From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 6554DC433DB for ; Sun, 14 Feb 2021 19:42:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2FA8C64DD8 for ; Sun, 14 Feb 2021 19:42:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229923AbhBNTmE (ORCPT ); Sun, 14 Feb 2021 14:42:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39462 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229783AbhBNTl6 (ORCPT ); Sun, 14 Feb 2021 14:41:58 -0500 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DC175C061574 for ; Sun, 14 Feb 2021 11:41:18 -0800 (PST) Received: by mail-pj1-x1033.google.com with SMTP id t2so2627710pjq.2 for ; Sun, 14 Feb 2021 11:41:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OEU9K8O8lr+3rHXwRQA55P8y6nBOsd6z61f8CIpxwRw=; b=F0Qgyf6v2tiZz7YJnxvZ8eJHpLZZL5anVhqVpyWbyWbL0II9dBc6u/HvOM2jr5iVe6 72nvcuVeFokurb2dJiyhOkaW/kZ/Hz2ZMBlVZ5MY5Vn9AELfyVaA3bXomHFZdVTCZjEF hnwLFmiIHcOEXarki46T+SdiRs3IcxQXk2ILA= 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=OEU9K8O8lr+3rHXwRQA55P8y6nBOsd6z61f8CIpxwRw=; b=j4fY94/qNS6nko13YQeZFfeCc42kIRnbv81yfenAy8gz6ooeWTr1nraMDxuB1N7xtC TAI25VfO7JdPRx0ch+YtKrPNr3lXvjfBwSulUhw/NNb/Oxmhh0OM08oPIf1AxLc2otIU xKrftnNrImtUw++y5otPH12o1vasbVK5W0+G4t3jBhWplVhTVnxVpsn4THf3LhWIpgVN dJOkHHQ6THyShOSKhgglluf4dJill67pHei38N+xIUBUMnnfxbdvTUgjoZQdyIxHm+U2 0jZw9dRmJEIADch8eUwPGcbwZf5hJC7L8ijCGHGqMj3tXAc8quySeM2oKdHnTIVhmgRI Nwgg== X-Gm-Message-State: AOAM533+qxIwmd3Ur0okmXDBUAaZgk/vdxFnmtkV15bylGduX4AQaTOW +eZz51QNcVONm3MfFeg943yNzA== X-Google-Smtp-Source: ABdhPJzuRDJWAxPCuSeDZkNIGM/J3GwrRrwVFw+NjiOftQtrJh5oLckq92dQmblysU6ylnUPSswJKA== X-Received: by 2002:a17:90a:dc82:: with SMTP id j2mr1522625pjv.99.1613331678340; Sun, 14 Feb 2021 11:41:18 -0800 (PST) Received: from ub-XPS-13-9350.domain.name ([45.249.78.214]) by smtp.gmail.com with ESMTPSA id 125sm15129247pfu.7.2021.02.14.11.41.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Feb 2021 11:41:17 -0800 (PST) From: Jagan Teki To: Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec , Laurent Pinchart Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-amarula@amarulasolutions.com, Jagan Teki Subject: [PATCH v3 0/7] drm: sun4i: dsi: Convert drm bridge Date: Mon, 15 Feb 2021 01:10:55 +0530 Message-Id: <20210214194102.126146-1-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series convert Allwinner DSI controller to full functional drm bridge driver for supporting slave panel, bridges. Here, are the previous version changes[1]. The key concern about these changes is about kms hotplug which indeed not compatible with bridge conversion. However, I did try several ways to support hotplug with the bridge but it's resulting in a deadlock where bind never attach bridge until bridge pointer found and bridge pointer cannot found until bind finishes. Any inputs on this would be appreciated. [1] https://lwn.net/Articles/783127/ Any inputs? Jagan. Jagan Teki (7): drm: sun4i: dsi: Use drm_of_find_panel_or_bridge drm: sun4i: dsi: Add bridge support drm: sun4i: dsi: Convert to bridge driver drm: sun4i: dsi: Separate code for bridge pre_enable drm: bridge: Queue the bridge chain instead of stacking drm: sun4i: dsi: Use drm_panel_bridge, connector API [DO NOT MERGE] ARM: dts: sun8i: bananapi-m2m: Enable S070WV20-CT16 panel arch/arm/boot/dts/sun8i-r16-bananapi-m2m.dts | 85 ++++++++++++ drivers/gpu/drm/drm_bridge.c | 4 +- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 128 +++++++++---------- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h | 11 +- 4 files changed, 150 insertions(+), 78 deletions(-) -- 2.25.1