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 X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5697C31E4E for ; Fri, 14 Jun 2019 22:45:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B541921848 for ; Fri, 14 Jun 2019 22:45:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="E73Caugs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726551AbfFNWpp (ORCPT ); Fri, 14 Jun 2019 18:45:45 -0400 Received: from mail-pf1-f194.google.com ([209.85.210.194]:46723 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725972AbfFNWpo (ORCPT ); Fri, 14 Jun 2019 18:45:44 -0400 Received: by mail-pf1-f194.google.com with SMTP id 81so2220661pfy.13 for ; Fri, 14 Jun 2019 15:45:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=CmE6N4JKzhXb5lHoVXsuD5qj8tmeCrMDzU4ePEIWm0Y=; b=E73CaugswLEoSnRUob/BsIpit8Tpx/hMYrnG1PMqIuPtY3H8B5BMGazNT5uoypDBWx osOLOrWmYS78KuZdurwrMG5aU1Y229O/IYHb/YcPh8YQIb9gbtbFQLqx5utdsF24L0cP CMPNavVjwHgO3gIr+WTWuV2HWsmZ2/Og89tlk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=CmE6N4JKzhXb5lHoVXsuD5qj8tmeCrMDzU4ePEIWm0Y=; b=ddyHeCCSauGI8cwoAKmFZ8SB+lFwSy1/EaNQCd4Nh9lvAnht3tQLNyZDmca7bkQM1O tuU9F3o1dxerBkRzJR5JyjKzIe2TngS7pQjgzuIEeXQgKYnkNPQp56+MIIjl82omPKdb ey6osF6T3Ly5SLDO8MID8mUScEW0FyfGIGCkH86VzDLjJLxRK20BQ1uOmqJuDU+doDHP diqsMnONtzYfBPjpUzrXet//hks5cfHpDUb1JCF5yuxafQkx1gsiNvo8XiIUKqfkpWnE vAPWhB+jDz7zEXWJy8sV6J+TzQVlRUifI8QfW5f8v8LXNbv2Jgkfod2P3m/E5xRuDXDw pjQA== X-Gm-Message-State: APjAAAX+FhXSevFZ5u6IS05WvdzfOlDAH3XMZ5M2mlqHeIfy4ZIi3IMx dQO8RzWMhj3qs1WpF0HMZsmXhQ== X-Google-Smtp-Source: APXvYqyN12JRzQIV0hm4tLUoGW9KOz1B4YaxPa5FrSR+r+v1H8arhpYH9PjobRBRAWHrn53K5WiajQ== X-Received: by 2002:a17:90a:37ac:: with SMTP id v41mr12841194pjb.6.1560552344085; Fri, 14 Jun 2019 15:45:44 -0700 (PDT) Received: from localhost ([2620:15c:202:1:75a:3f6e:21d:9374]) by smtp.gmail.com with ESMTPSA id x129sm4099537pfb.29.2019.06.14.15.45.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 14 Jun 2019 15:45:43 -0700 (PDT) From: Matthias Kaehlcke To: Heiko Stuebner , Rob Herring , Mark Rutland Cc: linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Enric Balletbo i Serra , Pavel Machek , Douglas Anderson , Matthias Kaehlcke Subject: [PATCH] Revert "ARM: dts: rockchip: set PWM delay backlight settings for Minnie" Date: Fri, 14 Jun 2019 15:45:33 -0700 Message-Id: <20190614224533.169881-1-mka@chromium.org> X-Mailer: git-send-email 2.22.0.410.gd8fdbe21b5-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This reverts commit 288ceb85b505c19abe1895df068dda5ed20cf482. According to the commit message the AUO B101EAN01 panel on minnie requires a PWM delay of 200 ms, however this is not what the datasheet says. The datasheet mentions a *max* delay of 200 ms for T2 ("delay from LCDVDD to black video generation") and T3 ("delay from LCDVDD to HPD high"), which aren't related to the PWM. The backlight power sequence does not specify min/max constraints for T15 (time from PWM on to BL enable) or T16 (time from BL disable to PWM off). Signed-off-by: Matthias Kaehlcke --- Enric, if you think I misinterpreted the datasheet please holler! --- arch/arm/boot/dts/rk3288-veyron-minnie.dts | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm/boot/dts/rk3288-veyron-minnie.dts b/arch/arm/boot/dts/rk3288-veyron-minnie.dts index 468a1818545d..28cbe07f96ec 100644 --- a/arch/arm/boot/dts/rk3288-veyron-minnie.dts +++ b/arch/arm/boot/dts/rk3288-veyron-minnie.dts @@ -86,8 +86,6 @@ 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255>; power-supply = <&backlight_regulator>; - post-pwm-on-delay-ms = <200>; - pwm-off-delay-ms = <200>; }; &emmc { -- 2.22.0.410.gd8fdbe21b5-goog