From patchwork Tue Apr 27 04:49:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hsin-Yi Wang X-Patchwork-Id: 428049 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4D6A5C433B4 for ; Tue, 27 Apr 2021 04:49:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 24A51613BE for ; Tue, 27 Apr 2021 04:49:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229907AbhD0Euh (ORCPT ); Tue, 27 Apr 2021 00:50:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229587AbhD0Eug (ORCPT ); Tue, 27 Apr 2021 00:50:36 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99F20C061756 for ; Mon, 26 Apr 2021 21:49:53 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id e9so13206411plj.2 for ; Mon, 26 Apr 2021 21:49:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/Lr+RYT1FpY5hn8dUoDmn9NJW6LLDQqPEYPNdCKhdP4=; b=VdUxJXjo2nOjp0w6z/zqYtjSMDvjWwlIfeczk4YPGAu5wgjyzMPAH36sy/Gfp/qs2w Ad6f4TmpXIQh4JDQl+f8Y6W/upPK5b5OLUlFQk09ghjRBi1dZ8/ACLHx1TFbk5Q3N/sa ouKbPjwey9Ve7CEuht4fXbthLYYccjnaBQIdo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/Lr+RYT1FpY5hn8dUoDmn9NJW6LLDQqPEYPNdCKhdP4=; b=fPpmWSmR6oFM+dYc2FJIa6ux3ideZhTsYr4VDhLrNvSw24Yd5VDjNCeY+d42IJQ7E2 Tpo/KT0wJTt7ehNnJ3Kw0tvezUVD0lUZbvkvFYXry/VdKeqzu+42vjio+86Xv2XspuYB oWUHirD3Zj7d6LuYavZgSpukf+i6Ll36qLkLeGYsPLACZ2xdVAesCOQdoK97G64SVpRo m07uZ0pMEb8SYwkUn0s42xtyUTrzl0HtU6wX2UNUS47k6TH2mU9/rpSV78mesGLA8FYA pxQsrl/a13E4GUxZ/BomE2YTLhK0cel+6tNY3mva09MVLaJr8f35q9RiL8QlY6hmaqZ+ bCwg== X-Gm-Message-State: AOAM5315V5aEa5NmHuLnBSYKFHiwckzuYDk6fiTAFIFkb/bQfJUxKFy6 gRyEzdEYVLKXRx2zkck6IUDwLQ== X-Google-Smtp-Source: ABdhPJzI8SukeUv9tslKGuw8SfWxyaKGplUzCpgkZfwm4UwETueFRxso7WgNAW2bCSIJdPtvJIcTFw== X-Received: by 2002:a17:90a:a00e:: with SMTP id q14mr3000568pjp.70.1619498992938; Mon, 26 Apr 2021 21:49:52 -0700 (PDT) Received: from hsinyi-z840.tpe.corp.google.com ([2401:fa00:1:10:3984:c4f5:8612:6b3e]) by smtp.gmail.com with ESMTPSA id c125sm1151517pfa.74.2021.04.26.21.49.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Apr 2021 21:49:52 -0700 (PDT) From: Hsin-Yi Wang To: dri-devel@lists.freedesktop.org Cc: Chun-Kuang Hu , Sean Paul , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , linux-kernel@vger.kernel.org, Rob Herring , Matthias Brugger , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH v3 1/3] gpu: drm: separate panel orientation property creating and value setting Date: Tue, 27 Apr 2021 12:49:46 +0800 Message-Id: <20210427044948.12596-1-hsinyi@chromium.org> X-Mailer: git-send-email 2.31.1.498.g6c1eba8ee3d-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org drm_dev_register() sets connector->registration_state to DRM_CONNECTOR_REGISTERED and dev->registered to true. If drm_connector_set_panel_orientation() is first called after drm_dev_register(), it will fail several checks and results in following warning. Add a function to create panel orientation property and set default value to UNKNOWN, so drivers can call this function to init the property earlier , and let the panel set the real value later. [ 4.480976] ------------[ cut here ]------------ [ 4.485603] WARNING: CPU: 5 PID: 369 at drivers/gpu/drm/drm_mode_object.c:45 __drm_mode_object_add+0xb4/0xbc [ 4.609772] Call trace: [ 4.612208] __drm_mode_object_add+0xb4/0xbc [ 4.616466] drm_mode_object_add+0x20/0x2c [ 4.620552] drm_property_create+0xdc/0x174 [ 4.624723] drm_property_create_enum+0x34/0x98 [ 4.629241] drm_connector_set_panel_orientation+0x64/0xa0 [ 4.634716] boe_panel_get_modes+0x88/0xd8 [ 4.638802] drm_panel_get_modes+0x2c/0x48 [ 4.642887] panel_bridge_get_modes+0x1c/0x28 [ 4.647233] drm_bridge_connector_get_modes+0xa0/0xd4 [ 4.652273] drm_helper_probe_single_connector_modes+0x218/0x700 [ 4.658266] drm_mode_getconnector+0x1b4/0x45c [ 4.662699] drm_ioctl_kernel+0xac/0x128 [ 4.666611] drm_ioctl+0x268/0x410 [ 4.670002] drm_compat_ioctl+0xdc/0xf0 [ 4.673829] __arm64_compat_sys_ioctl+0xc8/0x100 [ 4.678436] el0_svc_common+0xf4/0x1c0 [ 4.682174] do_el0_svc_compat+0x28/0x3c [ 4.686088] el0_svc_compat+0x10/0x1c [ 4.689738] el0_sync_compat_handler+0xa8/0xcc [ 4.694171] el0_sync_compat+0x178/0x180 [ 4.698082] ---[ end trace b4f2db9d9c88610b ]--- [ 4.702721] ------------[ cut here ]------------ [ 4.707329] WARNING: CPU: 5 PID: 369 at drivers/gpu/drm/drm_mode_object.c:243 drm_object_attach_property+0x48/0xb8 [ 4.833830] Call trace: [ 4.836266] drm_object_attach_property+0x48/0xb8 [ 4.840958] drm_connector_set_panel_orientation+0x84/0xa0 [ 4.846432] boe_panel_get_modes+0x88/0xd8 [ 4.850516] drm_panel_get_modes+0x2c/0x48 [ 4.854600] panel_bridge_get_modes+0x1c/0x28 [ 4.858946] drm_bridge_connector_get_modes+0xa0/0xd4 [ 4.863984] drm_helper_probe_single_connector_modes+0x218/0x700 [ 4.869978] drm_mode_getconnector+0x1b4/0x45c [ 4.874410] drm_ioctl_kernel+0xac/0x128 [ 4.878320] drm_ioctl+0x268/0x410 [ 4.881711] drm_compat_ioctl+0xdc/0xf0 [ 4.885536] __arm64_compat_sys_ioctl+0xc8/0x100 [ 4.890142] el0_svc_common+0xf4/0x1c0 [ 4.893879] do_el0_svc_compat+0x28/0x3c [ 4.897791] el0_svc_compat+0x10/0x1c [ 4.901441] el0_sync_compat_handler+0xa8/0xcc [ 4.905873] el0_sync_compat+0x178/0x180 [ 4.909783] ---[ end trace b4f2db9d9c88610c ]--- Signed-off-by: Hsin-Yi Wang --- v3: create property in dsi driver and set value in panel. v2: create property in connector init https://patchwork.kernel.org/project/linux-mediatek/patch/20210426051848.2600890-1-hsinyi@chromium.org/ v1: set panel orientation in dsi driver https://patchwork.kernel.org/project/linux-mediatek/patch/20210409045314.3420733-1-hsinyi@chromium.org/ --- drivers/gpu/drm/drm_connector.c | 58 +++++++++++++++++++++++++-------- include/drm/drm_connector.h | 2 ++ 2 files changed, 47 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 7631f76e7f34..cda83314d7ad 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -1210,7 +1210,7 @@ static const struct drm_prop_enum_list dp_colorspaces[] = { * INPUT_PROP_DIRECT) will still map 1:1 to the actual LCD panel * coordinates, so if userspace rotates the picture to adjust for * the orientation it must also apply the same transformation to the - * touchscreen input coordinates. This property is initialized by calling + * touchscreen input coordinates. This property value is set by calling * drm_connector_set_panel_orientation() or * drm_connector_set_panel_orientation_with_quirk() * @@ -2173,8 +2173,8 @@ EXPORT_SYMBOL(drm_connector_set_vrr_capable_property); * @connector: connector for which to set the panel-orientation property. * @panel_orientation: drm_panel_orientation value to set * - * This function sets the connector's panel_orientation and attaches - * a "panel orientation" property to the connector. + * This function sets the connector's panel_orientation value. If the property + * doesn't exist, it will create one first. * * Calling this function on a connector where the panel_orientation has * already been set is a no-op (e.g. the orientation has been overridden with @@ -2206,18 +2206,16 @@ int drm_connector_set_panel_orientation( prop = dev->mode_config.panel_orientation_property; if (!prop) { - prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, - "panel orientation", - drm_panel_orientation_enum_list, - ARRAY_SIZE(drm_panel_orientation_enum_list)); - if (!prop) - return -ENOMEM; + int ret; - dev->mode_config.panel_orientation_property = prop; + ret = drm_connector_init_panel_orientation_property(connector); + if (ret) + return ret; + prop = dev->mode_config.panel_orientation_property; } - drm_object_attach_property(&connector->base, prop, - info->panel_orientation); + drm_object_property_set_value(&connector->base, prop, + info->panel_orientation); return 0; } EXPORT_SYMBOL(drm_connector_set_panel_orientation); @@ -2225,7 +2223,7 @@ EXPORT_SYMBOL(drm_connector_set_panel_orientation); /** * drm_connector_set_panel_orientation_with_quirk - * set the connector's panel_orientation after checking for quirks - * @connector: connector for which to init the panel-orientation property. + * @connector: connector for which to set the panel-orientation property. * @panel_orientation: drm_panel_orientation value to set * @width: width in pixels of the panel, used for panel quirk detection * @height: height in pixels of the panel, used for panel quirk detection @@ -2252,6 +2250,40 @@ int drm_connector_set_panel_orientation_with_quirk( } EXPORT_SYMBOL(drm_connector_set_panel_orientation_with_quirk); +/** + * drm_connector_init_panel_orientation_property - + * create the connector's panel orientation property + * + * This function attaches a "panel orientation" property to the connector + * and initializes its value to DRM_MODE_PANEL_ORIENTATION_UNKNOWN. + * + * The value of the property can be set by drm_connector_set_panel_orientation() + * or drm_connector_set_panel_orientation_with_quirk() later. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_connector_init_panel_orientation_property( + struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct drm_property *prop; + + prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, + "panel orientation", + drm_panel_orientation_enum_list, + ARRAY_SIZE(drm_panel_orientation_enum_list)); + if (!prop) + return -ENOMEM; + + dev->mode_config.panel_orientation_property = prop; + drm_object_attach_property(&connector->base, prop, + DRM_MODE_PANEL_ORIENTATION_UNKNOWN); + + return 0; +} +EXPORT_SYMBOL(drm_connector_init_panel_orientation_property); + int drm_connector_set_obj_prop(struct drm_mode_object *obj, struct drm_property *property, uint64_t value) diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 1922b278ffad..4396c1c4a5db 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1696,6 +1696,8 @@ int drm_connector_set_panel_orientation_with_quirk( struct drm_connector *connector, enum drm_panel_orientation panel_orientation, int width, int height); +int drm_connector_init_panel_orientation_property( + struct drm_connector *connector); int drm_connector_attach_max_bpc_property(struct drm_connector *connector, int min, int max);