From patchwork Fri Jun 14 22:45:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthias Kaehlcke X-Patchwork-Id: 10996859 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2B56D14E5 for ; Fri, 14 Jun 2019 22:45:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 18DF228795 for ; Fri, 14 Jun 2019 22:45:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0873D287A6; Fri, 14 Jun 2019 22:45:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A597F28795 for ; Fri, 14 Jun 2019 22:45:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=gGjmdtdBe3IdlE27gfaEG2qWuPQ5LmOMXHd2nXrvOJI=; b=syzfJleioz74jh h0yRLTJTh14Ck1ToOZ+Onlxmhpn2dOoc5kHKX4xS0N8spJ4lxvv3zDUPAfC8OhYny1RhuMLm6yxmU J0TQEKeOwgJ/Pf/w+I8Zpp3A2d0lXx+OQ4XoxdXlBJnxMZS9vc1LxSbj4FBUjz3y96pW2aI8E1liO MihIHVMBxH2WSwVo7ODXnuXzao7tKZdmeUweGb+jY2cjk4Jz4yH+0QA3u7/kh4qbpxxv7e7TnGt5g w9/1yBlYtF8lK44M7fio3UkXMbe+jltsv9RgcjuWYm1aF5UoUzaistiH2SEpiYJHTN+FDmcOcpxBI SPw+sBMIKgl98hRVzMqw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hbuxB-0002EV-6U; Fri, 14 Jun 2019 22:45:49 +0000 Received: from mail-pf1-x441.google.com ([2607:f8b0:4864:20::441]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hbux7-0002D0-5x for linux-arm-kernel@lists.infradead.org; Fri, 14 Jun 2019 22:45:46 +0000 Received: by mail-pf1-x441.google.com with SMTP id m30so2229204pff.8 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=jpw4FkShQ5ZC/qJv6BCUXRlCUz7pzwYkepklXis0YepSONTWker0ekeEBmBFpNsjWZ /DyPs93fd7uGl7TeabDbNuKYeuiqPQuWzknczsTG6AuxkIzSUDDm8h/7Wb4gNOFi5wfW zSiZG++CQO8i6Tt5FEuyyDmmFXbI+Tm15PbxEHuABlZtDubgbX/0F7BFyvyXLWf3j/Xy SDsHov4ovqtze6ofC2SaJcMLXyRuPNyFuYWtUwzU1j9sD5kOsXtdez9LRn4Ehv7xojhx yIWWFLRKAnnXtS1DBcC6w/ikOV+NVW151JVqUGafTzUHTe2u/JftbrO6nXrtxjzBveAI 4Saw== X-Gm-Message-State: APjAAAVAUNF+h+MZTAHmdwr4VjgFdP6ePXiSHFY9xw+unSLMHUnjJk+n mdS1btbCLILtvKFP5+2UU4PDnTrKQk8= 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190614_154545_250358_2622B466 X-CRM114-Status: UNSURE ( 9.78 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Douglas Anderson , linux-rockchip@lists.infradead.org, Matthias Kaehlcke , Pavel Machek , Enric Balletbo i Serra , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP 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 Reviewed-by: Enric Balletbo i Serra --- 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 {