From patchwork Sun Oct 7 09:38:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Jernej_=C5=A0krabec?= X-Patchwork-Id: 10629497 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3D4C5933 for ; Sun, 7 Oct 2018 09:41:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2FC9429190 for ; Sun, 7 Oct 2018 09:41:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 23ACD291AF; Sun, 7 Oct 2018 09:41:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BF53729190 for ; Sun, 7 Oct 2018 09:41:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728197AbeJGQqd (ORCPT ); Sun, 7 Oct 2018 12:46:33 -0400 Received: from mailoutvs36.siol.net ([185.57.226.227]:39815 "EHLO mail.siol.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728150AbeJGQqd (ORCPT ); Sun, 7 Oct 2018 12:46:33 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTP id 4E005520C56; Sun, 7 Oct 2018 11:39:48 +0200 (CEST) X-Virus-Scanned: amavisd-new at psrvmta10.zcs-production.pri Received: from mail.siol.net ([127.0.0.1]) by localhost (psrvmta10.zcs-production.pri [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id 3bm5-EKQ5xpF; Sun, 7 Oct 2018 11:39:48 +0200 (CEST) Received: from mail.siol.net (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTPS id 03154520C68; Sun, 7 Oct 2018 11:39:48 +0200 (CEST) Received: from localhost.localdomain (cpe1-8-82.cable.triera.net [213.161.8.82]) (Authenticated sender: 031275009) by mail.siol.net (Postfix) with ESMTPSA id 8F6D4520C56; Sun, 7 Oct 2018 11:39:45 +0200 (CEST) From: Jernej Skrabec To: maxime.ripard@bootlin.com, wens@csie.org Cc: robh+dt@kernel.org, sboyd@kernel.org, airlied@linux.ie, architt@codeaurora.org, a.hajda@samsung.com, Laurent.pinchart@ideasonboard.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com Subject: [PATCH v2 12/29] drm/sun4i: Disable unused DE2 sub-engines Date: Sun, 7 Oct 2018 11:38:48 +0200 Message-Id: <20181007093905.11253-13-jernej.skrabec@siol.net> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181007093905.11253-1-jernej.skrabec@siol.net> References: <20181007093905.11253-1-jernej.skrabec@siol.net> MIME-Version: 1.0 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Some sub-engines are unused. Disable them explicitly. Signed-off-by: Jernej Skrabec --- drivers/gpu/drm/sun4i/sun8i_mixer.c | 8 ++++++++ drivers/gpu/drm/sun4i/sun8i_mixer.h | 4 ++-- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c index 7beb3065a522..2cb24d987005 100644 --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c @@ -462,6 +462,14 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master, /* Reset the registers */ for (i = 0; i < DE2_MIXER_UNIT_SIZE; i += 4) regmap_write(mixer->engine.regs, i, 0); + /* Disable unused sub-engines */ + regmap_write(mixer->engine.regs, DE2_MIXER_FCE_EN, 0); + regmap_write(mixer->engine.regs, DE2_MIXER_BWS_EN, 0); + regmap_write(mixer->engine.regs, DE2_MIXER_LTI_EN, 0); + regmap_write(mixer->engine.regs, DE2_MIXER_PEAK_EN, 0); + regmap_write(mixer->engine.regs, DE2_MIXER_ASE_EN, 0); + regmap_write(mixer->engine.regs, DE2_MIXER_FCC_EN, 0); + regmap_write(mixer->engine.regs, DE2_MIXER_DCSC_EN, 0); /* Enable the mixer */ regmap_write(mixer->engine.regs, DE2_MIXER_GLOBAL_CTL, diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h index e2aa42e8f715..f26ee6af6cba 100644 --- a/drivers/gpu/drm/sun4i/sun8i_mixer.h +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h @@ -101,8 +101,8 @@ #define DE2_MIXER_FBFMT_YUV411 14 /* - * These sub-engines are still unknown now, the EN registers are here only to - * be used to disable these sub-engines. + * Sub-engines listed bellow are unused for now. The EN registers are here only + * to be used to disable these sub-engines. */ #define DE2_MIXER_FCE_EN 0xa0000 #define DE2_MIXER_BWS_EN 0xa2000