From patchwork Wed Dec 5 08:37:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 10713215 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 5C9C017DB for ; Wed, 5 Dec 2018 08:38:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4DA742B73A for ; Wed, 5 Dec 2018 08:38:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 41F892C3E3; Wed, 5 Dec 2018 08:38:15 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0A05C2B73A for ; Wed, 5 Dec 2018 08:38:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 508AB6E37A; Wed, 5 Dec 2018 08:38:03 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.bootlin.com (mail.bootlin.com [62.4.15.54]) by gabe.freedesktop.org (Postfix) with ESMTP id E768F6E381 for ; Wed, 5 Dec 2018 08:37:57 +0000 (UTC) Received: by mail.bootlin.com (Postfix, from userid 110) id 2859820DC9; Wed, 5 Dec 2018 09:37:56 +0100 (CET) Received: from localhost.localdomain (aaubervilliers-681-1-79-44.w90-88.abo.wanadoo.fr [90.88.21.44]) by mail.bootlin.com (Postfix) with ESMTPSA id D2B8E20E0C; Wed, 5 Dec 2018 09:37:29 +0100 (CET) From: Paul Kocialkowski To: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 19/22] drm/sun4i: Set the coef_rdy bit right after the coef have been set Date: Wed, 5 Dec 2018 09:37:00 +0100 Message-Id: <20181205083703.21488-20-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20181205083703.21488-1-paul.kocialkowski@bootlin.com> References: <20181205083703.21488-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Maxime Ripard , linux-sunxi@googlegroups.com, Paul Kocialkowski , David Airlie , Chen-Yu Tsai , Thomas Petazzoni , Sean Paul Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Maxime Ripard The COEF_RDY bit is used to tell the hardware that new FIR filters coefficients have been written to the registers and that the hardware should take them into account starting next frame. Signed-off-by: Maxime Ripard Signed-off-by: Paul Kocialkowski --- drivers/gpu/drm/sun4i/sun4i_frontend.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c index 6636b1998a76..7a1095b004d4 100644 --- a/drivers/gpu/drm/sun4i/sun4i_frontend.c +++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c @@ -96,6 +96,10 @@ static void sun4i_frontend_scaler_init(struct sun4i_frontend *frontend) sun4i_frontend_vert_coef[i]); } + regmap_write_bits(frontend->regs, + SUN4I_FRONTEND_FRM_CTRL_REG, + SUN4I_FRONTEND_FRM_CTRL_COEF_RDY, + SUN4I_FRONTEND_FRM_CTRL_COEF_RDY); } int sun4i_frontend_init(struct sun4i_frontend *frontend)