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 X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7ED1BC4741F for ; Mon, 28 Sep 2020 12:54:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 499A122204 for ; Mon, 28 Sep 2020 12:54:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="f/uiZ9J2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726565AbgI1Myo (ORCPT ); Mon, 28 Sep 2020 08:54:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726424AbgI1Myo (ORCPT ); Mon, 28 Sep 2020 08:54:44 -0400 Received: from mail-wm1-x344.google.com (mail-wm1-x344.google.com [IPv6:2a00:1450:4864:20::344]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12DBEC061755; Mon, 28 Sep 2020 05:54:44 -0700 (PDT) Received: by mail-wm1-x344.google.com with SMTP id d4so983285wmd.5; Mon, 28 Sep 2020 05:54:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=rYxYmSPSlKHJNuyTnVmBf92AIgqLsIDS6+bNfIKzBOI=; b=f/uiZ9J2wDYbxzP4nCnLDSCb/JeCxxtL/tewdvYGpcaY1AhOz0TNDO2ya69nfewfbK 4QWnnDa4EIozAwsOnOwzAdX6rewBlqYp5HsdmuP+Yv2MZFix37LxfTnJJYkM/QGlUiwe jeTUiIJV/FJj+n6KNMy6t2xv/BACw9bzhcdtcyz7xHETTHOLX0kNjR31a46lM0pm95uB eca9KBxUHA+y/OJELpA0G+XxzcLzDAVuTSLtHf09UfzHYsXJvfgFIPDUgmmQn3czGVHa mKO2H87kwZyGXdDKxj+pTaxCV9+JXyK1l6gazdQP++Vb6mYqBPUsK9Bi1n5WfXdIFhPi 32MQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=rYxYmSPSlKHJNuyTnVmBf92AIgqLsIDS6+bNfIKzBOI=; b=FmsV1D7OPWSyYFSwkCLIJAC7ncPjKufz7mR5tZYiXZVvnRIXteDvADJirp9PioM8km UqL0KA8aJHThPbFrUpiFkmFALYtM7r4ewaAIvtcCfuao/ptUFfrWei9EaivpKDGBUTp5 mWSHDHjqhwxKXGrlgazn+KFzftrYCer3oZK1bbtInlWxvelmXsnsnfQYkbYWegdC4VPF kG7BugMNbHZv5S7zasibRnxFiC+RHrpangsfrNMCErJuBrO3kHn9zC2ZvRHBGBVODRcy xudmmypb6nHWU3Il5J312ypS3z2BUgsfY9SpBj9WEICfKGcy2DaHGnnO371W1X1seHhh S8XA== X-Gm-Message-State: AOAM531OzW1iR/C+acfTlb7TLvVZyChkUjSxr65bqJOs4t+86Jo3VaXr K1+QnSipp2ByE+P+bDRM3NoCXzbUkxA= X-Google-Smtp-Source: ABdhPJxPfYvwg2Qa2IcRtFo+t1RnFC+hG2dUggvFdJnTsza1RTXfZ4gcrYniucd8YeTTD2HP9vMFcg== X-Received: by 2002:a7b:ce89:: with SMTP id q9mr1481722wmj.65.1601297682561; Mon, 28 Sep 2020 05:54:42 -0700 (PDT) Received: from localhost ([217.111.27.204]) by smtp.gmail.com with ESMTPSA id z8sm1415537wrl.11.2020.09.28.05.54.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Sep 2020 05:54:41 -0700 (PDT) Date: Mon, 28 Sep 2020 14:54:38 +0200 From: Thierry Reding To: JC Kuo Cc: gregkh@linuxfoundation.org, robh@kernel.org, jonathanh@nvidia.com, kishon@ti.com, linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, nkristam@nvidia.com Subject: Re: [PATCH v3 00/15] Tegra XHCI controller ELPG support Message-ID: <20200928125438.GC3065790@ulmo> References: <20200909081041.3190157-1-jckuo@nvidia.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="96YOpH+ONegL0A3E" Content-Disposition: inline In-Reply-To: <20200909081041.3190157-1-jckuo@nvidia.com> User-Agent: Mutt/1.14.7 (2020-08-29) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org --96YOpH+ONegL0A3E Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 09, 2020 at 04:10:26PM +0800, JC Kuo wrote: > Tegra XHCI controler can be placed in ELPG (Engine Level PowerGated) > state for power saving when all of the connected USB devices are in > suspended state. This patch series includes clk, phy and pmc changes > that are required for properly place controller in ELPG and bring > controller out of ELPG. >=20 > JC Kuo (15): > clk: tegra: Add PLLE HW power sequencer control > clk: tegra: Don't enable PLLE HW sequencer at init Is it safe to apply this second patch before the others have applied? Since we now need to explicitly enable the HW sequencer, it won't be enabled before the corresponding patch does that. So applying patch 2 before the others sounds like it would break existing users of the HW sequencer. Thierry --96YOpH+ONegL0A3E Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl9x3Q4ACgkQ3SOs138+ s6G+Ug//R/fLvXqIt1mer+0OLbF1HvLSpph1Uzb1i9yiyzJaXGzgYzOpQByhqtr9 V4iplc1w03WbTKIxv1Rg+S7MHCz7Y5nPfz/5bceODM49/y48soHgYD1Se/c3d1HP 3ixAHNP4/uHlILzQdT10pN6xNvCiQOWqxxmCxZ0/WDMV8MvMZbcYcGBkduwa37tp RDxbCaL6o7hTuPi8IKAyqbYbMgneofhUmOju+ea3Hu1QGTT+B7wDbPwJ4/Jl4PEr iWZGbrdUUX6EQzkNX4U9fQ68Gzx69B6YRj9hv5gbC6l/31G3C1srtUcYJjKfP9gp jSCFDo6pTzQl6Itgf2h0OHgVviUtgw8REKrrrCw6I5kn/sWm5tEf2vLbufzlnuSw qdaA5BJgpGn+ASodbthVTHdfJCfGFe4Jk8n2O/0bn9NxHDAzBZ+eCGAcsotfQcwd o/d3Cdl0JME7bh3IDpU68Ngjqy6XgGivcdrot/lcRrUf9cAH9VNEOZLBvJ+u7GnO MH7BUQgOXqei/EZCiak7KwIhfFtpPH7iRlqbQSAu9HCx4sfw6BawmWUlBL4q6Wmm 7adpmRA+TJOaY0JD5YrwyRgmvV7/TLHIGi/mGqwZWUJpVgIMqmLYA5NJmpo0yz/I 2CC52aFd5iJnVYJvxmBbYfJpMKDDiyXf+ttnZKCHskVEt+JaI9M= =aVne -----END PGP SIGNATURE----- --96YOpH+ONegL0A3E--