Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759959AbaGYJBk (ORCPT ); Fri, 25 Jul 2014 05:01:40 -0400 Received: from top.free-electrons.com ([176.31.233.9]:54132 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750818AbaGYJBi convert rfc822-to-8bit (ORCPT ); Fri, 25 Jul 2014 05:01:38 -0400 Date: Fri, 25 Jul 2014 11:01:24 +0200 From: Boris BREZILLON To: jiri.prchal@aksignal.cz Cc: Bo Shen , nicolas.ferre@atmel.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH] ARM: at91: at91sam9x5: sets NPCS0 (PA14) back to GPIO Message-ID: <20140725110124.3f0dce6c@bbrezillon> In-Reply-To: <53D21B3F.7060006@aksignal.cz> References: <1405074175-22444-1-git-send-email-voice.shen@atmel.com> <53D10C50.50305@aksignal.cz> <20140724162645.4e19c26c@bbrezillon> <53D12103.3020103@aksignal.cz> <20140724175848.44f5da10@bbrezillon> <53D1F5D0.1080006@aksignal.cz> <20140725095319.16a8465c@bbrezillon> <53D214E1.4050105@aksignal.cz> <20140725104553.403921b1@bbrezillon> <53D21B3F.7060006@aksignal.cz> X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.20; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 25 Jul 2014 10:54:23 +0200 Jiří Prchal wrote: > Here it is: > cat /sys/kernel/debug/gpio > GPIOs 0-31, platform/fffff400.gpio, fffff400.gpio: > [in20] GPIOfffff400.gpio3: [gpio] set > [spi0.3] GPIOfffff400.gpio14: [gpio] set > [in19] GPIOfffff400.gpio21: [gpio] set > [spi0.1] GPIOfffff400.gpio22: [gpio] set > [spi0.0] GPIOfffff400.gpio23: [gpio] set > [in18] GPIOfffff400.gpio28: [gpio] set > [out20] GPIOfffff400.gpio29: [gpio] clear > [out18] GPIOfffff400.gpio30: [gpio] clear > [out19] GPIOfffff400.gpio31: [gpio] clear > > GPIOs 32-50, platform/fffff600.gpio, fffff600.gpio: > [blue] GPIOfffff600.gpio12: [gpio] set > [gsm_on] GPIOfffff600.gpio13: [gpio] clear > [yellow] GPIOfffff600.gpio14: [gpio] clear > [gsm_rst] GPIOfffff600.gpio15: [gpio] clear > [green] GPIOfffff600.gpio16: [gpio] clear > [red] GPIOfffff600.gpio18: [gpio] clear > > GPIOs 64-95, platform/fffff800.gpio, fffff800.gpio: > [in17] GPIOfffff800.gpio16: [gpio] set > [in13] GPIOfffff800.gpio18: [gpio] set > [in14] GPIOfffff800.gpio20: [gpio] set > [por] GPIOfffff800.gpio25: [gpio] clear > [out16] GPIOfffff800.gpio26: [gpio] clear > [out15] GPIOfffff800.gpio28: [gpio] clear > [spi0.2] GPIOfffff800.gpio29: [gpio] set > [out17] GPIOfffff800.gpio30: [gpio] clear > > GPIOs 96-117, platform/fffffa00.gpio, fffffa00.gpio: > [nand_enable] GPIOfffffa00.gpio4: [gpio] set > [nand_rdy] GPIOfffffa00.gpio5: [gpio] set > [atmel_usba_udc] GPIOfffffa00.gpio21: [gpio] clear > Every thing seems in place. Could you enable CONFIG_DEBUG_PINCTRL and grep on "enable pin" ? > > Dne 25.7.2014 v 10:45 Boris BREZILLON napsal(a): > > On Fri, 25 Jul 2014 10:27:13 +0200 > > Jiří Prchal wrote: > > > > [...] > >> > >> > >>> Could you also paste the content of /sys/kernel/debug/gpio ? > >> The /sys/kernel/debug/ is empty. > > > > You have to enable CONFIG_DEBUG_FS in your config and then mount the > > debug file system: > > > > #mount -t debugfs dbg /sys/kernel/debug > > > > > > > > -- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/