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[94.29.35.107]) by smtp.googlemail.com with ESMTPSA id c18sm123252663pfc.0.2019.04.14.08.27.46 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 14 Apr 2019 08:27:51 -0700 (PDT) Subject: Re: [PATCH RE-SEND] clk: tegra: Don't enable already enabled PLLs From: Dmitry Osipenko To: Michael Turquette , Stephen Boyd Cc: Peter De Schrijver , Prashant Gaikwad , Thierry Reding , Jonathan Hunter , linux-clk@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org References: <20190224153222.8142-1-digetx@gmail.com> <20190304081857.GE21084@pdeschrijver-desktop.Nvidia.com> <9171e4f6-1ede-ab3a-caa6-83a2d9033650@gmail.com> Message-ID: <45e82026-3240-1c98-758b-d41fcc404377@gmail.com> Date: Sun, 14 Apr 2019 18:27:43 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <9171e4f6-1ede-ab3a-caa6-83a2d9033650@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 04.03.2019 16:42, Dmitry Osipenko пишет: > 04.03.2019 11:18, Peter De Schrijver пишет: >> On Wed, Feb 27, 2019 at 06:15:04PM +0300, Dmitry Osipenko wrote: >>> 24.02.2019 18:32, Dmitry Osipenko пишет: >>>> Initially Common Clock Framework isn't aware of the clock-enable status, >>>> this results in enabling of clocks that were enabled by bootloader. This >>>> is not a big deal for a regular clock-gates, but for PLL's it may have >>>> some unpleasant consequences. Thus re-enabling PLLX (the main CPU parent >>>> clock) may result in extra long period of PLL re-locking. >>>> >>>> Signed-off-by: Dmitry Osipenko >>>> --- >>> >>> Peter (and everyone else), yours r-b and ACK will be appreciated since you kinda already took a look at this patch in the past and were okay with it (IIRC, we had some brief discussion on the #tegra IRC a few months ago), thanks. >>> >> >> Acked-By: Peter De Schrijver >> > > Awesome, thanks again! > Hello Stephen and Michael, Could you please pick up this patch to get it into linux-next to get some more testing exposure before it will hit upstream? Thanks in advance.