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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7250DC433F5 for ; Thu, 30 Sep 2021 12:34:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 50697613CD for ; Thu, 30 Sep 2021 12:34:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350886AbhI3MgU (ORCPT ); Thu, 30 Sep 2021 08:36:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36380 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350366AbhI3MgU (ORCPT ); Thu, 30 Sep 2021 08:36:20 -0400 Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 65397C06176C for ; Thu, 30 Sep 2021 05:34:37 -0700 (PDT) Received: by mail-wr1-x434.google.com with SMTP id u18so9805323wrg.5 for ; Thu, 30 Sep 2021 05:34:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to; bh=HRgJEndOuR4ynn0OPA7sKb8RToaEd1xX8/0RUVPc1gs=; b=PRGDsSbneH4StUFwwnRbLwzVrVS8dXAQMsfx9rpM11hullUX4XhH0L8xtDo2A/JSkh vfBLbBJodUO8FPeQngR5h+hr4KzarQc3FnV7xoLaGEAqs4Mq3Nxqk8Tka17mIGHBR8Od esOL2mV/wXFcVwgwNwRbo3Q3ZQnzpznbdz36TaU/MQyMq8aXDMshuKrRT/qvB5Sm90Uq GVOsPer9/U8+t0an4EcH7UcvvfTO0BqQiwyNuympdIbRjiTOy6VmqkBA9QuR13uL6a8c 3cEBsixjLbEzKXW6P/6E1GmBNN1bveSx8Y12kRb7bitYdhJf98gFz7TxmEcyjy9XVeIp srug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=HRgJEndOuR4ynn0OPA7sKb8RToaEd1xX8/0RUVPc1gs=; b=NwGlHWSUZmIvBaytbPsUDgUNOOgC2l4AbpOR+v+E5gm6Ixqb+40phr6ZY4R3ySNsJu yaPCrkFEeYwnNiEF2E2F5xWmUH5ZWR3cK7Krgx9zamnOt2UPVlGCZSOnkQmGDJi/GOyP s5wSngZgA7JtG2Ecm2riGvomlkEHGpIEeng97tXVeoyJhWUPvYARvTqJ6iF6OgbXRfsM 92WFe9wRnc+DhAoxofz7bd4H2pwDAJbSVn6JtzcttXUpRjvPi97aj94DDCvJx9NkITT5 ZojldGgvOFl/ofvTOZBFik3eCXMPEZkWjTEuY+Y2CaLeZ98Sb6W0kC3TCv1fWQ4ASyKH +axw== X-Gm-Message-State: AOAM533W3imYsYErEER2EHEVLvnt1z54SrPo/utSVe7kZb5n9us5j8WY 4nuI7BmXUBoWM8lcl0Sn3HMh/A== X-Google-Smtp-Source: ABdhPJzruR/5Ef2zjhhdSPBNA0SVjA7uVPC3/lwtP8K1MW5Z2+vlJQr3w2Z7LogtLW9jhnrPbK8iNw== X-Received: by 2002:a5d:66d0:: with SMTP id k16mr5973546wrw.98.1633005275981; Thu, 30 Sep 2021 05:34:35 -0700 (PDT) Received: from google.com ([95.148.6.233]) by smtp.gmail.com with ESMTPSA id u5sm3175142wrg.57.2021.09.30.05.34.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Sep 2021 05:34:35 -0700 (PDT) Date: Thu, 30 Sep 2021 13:34:33 +0100 From: Lee Jones To: Krzysztof Kozlowski Cc: Arnd Bergmann , Will McVicker , Russell King , Catalin Marinas , Will Deacon , Michael Turquette , Stephen Boyd , Sylwester Nawrocki , Tomasz Figa , Chanwoo Choi , Linus Walleij , Alessandro Zummo , Alexandre Belloni , John Stultz , Thomas Gleixner , Geert Uytterhoeven , Saravana Kannan , "Cc: Android Kernel" , Linux ARM , Linux Kernel Mailing List , linux-samsung-soc , linux-clk , "open list:GPIO SUBSYSTEM" , linux-rtc@vger.kernel.org, Olof Johansson Subject: Re: [PATCH v2 00/12] arm64: Kconfig: Update ARCH_EXYNOS select configs Message-ID: References: <20210928235635.1348330-1-willmcvicker@google.com> <7766faf8-2dd1-6525-3b9a-8ba790c29cff@canonical.com> <8928290c-73d9-0843-25ed-2a4817ad32f7@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8928290c-73d9-0843-25ed-2a4817ad32f7@canonical.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org On Thu, 30 Sep 2021, Krzysztof Kozlowski wrote: > > It sounds like a lack of testing is your main concern. > > > > How can I help here? What H/W do I need to be able to fully test this? > > The changes here need to be tested on affected platforms (ARMv7 and > ARMv8), when built as a modules on some types of regular distros (e.g. > Arch, Ubuntu). From each of such boot I would be happy to see number of > new dmesg warnings/errors plus number of probe deferrals. > > Since the drivers could be switched to modules (and some distros might > do it), they might be hit by surprise regressions in boot performance > due to probe deferrals. This should be also checked on these platforms. > Geert pointed out before that clocks in many cases are not optional - > driver needs them and will wait defer. > > Assuming of course that boot succeeds. Minor differences in boot speed > should not be a problem, I think, because distro anyway chosen > all-module approach so it accepts the penalty. Do you have any suggestions in terms of devboards? -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog