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 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 DC68BD730AD for ; Fri, 3 Apr 2026 18:53:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:Cc :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=STCfixOUGFIjG350mrgGjMMff0UOE7sgY9Ycrq1tSLo=; b=H9kG7MeoDQeXlL 97TLGqiI1LAHi5yurZO63BEWLbPS0XdrlNIAusQzXxrwLIt8bNreTt25RuRpGZDhiR2a4XiJDd0Nn cz+MnjQUb1U94nSTF4ytkGmqQKW3SKTZ+bmexfn6Q7Q0PGRLH51c7a0wYBu45O0dqpx7BzTBojz+F Q5tq4g9E5QfqgdSAXzDpNvcR0CgL/1yj2GGzcDfVDSZ8TLTeowCz+xpHk/iaeRTA1y3C+9t3MvszH BC1KTUyA33izzfXVxokSm5e2eQ2vy0b2ktE3NJGR5vSAoeBE9ynSpoQb2KPxv5tt5mwDtXJx2J+gI pd5q5B6/srJzPci1eTJA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w8jeC-00000002Ryf-3CPS; Fri, 03 Apr 2026 18:53:36 +0000 Received: from smtp.forwardemail.net ([121.127.44.66]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w8je9-00000002Rxx-2V2O for linux-rockchip@lists.infradead.org; Fri, 03 Apr 2026 18:53:35 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kwiboo.se; h=Content-Transfer-Encoding: MIME-Version: Message-ID: Date: Subject: Cc: To: From; q=dns/txt; s=fe-e1b5cab7be; t=1775242411; bh=JMoGga8j+B0s/NUIBMqajdD1ehf1AEFaHBht6CmNsMI=; b=bOrYcKpefX0XgGM4/haNLCCAetBLTBTXfeP7di0Bkj8T7q47wSkRUaWNlE/hsAFGNZEvOjuFa poeFMz3pptX1z9Q9fjGlAEXZQ/dxhtxk4Qbcq9DNR7rthG4+TjysEEZicuBr2Wf9I9ghtD5YNjS wcg/F74V9jYDXbQ+nwwWEZvQ/1aQa4EI3JeqDRHNAx5/ihuEP34ndOlpHmC7dEvQNYf4ITfdM4O c4ZnMQrLVu83Q5XL/QVIf+W4DUs1RZ3j1R0+5Ornhdcu7W/jOJrwY0gvXBw8d33AqGt1kummwAV G+qVjKoWxORlucf7uZTUcbanx6MFm8hYpj6CD2LL39Cg== X-Forward-Email-ID: 69d00ca6dc98192b40b892ee X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.66 X-Forward-Email-Version: 2.6.68 X-Forward-Email-Website: https://forwardemail.net X-Complaints-To: abuse@forwardemail.net X-Report-Abuse: abuse@forwardemail.net X-Report-Abuse-To: abuse@forwardemail.net From: Jonas Karlman To: Andrzej Hajda , Neil Armstrong , Robert Foss Cc: Laurent Pinchart , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Christian Hewitt , Diederik de Haas , dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Jonas Karlman Subject: [PATCH v3 00/13] drm: bridge: dw_hdmi: Misc enable/disable, CEC and EDID cleanup Date: Fri, 3 Apr 2026 18:52:46 +0000 Message-ID: <20260403185303.80748-1-jonas@kwiboo.se> X-Mailer: git-send-email 2.53.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260403_115334_107364_4A155500 X-CRM114-Status: UNSURE ( 9.05 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org This is a revival of an old dw-hdmi series and is the first series part of a new effort to upstream old LibreELEC HDMI 2.0 patches for Rockchip RK33xx devices. This series ensure poweron/poweroff and CEC phys addr invalidation is happening under drm mode_config mutex lock, and also ensure EDID is updated after a HPD low voltage pulse by changing to debounce hotplug processing. These changes have mainly been tested on Rockchip RK3328, RK3399 and RK3568 devices. Rockchip uses the dw-hdmi connector, so this could use some more testing with drivers that use the bridge connector. Future planned series will likely convert dw-hdmi to a hdmi bridge and add improved deep color support as preparation to add 10-bit and yuv420 output support on Rockchip RK33xx devices. Testing with a Rock Pi 4 (RK3399) using a Reaspberry Pi Monitor with Linux kms client console using drm.debug=0xe should log something like following: Power cycle monitor using the power button: [CONNECTOR:68:HDMI-A-1] CEA VCDB 0x4a [CONNECTOR:68:HDMI-A-1] HDMI: DVI dual 0, max TMDS clock 0 kHz [CONNECTOR:68:HDMI-A-1] ELD monitor RPI MON156 [CONNECTOR:68:HDMI-A-1] HDMI: latency present 0 0, video latency 0 0, audio latency 0 0 [CONNECTOR:68:HDMI-A-1] ELD size 36, SAD count 1 [CONNECTOR:68:HDMI-A-1] Same epoch counter 10 Cable unplugged: [CONNECTOR:68:HDMI-A-1] EDID changed, epoch counter 11 [CONNECTOR:68:HDMI-A-1] status updated from connected to disconnected [CONNECTOR:68:HDMI-A-1] Changed epoch counter 10 => 12 [CONNECTOR:68:HDMI-A-1] generating connector hotplug event [CONNECTOR:68:HDMI-A-1] Sent hotplug event Cable connected: [CONNECTOR:68:HDMI-A-1] CEA VCDB 0x4a [CONNECTOR:68:HDMI-A-1] HDMI: DVI dual 0, max TMDS clock 0 kHz [CONNECTOR:68:HDMI-A-1] ELD monitor RPI MON156 [CONNECTOR:68:HDMI-A-1] HDMI: latency present 0 0, video latency 0 0, audio latency 0 0 [CONNECTOR:68:HDMI-A-1] ELD size 36, SAD count 1 [CONNECTOR:68:HDMI-A-1] status updated from disconnected to connected [CONNECTOR:68:HDMI-A-1] Changed epoch counter 12 => 13 [CONNECTOR:68:HDMI-A-1] generating connector hotplug event [CONNECTOR:68:HDMI-A-1] Sent hotplug event Changes in v3: - Rework EDID refresh handling to closer match bridge connector - Use delayed work to debounce HPD processing - Update commit messages - Collect r-b tags - Rebased on next-20260401 Link to v2: https://lore.kernel.org/r/20240908132823.3308029-1-jonas@kwiboo.se/ Changes in v2: - Add patch to disable scrambler feature when not supported - Add patch to only notify connected status on HPD interrupt - Update commit messages - Collect r-b tags - Rebased on next-20240906 Link to v1: https://lore.kernel.org/r/20240611155108.1436502-1-jonas@kwiboo.se/ Jonas Karlman (13): drm: bridge: dw_hdmi: Disable scrambler feature when not supported drm: bridge: dw_hdmi: Only notify connected status on HPD interrupt drm: bridge: dw_hdmi: Call poweron/poweroff from atomic enable/disable drm: bridge: dw_hdmi: Use passed mode instead of stored previous_mode drm: bridge: dw_hdmi: Fold poweron and setup functions drm: bridge: dw_hdmi: Remove previous_mode and mode_set drm: bridge: dw_hdmi: Invalidate CEC phys addr from connector detect drm: bridge: dw_hdmi: Remove cec_notifier_mutex drm: bridge: dw_hdmi: Use delayed_work to debounce hotplug event drm: bridge: dw_hdmi: Use drm_connector_helper_hpd_irq_event() drm: bridge: dw_hdmi: Extract dw_hdmi_connector_status_update() drm: bridge: dw_hdmi: Use dw_hdmi_connector_status_update() drm: bridge: dw_hdmi: Use display_info is_hdmi and has_audio drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 209 +++++++++------------- 1 file changed, 80 insertions(+), 129 deletions(-) -- 2.53.0 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip