From patchwork Fri May 1 15:23:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Enric Balletbo i Serra X-Patchwork-Id: 11522745 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3459D14B4 for ; Fri, 1 May 2020 15:24:00 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 0BE2F206D9 for ; Fri, 1 May 2020 15:24:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XevHCZ6g" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0BE2F206D9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org 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: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:In-Reply-To:References: List-Owner; bh=ZzPC1oHh7CE02Evz/uXxTFdmiQRoHbEidXN57GBRNx4=; b=XevHCZ6gJEuqVy A2XQHCPzSZ50suGlXZSv44EW4gg2wc0BoiqDe2km02aln22l7v2HCbbmqlP/5vih2fQE+AmI6oKgF /KXalwLU2Ym7vIXYyOt4jnZoPrY5AwRlQaLl0v17lOUz6ci3uKV7WN17m9L+VH9ETwpqOvz6F0awB I5UBXC1y2QaHBLQ86DdLdxlohX/d0hl+F2CRiwiTnhOgaiuIGx0KUbZhkhtDTBF6szSYp5MNer5hW wKGp5fQWn/fZ4vsJOYdhOd3wZTGhlR4uUc6YN5cZ5f3OsK+P5kUCdek1i4c0FZi/c4itpvtwcQeT9 pXutTrBdToQwiLmNt9Kw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jUXWA-0002O2-Aj; Fri, 01 May 2020 15:23:58 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jUXVz-0002Cg-6v; Fri, 01 May 2020 15:23:48 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: eballetbo) with ESMTPSA id CD1842A21CA From: Enric Balletbo i Serra To: linux-kernel@vger.kernel.org, Collabora Kernel ML Subject: [PATCH v4 0/7] Convert mtk-dsi to drm_bridge API and get EDID for ps8640 bridge Date: Fri, 1 May 2020 17:23:28 +0200 Message-Id: <20200501152335.1805790-1-enric.balletbo@collabora.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200501_082347_381038_0157FCF9 X-CRM114-Status: UNSURE ( 9.47 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chun-Kuang Hu , Jernej Skrabec , drinkcat@chromium.org, Philipp Zabel , Jonas Karlman , David Airlie , Thomas Zimmermann , dri-devel@lists.freedesktop.org, Neil Armstrong , Maarten Lankhorst , Maxime Ripard , Andrzej Hajda , linux-mediatek@lists.infradead.org, Laurent Pinchart , Daniel Vetter , hsinyi@chromium.org, matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org The PS8640 dsi-to-eDP bridge driver is using the panel bridge API, however, not all the components in the chain have been ported to the drm_bridge API. Actually, when a panel is attached the default panel's mode is used, but in some cases we can't get display up if mode getting from eDP control EDID is not chosen. This series address that problem, first implements the .get_edid() callback in the PS8640 driver (which is not used until the conversion is done) and then, converts the Mediatek DSI driver to use the drm_bridge API. As far as I know, we're the only users of the mediatek dsi driver in mainline, so should be safe to switch to the new chain of drm_bridge API unconditionally. The patches has been tested on a Acer Chromebook R13 (Elm) running a Chrome OS userspace and checking that the valid EDID mode reported by the bridge is selected. Enric Balletbo i Serra (7): drm/bridge: ps8640: Get the EDID from eDP control drm/bridge_connector: Set default status connected for eDP connectors drm/mediatek: mtk_dsi: Rename bridge to next_bridge drm/mediatek: mtk_dsi: Convert to bridge driver drm/mediatek: mtk_dsi: Use simple encoder drm/mediatek: mtk_dsi: Use the drm_panel_bridge API drm/mediatek: mtk_dsi: Create connector for bridges drivers/gpu/drm/bridge/parade-ps8640.c | 12 ++ drivers/gpu/drm/drm_bridge_connector.c | 1 + drivers/gpu/drm/mediatek/mtk_dsi.c | 277 ++++++++----------------- 3 files changed, 97 insertions(+), 193 deletions(-)