From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out198-7.us.a.mail.aliyun.com (out198-7.us.a.mail.aliyun.com [47.90.198.7]) (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 6C5F934EF07; Fri, 24 Apr 2026 09:06:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=47.90.198.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777021568; cv=none; b=TcelVwedcjDlnPcgyr/e6D+NLsN/jkwoZEhe2STpBGaibbudrT8K2glaIGMatos+cmg5Kz6GBstx5LOLStaFihqNQ9lOdHUrMRqKyT3mynslXSTSUBbf5MdMDBOKN02bX9vc8R0el8BMDhJW5GFFn/vDaNAvMadyWvx/1uX+UFE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777021568; c=relaxed/simple; bh=6aCZtPg87Y1M2DdguRjqyAFTX8sp4JNEkrDHBgMBx8o=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=jlfNRJcZd48Njs5HBNW6b6VKguBaqMDiQbgsFHCnRQmU9tf1eC0F3UKz/TvHEsIad8qokLMdTbC+OX0oKOtQUDrGIPz74IVpeU96XRleImM1G23e+8uNTZ1mSMVqCBCdmMAxwAgU/m9cigw8B6FydrWkyicfz97nFPGFG6KO63Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lontium.com; spf=pass smtp.mailfrom=lontium.com; dkim=pass (2048-bit key) header.d=lontium.com header.i=@lontium.com header.b=FuE9gt8b; arc=none smtp.client-ip=47.90.198.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lontium.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lontium.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lontium.com header.i=@lontium.com header.b="FuE9gt8b" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=lontium.com; s=default; t=1777021548; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=ecfHlwbhziqCnj0RyxvgFELOclmn9GpLOgHDwwYNFXo=; b=FuE9gt8bqRe8VqnA9HICyefLx5j1QrSXKANeo5feuaDfV97+s1nhfFDEjzHtuFyjSVDBxHqnM3LKWJHMaTOSt8qNT9zH93msVNJsVGKwIAkilMVV6MaKsFhe4hXCTQYX+49aDBWaEEILof/9Y7sNSUk4JDOXtwwe6DCCaUmn7B4JKlz6niEf2gM1wQOub8Q7/Q5wbc4r6MIUbnlDsE1uWJliNGqb+C89rM3RoSRXqGliX1d+LPFoNvzkVDn90lCmq4jpZ4So9aUpxrQdn1h3AxAZB6nlRB0rJaQPWG4ngMTTyRyKUtJJ763rb07bqH/RBDwNQp7jsbt1K9KR4MRPbw== X-Alimail-AntiSpam:AC=CONTINUE;BC=0.1011229|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_system_inform|0.0257291-0.00697652-0.967294;FP=310979370624404713|0|0|0|0|-1|-1|-1;HT=maildocker-contentspam033037071049;MF=syyang@lontium.com;NM=1;PH=DS;RN=20;RT=20;SR=0;TI=SMTPD_---.hJOs6zM_1777020609; Received: from DESKTOP-V2MKAT2.localdomain(mailfrom:syyang@lontium.com fp:SMTPD_---.hJOs6zM_1777020609 cluster:ay29) by smtp.aliyun-inc.com; Fri, 24 Apr 2026 16:50:10 +0800 From: Sunyun Yang To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andrzej.hajda@intel.com, neil.armstrong@linaro.org, dmitry.baryshkov@oss.qualcomm.com, maarten.lankhorst@linux.intel.com, rfoss@kernel.org, mripard@kernel.org Cc: Laurent.pinchart@ideasonboard.com, tzimmermann@suse.de, jonas@kwiboo.se, jernej.skrabec@gmail.com, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, yangsunyun1993@gmail.com, xmzhu@lontium.corp-partner.google.com, xmzhu@lontium.com, Sunyun Yang Subject: [PATCH] drm/bridge: Fix the interrupt clearing error in LT9611 Date: Fri, 24 Apr 2026 16:50:07 +0800 Message-Id: <20260424085007.3239969-1-syyang@lontium.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Incorrect clearing of the LT9611 interrupt register causes subsequent interrupts to not be recognized. Signed-off-by: Sunyun Yang --- drivers/gpu/drm/bridge/lontium-lt9611.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 4517aee83332..f30a2875000f 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -398,6 +398,7 @@ static irqreturn_t lt9611_irq_thread_handler(int irq, void *dev_id) dev_info(lt9611->dev, "hdmi cable disconnected\n"); regmap_write(lt9611->regmap, 0x8207, 0xbf); + regmap_write(lt9611->regmap, 0x8207, 0xff); regmap_write(lt9611->regmap, 0x8207, 0x3f); } @@ -406,6 +407,7 @@ static irqreturn_t lt9611_irq_thread_handler(int irq, void *dev_id) dev_info(lt9611->dev, "hdmi cable connected\n"); regmap_write(lt9611->regmap, 0x8207, 0x7f); + regmap_write(lt9611->regmap, 0x8207, 0xff); regmap_write(lt9611->regmap, 0x8207, 0x3f); } -- 2.34.1