From patchwork Wed Mar 6 02:20:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: kuro X-Patchwork-Id: 13583211 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 CE917C54798 for ; Wed, 6 Mar 2024 02:09:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2233C112DE9; Wed, 6 Mar 2024 02:09:48 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=ite.com.tw header.i=@ite.com.tw header.b="lzv7qrNY"; dkim-atps=neutral Received: from ironport.ite.com.tw (60-251-196-230.hinet-ip.hinet.net [60.251.196.230]) by gabe.freedesktop.org (Postfix) with ESMTPS id A51DE112DE9 for ; Wed, 6 Mar 2024 02:09:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ite.com.tw; s=dkim; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=zCxEGb0mnx0UG+l1KpllEKhQN/7/zBRB0JApGyWfuwc=; b=lzv7qrNYN2vhhg04j4AVuZ9Jd6BEzmZ0lUrTZsiBWhOyoXs/qFa6grTj mibA0ZkIgyQaz85Gm7zl7RFlQswZ/QSdmoB6Pk7Y/OQdHRLZfrHhOW0Yz 9OPobbdP/6HUgGmbCEQ2gH13uChre/Yn6MCK0LoiUVWjGbpBUh+WtaPHH 0Cjf/VB0/sn9nLKd1gq2ec/AuthDEocUIY/PIwIu7xpqhYkEeeesCMupQ PU3PsgtvOGGe/0PgIGqSt2yVrdY/cP+qzteU1w0Del/vi8hKkGXe19h0F mUVeZ1sUZmUYJBhrEo3QnyNN4gTJZAIOkcru3VEpJOSOF0r64exFtI6Bm g==; Received: from unknown (HELO mse.ite.com.tw) ([192.168.35.30]) by ironport.ite.com.tw with ESMTP; 06 Mar 2024 10:09:40 +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 42629cT7035623; Wed, 6 Mar 2024 10:09:38 +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; Wed, 6 Mar 2024 10:09:36 +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 v3 0/1] drm/bridge: it6505: fix hibernate to resume no display issue Date: Wed, 6 Mar 2024 10:20:02 +0800 Message-ID: <20240306022003.259245-1-kuro.chung@ite.com.tw> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [192.168.72.42] 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: 2DFA835B7C214D7669D99BAA3D584D1C5E99CA3D8F1D676F920BE02F59D14C3C2002:8 X-MAIL: mse.ite.com.tw 42629cT7035623 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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): drm/bridge: it6505: fix hibernate to resume no display issue drivers/gpu/drm/bridge/ite-it6505.c | 54 ++++++++++++++++++++++++----- 1 file changed, 45 insertions(+), 9 deletions(-)