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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 441B0C4360C for ; Sun, 6 Oct 2019 17:40:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1E94D20862 for ; Sun, 6 Oct 2019 17:40:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570383645; bh=p/LTZv2Rg4AcXfx4nYRbWpJmu7o4xkjBC4qUBZfeDW8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=1d7zycMCZDLwxZNv7nC9zBBtaJi038bVSTe44wWTN44GZ3GSHauqvS5YQLFRAQ/4F pePAAmQD+mmAp3gy3jwKtsx5nwlj26Ua5ogNkppSoPtiHQ7g4fsfM0sciPTgW0rrvb mgbZj1b8u53wVi61xQgh/M0ikkiYodXPwfe3zbAw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728995AbfJFRkn (ORCPT ); Sun, 6 Oct 2019 13:40:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:40204 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730378AbfJFRkk (ORCPT ); Sun, 6 Oct 2019 13:40:40 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9BBBA20700; Sun, 6 Oct 2019 17:40:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570383639; bh=p/LTZv2Rg4AcXfx4nYRbWpJmu7o4xkjBC4qUBZfeDW8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U3zUrfqvQtjkvnQelTKXHm7KNgfogEsU68anl0oPR5/KnNv93OXUIF8vh4ZgTEZqE JGBWtPFTECT2o5HzsoqPWVcfMSMBh2baTSj5dZpvBItzccgs6STsLqynbwtQjJV82T WJFJxNCGTOOMAsV0LH5pK8qM4QwzaG3xiwfwkOaE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Nikola Cornij , Nevenko Stupar , Leo Li , Alex Deucher , Sasha Levin Subject: [PATCH 5.3 007/166] drm/amd/display: Power-gate all DSCs at driver init time Date: Sun, 6 Oct 2019 19:19:33 +0200 Message-Id: <20191006171213.316022291@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191006171212.850660298@linuxfoundation.org> References: <20191006171212.850660298@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nikola Cornij [ Upstream commit 75c35000235f3662f2810e9a59b0c8eed045432e ] [why] DSC should be powered-on only on as-needed basis, i.e. if the mode requires it [how] Loop over all the DSCs at driver init time and power-gate each Signed-off-by: Nikola Cornij Reviewed-by: Nevenko Stupar Acked-by: Leo Li Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index d810c8940129b..2627e0a98a96a 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -585,6 +585,10 @@ static void dcn20_init_hw(struct dc *dc) } } + /* Power gate DSCs */ + for (i = 0; i < res_pool->res_cap->num_dsc; i++) + dcn20_dsc_pg_control(hws, res_pool->dscs[i]->inst, false); + /* Blank pixel data with OPP DPG */ for (i = 0; i < dc->res_pool->timing_generator_count; i++) { struct timing_generator *tg = dc->res_pool->timing_generators[i]; -- 2.20.1