From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84D82C433E7 for ; Mon, 20 Jul 2020 04:29:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5BFD1207DD for ; Mon, 20 Jul 2020 04:29:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="kJli9AY8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726120AbgGTE3h (ORCPT ); Mon, 20 Jul 2020 00:29:37 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:50193 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725845AbgGTE3g (ORCPT ); Mon, 20 Jul 2020 00:29:36 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1595219376; h=Content-Transfer-Encoding: Content-Type: In-Reply-To: MIME-Version: Date: Message-ID: From: References: Cc: To: Subject: Sender; bh=Dpw1HGE3ZCaDA+GhNOQnpyNXQW1TL4kVVJ9x2AeOGN4=; b=kJli9AY8WF5NMcW887PjIAxrBkLK35o9FE4F7NmpLLmgVwxfN/r342pmaRjEGzPN+QVByeEV P9xMBy5iOzw8qL/7NhpO9ht9UM7JQw+uSmziD0mCllAyegdzVRcUAQpM8o9oisEK23SKFaUB BnQ9a7453YNNXbnTO7EYqXl2IFs= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n11.prod.us-east-1.postgun.com with SMTP id 5f151d958423214e131269cd (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Mon, 20 Jul 2020 04:29:09 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id D6B40C433CB; Mon, 20 Jul 2020 04:29:08 +0000 (UTC) Received: from [192.168.1.12] (unknown [61.3.19.245]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rnayak) by smtp.codeaurora.org (Postfix) with ESMTPSA id BDC83C433C6; Mon, 20 Jul 2020 04:29:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org BDC83C433C6 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=rnayak@codeaurora.org Subject: Re: [PATCH v2 1/4] dt-bindings: media: venus: Add an optional power domain for perf voting To: Rob Herring Cc: Stanimir Varbanov , Andy Gross , Bjorn Andersson , linux-arm-msm , Linux Media Mailing List , devicetree@vger.kernel.org, "linux-kernel@vger.kernel.org" , Matthias Kaehlcke References: <1594878139-3402-1-git-send-email-rnayak@codeaurora.org> <1594878139-3402-2-git-send-email-rnayak@codeaurora.org> <20200716195913.GA2744252@bogus> From: Rajendra Nayak Message-ID: <59502915-743e-6756-34e2-f409e61fc03b@codeaurora.org> Date: Mon, 20 Jul 2020 09:59:05 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/18/2020 12:26 AM, Rob Herring wrote: > On Thu, Jul 16, 2020 at 11:52 PM Rajendra Nayak wrote: >> >> >> On 7/17/2020 1:29 AM, Rob Herring wrote: >>> On Thu, Jul 16, 2020 at 11:12:16AM +0530, Rajendra Nayak wrote: >>>> Add an optional power domain which when specified can be used for >>>> setting the performance state of Venus. >>> >>> The h/w suddenly grew a new power island/domain? Seems like an abuse of >>> power-domains... >> >> The power-domain always existed, we have just managed to survive without >> having venus support DVFS and have the domain always be at a high performance >> level (set statically by boot code) >> Now, if we care to do DVFS and support better PM on the SoC, its important >> for the devices to manage this additional power domain (and dynamically >> scale it) >> >> That said, if the name 'opp-pd' makes it look like a software construct, >> like Bjorn mentioned, I am fine to give it a real name like 'cx-pd' >> Does that sound good? > > He suggested 'cx' as '-pd' would be redundant. I have no idea what > 'cx' means, but fine. > >> PS: Like I mentioned earlier [1], cx is a shared power island, >> not a power island specific to this block, and definitely not a software >> pm-domain construct. > > Put this context/detail into your patches. Assume I don't remember > what happened last week. Thanks Rob, will do when I re-post shortly. > > Unfortunately, gmail seems to have no way to filter on unread mails in > reply to my replies and doesn't move the thread up in 'Sent' filter, > so older threads get lost. > > Rob > >> [1] https://lore.kernel.org/patchwork/patch/1241077/ -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation