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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, 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 3AD36C4167B for ; Thu, 10 Dec 2020 13:49:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F07DF23609 for ; Thu, 10 Dec 2020 13:49:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389361AbgLJNs4 (ORCPT ); Thu, 10 Dec 2020 08:48:56 -0500 Received: from wnew4-smtp.messagingengine.com ([64.147.123.18]:49761 "EHLO wnew4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389162AbgLJNsf (ORCPT ); Thu, 10 Dec 2020 08:48:35 -0500 Received: from compute2.internal (compute2.nyi.internal [10.202.2.42]) by mailnew.west.internal (Postfix) with ESMTP id 41B95ED0; Thu, 10 Dec 2020 08:46:59 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute2.internal (MEProxy); Thu, 10 Dec 2020 08:47:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=zEz6d6/r2UCSq DFjDfIPTijjbsA3ikvSmj5cNSEn5Sw=; b=qSoFGnUF0NO8W40Z+5kn/OejeVUTh +KXpfLw2QTxbCPsoJMr6t2E+XtDn7aBrb6X6t01SzG55sXpqaaw318WKm0ZXTPqb FSz5q0t+KWRaZTs2YDevVjL0Rlxk8LqasFAvVs8Z+Pz1an5zY0s4c9kbMXgGcY6H 27bIVbFgqizdOCOPNHigpN+A87cF12yjr+SJX/HzfGKNDxmA4pwxtzFODPSvdxAu wTiSgYNW54akI+5ywWIBoJ0RvIkeJIetpUlExHcj3Xn5ToB9g6DMuSFiHxIqt6MH rLRjBV3oPo9o7ILj36RrMIP//deTm4iJj6c2/LPf68bfjU9jX4yyD6HBQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=zEz6d6/r2UCSqDFjDfIPTijjbsA3ikvSmj5cNSEn5Sw=; b=TLc97VWV lCnIjKWXtUutJ+L70xDn3B8zv1CPNpAvYIT3SUbQz6ZpQZdrW3Jf7mJYXponQGZT fvL6VNN/4RGt59WC13RppIxkSY0pkurMDFsqe777h/bIZiY7d986NwhH7jlrNXq2 i/VzBQXaeR5x/pv24DvfqlPHo4yxtGDfgOe6x318KaH/4fzfq1TB89NxeRqJ6kwW dnvuucMphPneiVddq9yrt2wbXsBPCvTajhed5MDcWlLX6ZefNhmXiZtJTXAkGGK5 lblg8iX6zQjySqhFJ6QVnjkr5EzlY7vafXVp8mFk90z72+al6IiC5S7le4vtOr/9 M+fVdE76xtsxhQ== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrudektddgheeiucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpeforgigihhm vgcutfhiphgrrhguuceomhgrgihimhgvsegtvghrnhhordhtvggthheqnecuggftrfgrth htvghrnhepvdekleevfeffkeejhfffueelteelfeduieefheduudfggffhhfffheevveeh hedvnecukfhppeeltddrkeelrdeikedrjeeinecuvehluhhsthgvrhfuihiivgeptdenuc frrghrrghmpehmrghilhhfrhhomhepmhgrgihimhgvsegtvghrnhhordhtvggthh X-ME-Proxy: Received: from localhost (lfbn-tou-1-1502-76.w90-89.abo.wanadoo.fr [90.89.68.76]) by mail.messagingengine.com (Postfix) with ESMTPA id A4B2D108005C; Thu, 10 Dec 2020 08:46:56 -0500 (EST) From: Maxime Ripard To: Eric Anholt , Maarten Lankhorst , Thomas Zimmermann , Maxime Ripard , Daniel Vetter , David Airlie Cc: Jason Cooper , bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, Marc Zyngier , linux-media@vger.kernel.org, Hans Verkuil , linux-kernel@vger.kernel.org, Mauro Carvalho Chehab , Thomas Gleixner , Dave Stevenson , linux-rpi-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org, Dom Cobley Subject: [PATCH 05/15] drm/vc4: hdmi: Restore cec physical address on reconnect Date: Thu, 10 Dec 2020 14:46:38 +0100 Message-Id: <20201210134648.272857-6-maxime@cerno.tech> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201210134648.272857-1-maxime@cerno.tech> References: <20201210134648.272857-1-maxime@cerno.tech> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dom Cobley Currently we call cec_phys_addr_invalidate on a hotplug deassert. That may be due to a TV power cycling, or an AVR being switched on (and switching edid). This makes CEC unusable since our controller wouldn't have a physical address anymore. Set it back up again on the hotplug assert. Fixes: 15b4511a4af6 ("drm/vc4: add HDMI CEC support") Signed-off-by: Dom Cobley Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_hdmi.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 28b78ea885ea..eff3bac562c6 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -136,20 +136,29 @@ static enum drm_connector_status vc4_hdmi_connector_detect(struct drm_connector *connector, bool force) { struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector); + bool connected = false; if (vc4_hdmi->hpd_gpio) { if (gpio_get_value_cansleep(vc4_hdmi->hpd_gpio) ^ vc4_hdmi->hpd_active_low) - return connector_status_connected; - cec_phys_addr_invalidate(vc4_hdmi->cec_adap); - return connector_status_disconnected; - } - - if (drm_probe_ddc(vc4_hdmi->ddc)) - return connector_status_connected; - + connected = true; + } else if (drm_probe_ddc(vc4_hdmi->ddc)) + connected = true; if (HDMI_READ(HDMI_HOTPLUG) & VC4_HDMI_HOTPLUG_CONNECTED) + connected = true; + if (connected) { + if (connector->status != connector_status_connected) { + struct edid *edid = drm_get_edid(connector, vc4_hdmi->ddc); + + if (edid) { + cec_s_phys_addr_from_edid(vc4_hdmi->cec_adap, edid); + vc4_hdmi->encoder.hdmi_monitor = drm_detect_hdmi_monitor(edid); + drm_connector_update_edid_property(connector, edid); + kfree(edid); + } + } return connector_status_connected; + } cec_phys_addr_invalidate(vc4_hdmi->cec_adap); return connector_status_disconnected; } -- 2.28.0