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Tue, 15 Oct 2024 07:26:42 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA01.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 49F7Qfce007232 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 15 Oct 2024 07:26:41 GMT Received: from [10.204.101.50] (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Tue, 15 Oct 2024 00:26:36 -0700 Message-ID: Date: Tue, 15 Oct 2024 12:56:34 +0530 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [PATCH v4 00/28] Qualcomm iris video decoder driver Content-Language: en-US To: Krzysztof Kozlowski , Vikash Garodia , Abhinav Kumar , "Mauro Carvalho Chehab" , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel CC: Hans Verkuil , Sebastian Fricke , , , , , Vedang Nagar References: <20241014-qcom-video-iris-v4-v4-0-c5eaa4e9ab9e@quicinc.com> From: Dikshita Agarwal In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: 3FJMYedsetfFeeXfYQEGnrlFEi1Ss1a5 X-Proofpoint-ORIG-GUID: 3FJMYedsetfFeeXfYQEGnrlFEi1Ss1a5 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 malwarescore=0 adultscore=0 impostorscore=0 mlxscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 phishscore=0 spamscore=0 mlxlogscore=880 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410150049 On 10/14/2024 5:24 PM, Krzysztof Kozlowski wrote: > On 14/10/2024 11:07, Dikshita Agarwal wrote: >> Introduce support for Qualcomm new video acceleration hardware i.e. >> iris, used for video stream decoding. >> >> Iris is a multi pipe based hardware that offloads video stream decoding >> from the application processor (AP). It supports H.264 decoding. >> The AP communicates with hardware through a well defined protocol, >> called as host firmware interface (HFI), which provides fine-grained >> and asynchronous control over individual hardware features. >> >> This driver implements upgraded HFI gen2 to communicate with firmware. >> It supports SM8550 which is based out of HFI gen 2. It also supports >> SM8250 which is based out of HFI gen1. >> >> This driver comes with below capabilities: >> - V4L2 complaint video driver with M2M and STREAMING capability. >> - Supports H264 decoder. >> >> This driver comes with below features: >> - Centralized resource management. >> - Centralized management of core and instance states. >> - Defines platform specific capabilities and features. As a results, it >> provides a single point of control to enable/disable a given feature >> depending on specific platform capabilities. >> - Handles various video recommended sequences, like DRC, Drain, Seek, >> EOS. >> - Implements asynchronous communication with hardware to achieve better >> experience in low latency usecases. >> - Output and capture planes are controlled independently. Thereby >> providing a way to reconfigure individual plane. >> - Native hardware support of LAST flag which is mandatory to align with >> port reconfiguration and DRAIN sequence as per V4L guidelines. >> >> Changes since v3: > > You send the patches with b4, so why do you strip the link to previous > series? It makes out life just more difficult. Include the link, how the > b4 instructs you. > Sure, Noted. Link to v3 - https://lore.kernel.org/linux-media/9b116753-9a21-4f9c-b86f-dded20713b53@linaro.org/ Thanks, Dikshita > Best regards, > Krzysztof >