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=-3.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 DABDCC433E0 for ; Wed, 8 Jul 2020 10:27:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B4E4420739 for ; Wed, 8 Jul 2020 10:27:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="cYRbqZVH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728208AbgGHK17 (ORCPT ); Wed, 8 Jul 2020 06:27:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726110AbgGHK16 (ORCPT ); Wed, 8 Jul 2020 06:27:58 -0400 Received: from mail-wr1-x444.google.com (mail-wr1-x444.google.com [IPv6:2a00:1450:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E34EC08C5DC for ; Wed, 8 Jul 2020 03:27:58 -0700 (PDT) Received: by mail-wr1-x444.google.com with SMTP id b6so48303212wrs.11 for ; Wed, 08 Jul 2020 03:27:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=IjRLQcB/4vsfzip3HVsy3f1EfgWLrW+oCCHpaSHPM5c=; b=cYRbqZVHU+UGIQlbnx2Z5rmgwiAPzRJ5N1+U36opxHfpvlIY3E31tyKInXlALdp3QI D5TmwUT1LptThFMNF9zSN1OE3DLhWbhGI6tJPoZHf9PjxtfXK20kXBKr8rfLnEzpwhbB r4DuMxt0LWDZEE63w9arcO2g80YOsvUOgTLc9Y/VcHf4L5yXVxJtaJKxqW0lNz1/94VS X/hYdJvBhOR8nBwM2XD4LF33Q4bOL/g1uwUVK64widIlTYqUUNU/c/f8Qh8ejW7MOcYu 3Bv1BzW0q3ZwBaJt5Bo//HpZ0UY1i0WQYQb04QiU8P+e0G6FCUFj9t/DhbXbVuOabf82 fjXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=IjRLQcB/4vsfzip3HVsy3f1EfgWLrW+oCCHpaSHPM5c=; b=UzH6IseINeWthAMNeZgAMxktraf8aTOQod7YhZsljnhZ7EBeUwF077l6H7aTJfLOH1 EexL/CJkg/hxrlnMjEWg+iPqWfjoDPmtIE3qOZuae9u8UyKivE5SiK9fS8CPOgvIyQVd mEk9g+TeHPjIs7qMwsSVsQ12HlS5zOlWff6YLnsa4ORWhPOJXYIA3pF5+ARGeBGWdn7Y 0wUX/MpToYpAtJ+WFGieo3pgFlUGl/l/PuhfZ+TnkkY0BDa5w+LhpmVqbIGr05jB0MEO Ak/bQcp691lOtTN3ItcyS7euvspcgoViQLzOny9Lc5tPcfViaFg9TNqJe71Qt8yTR1uC Aijw== X-Gm-Message-State: AOAM5325HJQddhvWTMipPPNfX4/5/Lh0LhGMj8ijmnQepTC6U2p8voeO rtedWc8/kEBPQSxOckLwsiUIeg== X-Google-Smtp-Source: ABdhPJz8knJVMMHfdPyGODA0TU0pv+HqKuQmmHYQntVTJaq/7zqxDlg0gT38DnQ+pHOidlry7bhcgA== X-Received: by 2002:a5d:60d0:: with SMTP id x16mr59423071wrt.5.1594204077283; Wed, 08 Jul 2020 03:27:57 -0700 (PDT) Received: from holly.lan (cpc141214-aztw34-2-0-cust773.18-1.cable.virginm.net. [86.9.19.6]) by smtp.gmail.com with ESMTPSA id a2sm5179262wrn.68.2020.07.08.03.27.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Jul 2020 03:27:56 -0700 (PDT) Date: Wed, 8 Jul 2020 11:27:54 +0100 From: Daniel Thompson To: Sam Ravnborg Cc: dri-devel@lists.freedesktop.org, Jingoo Han , Lee Jones , Andy Gross , Bartlomiej Zolnierkiewicz , Bjorn Andersson , Daniel Vetter , David Airlie , Emil Velikov , Jonathan Corbet , linux-arm-msm@vger.kernel.org, linux-pwm@vger.kernel.org, Maarten Lankhorst , Maxime Ripard , Michael Hennerich , patches@opensource.cirrus.com, Support Opensource , Thierry Reding , Thomas Zimmermann , Uwe Kleine-Konig , Peter Ujfalusi , Tomi Valkeinen Subject: Re: [PATCH v4 12/20] backlight: introduce backlight_get_brightness() Message-ID: <20200708102754.x3afazd7kbldjg2n@holly.lan> References: <20200703184546.144664-1-sam@ravnborg.org> <20200703184546.144664-13-sam@ravnborg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200703184546.144664-13-sam@ravnborg.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Fri, Jul 03, 2020 at 08:45:38PM +0200, Sam Ravnborg wrote: > Based on an idea from Emil Velikov > add a helper that checks backlight_is_blank() and return 0 as brightness > if display is blank or the property value if not. > > This allows us to simplify the update_status() implementation > in most of the backlight drivers. > > Signed-off-by: Sam Ravnborg > Cc: Emil Velikov > Cc: Lee Jones > Cc: Daniel Thompson > Cc: Jingoo Han Reviewed-by: Daniel Thompson