From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Jarzmik Subject: Re: [PATCH v2 16/21] ARM: pxa: magician: Add support for alternative LCD backlight Date: Thu, 20 Aug 2015 22:01:50 +0200 Message-ID: <878u95685t.fsf@belgarion.home> References: <55D25A60.7000900@tul.cz> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <55D25A60.7000900@tul.cz> (Petr Cvek's message of "Tue, 18 Aug 2015 00:04:16 +0200") Sender: linux-leds-owner@vger.kernel.org To: Petr Cvek , philipp.zabel@gmail.com Cc: daniel@zonque.org, haojian.zhuang@gmail.com, sameo@linux.intel.com, lee.jones@linaro.org, cooloney@gmail.com, rpurdie@rpsys.net, j.anaszewski@samsung.com, linux@arm.linux.org.uk, sre@kernel.org, dbaryshkov@gmail.com, dwmw2@infradead.org, linux-leds@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: linux-pm@vger.kernel.org Petr Cvek writes: > Add support for alternative LCD backlight with GPIO (no brightness). Here, I don't understand, the commit message is too short. Are there 2 brightness controls on magician, or are these 2 different magicians (hardware wise), each having a different backlight control ? Or is it there is a GPIO to light up the screen and a PWM backlight ? I have to understand first. Cheers. -- Robert