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 DF1DF103A9A8 for ; Wed, 25 Mar 2026 10:58:10 +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=5AnJ20lZjeiAlamy4E6fuVVt9VyHQP9gTVZAMf+JpY0=; b=vMUaQzwM5omOgV 5NsIlyF/6ALaJXmkUHcime/DiiRpkn2MLWEgtbFvmVxkr6YL4Y+rAp1UEcjcxF3pSSsBAL0CiDJ74 KzFQwxg0Fj+PdAInRkDmKNELyWyoPq1yP7c05XF/gmB6JKs9LpF8W5TIbBVrLTRHGw9NI20usUCLw MXH18ti765nQwiPbZviWqbtVeZxKTGlk3qzKn8nsUWOORGyMtguJIgU5THFwPuzC1u4PC1WukUUhk BfdKnDgh8T3LIOQb9DStqpYNLJu3ps6xX4RJNZmSBXN/e8aNhHKWUwI/ord8LUof9BANZbLGdVL3V dJbwMS6bJ5hJJ9fnhUfQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5Lw7-00000003ByU-2xqt; Wed, 25 Mar 2026 10:58:07 +0000 Received: from sender4-pp-f112.zoho.com ([136.143.188.112]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5Lw5-00000003BxZ-1oZz for linux-rockchip@lists.infradead.org; Wed, 25 Mar 2026 10:58:06 +0000 ARC-Seal: i=1; a=rsa-sha256; t=1774436278; cv=none; d=zohomail.com; s=zohoarc; b=Y7YCwHKzH8hiDAmnV1KUrd+IVN07UtPzFkqbD9FwE9D5lEDFGtb0pzQuy6wIWTTiyRrQA+9boVCvdlYQwC8J118KESfTl03jOaKpBWCAMObuNBdsqoQtNFWEwB8bM+nQuHNPleBHD9g3FEiVJwvp3MKB1+rFx5OWkQJVODGtVD4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1774436278; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:MIME-Version:Message-ID:Subject:Subject:To:To:Message-Id:Reply-To; bh=LZX8KGo4PZ6B753XIW7wXx0NwuBo24mvyseB5KdfeiA=; b=CSLvxmGzf4i89ZEayN2s55qxcZIMlJhv2q1BTjRTfONKLbEW6Qrh/dyGxrlawwXo4KZz82vY+FMhWmK0XWpilb8+NLTmajP2yZ6zBspNjaf8DI5twM7KLFkLZviuq9kbvHmXPhXeX+vzEEoNk1Tmwiqn3KOnsPkDLaPj9GXGzbU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=dmitry.osipenko@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1774436277; s=zohomail; d=collabora.com; i=dmitry.osipenko@collabora.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To; bh=LZX8KGo4PZ6B753XIW7wXx0NwuBo24mvyseB5KdfeiA=; b=C3xDVnHmMoUC+rQxmG9E1JQGdTZt5KBGSMQtDER/26nRZ60Ab2ZVKuGGoUUlngr3 x0GgV++pKowKdzTmJZAgMWAJgRt4YkB8ukFwD6DHLEzDXJmuE74FaxMLTC37YmifT19 bwy5QQJ78qoC3xTCMy58YLRQGVaSW/k49DFv4cfg= Received: by mx.zohomail.com with SMTPS id 1774436275676558.7550111861934; Wed, 25 Mar 2026 03:57:55 -0700 (PDT) From: Dmitry Osipenko To: Mauro Carvalho Chehab , Hans Verkuil , Ross Cawston Cc: kernel@collabora.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org Subject: [PATCH v2] media: synopsys: hdmirx: Fix HPD lane hold time Date: Wed, 25 Mar 2026 13:57:42 +0300 Message-ID: <20260325105742.63236-1-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.53.0 MIME-Version: 1.0 X-ZohoMailClient: External X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260325_035805_519868_C3F077BD X-CRM114-Status: GOOD ( 10.04 ) 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 Increase time of holding HPD lane low by 50ms. This fixes EDID change not detected by source/display side. Fixes: 7b59b132ad43 ("media: platform: synopsys: Add support for HDMI input driver") Reported-by: Ross Cawston Closes: https://lore.kernel.org/linux-rockchip/20260209061654.54757-1-ross@r-sc.ca/ Signed-off-by: Dmitry Osipenko --- Changelog: v2: - Corrected commit title prefix as was suggested by Sebastian Reichel - Corrected mixed up s/sink/source/ in the commit message. drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c index 61ad20b18b8d..4c8957505a50 100644 --- a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c +++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c @@ -506,9 +506,9 @@ static void hdmirx_hpd_ctrl(struct snps_hdmirx_dev *hdmirx_dev, bool en) hdmirx_writel(hdmirx_dev, CORE_CONFIG, hdmirx_dev->hpd_trigger_level_high ? en : !en); - /* 100ms delay as per HDMI spec */ + /* 100ms delay as per HDMI spec + extra 50ms to cover internal delay */ if (!en) - msleep(100); + msleep(100 + 50); } static void hdmirx_write_edid_data(struct snps_hdmirx_dev *hdmirx_dev, -- 2.53.0 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip