From patchwork Fri Sep 16 18:17:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 608182 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B40C7ECAAA1 for ; Fri, 16 Sep 2022 18:18:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229507AbiIPSS2 (ORCPT ); Fri, 16 Sep 2022 14:18:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57602 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229473AbiIPSS1 (ORCPT ); Fri, 16 Sep 2022 14:18:27 -0400 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CFEF4B6D27 for ; Fri, 16 Sep 2022 11:18:26 -0700 (PDT) Received: by mail-pj1-x1029.google.com with SMTP id ge9so10308592pjb.1 for ; Fri, 16 Sep 2022 11:18:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=evpdRiLLPj8Lu/GCT1crgCmnHzo/7eQnkgWkH42QQ/k=; b=W1QEp6HF06COuxtcDMZcOJJyNxZHua+I7KuRB2xlQCsegc3plvtw/N5BobrQviA9U9 NHfyTT6LvM/CEOOkFDNGDUr5rh7HX17h511Y6brIhx4dLSc9QEAgw+vd/BJq623harcg ucRXUwwyh/EgduyrqYlShxfPodb30TiQ4GWcM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date; bh=evpdRiLLPj8Lu/GCT1crgCmnHzo/7eQnkgWkH42QQ/k=; b=eWaThu5yKtVxXLwZgStz+JW7k8wor2q89JFv/yUF5E2eER9uTmsGA1svQrGfcXKZgs ke6yBCmvfEv25snXl89ZRpiJcy9hjKkwRLVbpBwBrR2ODGQ6PZdzrIk9m8kM9xPlsxEI lT7nhUF3TbwO2bcJ6HZ42B9UWJ7Tas/wsgSlrlmO48pzHrRlnp0pDvIqsSj+5DMiOhm6 bfz1H5YbVVB3qtKIaRu37fOmIscTreqIP0X2drrB5RD6SINW9VIGtw770zkh6whSSmWN wcCyporBXgqOEj1cyJWR+wbV4KFkAUwGZU9uSmKwB985TXqR4HFEKrqTWAEX7kuW8lRk DPlA== X-Gm-Message-State: ACrzQf32MBvPYAU76zviYqRB0XJIjPA1ndwuGv8WTeoEbp3ktjFj2lHI lWj3O914DPxGDaVLq+DZG+CZzw== X-Google-Smtp-Source: AMsMyM5tFBRMMV05KMLG/vmyPgQXqqS/Zii1t+5qNtGrc9v8RI7ilVaypvhioFuAGkauxAM+3y9SZg== X-Received: by 2002:a17:902:db0a:b0:178:2636:b6de with SMTP id m10-20020a170902db0a00b001782636b6demr1104299plx.58.1663352306312; Fri, 16 Sep 2022 11:18:26 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c00a:a073:ae5d:6ee4:5c2f:6733]) by smtp.gmail.com with ESMTPSA id d14-20020a17090a6a4e00b002007b60e288sm1770000pjm.23.2022.09.16.11.18.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Sep 2022 11:18:25 -0700 (PDT) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Fancy Fang , Tim Harvey , Michael Nazzareno Trimarchi , Adam Ford , Neil Armstrong , Robert Foss , Laurent Pinchart , Tommaso Merciai , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v5 01/11] drm: exynos: dsi: Restore proper bridge chain order Date: Fri, 16 Sep 2022 23:47:21 +0530 Message-Id: <20220916181731.89764-2-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220916181731.89764-1-jagan@amarulasolutions.com> References: <20220916181731.89764-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org From: Marek Szyprowski Restore the proper bridge chain by finding the previous bridge in the chain instead of passing NULL. This establishes a proper bridge chain while attaching downstream bridges. v5: * exclude the NULL replacement in exynos_dsi_host_attach v4: * none v3: * new patch Signed-off-by: Marek Szyprowski Signed-off-by: Jagan Teki --- drivers/gpu/drm/exynos/exynos_drm_dsi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index ec673223d6b7..f4e3d2518ad0 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1428,7 +1428,8 @@ static int exynos_dsi_attach(struct drm_bridge *bridge, { struct exynos_dsi *dsi = bridge_to_dsi(bridge); - return drm_bridge_attach(bridge->encoder, dsi->out_bridge, NULL, flags); + return drm_bridge_attach(bridge->encoder, dsi->out_bridge, bridge, + flags); } static const struct drm_bridge_funcs exynos_dsi_bridge_funcs = {