From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Varnin Subject: Re: Help connect s3c2410-lcd device to SMDK2443 Date: Fri, 08 Feb 2013 03:43:28 +0400 Message-ID: <51143C20.1050704@mail.ru> References: <51115F34.8030503@mail.ru> <201302052317.44431.heiko@sntech.de> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from fallback1.mail.ru ([94.100.176.18]:53662 "EHLO fallback1.mail.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422758Ab3BGXod (ORCPT ); Thu, 7 Feb 2013 18:44:33 -0500 In-Reply-To: <201302052317.44431.heiko@sntech.de> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: =?UTF-8?B?SGVpa28gU3TDvGJuZXI=?= Cc: linux-samsung-soc@vger.kernel.org 06.02.2013 02:17, Heiko St=C3=BCbner =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > Hi Alexander, > > Am Dienstag, 5. Februar 2013, 20:36:20 schrieb Alexander Varnin: >> Hello. I'm trying to setup "s3c2410-lcd" device on SMDK2443 with 3.6 >> kernel. On requesting interrupt it fails with EINVAL: >> ~ # dmesg | grep lcd >> s3c2410-lcd s3c2410-lcd: cannot get irq 32 - err -22 >> s3c2410-lcd: probe of s3c2410-lcd failed with error -16 > If I remember correctly the s3c2443 has a new-style framebuffer. So u= sing the > s3c2410-fb/lcd driver is the wrong approach. The correct driver to us= e would > be the s3cfb. > > Take a look at mach-smdk2416.c which uses this driver. The init for t= he > s3c2443 should probably be similar. > > > Also the irq you requested is a parent irq to different lcd-irqs in t= he sub- > register on the s3c2443 and s3c2416. Therfore requesting it directly = is > disabled by the irq-subsystem. > > > Hope that helps > Heiko Thank you for help. I have used s3c-fb driver and all is ok. > >> The interrupt is not busy by something else. Here is my table: >> ~ # cat /proc/interrupts >> CPU0 >> 17: 0 s3c-ext0 s3c-mci >> 30: 409934 s3c S3C2410 Timer Tick >> 37: 0 s3c s3c-mci >> 42: 416 s3c ohci_hcd:usb1 >> 43: 0 s3c s3c2410-i2c >> 56: 1 s3c-ext uio_mcross >> 57: 72585 s3c-ext eth0 >> 73: 63 s3c-uart1 s3c2440-uart >> 74: 108 s3c-uart1 s3c2440-uart >> 97: 0 - s3c2410-wdt >> Err: >> >> Please, help me to find the reason. > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsu= ng-soc" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html