From patchwork Tue Jun 4 02:44:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: kuro X-Patchwork-Id: 13684579 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 EFAEBC25B75 for ; Tue, 4 Jun 2024 02:33:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EAA8110E07F; Tue, 4 Jun 2024 02:33:40 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=fail reason="key not found in DNS" (0-bit key; unprotected) header.d=ite.com.tw header.i=@ite.com.tw header.b="GeCo7aEQ"; 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 B233910E07F for ; Tue, 4 Jun 2024 02:33:36 +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=ongMRIDR9OJ67FPX959hIpLFcH5SoR5ACjgPGkxuvD4=; b=GeCo7aEQ1VpT4jZAxcyOm1qtfTcaSRkOQb3oIQ6N4/RitTv91zl3v7p2 3FGdDznDNM1EOv6ggm/o8P58uuUH9jM+0iaQaA4pqsQAeTxDsHgMyo4LU 2rUzIQFszOSoJDTiExz0AFmd0n/dXA2fIa/lEMNmExebDLunacE2/LRGU epMgXb3CfMHRTKKI7mpB79qXpCnBAinbf5cw0dF7mES09w7oLBoMNEjJl I3+aujMj8ewG3WBTU0kH3UdyUXpy9/MFAmMFCwraWpRWSGXqD9+5GBmcu hGdwL27XEWvVES0OW17plPTFjXprC8+z7Dm/BGAGac0o+HaACJg6NEiLU g==; Received: from unknown (HELO mse.ite.com.tw) ([192.168.35.30]) by ironport.ite.com.tw with ESMTP; 04 Jun 2024 10:33:34 +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 4542XTSn057581; Tue, 4 Jun 2024 10:33:29 +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; Tue, 4 Jun 2024 10:33:28 +0800 From: kuro To: Pin-yen Lin , Kenneth Haung , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , , CC: Kuro Chung , Hermes Wu Subject: [PATCH v1] drm/bridge: it6505: update usleep_range for RC circuit charge time Date: Tue, 4 Jun 2024 10:44:05 +0800 Message-ID: <20240604024405.1122488-1-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: A32F6B6386882D419C459589941F989605B411FE5A98B4AC4E9B5DC4CAEDA3DC2002:8 X-MAIL: mse.ite.com.tw 4542XTSn057581 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" From: Kuro Chung The spec of timing between IVDD/OVDD and SYSRTEN is 10ms, but SYSRSTN RC circuit need at least 25ms for rising time, update for match spec Signed-off-by: Kuro Chung Signed-off-by: Hermes Wu --- drivers/gpu/drm/bridge/ite-it6505.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c index cd1b5057ddfb4..1e1c06fdf2064 100644 --- a/drivers/gpu/drm/bridge/ite-it6505.c +++ b/drivers/gpu/drm/bridge/ite-it6505.c @@ -2615,7 +2615,7 @@ static int it6505_poweron(struct it6505 *it6505) gpiod_set_value_cansleep(pdata->gpiod_reset, 0); usleep_range(1000, 2000); gpiod_set_value_cansleep(pdata->gpiod_reset, 1); - usleep_range(10000, 20000); + usleep_range(25000, 35000); } it6505->powered = true;