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,URIBL_BLOCKED,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 BAF04C742D7 for ; Sat, 13 Jul 2019 12:04:29 +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 9148520848 for ; Sat, 13 Jul 2019 12:04:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="PM6hpYG5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9148520848 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=siol.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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=RUks5visKgzc1QcEhIGGbARnX9X2wLainBDZ81l+BSc=; b=PM6hpYG5P+G989 lxBV83GyikC5g/9nKEIY1CCU083KfxN/Y3QMZNS9Dvkn9rV985ru/iRS78mdov6DbZuvaQ4VfKxyu GK8mUB+hz2lJJYkMwnjXx15POxko1ZdL9lctshjB+w1A0YIdhSU/j/hTIGaBaQHhBBN5OqP1P8aDU 913oGilkt1LCc4vXebyIAJnlJbPO6pBdhywU4pFGnngzjE+1H2/WQVzN63vYPTKgrZ59REk7sRexL 2NhYRMPwpH6Xc483/N2OIlrx7v3HsWLPwL7iD9S/5DsVh7Ta7ThEsOsqxHCT5UsDJ7PkuLwqPa5oi MLSGxm4wnLrQJtavQGEg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hmGlH-0007wV-7X; Sat, 13 Jul 2019 12:04:19 +0000 Received: from mailoutvs41.siol.net ([185.57.226.232] helo=mail.siol.net) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hmGl5-0007k6-2I for linux-arm-kernel@lists.infradead.org; Sat, 13 Jul 2019 12:04:08 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.siol.net (Zimbra) with ESMTP id C04B8520797; Sat, 13 Jul 2019 14:04:01 +0200 (CEST) X-Virus-Scanned: amavisd-new at psrvmta12.zcs-production.pri Received: from mail.siol.net ([127.0.0.1]) by localhost (psrvmta12.zcs-production.pri [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id 9JqdsLTKX2Ig; Sat, 13 Jul 2019 14:04:01 +0200 (CEST) Received: from mail.siol.net (localhost [127.0.0.1]) by mail.siol.net (Zimbra) with ESMTPS id 7B44B5214F8; Sat, 13 Jul 2019 14:04:01 +0200 (CEST) Received: from localhost.localdomain (cpe-194-152-11-237.cable.triera.net [194.152.11.237]) (Authenticated sender: 031275009) by mail.siol.net (Zimbra) with ESMTPSA id 0A2A9520797; Sat, 13 Jul 2019 14:03:59 +0200 (CEST) From: Jernej Skrabec To: maxime.ripard@bootlin.com, wens@csie.org Subject: [PATCH 2/3] drm/sun4i: sun8i_csc: Simplify register writes Date: Sat, 13 Jul 2019 14:03:45 +0200 Message-Id: <20190713120346.30349-3-jernej.skrabec@siol.net> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190713120346.30349-1-jernej.skrabec@siol.net> References: <20190713120346.30349-1-jernej.skrabec@siol.net> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190713_050407_276152_DBBAFBE6 X-CRM114-Status: UNSURE ( 9.20 ) X-CRM114-Notice: Please train this message. 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: airlied@linux.ie, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com, daniel@ffwll.ch, linux-arm-kernel@lists.infradead.org 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 It turns out addition of 0x200 to constant parts (+0.5) is not really necessary. Besides, we can consider that before and fix value in CSC matrix. This simplifies register writes quiet a bit. Signed-off-by: Jernej Skrabec --- drivers/gpu/drm/sun4i/sun8i_csc.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.c b/drivers/gpu/drm/sun4i/sun8i_csc.c index b8c059f1a118..e07b7876d89b 100644 --- a/drivers/gpu/drm/sun4i/sun8i_csc.c +++ b/drivers/gpu/drm/sun4i/sun8i_csc.c @@ -69,7 +69,7 @@ static void sun8i_csc_set_coefficients(struct regmap *map, u32 base, enum sun8i_csc_mode mode) { const u32 *table; - int i, data; + u32 base_reg; switch (mode) { case SUN8I_CSC_MODE_YUV2RGB: @@ -83,13 +83,8 @@ static void sun8i_csc_set_coefficients(struct regmap *map, u32 base, return; } - for (i = 0; i < 12; i++) { - data = table[i]; - /* For some reason, 0x200 must be added to constant parts */ - if (((i + 1) & 3) == 0) - data += 0x200; - regmap_write(map, SUN8I_CSC_COEFF(base, i), data); - } + base_reg = SUN8I_CSC_COEFF(base, 0); + regmap_bulk_write(map, base_reg, table, 12); } static void sun8i_de3_ccsc_set_coefficients(struct regmap *map, int layer, -- 2.22.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel