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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, 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 E065FC11D3D for ; Thu, 27 Feb 2020 17:40:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B324D2469F for ; Thu, 27 Feb 2020 17:40:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="oNyTDFCS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729982AbgB0RkJ (ORCPT ); Thu, 27 Feb 2020 12:40:09 -0500 Received: from lelv0142.ext.ti.com ([198.47.23.249]:54706 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729601AbgB0RkJ (ORCPT ); Thu, 27 Feb 2020 12:40:09 -0500 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 01RHe1nJ114705; Thu, 27 Feb 2020 11:40:01 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1582825201; bh=yCTQ91m5aGM6seUc7EpAnT1neSTpni3MsgYMcrP8N+o=; h=Subject:To:CC:References:From:Date:In-Reply-To; b=oNyTDFCSA7V8J7KDRy4u9ObN0ydWqyDrCfr3QGYEqp6IgHTnKZ9JkrjXghtAIS9e3 botgbKyq5mdTSzM7eoVHa6shz/UUT+6Sp95hPqeh7KmN5NidTDqXYxZ/xKiP1N/C+m SrfMKPWzXkwVo2jRF6NftxPl15D+YBCvehM/G47M= Received: from DFLE115.ent.ti.com (dfle115.ent.ti.com [10.64.6.36]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 01RHe1jL045726; Thu, 27 Feb 2020 11:40:01 -0600 Received: from DFLE101.ent.ti.com (10.64.6.22) by DFLE115.ent.ti.com (10.64.6.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Thu, 27 Feb 2020 11:40:00 -0600 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Thu, 27 Feb 2020 11:40:00 -0600 Received: from [128.247.58.153] (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 01RHe0rO003481; Thu, 27 Feb 2020 11:40:00 -0600 Subject: Re: [PATCH 0/3] Drop PRUSS and OMAP4 IPU/DSP hwmod data To: Tony Lindgren CC: Tero Kristo , Roger Quadros , , References: <20200224232152.25562-1-s-anna@ti.com> <20200226182603.GT37466@atomide.com> <0f47de68-6b89-4219-5ff9-a9c39b6bc759@ti.com> <20200227012705.GD37466@atomide.com> From: Suman Anna Message-ID: <188af17e-6293-9e97-b142-3b5f5b69bbd8@ti.com> Date: Thu, 27 Feb 2020 11:40:00 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20200227012705.GD37466@atomide.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org On 2/26/20 7:27 PM, Tony Lindgren wrote: > * Suman Anna [200226 20:31]: >> On 2/26/20 12:26 PM, Tony Lindgren wrote: >>> * Suman Anna [200224 15:22]: >>>> Hi Tony, >>>> >>>> The following patches drop the hwmod data for PRUSS on AM33xx and AM437x >>>> SoCs, and for the IPU and DSP processors on OMAP4 SoC. Patches are based >>>> on 5.6-rc1. Please consider these for the 5.7 merge window. >>>> >>>> I will be submitting another series tomorrow to add the ti-sysc support >>>> for PRUSS. Nevertheless, the PRUSS hwmods will not be used going forward >>>> and can be dropped independently. >>>> >>>> The IPU and DSP hwmods were never added for OMAP5 and DRA7xx/AM57xx SoCs, >>>> and the MMU data was already dropped for 5.6-rc1, as it has all been >>>> converted to ti-sysc and omap-prm. The DT nodes for these will follow >>>> for the next merge window once the current OMAP remoteproc DT support >>>> is accepted [1]. >>> >>> Well we still need the hwmod data until dts data is in place to reset >>> and idle these modules. So I'll wait with this set until we have the >>> dts changes in place. >> >> Not really, you cannot just idle these processors devices by themselves >> without the cores running. The hwmod code actually keeps these in the >> default reset asserted state itself, so no harm done in dropping the >> data. The remoteproc bindings are acked, so for next merge window, we >> can post the dts nodes once those get merged. > > OK if they are in reset from the bootloader.. I'll try to check. OK thanks. FWIW, we have never added the hwmods for IPUs and DSPs on OMAP5 and DRA7xx/AM57xx, and most of them are pseudo hwmods anyway for reset purposes, and do not get exercised until the remoteproc driver would have specifically requested for them. regards Suman 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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 4F82FC11D3D for ; Thu, 27 Feb 2020 17:40:18 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1C3A9246A4 for ; 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Thu, 27 Feb 2020 11:40:00 -0600 Subject: Re: [PATCH 0/3] Drop PRUSS and OMAP4 IPU/DSP hwmod data To: Tony Lindgren References: <20200224232152.25562-1-s-anna@ti.com> <20200226182603.GT37466@atomide.com> <0f47de68-6b89-4219-5ff9-a9c39b6bc759@ti.com> <20200227012705.GD37466@atomide.com> From: Suman Anna Message-ID: <188af17e-6293-9e97-b142-3b5f5b69bbd8@ti.com> Date: Thu, 27 Feb 2020 11:40:00 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20200227012705.GD37466@atomide.com> Content-Language: en-US X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200227_094006_823983_2F4605AB X-CRM114-Status: GOOD ( 12.23 ) 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: Tero Kristo , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Roger Quadros 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 On 2/26/20 7:27 PM, Tony Lindgren wrote: > * Suman Anna [200226 20:31]: >> On 2/26/20 12:26 PM, Tony Lindgren wrote: >>> * Suman Anna [200224 15:22]: >>>> Hi Tony, >>>> >>>> The following patches drop the hwmod data for PRUSS on AM33xx and AM437x >>>> SoCs, and for the IPU and DSP processors on OMAP4 SoC. Patches are based >>>> on 5.6-rc1. Please consider these for the 5.7 merge window. >>>> >>>> I will be submitting another series tomorrow to add the ti-sysc support >>>> for PRUSS. Nevertheless, the PRUSS hwmods will not be used going forward >>>> and can be dropped independently. >>>> >>>> The IPU and DSP hwmods were never added for OMAP5 and DRA7xx/AM57xx SoCs, >>>> and the MMU data was already dropped for 5.6-rc1, as it has all been >>>> converted to ti-sysc and omap-prm. The DT nodes for these will follow >>>> for the next merge window once the current OMAP remoteproc DT support >>>> is accepted [1]. >>> >>> Well we still need the hwmod data until dts data is in place to reset >>> and idle these modules. So I'll wait with this set until we have the >>> dts changes in place. >> >> Not really, you cannot just idle these processors devices by themselves >> without the cores running. The hwmod code actually keeps these in the >> default reset asserted state itself, so no harm done in dropping the >> data. The remoteproc bindings are acked, so for next merge window, we >> can post the dts nodes once those get merged. > > OK if they are in reset from the bootloader.. I'll try to check. OK thanks. FWIW, we have never added the hwmods for IPUs and DSPs on OMAP5 and DRA7xx/AM57xx, and most of them are pseudo hwmods anyway for reset purposes, and do not get exercised until the remoteproc driver would have specifically requested for them. regards Suman _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel