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[176.74.57.43]) by smtp.gmail.com with ESMTPSA id lb19-20020a170907785300b007c0a90663d5sm6010023ejc.162.2022.12.14.08.51.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Dec 2022 08:51:41 -0800 (PST) From: Robert Foss To: Neil Armstrong , Jonas Karlman , Laurent Pinchart , Jernej Skrabec , Pin-yen Lin , Andrzej Hajda Cc: Robert Foss , David Airlie , Daniel Vetter , allen chen , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH] drm/bridge: it6505: Add caching for EDID Date: Wed, 14 Dec 2022 17:51:33 +0100 Message-Id: <167103665890.995711.9267085599513513874.b4-ty@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221115112720.911158-1-treapking@chromium.org> References: <20221115112720.911158-1-treapking@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 15 Nov 2022 19:27:20 +0800, Pin-yen Lin wrote: > Add caching when EDID is read, and invalidate the cache until the > bridge detects HPD low or sink count changes on HPD_IRQ. > > It takes 1.2s for IT6505 bridge to read a 3-block EDID, and skipping > one EDID read would be a notable difference on user experience. > > > [...] Applied, thanks! Repo: https://cgit.freedesktop.org/drm/drm-misc/ [1/1] drm/bridge: it6505: Add caching for EDID (no commit info) rob 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 88648C4332F for ; Wed, 14 Dec 2022 16:51:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8B44310E03B; Wed, 14 Dec 2022 16:51:48 +0000 (UTC) Received: from mail-ed1-x52e.google.com (mail-ed1-x52e.google.com [IPv6:2a00:1450:4864:20::52e]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9347610E03B for ; Wed, 14 Dec 2022 16:51:43 +0000 (UTC) Received: by mail-ed1-x52e.google.com with SMTP id a16so23368582edb.9 for ; Wed, 14 Dec 2022 08:51:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=czD2rPOx9OiZcdJviML+H8nDE1bCxJVFDnkUjNKkP+g=; b=LEb7HZpqHNLosW6dXyA2OiFJA5bKjR1TN9jw+WfKLEhClD5CLL0XhnsrSv2L52/cU8 zJ+wJrRlHXk+bv9u/XHT+erWxwYGz7SC2xfPO0xfOdZDbHsV2ATwck18gEyxqOuAnYWY VLwmSwjjF5HXLbcNg2nLJiarnFZucgdCw6sX1jV9MfQdvWRe8L68Ku6Ft3KkBDcw7k5g C+enr++FiA8f1yNt19eONDe5kTEEeNMB8X3FFg1H7ZaFXS8thAkGk4SXh6T5eJCLxlgw CqW8QncumriceyvwjREh3FkFdovcNlbrqhcmzTtvYQbiNGXnyLylVXkkuAaji1hhelWr T9yQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=czD2rPOx9OiZcdJviML+H8nDE1bCxJVFDnkUjNKkP+g=; b=qmNmsiYm/N11BwCFp+0fkmJE6jD+8PWQ9ClxEOHG35dRluzKzNIYP+LfQnYX3kjD5x OfxeY4OLmS7UNVYJf/G/g5qJLWTgZffy977+pjhGtRmEfOZPnFvuwwP3CVaz9j9/E3SP vzYmQTvWd19X/A2RfFoegp3D1iOqvXzJcbLCnl0VG9CrfxDiEzPDUBWFvXbhtmcuxUFo EC0waprp3+WQV3QOPiKcLDOC3WumYtAKTKVX5QsjFfRLsPIJyn1PjqUp7byIfOvy9uzJ 4kOZxI7T0xG/Kyln/REQi4g9FAiuk/3YO0hpOqjdEBRngIAIrc3wdVi4sqnetr/Hug0M h43g== X-Gm-Message-State: ANoB5pkgi1fXv4jEM5566skQW9V/yGwCG2E9WRmmVCCVKiLjruhP+w8F eh2nPD/9JTbZXaWK5JuvFqCSzw== X-Google-Smtp-Source: AA0mqf6jNv3/NX9rm+O5/sllvALiPUWVimAqqQ0Ee8xAiZf4HNQ9uqqhxFGKpzX7BsoWPTZm1IGcHQ== X-Received: by 2002:a05:6402:110c:b0:46f:7453:a99d with SMTP id u12-20020a056402110c00b0046f7453a99dmr12178462edv.6.1671036702339; Wed, 14 Dec 2022 08:51:42 -0800 (PST) Received: from prec5560.. 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[176.74.57.43]) by smtp.gmail.com with ESMTPSA id lb19-20020a170907785300b007c0a90663d5sm6010023ejc.162.2022.12.14.08.51.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Dec 2022 08:51:41 -0800 (PST) From: Robert Foss To: Neil Armstrong , Jonas Karlman , Laurent Pinchart , Jernej Skrabec , Pin-yen Lin , Andrzej Hajda Subject: Re: [PATCH] drm/bridge: it6505: Add caching for EDID Date: Wed, 14 Dec 2022 17:51:33 +0100 Message-Id: <167103665890.995711.9267085599513513874.b4-ty@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221115112720.911158-1-treapking@chromium.org> References: <20221115112720.911158-1-treapking@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit 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: allen chen , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Robert Foss Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Tue, 15 Nov 2022 19:27:20 +0800, Pin-yen Lin wrote: > Add caching when EDID is read, and invalidate the cache until the > bridge detects HPD low or sink count changes on HPD_IRQ. > > It takes 1.2s for IT6505 bridge to read a 3-block EDID, and skipping > one EDID read would be a notable difference on user experience. > > > [...] Applied, thanks! Repo: https://cgit.freedesktop.org/drm/drm-misc/ [1/1] drm/bridge: it6505: Add caching for EDID (no commit info) rob