From patchwork Tue Dec 4 14:22:14 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 10711923 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 7250618A7 for ; Tue, 4 Dec 2018 14:23:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 651782BA71 for ; Tue, 4 Dec 2018 14:23:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 593842BA7D; Tue, 4 Dec 2018 14:23:33 +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 EEA882BA7E for ; Tue, 4 Dec 2018 14:23:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DA9446E281; Tue, 4 Dec 2018 14:23:28 +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 416526E28B for ; Tue, 4 Dec 2018 14:23:21 +0000 (UTC) Received: by mail.bootlin.com (Postfix, from userid 110) id 22E2C20EA7; Tue, 4 Dec 2018 15:23:20 +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 0FE3B20E22; Tue, 4 Dec 2018 15:22:43 +0100 (CET) From: Paul Kocialkowski To: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 17/21] drm/sun4i: frontend: Add a quirk structure Date: Tue, 4 Dec 2018 15:22:14 +0100 Message-Id: <20181204142218.16284-18-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20181204142218.16284-1-paul.kocialkowski@bootlin.com> References: <20181204142218.16284-1-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 ACCESS_CTRL bit is not found on all the variants of the frontend, so let's introduce a structure that will hold whether or not we need to set it, and associate it with the compatible. This will be extended for further similar quirks later on. Signed-off-by: Maxime Ripard Signed-off-by: Paul Kocialkowski --- drivers/gpu/drm/sun4i/sun4i_frontend.c | 21 +++++++++++++++++---- drivers/gpu/drm/sun4i/sun4i_frontend.h | 6 ++++++ 2 files changed, 23 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c index c80338368992..5a2e2057fe6c 100644 --- a/drivers/gpu/drm/sun4i/sun4i_frontend.c +++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -74,9 +75,10 @@ static void sun4i_frontend_scaler_init(struct sun4i_frontend *frontend) { int i; - regmap_write_bits(frontend->regs, SUN4I_FRONTEND_FRM_CTRL_REG, - SUN4I_FRONTEND_FRM_CTRL_COEF_ACCESS_CTRL, - SUN4I_FRONTEND_FRM_CTRL_COEF_ACCESS_CTRL); + if (frontend->data->has_coef_access_ctrl) + regmap_write_bits(frontend->regs, SUN4I_FRONTEND_FRM_CTRL_REG, + SUN4I_FRONTEND_FRM_CTRL_COEF_ACCESS_CTRL, + SUN4I_FRONTEND_FRM_CTRL_COEF_ACCESS_CTRL); for (i = 0; i < 32; i++) { regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZCOEF0_REG(i), @@ -563,6 +565,10 @@ static int sun4i_frontend_bind(struct device *dev, struct device *master, frontend->dev = dev; frontend->node = dev->of_node; + frontend->data = of_device_get_match_data(dev); + if (!frontend->data) + return -ENODEV; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); regs = devm_ioremap_resource(dev, res); if (IS_ERR(regs)) @@ -675,8 +681,15 @@ static const struct dev_pm_ops sun4i_frontend_pm_ops = { .runtime_suspend = sun4i_frontend_runtime_suspend, }; +static const struct sun4i_frontend_data sun8i_a33_frontend = { + .has_coef_access_ctrl = true, +}; + const struct of_device_id sun4i_frontend_of_table[] = { - { .compatible = "allwinner,sun8i-a33-display-frontend" }, + { + .compatible = "allwinner,sun8i-a33-display-frontend", + .data = &sun8i_a33_frontend + }, { } }; EXPORT_SYMBOL(sun4i_frontend_of_table); diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.h b/drivers/gpu/drm/sun4i/sun4i_frontend.h index 9434407ea40d..22b8afa3795e 100644 --- a/drivers/gpu/drm/sun4i/sun4i_frontend.h +++ b/drivers/gpu/drm/sun4i/sun4i_frontend.h @@ -101,6 +101,10 @@ struct drm_plane; struct regmap; struct reset_control; +struct sun4i_frontend_data { + bool has_coef_access_ctrl; +}; + struct sun4i_frontend { struct list_head list; struct device *dev; @@ -111,6 +115,8 @@ struct sun4i_frontend { struct clk *ram_clk; struct regmap *regs; struct reset_control *reset; + + const struct sun4i_frontend_data *data; }; extern const struct of_device_id sun4i_frontend_of_table[];