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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 DBA65C10F14 for ; Thu, 10 Oct 2019 21:24:36 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A0AB9206B6 for ; Thu, 10 Oct 2019 21:24:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="G/NGEmex" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A0AB9206B6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sntech.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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:References:In-Reply-To: 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: List-Owner; bh=fK5ZuNyB6hw0OCyRVdsakdeLGlto8xCrT+bxq//sLiM=; b=G/NGEmexH7afFN hdz/i9dHDeVAgH08b+aJzFfP+kpO5JTWPFpeO0N5dd+oca10Hx2hR9ReQYo73yAOFIRfcRTk0bxIG 7Zv5Iy0YME4hF9mdHtgwrWJR4VirAQk9/Nvd094LlDkKFsq2Ng+stMo+2MEtVWbEtaArQXu7080N9 9KUbJhXQDfd44M1s9523ioEpGBLazDut3XI3xdpkAOQTpGvUJG77cSsu/o7aschw1P7vjdDEI1fq4 cHgbE6ewnBekZtyeVr0NUHbHjlHlfoRrg3gcAXRNirTGTBryrwH3lbkoPcI5VoCY9thYw9vas+kfq icB/xHW+WavKaJcqp3qA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iIfvD-0005HP-3m; Thu, 10 Oct 2019 21:24:31 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iIfud-0004rs-E9; Thu, 10 Oct 2019 21:24:02 +0000 Received: from ip5f5a6266.dynamic.kabel-deutschland.de ([95.90.98.102] helo=phil.localnet) by gloria.sntech.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iIfuX-000786-Im; Thu, 10 Oct 2019 23:23:49 +0200 From: Heiko Stuebner To: Matthias Kaehlcke Subject: Re: [PATCH v2] ARM: dts: rockchip: Use interpolated brightness tables for veyron Date: Thu, 10 Oct 2019 23:23:48 +0200 Message-ID: <3947291.Wl2KGcTfji@phil> In-Reply-To: <20191003094137.v2.1.Ic9fd698810ea569c465350154da40b85d24f805b@changeid> References: <20191003094137.v2.1.Ic9fd698810ea569c465350154da40b85d24f805b@changeid> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191010_142355_737258_6EF862C1 X-CRM114-Status: GOOD ( 11.65 ) 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: Mark Rutland , devicetree@vger.kernel.org, Douglas Anderson , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Rob Herring , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Am Donnerstag, 3. Oktober 2019, 18:41:52 CEST schrieb Matthias Kaehlcke: > Use interpolated brightness tables (added by commit 573fe6d1c25 > ("backlight: pwm_bl: Linear interpolation between > brightness-levels") for veyron, instead of specifying every single > step. Some devices/panels have intervals that are smaller than > the specified 'num-interpolated-steps', the driver interprets > these intervals as a single step. > > Another option would be to switch to a perceptual brightness curve > (CIE 1931), with the caveat that it would change the behavior of > the backlight. Also the concept of a minimum brightness level is > currently not supported for CIE 1931 curves. > > Signed-off-by: Matthias Kaehlcke applied for 5.5 Thanks Heiko _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel