From mboxrd@z Thu Jan 1 00:00:00 1970 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 A56CFC54EBE for ; Tue, 10 Jan 2023 09:20:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C2C9810E56F; Tue, 10 Jan 2023 09:20:30 +0000 (UTC) Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by gabe.freedesktop.org (Postfix) with ESMTPS id E73C910E56F for ; Tue, 10 Jan 2023 09:20:28 +0000 (UTC) Received: from [192.168.1.100] (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id C51C66602D6F; Tue, 10 Jan 2023 09:20:26 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1673342427; bh=g8LJ5B4rMDQV97cEiwnSy/f5QYjiF15lfCvnnH5n72k=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=MIjZ3lECCLCdFrjMcSHZqxDoDQhX+9fOc+uBgiIaeRF4QS4av3YE5Ulo2EP8kbeg7 dwg4uQpknuzd1yNOWl9cHdRqjHuYx93ZhI20G8xOh1DH+wa0wcyTluVjkPNU9OUfqg 1UdQKLDThtscSBOUrifp0bBug9gZpkxstJywG5V3MbxIneyaYCX8Wht7bW1Rpg+Gbu V4mHYQPVATOD60tn2zIW20C1/pl6vUFNz4jzLVJ+oCn0IzsY3lT3cLUaKJddc9vshX V8TXLUkKtfU3nHRUDT3Ivb0b6V5iLdljH2nM0YhacL0tijeiG/hEE3j7wOKRPSv3Gs MAzaJXyOuQsqw== Message-ID: <3b6c19a9-66ac-a18c-cb3b-144066077bd1@collabora.com> Date: Tue, 10 Jan 2023 10:20:24 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH v2 2/3] drm/panel: boe-tv101wum-nl6: Reduce lcm_reset to send initial code time Content-Language: en-US To: xinlei.lee@mediatek.com, chunkuang.hu@kernel.org, p.zabel@pengutronix.de, airlied@linux.ie, daniel@ffwll.ch, matthias.bgg@gmail.com, jitao.shi@mediatek.com, thierry.reding@gmail.com, sam@ravnborg.org References: <1673330093-6771-1-git-send-email-xinlei.lee@mediatek.com> <1673330093-6771-3-git-send-email-xinlei.lee@mediatek.com> From: AngeloGioacchino Del Regno In-Reply-To: <1673330093-6771-3-git-send-email-xinlei.lee@mediatek.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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: , Cc: linux-arm-kernel@lists.infradead.org, Project_Global_Chrome_Upstream_Group@mediatek.com, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Il 10/01/23 06:54, xinlei.lee@mediatek.com ha scritto: > From: Xinlei Lee > > Since the panel spec stipulates that the time from lcm_reset to DSI to > send the initial code should be greater than 6ms and less than 40ms, > so reduce the delay before sending the initial code and avoid panel > exceptions. Please change the commit title to describe what you're doing. drm/panel: boe-tv101wum-nl6: Remove extra delay in init commands ....and the commit description should also contain something like Reduce the delay after LCM reset by removing an extra delay in the initialization commands array. The required delay of at least 6ms after reset is guaranteed by boe_panel_prepare(). Regards, Angelo