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[109.252.170.211]) by smtp.googlemail.com with ESMTPSA id b13sm1064037lfa.92.2020.09.02.05.56.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 02 Sep 2020 05:56:27 -0700 (PDT) Subject: Re: [PATCH v2 2/6] regmap: Use flexible sleep To: Marek Szyprowski , Lee Jones , Rob Herring , Thierry Reding , Jonathan Hunter , Pavel Machek , Dan Murphy , Sebastian Reichel , Lubomir Rintel , Mark Brown Cc: devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-leds@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, Jerome Brunet , Neil Armstrong , Kevin Hilman References: <20200830185356.5365-1-digetx@gmail.com> <20200830185356.5365-3-digetx@gmail.com> From: Dmitry Osipenko Message-ID: Date: Wed, 2 Sep 2020 15:56:26 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: 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 02.09.2020 15:47, Marek Szyprowski пишет: > Hi Dmitry, > > On 30.08.2020 20:53, Dmitry Osipenko wrote: >> The multi-reg write function uses udelay(), which is a busy-loop based >> delaying function that is not suitable for a long delays. Hence let's >> replace the udelay() with fsleep(), which is flexible sleep function that >> selects best delay function based on the delay-time. >> >> Signed-off-by: Dmitry Osipenko > > This patch landed in today's linux-next (20200902) as commit > 2b32d2f7ce0a. Sadly it breaks booting of ARM 64bit Amlogic S922X based > Odroid N2 board. Here is the log: Hello, Marek! Thank you for the feedback! I missed that remap supports different types of locking, I'll make a another patch to fix this problem.