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[188.141.3.169]) by smtp.gmail.com with ESMTPSA id hn40-20020a05600ca3a800b003fbaa2903f4sm4378117wmb.19.2023.07.28.07.34.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Jul 2023 07:34:29 -0700 (PDT) Message-ID: Date: Fri, 28 Jul 2023 15:34:28 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH 00/33] Qualcomm video decoder/encoder driver Content-Language: en-US To: Vikash Garodia , stanimir.k.varbanov@gmail.com, agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, mchehab@kernel.org, hans.verkuil@cisco.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: quic_dikshita@quicinc.com References: <1690550624-14642-1-git-send-email-quic_vgarodia@quicinc.com> From: Bryan O'Donoghue In-Reply-To: <1690550624-14642-1-git-send-email-quic_vgarodia@quicinc.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 28/07/2023 14:23, Vikash Garodia wrote: > This patch series introduces support for Qualcomm new video acceleration > hardware architecture, used for video stream decoding/encoding. This driver > is based on new communication protocol between video hardware and application > processor. I think my main comment and question for this driver is; what specifically about the sm8550 requires an entirely new driver for the venus block ? We have a re-implementation of the HFI as an example. What are the specifics of the technical barriers, if any, that preclude adding or extending the existing venus codebase to enable the new silicon ? --- bod