From patchwork Wed Aug 29 03:12:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?6buE5a626ZKX?= X-Patchwork-Id: 10579511 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 1A3F7174C for ; Wed, 29 Aug 2018 03:13:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 096382A69C for ; Wed, 29 Aug 2018 03:13:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F0D052AFB2; Wed, 29 Aug 2018 03:13:21 +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=1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,RCVD_IN_SBL_CSS, RCVD_IN_SORBS_WEB autolearn=no version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 45F072A69C for ; Wed, 29 Aug 2018 03:13:21 +0000 (UTC) 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=GVClF2Z/9+gPq3yHshsp4KnKL27I3HDmhFw7agSwSVE=; b=MyW714Xri3SQPl57ODJ9QXkbAB xOjnVL9CrLv4uR6Za1oE483L9FWfd/oqapY9zeZFqWvW1CuJOpE3qUis2dOOGw803mB1IIp0Ywvl6 h1fiGU0xmsG+/T67p8RKeKpYpfQbjhnGHVF6iOyNetxZtQsS1FXKmX9OPqOEuvfKgW8b6pvmbAZ73 VoVzIThfx+HMp6X7F+0G/P9RKRqggrK2siJWPEgvuMwY7oZ2IZ76iIODHDAkmesIN8tpGKCvWSwsx a6A+43up2bz6lnNaLa94H6WZT1YrXV2m4f40/fbnlhe6VjWFMVVLcSKGocn12ix0MDLtBR/o3vzt5 reT7cYXw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fuqv0-0005zs-TV; Wed, 29 Aug 2018 03:13:18 +0000 Received: from regular1.263xmail.com ([211.150.99.134]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fuquw-0005uI-In; Wed, 29 Aug 2018 03:13:16 +0000 Received: from hjc?rock-chips.com (unknown [192.168.167.158]) by regular1.263xmail.com (Postfix) with ESMTP id A664B375; Wed, 29 Aug 2018 11:13:02 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id A391D393; Wed, 29 Aug 2018 11:13:00 +0800 (CST) X-RL-SENDER: hjc@rock-chips.com X-FST-TO: hjc@rock-chips.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: hjc@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: hjc@rock-chips.com X-DNS-TYPE: 0 Received: from unknown (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith SMTP id 31056FQQ2PI; Wed, 29 Aug 2018 11:13:01 +0800 (CST) From: Sandy Huang To: hjc@rock-chips.com, heiko@sntech.de, seanpaul@chromium.org, David Airlie Subject: [PATCH v7 2/3] drm/rockchip: Add support for Rockchip Soc RGB output interface Date: Wed, 29 Aug 2018 11:12:43 +0800 Message-Id: <1535512364-80764-3-git-send-email-hjc@rock-chips.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1535512364-80764-1-git-send-email-hjc@rock-chips.com> References: <1535512364-80764-1-git-send-email-hjc@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180828_201314_985292_0F96C296 X-CRM114-Status: GOOD ( 27.90 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Some Rockchip CRTCs, like rv1108 and px30, can directly output parallel and serial RGB data to panel or conversion chip. So add a feature-bit for vops to mark the ability for these direct outputs and add an internal encoder in that case, that can attach to bridge chipsor panels. Signed-off-by: Sandy Huang Signed-off-by: Heiko Stuebner Reviewed-by: Sean Paul Reviewed-by: Mark Yao --- Changes in v7: 1. forget to delete rockchip_rgb_driver and delete it. Changes in v6: 1. Update according to Heiko Stuebner' implemention, rgb output is part of vop's feature, should not register as a independent driver. Changes in v5: 1. add SPDX-License-Identifier tag Changes in v4: 1. add support px30; Changes in v3: 1. update for rgb-mode move to panel node. Changes in v2: 1. add error log when probe failed; 2. update name_to_output_mode() according to sean's suggest; 3. Fix uninitialized use of ret. drivers/gpu/drm/rockchip/Kconfig | 11 ++ drivers/gpu/drm/rockchip/Makefile | 1 + drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 16 +++ drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 1 + drivers/gpu/drm/rockchip/rockchip_rgb.c | 173 ++++++++++++++++++++++++++++ drivers/gpu/drm/rockchip/rockchip_rgb.h | 20 ++++ 6 files changed, 222 insertions(+) create mode 100644 drivers/gpu/drm/rockchip/rockchip_rgb.c create mode 100644 drivers/gpu/drm/rockchip/rockchip_rgb.h diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig index 0ccc762..e88eb71 100644 --- a/drivers/gpu/drm/rockchip/Kconfig +++ b/drivers/gpu/drm/rockchip/Kconfig @@ -8,6 +8,7 @@ config DRM_ROCKCHIP select DRM_ANALOGIX_DP if ROCKCHIP_ANALOGIX_DP select DRM_DW_HDMI if ROCKCHIP_DW_HDMI select DRM_MIPI_DSI if ROCKCHIP_DW_MIPI_DSI + select DRM_RGB if ROCKCHIP_RGB select SND_SOC_HDMI_CODEC if ROCKCHIP_CDN_DP && SND_SOC help Choose this option if you have a Rockchip soc chipset. @@ -66,4 +67,14 @@ config ROCKCHIP_LVDS Rockchip rk3288 SoC has LVDS TX Controller can be used, and it support LVDS, rgb, dual LVDS output mode. say Y to enable its driver. + +config ROCKCHIP_RGB + bool "Rockchip RGB support" + depends on DRM_ROCKCHIP + depends on PINCTRL + help + Choose this option to enable support for Rockchip RGB output. + Some Rockchip CRTCs, like rv1108, can directly output parallel + and serial RGB format to panel or connect to a conversion chip. + say Y to enable its driver. endif diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile index a314e21..868263f 100644 --- a/drivers/gpu/drm/rockchip/Makefile +++ b/drivers/gpu/drm/rockchip/Makefile @@ -14,5 +14,6 @@ rockchipdrm-$(CONFIG_ROCKCHIP_DW_HDMI) += dw_hdmi-rockchip.o rockchipdrm-$(CONFIG_ROCKCHIP_DW_MIPI_DSI) += dw-mipi-dsi.o rockchipdrm-$(CONFIG_ROCKCHIP_INNO_HDMI) += inno_hdmi.o rockchipdrm-$(CONFIG_ROCKCHIP_LVDS) += rockchip_lvds.o +rockchipdrm-$(CONFIG_ROCKCHIP_RGB) += rockchip_rgb.o obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 38f8cae..867b654 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -41,6 +41,7 @@ #include "rockchip_drm_fb.h" #include "rockchip_drm_psr.h" #include "rockchip_drm_vop.h" +#include "rockchip_rgb.h" #define VOP_WIN_SET(x, win, name, v) \ vop_reg_set(vop, &win->phy->name, win->base, ~0, v, #name) @@ -92,6 +93,7 @@ struct vop_win { struct vop *vop; }; +struct rockchip_rgb; struct vop { struct drm_crtc crtc; struct device *dev; @@ -135,6 +137,9 @@ struct vop { /* vop dclk reset */ struct reset_control *dclk_rst; + /* optional internal rgb encoder */ + struct rockchip_rgb *rgb; + struct vop_win win[]; }; @@ -1638,6 +1643,14 @@ static int vop_bind(struct device *dev, struct device *master, void *data) if (ret) goto err_disable_pm_runtime; + if (vop->data->feature & VOP_FEATURE_INTERNAL_RGB) { + vop->rgb = rockchip_rgb_init(dev, &vop->crtc, vop->drm_dev); + if (IS_ERR(vop->rgb)) { + ret = PTR_ERR(vop->rgb); + goto err_disable_pm_runtime; + } + } + return 0; err_disable_pm_runtime: @@ -1650,6 +1663,9 @@ static void vop_unbind(struct device *dev, struct device *master, void *data) { struct vop *vop = dev_get_drvdata(dev); + if (vop->rgb) + rockchip_rgb_fini(vop->rgb); + pm_runtime_disable(dev); vop_destroy_crtc(vop); diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h index fcb9104..fd5765d 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h @@ -162,6 +162,7 @@ struct vop_data { unsigned int win_size; #define VOP_FEATURE_OUTPUT_RGB10 BIT(0) +#define VOP_FEATURE_INTERNAL_RGB BIT(1) u64 feature; }; diff --git a/drivers/gpu/drm/rockchip/rockchip_rgb.c b/drivers/gpu/drm/rockchip/rockchip_rgb.c new file mode 100644 index 0000000..e8d3215 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_rgb.c @@ -0,0 +1,173 @@ +//SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author: + * Sandy Huang + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "rockchip_drm_drv.h" +#include "rockchip_drm_vop.h" + +#define encoder_to_rgb(c) container_of(c, struct rockchip_rgb, encoder) + +struct rockchip_rgb { + struct device *dev; + struct drm_device *drm_dev; + struct drm_bridge *bridge; + struct drm_encoder encoder; + int output_mode; +}; + +static int +rockchip_rgb_encoder_atomic_check(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state); + struct drm_connector *connector = conn_state->connector; + struct drm_display_info *info = &connector->display_info; + u32 bus_format; + + if (info->num_bus_formats) + bus_format = info->bus_formats[0]; + else + bus_format = MEDIA_BUS_FMT_RGB888_1X24; + + switch (bus_format) { + case MEDIA_BUS_FMT_RGB666_1X18: + s->output_mode = ROCKCHIP_OUT_MODE_P666; + break; + case MEDIA_BUS_FMT_RGB565_1X16: + s->output_mode = ROCKCHIP_OUT_MODE_P565; + break; + case MEDIA_BUS_FMT_RGB888_1X24: + case MEDIA_BUS_FMT_RGB666_1X24_CPADHI: + default: + s->output_mode = ROCKCHIP_OUT_MODE_P888; + break; + } + + s->output_type = DRM_MODE_CONNECTOR_LVDS; + + return 0; +} + +static const +struct drm_encoder_helper_funcs rockchip_rgb_encoder_helper_funcs = { + .atomic_check = rockchip_rgb_encoder_atomic_check, +}; + +static const struct drm_encoder_funcs rockchip_rgb_encoder_funcs = { + .destroy = drm_encoder_cleanup, +}; + +struct rockchip_rgb *rockchip_rgb_init(struct device *dev, + struct drm_crtc *crtc, + struct drm_device *drm_dev) +{ + struct rockchip_rgb *rgb; + struct drm_encoder *encoder; + struct device_node *port, *endpoint; + u32 endpoint_id; + int ret = 0, child_count = 0; + struct drm_panel *panel; + struct drm_bridge *bridge; + + rgb = devm_kzalloc(dev, sizeof(*rgb), GFP_KERNEL); + if (!rgb) + return ERR_PTR(-ENOMEM); + + rgb->dev = dev; + rgb->drm_dev = drm_dev; + + port = of_graph_get_port_by_id(dev->of_node, 0); + if (!port) + return ERR_PTR(-EINVAL); + + for_each_child_of_node(port, endpoint) { + if (of_property_read_u32(endpoint, "reg", &endpoint_id)) + endpoint_id = 0; + + if (rockchip_drm_endpoint_is_subdriver(endpoint)) + continue; + + child_count++; + ret = drm_of_find_panel_or_bridge(dev->of_node, 0, endpoint_id, + &panel, &bridge); + if (!ret) + break; + } + + of_node_put(port); + + /* if the rgb output is not connected to anything, just return */ + if (!child_count) + return NULL; + + if (ret < 0) { + if (ret != -EPROBE_DEFER) + DRM_DEV_ERROR(dev, "failed to find panel or bridge %d\n", ret); + return ERR_PTR(ret); + } + + encoder = &rgb->encoder; + encoder->possible_crtcs = drm_crtc_mask(crtc); + + ret = drm_encoder_init(drm_dev, encoder, &rockchip_rgb_encoder_funcs, + DRM_MODE_ENCODER_NONE, NULL); + if (ret < 0) { + DRM_DEV_ERROR(drm_dev->dev, + "failed to initialize encoder: %d\n", ret); + return ERR_PTR(ret); + } + + drm_encoder_helper_add(encoder, &rockchip_rgb_encoder_helper_funcs); + + if (panel) { + bridge = drm_panel_bridge_add(panel, DRM_MODE_CONNECTOR_LVDS); + if (IS_ERR(bridge)) + return ERR_CAST(bridge); + } + + rgb->bridge = bridge; + + ret = drm_bridge_attach(encoder, rgb->bridge, NULL); + if (ret) { + DRM_DEV_ERROR(drm_dev->dev, + "failed to attach bridge: %d\n", ret); + goto err_free_encoder; + } + + return rgb; + +err_free_encoder: + drm_encoder_cleanup(encoder); + return ERR_PTR(ret); +} +EXPORT_SYMBOL_GPL(rockchip_rgb_init); + +void rockchip_rgb_fini(struct rockchip_rgb *rgb) +{ + drm_panel_bridge_remove(rgb->bridge); + drm_encoder_cleanup(&rgb->encoder); +} +EXPORT_SYMBOL_GPL(rockchip_rgb_fini); diff --git a/drivers/gpu/drm/rockchip/rockchip_rgb.h b/drivers/gpu/drm/rockchip/rockchip_rgb.h new file mode 100644 index 0000000..c712a67 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_rgb.h @@ -0,0 +1,20 @@ +//SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author: + * Sandy Huang + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +struct rockchip_rgb *rockchip_rgb_init(struct device *dev, + struct drm_crtc *crtc, + struct drm_device *drm_dev); +void rockchip_rgb_fini(struct rockchip_rgb *rgb);