (PST) Received: by mail-ed1-x530.google.com with SMTP id x15so18305115edv.1; Thu, 09 Dec 2021 02:49:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Rn5yiHEVIcPf8apFH8WOG/o386JPX61QJAV5CIBGr5o=; b=SceT5lGxXiYZEVyNTiTvxpynV6odUf/rM3ek99juOQusZAe0MnwqtotI/GjRMXc8WC t/K94bZZr9Kf2T1NkpDkI0mq+u9cAGAQ0skR7sY0DWu6JMTDxFaUFRx3YgyRNSiWSB1t D0Fg+JS354vAwJjvr5WPxEDduxeOxsA8vgUosDeahAhRmWEvfLywmn4Wonf2ic8RZ865 0HTBy6meUvnwB4r2ZJHAcaqhvpezaGhk1UGVBFOyPGcERDplhk+2Mllr6DoqYKN79H+1 yWFi3JLEA9RRXUDwEu3ZmaDsIlToImzSzYtXp+iQ1/W6XZOoIVnaP/PP7SdK8ywoYpxG Vzew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Rn5yiHEVIcPf8apFH8WOG/o386JPX61QJAV5CIBGr5o=; b=iG0e0WOqOK/44Ga/TGHSYCTlctNeuwTZ6gwDk4JhW/EHaEOe1emHsmkQssgPTYScvm AZbmedcP2E+tjxODPDMmKofed/f21JhJDxYT8hYZc9UrP3L4QALbRiDlAs0HbQBAz5oQ xax/XxfJdxsVK2uQP5kMhO4CxulDMj8Nrbf0VIqofPACyRBes8R62GpsUFtccbbmmcTP BBktRUHQLEyu/jAkYOJdqwsu72Q2kgEuBctMTBVWh+OuWdVQjalOl/X7xyKB/EeqUlLH JMBREzB4oXpGCw+umXfJolE6Uw6FOWgw1yyESZ8Ypl8qUDjD8ESyqzV5CPGd6W5Zqxdw 66Kw== X-Gm-Message-State: AOAM530URH+2F8xe611q/muhM7Ke5BpNtz/ITONWY/v8mXKcM4X2in1H gxBaAEugXd1sqhWNB0ciu9I4vFiQMdUzshoF86Q= X-Google-Smtp-Source: ABdhPJxlRS6j6rkvUOvm4x+7k8ZlYSH6E7d9IqpkhN2VYrbnf2Ir6tr8DLFWXU0HKJiIwY9yqWcQeXDz5qcn4YRzYaQ= X-Received: by 2002:a17:906:ecac:: with SMTP id qh12mr14231892ejb.377.1639046979775; Thu, 09 Dec 2021 02:49:39 -0800 (PST) MIME-Version: 1.0 References: <20211124073419.181799-1-marcan@marcan.st> <20211124074625.182815-11-marcan@marcan.st> <78ce61a9-b345-437a-df02-49951eb3f31e@canonical.com> In-Reply-To: <78ce61a9-b345-437a-df02-49951eb3f31e@canonical.com> From: Andy Shevchenko Date: Thu, 9 Dec 2021 12:48:06 +0200 Message-ID: Subject: Re: [PATCH v3 10/11] tty: serial: samsung_tty: Support runtime PM To: Krzysztof Kozlowski Cc: Hector Martin , linux-arm Mailing List , Marc Zyngier , Rob Herring , Arnd Bergmann , Linus Walleij , Alyssa Rosenzweig , Greg Kroah-Hartman , Mark Kettenis , Philipp Zabel , "Rafael J. Wysocki" , Johan Hovold , devicetree , Linux PM , Linux Kernel Mailing List , Linux Samsung SOC , "open list:SERIAL DRIVERS" Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 7, 2021 at 4:39 PM Krzysztof Kozlowski wrote: > On 24/11/2021 08:46, Hector Martin wrote: > > This allows idle UART devices to be suspended using the standard > > runtime-PM framework. The logic is modeled after stm32-usart. Guys, have you seen this activity: https://lore.kernel.org/linux-serial/YbGyNW2EQlA%2F+VIg@atomide.com/T/#t? The idea eventually is to bring the serial core to do this for us. Can you test that series and see if it has a use in your case? -- With Best Regards, Andy Shevchenko