From patchwork Wed Oct 3 03:41:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibby Hsieh X-Patchwork-Id: 10624287 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 430C615E8 for ; Wed, 3 Oct 2018 03:49:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 30A2B285E0 for ; Wed, 3 Oct 2018 03:49:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 22907285E2; Wed, 3 Oct 2018 03:49:53 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,UNPARSEABLE_RELAY autolearn=unavailable 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 C495D285E0 for ; Wed, 3 Oct 2018 03:49:52 +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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=mZJGsgkhbnEDzLrWx8PobEPhrZryWmRktlP5+UktEg4=; b=XtrGbulFeydnPG hKrEuCpfBDgwvcLJsVBxJJHBIV7u9Z41da6Buf/6YSfB0+95tb9KAISZqiN0JCoUAhmwg0QXx8M4L Jw0W7mNnTOVZ3ljLZhoDPJeUr6P0i2623oGp2anTzgbwnStrY0Re21Zeoa1t9cSpc5x3g5Dsa6s31 QSRG11lLV+nFIwEDxZWtttPzVPfKtlCGjbSVdtM1Ueg+z8rS7VKIssLoNT+ZcEp/fPrCzlta7Ce+R WCx5Y6JIKROor7N0Vkf8W3hMTgFz6uz1E+5VpUQfL5Kc7AqmGVP8qmMiP70SMm61WZVXZI+rYlvt/ 8daTWn8qxQE35I9fER8Q==; 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 1g7YAN-0002GR-2X; Wed, 03 Oct 2018 03:49:39 +0000 Received: from [210.61.82.184] (helo=mailgw02.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g7Y3Q-0006RL-6X; Wed, 03 Oct 2018 03:42:41 +0000 X-UUID: 7a8aa05c9fa845d48327ce11ba98da1f-20181003 X-UUID: 7a8aa05c9fa845d48327ce11ba98da1f-20181003 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1439521937; Wed, 03 Oct 2018 11:41:57 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 3 Oct 2018 11:41:53 +0800 Received: from mtkslt209.mediatek.inc (10.21.15.96) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Wed, 3 Oct 2018 11:41:53 +0800 From: Bibby Hsieh To: David Airlie , Matthias Brugger , Daniel Vetter , , Subject: [PATCH v5 05/11] drm/mediatek: convert dpi driver to use drm_of_find_panel_or_bridge Date: Wed, 3 Oct 2018 11:41:45 +0800 Message-ID: <20181003034151.31452-6-bibby.hsieh@mediatek.com> X-Mailer: git-send-email 2.12.5.2.gbdf23ab In-Reply-To: <20181003034151.31452-1-bibby.hsieh@mediatek.com> References: <20181003034151.31452-1-bibby.hsieh@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 19F568C8EA8FEF1B1B1BB55075C9502826382D6717C86DD71F1DFEA12E36D26E2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181002_204228_380146_792E35B1 X-CRM114-Status: GOOD ( 12.81 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bibby Hsieh , chunhui dai , linux-kernel@vger.kernel.org, Cawa Cheng , Daniel Kurtz , Mao Huang , CK Hu , Thierry Reding , Philipp Zabel , YT Shen , Yingjoe Chen , Sascha Hauer , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: chunhui dai Convert dpi driver to use drm_of_find_panel_or_bridge. This changes some error messages to debug messages (in the graph core). Graph connections are often "no connects" depending on the particular board, so we want to avoid spurious messages. Plus the kernel is not a DT validator. related links: [1] https://lkml.org/lkml/2017/2/3/716 [2] https://lkml.org/lkml/2017/2/3/719 Signed-off-by: chunhui dai Reviewed-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_dpi.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 0dbe9345fa2e..08915e1765f8 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -668,7 +669,6 @@ static int mtk_dpi_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct mtk_dpi *dpi; struct resource *mem; - struct device_node *bridge_node; int comp_id; int ret; @@ -714,16 +714,12 @@ static int mtk_dpi_probe(struct platform_device *pdev) return -EINVAL; } - bridge_node = of_graph_get_remote_node(dev->of_node, 0, 0); - if (!bridge_node) - return -ENODEV; - - dev_info(dev, "Found bridge node: %pOF\n", bridge_node); + ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, + NULL, &dpi->bridge); + if (ret) + return ret; - dpi->bridge = of_drm_find_bridge(bridge_node); - of_node_put(bridge_node); - if (!dpi->bridge) - return -EPROBE_DEFER; + dev_info(dev, "Found bridge node: %pOF\n", dpi->bridge->of_node); comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DPI); if (comp_id < 0) {