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Thu, 04 Jun 2020 14:40:05 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 78BF810002A; Thu, 4 Jun 2020 14:40:04 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node3.st.com [10.75.127.9]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 407D62BE253; Thu, 4 Jun 2020 14:40:04 +0200 (CEST) Received: from localhost (10.75.127.48) by SFHDAG3NODE3.st.com (10.75.127.9) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 4 Jun 2020 14:39:34 +0200 From: Benjamin Gaignard To: , , , Subject: [PATCH v3 0/3] DCMI set minimum cpufreq requirement Date: Thu, 4 Jun 2020 14:39:29 +0200 Message-ID: <20200604123932.20512-1-benjamin.gaignard@st.com> X-Mailer: git-send-email 2.15.0 MIME-Version: 1.0 X-Originating-IP: [10.75.127.48] X-ClientProxiedBy: SFHDAG7NODE2.st.com (10.75.127.20) To SFHDAG3NODE3.st.com (10.75.127.9) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216, 18.0.687 definitions=2020-06-04_10:2020-06-02, 2020-06-04 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200604_054013_453051_1CF26E46 X-CRM114-Status: GOOD ( 11.89 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Benjamin Gaignard , rjw@rjwysocki.net, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, valentin.schneider@arm.com, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series allow to STM32 camera interface (DCMI) to require a minimum frequency to the CPUs before start streaming frames from the sensor. The minimum frequency requirement is provided in the devide-tree node. Setting a minimum frequency for the CPUs is needed to ensure a quick handling of the interrupts between two sensor frames and avoid dropping half of them. version 3: - add a cpumask field to track boosted CPUs - add irq_affinity_notify callback - protect cpumask field with a mutex Benjamin Gaignard (3): dt-bindings: media: stm32-dcmi: Add DCMI min frequency property media: stm32-dcmi: Set minimum cpufreq requirement ARM: dts: stm32: Set DCMI frequency requirement for stm32mp15x .../devicetree/bindings/media/st,stm32-dcmi.yaml | 8 + arch/arm/boot/dts/stm32mp151.dtsi | 1 + drivers/media/platform/stm32/stm32-dcmi.c | 187 ++++++++++++++++++++- 3 files changed, 188 insertions(+), 8 deletions(-) -- 2.15.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel