From patchwork Thu Oct 24 06:13:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 13848343 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 13120D0BB5E for ; Thu, 24 Oct 2024 06:17:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:Cc:To:From:Subject:References:Mime-Version:Message-Id: In-Reply-To:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ULy+zyN1BivKyLwzuPRCl/8UJCnpTGDPYrNtb9eDcL4=; b=zO7u+DlOeCbPB1XgeNbybFHTdd IKssTl/sEQ7mGkqNNPlG4vDN/lVoiN89wRusGx+p3RiLVLOS91qVBYqKsrM0+6LFspVpERWuE3sOT NgrGJU+XmkTRNzjyS80AfEVDVrcUDZDNIv3lr5h99/ZCrgChaN6+ofpcKew6GHCePfqCs058Qd7M1 qhK839VvLWWJbQe7AEi1oVsd2qESjdQ/HBXWLbgXpQFIZOYlWNtD53gH8fpaGJ6Ghh9WZweQpw6dZ u6NQ1V9aONhZwx1JjtFVEgkXleU6rb8cn2THGnhPTCQvdR/xQ+JKQGFRpH77s/SUjfNlQo0RfOm5E 6RtvBLvQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t3r9f-0000000Gt9X-0riA; Thu, 24 Oct 2024 06:17:07 +0000 Received: from mail-yw1-x1149.google.com ([2607:f8b0:4864:20::1149]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t3r6b-0000000GsRb-2Ysa for linux-arm-kernel@lists.infradead.org; Thu, 24 Oct 2024 06:14:00 +0000 Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-6e3d660a1afso10478327b3.0 for ; Wed, 23 Oct 2024 23:13:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1729750436; x=1730355236; darn=lists.infradead.org; h=content-transfer-encoding:cc:to:from:subject:references :mime-version:message-id:in-reply-to:date:from:to:cc:subject:date :message-id:reply-to; bh=ULy+zyN1BivKyLwzuPRCl/8UJCnpTGDPYrNtb9eDcL4=; b=S5iA2AnUVrc0O90c8bMEmAoqaAOjPdur9H2qrQVSoQPNOjbEexy5sCUCwqc4eTOhpe ZPFy+svQphhU7lltTDVlvc4HvNm0eidlgMKQ4ZAct7ZctrPEuWQmZZBYRf4yYtXwlcVD LdQMCkMY7lJdn0Rbc2AS+hD9mA8TEodr0VZJgqru62zChy1s2Fez42w1A8Tt8mEZElmr 00Exta0e/vWfsdejyxKdiKHi56O4056WRN6E35SveeXlOpt0j14n2bdYpyaGnw8abDJm ykppa4LlGcGdd3J2Wt8do63Q9hwHTv2hnNrjcbU5hHshsGaJzQMWfKz2kIDfcQ3+gu5y HeWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729750436; x=1730355236; h=content-transfer-encoding:cc:to:from:subject:references :mime-version:message-id:in-reply-to:date:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=ULy+zyN1BivKyLwzuPRCl/8UJCnpTGDPYrNtb9eDcL4=; b=fjErAy2ROviI0OzMEgPTRcFJ+WOaBNp2v0txaar8mv/BXgmuWIgHYXmbD9tuQONUGj 1JAm/8/6Lc3e36zEA8dYM9DKSFaag2o5ApxdKJRBWqmIDt0T2tIZ6EL5yxYyxC9sHxFd AYXgTkZ8VkGyiVNGI97MXssDswk1YIyTUJybpYcx1rGDQ+08EjoAijaCM0a+p4l8qgDx xZcYXFsLozucgPszzQBeTIvkaSQ7kfer18LyhEm7pm+mCb29ole8bjJeXK3VxeShCx1M YKU0KULIcqdDLJ2uod3VPKklG6prvY3/AfXLo9CI77//WKv5+cVoK+QhwTinKrN+ifM1 YZjw== X-Forwarded-Encrypted: i=1; AJvYcCVxKNBKdmfUCfEPqvMAWp5HZVwwz94hUicxT9gBfynEgf+AjljqVZ78uObxRfsOsm8iBpnYew0Uv08+grOjqxxU@lists.infradead.org X-Gm-Message-State: AOJu0Yws8V/DW0PUkY1cvlGPQvcocywsbwvzKQZwkKD2Jmd+ICsy0DL4 y2SuhYF+L5v6XvCn2YNnM0RDfO4AU5itiNtoazBM7ktZtQ4QyS91hsdz3zL0XqgTtUxjAmbWW6c NN/5/yxFYd2alGA== X-Google-Smtp-Source: AGHT+IHCEMkQ2RfyYdNtjaLmn7Q1IV6vv3d2IoDuURVXiH0KtdFNDJTv0BNk9TxANKxuJUTxCoodn7NIA1qQz7g= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:965e:f81d:c9fb:b352]) (user=saravanak job=sendgmr) by 2002:a05:690c:6811:b0:6e3:19d7:382a with SMTP id 00721157ae682-6e85813d7f5mr589267b3.1.1729750435897; Wed, 23 Oct 2024 23:13:55 -0700 (PDT) Date: Wed, 23 Oct 2024 23:13:42 -0700 In-Reply-To: <20241024061347.1771063-1-saravanak@google.com> Message-Id: <20241024061347.1771063-2-saravanak@google.com> Mime-Version: 1.0 References: <20241024061347.1771063-1-saravanak@google.com> X-Mailer: git-send-email 2.47.0.105.g07ac214952-goog Subject: [PATCH 1/3] drm: display: Set fwnode for aux bus devices From: Saravana Kannan To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , JC Kuo , Vinod Koul , Kishon Vijay Abraham I , Thierry Reding , Jonathan Hunter , Matthias Brugger , AngeloGioacchino Del Regno Cc: Saravana Kannan , " =?utf-8?b?TsOtY29sYXMgRi4g?= =?utf-8?b?Ui4gQS4gUHJhZG8=?= " , kernel-team@android.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-phy@lists.infradead.org, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241023_231357_681000_5499548B X-CRM114-Status: GOOD ( 12.67 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org fwnode needs to be set for a device for fw_devlink to be able to track/enforce its dependencies correctly. Without this, you'll see error messages like this when the supplier has probed and tries to make sure all its fwnode consumers are linked to it using device links: mediatek-drm-dp 1c500000.edp-tx: Failed to create device link (0x180) with backlight-lcd0 Reported-by: "Nícolas F. R. A. Prado" Closes: https://lore.kernel.org/all/7b995947-4540-4b17-872e-e107adca4598@notapiano/ Tested-by: "Nícolas F. R. A. Prado" Signed-off-by: Saravana Kannan Reviewed-by: Thierry Reding Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/display/drm_dp_aux_bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/display/drm_dp_aux_bus.c b/drivers/gpu/drm/display/drm_dp_aux_bus.c index d810529ebfb6..ec7eac6b595f 100644 --- a/drivers/gpu/drm/display/drm_dp_aux_bus.c +++ b/drivers/gpu/drm/display/drm_dp_aux_bus.c @@ -292,7 +292,7 @@ int of_dp_aux_populate_bus(struct drm_dp_aux *aux, aux_ep->dev.parent = aux->dev; aux_ep->dev.bus = &dp_aux_bus_type; aux_ep->dev.type = &dp_aux_device_type_type; - aux_ep->dev.of_node = of_node_get(np); + device_set_node(&aux_ep->dev, of_fwnode_handle(of_node_get(np))); dev_set_name(&aux_ep->dev, "aux-%s", dev_name(aux->dev)); ret = device_register(&aux_ep->dev);