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bh=ueYuErBzNOQow9i3cCLMsyBomG/pby6aV6w567ivZY4=; b=U+DIYKfhbKZmmrLVBDFw3kOcAYxoAfbWLFcr2qyIseEx3IpE98uMol8O zjGrA9YYi+QPHqcGkS7GKCYOAPuyyyUFsUomknrqmcPIQVJBpiDBcbims 3aHDBxF1AxsetHjCE1jP3irdXgBCSzQ4yRoCAQS6AwJ/HGc9Zr/LSaWI6 ylWB2rehzjySN60GE6UwEaF6Wy+jx6FGDOKXpNIudrwn0wjZlIlun8s2X beWM24ydrBRJu9ik/ps/vsysgkV9Qu8CGRSucNxRQ+9Vyom9NejAU0bxP 4gPkj2P+X/fptLAsqzEjSKUMWcafVMOik4U0YfDCi0VAKHYTNpfhj12TT Q==; Received: from unknown (HELO mse.ite.com.tw) ([192.168.35.30]) by ironport.ite.com.tw with ESMTP; 08 Mar 2024 16:54:33 +0800 Received: from CSBMAIL1.internal.ite.com.tw (CSBMAIL1.internal.ite.com.tw [192.168.65.58]) by mse.ite.com.tw with ESMTP id 4288sSeO079655; Fri, 8 Mar 2024 16:54:28 +0800 (GMT-8) (envelope-from kuro.chung@ite.com.tw) Received: from ite-XPS-13-9360.internal.ite.com.tw (192.168.72.42) by CSBMAIL1.internal.ite.com.tw (192.168.65.58) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 8 Mar 2024 16:54:28 +0800 From: kuro To: CC: Allen Chen , Pin-yen Lin , Kuro Chung , Kenneth Haung , "open list:DRM DRIVERS" , Jernej Skrabec , Jonas Karlman , Laurent Pinchart , open list Subject: [PATCH v4 0/1] drm/bridge: it6505: fix hibernate to resume no display issue Date: Fri, 8 Mar 2024 17:05:46 +0800 Message-ID: <20240308090548.269625-1-kuro.chung@ite.com.tw> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: CSBMAIL1.internal.ite.com.tw (192.168.65.58) To CSBMAIL1.internal.ite.com.tw (192.168.65.58) X-TM-SNTS-SMTP: 0787A66D1D05A46525F5F1DB9E5BA4C8B4B3FFE9486B63953D78B7D6F5C182042002:8 X-MAIL:mse.ite.com.tw 4288sSeO079655 From: Kuro Chung New patch description for v4 patch update by reviewer Pin-yen Lin comment, remove function it6505_irq_video_fifo_error/it6505_irq_io_latch_fifo_overflow update by reviewer Pin-yen Lin comment, update Signed-off-by column New patch description for v3 patch update upstream MAINTAINERS mail list New patch description for v2 patch Missing declaration for i variable in function it6505_irq_video_error_handler , add it by this patch Origianl description for v1 patch drm/bridge: it6505: fix hibernate to resume no display issue ITE added a FIFO reset bit for input video. When system power resume, the TTL input of it6505 may get some noise before video signal stable and the hardware function reset is required. But the input FIFO reset will also trigger error interrupts of output module rising. Thus, it6505 have to wait a period can clear those expected error interrupts caused by manual hardware reset in one interrupt handler calling to avoid interrupt looping. allen (1): UPSTREAM: drm/bridge: it6505: fix hibernate to resume no display issue drivers/gpu/drm/bridge/ite-it6505.c | 50 ++++++++++++++++++++--------- 1 file changed, 35 insertions(+), 15 deletions(-) -- 2.25.1