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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93894C001DE for ; Fri, 11 Aug 2023 19:35:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231685AbjHKTfr (ORCPT ); Fri, 11 Aug 2023 15:35:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45336 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229518AbjHKTfq (ORCPT ); Fri, 11 Aug 2023 15:35:46 -0400 X-Greylist: delayed 349 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Fri, 11 Aug 2023 12:35:46 PDT Received: from dd15738.kasserver.com (dd15738.kasserver.com [85.13.151.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8BB6E30F2 for ; Fri, 11 Aug 2023 12:35:46 -0700 (PDT) Received: from [192.168.178.53] (ip-005-147-048-170.um06.pools.vodafone-ip.de [5.147.48.170]) by dd15738.kasserver.com (Postfix) with ESMTPSA id 7E0CA5B00177 for ; Fri, 11 Aug 2023 21:29:55 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ka-long.de; s=kas202303071036; t=1691782195; bh=YJRQ3cgZpgVFqnqD+fBeeL5nHiXy8cRmZCqJ+1e2vq0=; h=Date:To:From:Subject:From; b=Ij3NJLIG0VOgFOiJs5oki35evw7zLK0fmP1mR0msmZbJY/4EjojHjisedm+B8zeG2 k38iJu3VIEZwZb0pl4Jm691BT0AZQHkH/GlZqYrAYRJ0cb/hdtvNPMOj9hROmpxhuZ nWJDjNl90OhxC6CZZoE6xhAg0MGaXhpriGBFIIh7bpAKhg619wPT6fmyIVaD/IfwRC UcEe0T1KVGd9Ic4KeMuq9pt7OfAPxLCRw8J6UReWBnMb62McB/YhFfULpge5vMB8GE SXUp9y4CyaIh+CrLxxOheUhLebmd+BtywwSHgkPR1ubuHbOZKoc/goUaN61fogvO/E a1euAWPo8HXDA== Message-ID: <449cbce3-71e1-daab-1673-d6c89738acd0@ka-long.de> Date: Fri, 11 Aug 2023 21:29:54 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 To: linux-input@vger.kernel.org Content-Language: en-US From: Niels Petter Subject: Goodix GT911 - no /dev/input Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spamd-Bar: / Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Hi folks, I have problems driving a spi screen with i2c touch gt911. I was able to get it working on a raspberry pi. I am familiar with device trees, kernel config,compiling kernels, c/c++ etc. I am working now on a NXP LX2160A headless platform. Using NXP Kernel git tag LSDK-21.08 (also tested lf-6.1.1-1.0.0). Kernel is configured with "make defconfig lsdk.config" and menuconfig evdev and goodix touch screen support (and st7789v). Device tree is configured. OS is bootstrapped debian stable, maybe something is missing here ... dmesg shows that touch is found and registered under /platform/device something ... The console is shown on the display. I know that did not mean anything. But there is no /dev/input directory. I double checked everything again. Only thing I am not 100% sure about at the moment is if the IRQ pin configured is the right one. Could this lead to a not under /dev/input registered device ? Maybe an udev rule is missing (missing debian packet)  ? Or do I need to create /dev/input with mknod manually ? Everything else on I2C / SPI is working as expected. Any  ideas ? Thanks Niels