From patchwork Thu Dec 2 22:27:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 12653611 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 860C0C433EF for ; Thu, 2 Dec 2021 22:28:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 99E776FC31; Thu, 2 Dec 2021 22:27:43 +0000 (UTC) Received: from mail-pg1-x52f.google.com (mail-pg1-x52f.google.com [IPv6:2607:f8b0:4864:20::52f]) by gabe.freedesktop.org (Postfix) with ESMTPS id D5BB66FBF3 for ; Thu, 2 Dec 2021 22:27:41 +0000 (UTC) Received: by mail-pg1-x52f.google.com with SMTP id q16so1128771pgq.10 for ; Thu, 02 Dec 2021 14:27:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=pT87OQ3egRwLpYLDnQ//DolOVTqHrwpGRKkmvVo/d+g=; b=XTbi4aHkbtNGDS7j3bk/TaTjb/qaeMqit0a8uTadCumr1MKDxtoauG1mCIwIPKQ8XS Dn2yKv1Gx/uoxx2EBmq0nBjU+M+6KJuQG2sm6bL9kHKH2MRKkUrwpKsWZYlttmASv0oT t6BdBty57VcoUZiABSAuPxOAMQFZBsibnbQ/k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=pT87OQ3egRwLpYLDnQ//DolOVTqHrwpGRKkmvVo/d+g=; b=hB8PzcRqF74d5fKXE42bOr8dvxgeBcR/f1flxqHNbMBigP4k3R9Q+yU5iCG17mAhIC huMNw+os3QOVT8nfo5At1V376fkadPZJnouWkdCP/mRHm/vAKpxGZmAHWzC1lnp0ECa0 8ZR+Xrqr6aWgvyuFeq+iRiqstqkvmc30XibA8d0ECS1yGJhUpQrpxID0fdHM9iMcdK1K 2ZQm27KDBUZ8IY44B9aahCtM6uzvpqEu485XNovbnBHPyT67W0QjjjgGgXEcAaueI+dt dCLofLpkLWIRlAaDPOpNwdU5NZY3i6hut4Vrs3AXdNyLKYUIL62UkPBbFy5b2j1WXuTE iOLQ== X-Gm-Message-State: AOAM533WgxU3AKMuVTlSeYbE7rVHBR/vvfH2KZuaxodj1on06W5r9c6z JelI3sdXAVQaUARd5xnUMgE9mA== X-Google-Smtp-Source: ABdhPJzOYaMldd9Pb2GkPUyu2nNVp6KEkzwLQ/LFvfUFYAYdtoCKXeDzVhnicKPYB7tDFx/fdclhpQ== X-Received: by 2002:a63:1446:: with SMTP id 6mr1569849pgu.150.1638484061394; Thu, 02 Dec 2021 14:27:41 -0800 (PST) Received: from smtp.gmail.com ([2620:15c:202:201:f4f2:1b7e:5aea:bf3c]) by smtp.gmail.com with ESMTPSA id q9sm836934pfj.9.2021.12.02.14.27.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 14:27:40 -0800 (PST) From: Stephen Boyd To: Greg Kroah-Hartman Subject: [PATCH v4 06/34] drm/of: Add a drm_of_aggregate_probe() API Date: Thu, 2 Dec 2021 14:27:04 -0800 Message-Id: <20211202222732.2453851-7-swboyd@chromium.org> X-Mailer: git-send-email 2.34.0.384.gca35af8252-goog In-Reply-To: <20211202222732.2453851-1-swboyd@chromium.org> References: <20211202222732.2453851-1-swboyd@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Saravana Kannan , "Rafael J. Wysocki" , Daniel Vetter , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Laurent Pinchart , linux-arm-msm@vger.kernel.org, Russell King , freedreno@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Similar to drm_of_component_probe() but using the new API that registers a driver instead of an ops struct. This allows us to migrate the users of drm_of_component_probe() to the new way of doing things. Cc: Laurent Pinchart Cc: Daniel Vetter Cc: "Rafael J. Wysocki" Cc: Rob Clark Cc: Russell King Cc: Saravana Kannan Signed-off-by: Stephen Boyd --- drivers/gpu/drm/drm_of.c | 85 +++++++++++++++++++++++++++++++--------- include/drm/drm_of.h | 12 ++++++ 2 files changed, 78 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 37c34146eea8..008d6b7d2283 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -99,30 +99,18 @@ void drm_of_component_match_add(struct device *master, } EXPORT_SYMBOL_GPL(drm_of_component_match_add); -/** - * drm_of_component_probe - Generic probe function for a component based master - * @dev: master device containing the OF node - * @compare_of: compare function used for matching components - * @m_ops: component master ops to be used - * - * Parse the platform device OF node and bind all the components associated - * with the master. Interface ports are added before the encoders in order to - * satisfy their .bind requirements - * See Documentation/devicetree/bindings/graph.txt for the bindings. - * - * Returns zero if successful, or one of the standard error codes if it fails. - */ -int drm_of_component_probe(struct device *dev, +static int _drm_of_component_probe(struct device *dev, int (*compare_of)(struct device *, void *), - const struct component_master_ops *m_ops) + struct component_match **matchptr) { struct device_node *ep, *port, *remote; - struct component_match *match = NULL; int i; if (!dev->of_node) return -EINVAL; + *matchptr = NULL; + /* * Bind the crtc's ports first, so that drm_of_find_possible_crtcs() * called from encoder's .bind callbacks works as expected @@ -133,7 +121,7 @@ int drm_of_component_probe(struct device *dev, break; if (of_device_is_available(port->parent)) - drm_of_component_match_add(dev, &match, compare_of, + drm_of_component_match_add(dev, matchptr, compare_of, port); of_node_put(port); @@ -144,7 +132,7 @@ int drm_of_component_probe(struct device *dev, return -ENODEV; } - if (!match) { + if (!*matchptr) { dev_err(dev, "no available port\n"); return -ENODEV; } @@ -174,17 +162,76 @@ int drm_of_component_probe(struct device *dev, continue; } - drm_of_component_match_add(dev, &match, compare_of, + drm_of_component_match_add(dev, matchptr, compare_of, remote); of_node_put(remote); } of_node_put(port); } + return 0; +} + +/** + * drm_of_component_probe - Generic probe function for a component based master + * @dev: master device containing the OF node + * @compare_of: compare function used for matching components + * @m_ops: component master ops to be used + * + * Parse the platform device OF node and bind all the components associated + * with the master. Interface ports are added before the encoders in order to + * satisfy their .bind requirements + * See Documentation/devicetree/bindings/graph.txt for the bindings. + * + * Deprecated: Use drm_of_aggregate_probe() instead. + * + * Returns zero if successful, or one of the standard error codes if it fails. + */ +int drm_of_component_probe(struct device *dev, + int (*compare_of)(struct device *, void *), + const struct component_master_ops *m_ops) +{ + + struct component_match *match; + int ret; + + ret = _drm_of_component_probe(dev, compare_of, &match); + if (ret) + return ret; + return component_master_add_with_match(dev, m_ops, match); } EXPORT_SYMBOL(drm_of_component_probe); + +/** + * drm_of_aggregate_probe - Generic probe function for a component based aggregate host + * @dev: device containing the OF node + * @compare_of: compare function used for matching components + * @adrv: aggregate driver to be used + * + * Parse the platform device OF node and bind all the components associated + * with the aggregate device. Interface ports are added before the encoders in + * order to satisfy their .bind_component requirements + * See Documentation/devicetree/bindings/graph.txt for the bindings. + * + * Returns zero if successful, or one of the standard error codes if it fails. + */ +int drm_of_aggregate_probe(struct device *dev, + int (*compare_of)(struct device *, void *), + struct aggregate_driver *adrv) +{ + struct component_match *match; + int ret; + + ret = _drm_of_component_probe(dev, compare_of, &match); + if (ret) + return ret; + + return component_aggregate_register(dev, adrv, match); +} +EXPORT_SYMBOL(drm_of_aggregate_probe); + /* * drm_of_encoder_active_endpoint - return the active encoder endpoint * @node: device tree node containing encoder input ports diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h index b9b093add92e..9d35a141f888 100644 --- a/include/drm/drm_of.h +++ b/include/drm/drm_of.h @@ -7,6 +7,7 @@ #include #endif +struct aggregate_driver; struct component_master_ops; struct component_match; struct device; @@ -40,6 +41,9 @@ void drm_of_component_match_add(struct device *master, int drm_of_component_probe(struct device *dev, int (*compare_of)(struct device *, void *), const struct component_master_ops *m_ops); +int drm_of_aggregate_probe(struct device *dev, + int (*compare_of)(struct device *, void *), + struct aggregate_driver *adrv); int drm_of_encoder_active_endpoint(struct device_node *node, struct drm_encoder *encoder, struct of_endpoint *endpoint); @@ -78,6 +82,14 @@ drm_of_component_probe(struct device *dev, return -EINVAL; } +static inline int +drm_of_aggregate_probe(struct device *dev, + int (*compare_of)(struct device *, void *), + struct aggregate_driver *adrv) +{ + return -EINVAL; +} + static inline int drm_of_encoder_active_endpoint(struct device_node *node, struct drm_encoder *encoder, struct of_endpoint *endpoint)