From patchwork Wed Dec 13 15:33:28 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 10110295 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B53BB60352 for ; Wed, 13 Dec 2017 15:34:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A84B828C5E for ; Wed, 13 Dec 2017 15:34:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9C6BF28C6A; Wed, 13 Dec 2017 15:34:15 +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=-4.2 required=2.0 tests=BAYES_00, 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 2CAA228C5E for ; Wed, 13 Dec 2017 15:34:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7B5416E532; Wed, 13 Dec 2017 15:33:50 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.free-electrons.com (mail.free-electrons.com [62.4.15.54]) by gabe.freedesktop.org (Postfix) with ESMTP id 4EE406E513 for ; Wed, 13 Dec 2017 15:33:40 +0000 (UTC) Received: by mail.free-electrons.com (Postfix, from userid 110) id 1F37C2094D; Wed, 13 Dec 2017 16:33:39 +0100 (CET) Received: from localhost (LStLambert-657-1-97-87.w90-63.abo.wanadoo.fr [90.63.216.87]) by mail.free-electrons.com (Postfix) with ESMTPSA id EA2BE20503; Wed, 13 Dec 2017 16:33:38 +0100 (CET) From: Maxime Ripard To: Daniel Vetter , David Airlie , Chen-Yu Tsai , Maxime Ripard Subject: [PATCH 4/8] drm/sun4i: crtc: Add a custom crtc atomic_check Date: Wed, 13 Dec 2017 16:33:28 +0100 Message-Id: X-Mailer: git-send-email 2.14.3 In-Reply-To: References: In-Reply-To: References: Cc: linux-arm-kernel@lists.infradead.org, Thomas Petazzoni , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, thomas@vitsch.nl X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP We have some restrictions on what the planes and CRTC can provide that are tied to only one generation of display engines. For example, on the first generation, we can only have one YUV plane or one plane that uses the frontend output. Let's allow our engines to provide an atomic_check callback to validate the current configuration. Signed-off-by: Maxime Ripard Reviewed-by: Neil Armstrong --- drivers/gpu/drm/sun4i/sun4i_crtc.c | 14 ++++++++++++++ drivers/gpu/drm/sun4i/sunxi_engine.h | 2 ++ 2 files changed, 16 insertions(+) diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.c b/drivers/gpu/drm/sun4i/sun4i_crtc.c index 5decae0069d0..2a565325714f 100644 --- a/drivers/gpu/drm/sun4i/sun4i_crtc.c +++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c @@ -46,6 +46,19 @@ static struct drm_encoder *sun4i_crtc_get_encoder(struct drm_crtc *crtc) return NULL; } +static int sun4i_crtc_atomic_check(struct drm_crtc *crtc, + struct drm_crtc_state *state) +{ + struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc); + struct sunxi_engine *engine = scrtc->engine; + int ret = 0; + + if (engine && engine->ops && engine->ops->atomic_check) + ret = engine->ops->atomic_check(engine, state); + + return ret; +} + static void sun4i_crtc_atomic_begin(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { @@ -125,6 +138,7 @@ static void sun4i_crtc_mode_set_nofb(struct drm_crtc *crtc) } static const struct drm_crtc_helper_funcs sun4i_crtc_helper_funcs = { + .atomic_check = sun4i_crtc_atomic_check, .atomic_begin = sun4i_crtc_atomic_begin, .atomic_flush = sun4i_crtc_atomic_flush, .atomic_enable = sun4i_crtc_atomic_enable, diff --git a/drivers/gpu/drm/sun4i/sunxi_engine.h b/drivers/gpu/drm/sun4i/sunxi_engine.h index 4cb70ae65c79..42655230aeba 100644 --- a/drivers/gpu/drm/sun4i/sunxi_engine.h +++ b/drivers/gpu/drm/sun4i/sunxi_engine.h @@ -16,6 +16,8 @@ struct drm_device; struct sunxi_engine; struct sunxi_engine_ops { + int (*atomic_check)(struct sunxi_engine *engine, + struct drm_crtc_state *state); void (*commit)(struct sunxi_engine *engine); struct drm_plane **(*layers_init)(struct drm_device *drm, struct sunxi_engine *engine);