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[188.141.3.169]) by smtp.gmail.com with ESMTPSA id j4-20020adfe504000000b003063a92bbf5sm5199752wrm.70.2023.07.28.08.58.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Jul 2023 08:58:24 -0700 (PDT) Message-ID: Date: Fri, 28 Jul 2023 16:58:23 +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 18/33] iris: vidc: hfi: add Host Firmware Interface (HFI) 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> <1690550624-14642-19-git-send-email-quic_vgarodia@quicinc.com> From: Bryan O'Donoghue In-Reply-To: <1690550624-14642-19-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: > + rc = hfi_packet_sys_intraframe_powercollapse(core, core->packet, > + core->packet_size, enable); > + if (rc) > + return rc; I'm 99.9999999999 % sure this is misnamed. "Inter" means in-between two things. "Intra" means inside of one thing. So "intraframe" means inside of one frame "interframe" would mean power collapsing in-between two frames, which is what I think this does. And I'd still rather be adding inter-frame power-collapse to as many different versions of the existing silicon and new silicon as opposed to segregating it off in a new driver. I'm assuming that more than sm8550 supports it since @ the end of the day this is a firmware feature to power-collapse during an active session when we aren't busy. --- bod