From patchwork Sun Apr 23 10:37:47 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Icenowy Zheng X-Patchwork-Id: 9694729 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 A5729601E9 for ; Sun, 23 Apr 2017 10:39:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 738E4205F7 for ; Sun, 23 Apr 2017 10:39:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6847126E4D; Sun, 23 Apr 2017 10:39:04 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B8A2428173 for ; Sun, 23 Apr 2017 10:39:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1044993AbdDWKjB (ORCPT ); Sun, 23 Apr 2017 06:39:01 -0400 Received: from hermes.aosc.io ([199.195.250.187]:45541 "EHLO hermes.aosc.io" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1045012AbdDWKit (ORCPT ); Sun, 23 Apr 2017 06:38:49 -0400 Received: from localhost (localhost [127.0.0.1]) (Authenticated sender: icenowy@aosc.io) by hermes.aosc.io (Postfix) with ESMTPSA id E756C48733; Sun, 23 Apr 2017 10:38:44 +0000 (UTC) From: Icenowy Zheng To: Rob Herring , Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com, Icenowy Zheng Subject: [PATCH v5 04/11] drm/sun4i: return only planes for layers created Date: Sun, 23 Apr 2017 18:37:47 +0800 Message-Id: <20170423103754.50012-5-icenowy@aosc.io> In-Reply-To: <20170423103754.50012-1-icenowy@aosc.io> References: <20170423103754.50012-1-icenowy@aosc.io> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP As we are going to add support for the Allwinner DE2 Mixer in sun4i-drm driver, we will finally have two types of layers. Each layer is bound to a drm_plane that is CRTC-specific, so we create them when initializing CRTC (calling sun4i_layers_init, which will be generalized in next patch). The drm_plane's will be used when creating CRTC, but the CRTC initialization code do not care other properties of the layer, so we let the sun4i_layers_init function return drm_plane's only. As we have no need to trace the layers after the CRTC is properly created, we drop the layers pointer in sun4i_crtc struct. Doing these things makes the CRTC code independent to the type of layer (the sun4i_layers_init function name is still hardcoded and will be changed in the next patch), so that we can finally gain support for the mixer in DE2, which will has different layers. Signed-off-by: Icenowy Zheng --- drivers/gpu/drm/sun4i/sun4i_crtc.c | 23 ++++++++++++----------- drivers/gpu/drm/sun4i/sun4i_crtc.h | 1 - drivers/gpu/drm/sun4i/sun4i_layer.c | 18 ++++++++++-------- drivers/gpu/drm/sun4i/sun4i_layer.h | 4 ++-- 4 files changed, 24 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.c b/drivers/gpu/drm/sun4i/sun4i_crtc.c index 3c876c3a356a..708b3543d4e9 100644 --- a/drivers/gpu/drm/sun4i/sun4i_crtc.c +++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c @@ -139,6 +139,7 @@ struct sun4i_crtc *sun4i_crtc_init(struct drm_device *drm, struct sun4i_tcon *tcon) { struct sun4i_crtc *scrtc; + struct drm_plane **planes; struct drm_plane *primary = NULL, *cursor = NULL; int ret, i; @@ -149,22 +150,22 @@ struct sun4i_crtc *sun4i_crtc_init(struct drm_device *drm, scrtc->tcon = tcon; /* Create our layers */ - scrtc->layers = sun4i_layers_init(drm, scrtc->backend); - if (IS_ERR(scrtc->layers)) { + planes = sun4i_layers_init(drm, scrtc); + if (IS_ERR(planes)) { dev_err(drm->dev, "Couldn't create the planes\n"); return NULL; } /* find primary and cursor planes for drm_crtc_init_with_planes */ - for (i = 0; scrtc->layers[i]; i++) { - struct sun4i_layer *layer = scrtc->layers[i]; + for (i = 0; planes[i]; i++) { + struct drm_plane *plane = planes[i]; - switch (layer->plane.type) { + switch (plane->type) { case DRM_PLANE_TYPE_PRIMARY: - primary = &layer->plane; + primary = plane; break; case DRM_PLANE_TYPE_CURSOR: - cursor = &layer->plane; + cursor = plane; break; default: break; @@ -188,12 +189,12 @@ struct sun4i_crtc *sun4i_crtc_init(struct drm_device *drm, 1); /* Set possible_crtcs to this crtc for overlay planes */ - for (i = 0; scrtc->layers[i]; i++) { + for (i = 0; planes[i]; i++) { uint32_t possible_crtcs = BIT(drm_crtc_index(&scrtc->crtc)); - struct sun4i_layer *layer = scrtc->layers[i]; + struct drm_plane *plane = planes[i]; - if (layer->plane.type == DRM_PLANE_TYPE_OVERLAY) - layer->plane.possible_crtcs = possible_crtcs; + if (plane->type == DRM_PLANE_TYPE_OVERLAY) + plane->possible_crtcs = possible_crtcs; } return scrtc; diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.h b/drivers/gpu/drm/sun4i/sun4i_crtc.h index 230cb8f0d601..4dae3508424a 100644 --- a/drivers/gpu/drm/sun4i/sun4i_crtc.h +++ b/drivers/gpu/drm/sun4i/sun4i_crtc.h @@ -19,7 +19,6 @@ struct sun4i_crtc { struct sun4i_backend *backend; struct sun4i_tcon *tcon; - struct sun4i_layer **layers; }; static inline struct sun4i_crtc *drm_crtc_to_sun4i_crtc(struct drm_crtc *crtc) diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c index f26bde5b9117..e1f03e1cc0ac 100644 --- a/drivers/gpu/drm/sun4i/sun4i_layer.c +++ b/drivers/gpu/drm/sun4i/sun4i_layer.c @@ -16,6 +16,7 @@ #include #include "sun4i_backend.h" +#include "sun4i_crtc.h" #include "sun4i_layer.h" struct sun4i_plane_desc { @@ -128,15 +129,16 @@ static struct sun4i_layer *sun4i_layer_init_one(struct drm_device *drm, return layer; } -struct sun4i_layer **sun4i_layers_init(struct drm_device *drm, - struct sun4i_backend *backend) +struct drm_plane **sun4i_layers_init(struct drm_device *drm, + struct sun4i_crtc *crtc) { - struct sun4i_layer **layers; + struct drm_plane **planes; + struct sun4i_backend *backend = crtc->backend; int i; - layers = devm_kcalloc(drm->dev, ARRAY_SIZE(sun4i_backend_planes) + 1, - sizeof(*layers), GFP_KERNEL); - if (!layers) + planes = devm_kcalloc(drm->dev, ARRAY_SIZE(sun4i_backend_planes) + 1, + sizeof(*planes), GFP_KERNEL); + if (!planes) return ERR_PTR(-ENOMEM); /* @@ -178,8 +180,8 @@ struct sun4i_layer **sun4i_layers_init(struct drm_device *drm, SUN4I_BACKEND_ATTCTL_REG0_LAY_PIPESEL(plane->pipe)); layer->id = i; - layers[i] = layer; + planes[i] = &layer->plane; }; - return layers; + return planes; } diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.h b/drivers/gpu/drm/sun4i/sun4i_layer.h index 4be1f0919df2..5ea5c994d6ea 100644 --- a/drivers/gpu/drm/sun4i/sun4i_layer.h +++ b/drivers/gpu/drm/sun4i/sun4i_layer.h @@ -26,7 +26,7 @@ plane_to_sun4i_layer(struct drm_plane *plane) return container_of(plane, struct sun4i_layer, plane); } -struct sun4i_layer **sun4i_layers_init(struct drm_device *drm, - struct sun4i_backend *backend); +struct drm_plane **sun4i_layers_init(struct drm_device *drm, + struct sun4i_crtc *crtc); #endif /* _SUN4I_LAYER_H_ */