From mboxrd@z Thu Jan 1 00:00:00 1970 From: boris.brezillon@free-electrons.com (Boris BREZILLON) Date: Fri, 25 Jul 2014 10:45:53 +0200 Subject: [PATCH] ARM: at91: at91sam9x5: sets NPCS0 (PA14) back to GPIO In-Reply-To: <53D214E1.4050105@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> Message-ID: <20140725104553.403921b1@bbrezillon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, 25 Jul 2014 10:27:13 +0200 Ji?? 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