From patchwork Sun Nov 4 18:26:48 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: 10667031 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 6F0A617D5 for ; Sun, 4 Nov 2018 18:29:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5F77629634 for ; Sun, 4 Nov 2018 18:29:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 538C32963E; Sun, 4 Nov 2018 18:29:34 +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=-3.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 04BD729634 for ; Sun, 4 Nov 2018 18:29:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=A3dV3ED8N3+XY+yN5rPRpEk4CSjGq/l2dgigOn6K0mQ=; b=UuL5qpFj1y1m7Z O3M0EYEqENcK90E6JCPtgoQnAdSRUEJY+Gzh+N3u+1kOqUdMSRKX18IU4djFFfQSSrD8dS4sHKayc 4rzbythy5vV+aB1AVzd1//uxAsMJPln4INrsUVsuRzxJV6QWQPW9zLRn+/78jjJhdJpjPSjHkdQ73 rsjbDiFCFzJJOukzGDCxtAr/EtUDfuP1yRiBEyiC3jh2t+Sn/2M8wQs914qkD5qGsnOA5EwEm29n5 7Mp6iTDARUfOENJW2DxtQUyCSgXXtXMPidX98fGaXA75dbm18NWzEvJ9sH58OhrU8aNUt2/M3KG3l NXm02v+hRDss0lb8LGkA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gJN9Q-0002sp-MW; Sun, 04 Nov 2018 18:29:32 +0000 Received: from mailoutvs52.siol.net ([185.57.226.243] helo=mail.siol.net) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gJN88-0000pV-7g for linux-arm-kernel@lists.infradead.org; Sun, 04 Nov 2018 18:28:23 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTP id 453DF521233; Sun, 4 Nov 2018 19:28:00 +0100 (CET) X-Virus-Scanned: amavisd-new at psrvmta11.zcs-production.pri Received: from mail.siol.net ([127.0.0.1]) by localhost (psrvmta11.zcs-production.pri [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id CLE2Wv79EP_6; Sun, 4 Nov 2018 19:27:59 +0100 (CET) Received: from mail.siol.net (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTPS id C3E2D521257; Sun, 4 Nov 2018 19:27:59 +0100 (CET) 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 3EE63521270; Sun, 4 Nov 2018 19:27:57 +0100 (CET) From: Jernej Skrabec To: maxime.ripard@bootlin.com, wens@csie.org Subject: [PATCH v3 11/28] drm/sun4i: Disable unused DE2 sub-engines Date: Sun, 4 Nov 2018 19:26:48 +0100 Message-Id: <20181104182705.18047-12-jernej.skrabec@siol.net> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181104182705.18047-1-jernej.skrabec@siol.net> References: <20181104182705.18047-1-jernej.skrabec@siol.net> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181104_102813_067349_D201C8F9 X-CRM114-Status: GOOD ( 13.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, architt@codeaurora.org, a.hajda@samsung.com, sboyd@kernel.org, mturquette@baylibre.com, jernej.skrabec@siol.net, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, airlied@linux.ie, linux-sunxi@googlegroups.com, robh+dt@kernel.org, Laurent.pinchart@ideasonboard.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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 6769ec08c0d3..ec2c264f9481 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, SUN8I_MIXER_FCE_EN, 0); + regmap_write(mixer->engine.regs, SUN8I_MIXER_BWS_EN, 0); + regmap_write(mixer->engine.regs, SUN8I_MIXER_LTI_EN, 0); + regmap_write(mixer->engine.regs, SUN8I_MIXER_PEAK_EN, 0); + regmap_write(mixer->engine.regs, SUN8I_MIXER_ASE_EN, 0); + regmap_write(mixer->engine.regs, SUN8I_MIXER_FCC_EN, 0); + regmap_write(mixer->engine.regs, SUN8I_MIXER_DCSC_EN, 0); /* Enable the mixer */ regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL, diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h index 09e0f4428c1e..a4175b993e0d 100644 --- a/drivers/gpu/drm/sun4i/sun8i_mixer.h +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h @@ -101,8 +101,8 @@ #define SUN8I_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 SUN8I_MIXER_FCE_EN 0xa0000 #define SUN8I_MIXER_BWS_EN 0xa2000