From nobody Fri Apr 3 01:22:48 2026 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2C0CB3A8721; Wed, 25 Mar 2026 10:58:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774436297; cv=pass; b=shonHQDeVmD5BZ7ZO9du7pNoGaEaqNS/p1gNcn6IiWXbcqM+693NVRFqQ86orb6aMRPKhloU4373tGLRY/yiJ8XY/0zLCU+yuPLGMcLZ5FT61FJZ3RwipUu0iQisuUZmb3OOv60Z8OdI6wFPHZBpurkNpPoLlUAbs4k3wMhMJ3I= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774436297; c=relaxed/simple; bh=A+bdSqXFXVm/PoON4Ql3pNe4T0JuqG8zJ4wWht72dkk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=LwgOODBM9OttP6MaRXo31XyEQSOcYAaTi14rQGB9ddT2cjTCw09x2uYMIRXjXGNyQx/Bwt0wtsynLHUhPbZfNSmk1XdtB5fthY8S2sdhPi19Tj9qxkT/B25il+d2njCJ6ilAzy6GYb+WIChiePsqCdcMddxYjoT7Tn5tpC56+m0= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=dmitry.osipenko@collabora.com header.b=C3xDVnHm; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=dmitry.osipenko@collabora.com header.b="C3xDVnHm" 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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMailClient: External Content-Type: text/plain; charset="utf-8" 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 *hdm= irx_dev, bool en) hdmirx_writel(hdmirx_dev, CORE_CONFIG, hdmirx_dev->hpd_trigger_level_high ? en : !en); =20 - /* 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); } =20 static void hdmirx_write_edid_data(struct snps_hdmirx_dev *hdmirx_dev, --=20 2.53.0