Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp411812pxu; Tue, 1 Dec 2020 14:37:58 -0800 (PST) X-Google-Smtp-Source: ABdhPJwN7kA0BIhbttp7d0D2ztDjTBo2VWHuw1Le7MP20iSC6+Qsww6yBmjdW2o/aJpm3MkbHJ2H X-Received: by 2002:a50:fe0e:: with SMTP id f14mr1176099edt.159.1606862277858; Tue, 01 Dec 2020 14:37:57 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1606862277; cv=none; d=google.com; s=arc-20160816; b=X8trX5ckx9AUOdiy5ljPIkibvM6rGAkmkzcGdVD3/wC0d02qzfhebiz/Tr1/d47feo +eYjUgSo1iWmh7IF2ShrYQrj3j06UG341zfaLBO+vensgclDyuGmXOJJb9/X/a2fGX+v J6JpX7DcnKQnFnny9AstvAN3xwrT63KjbRx0AhgNtZf67ZXpwwedWvzeUmYc3ucx0OAg gZDvZXWPuWvW7N8NwPF13djqBpcLdud8EvVGgmVUdoCskrmJ6dOU4J7fQFuzCpsgWQYH N6NVKzh22N55XWhk15kjZ01v8NBYK4Kc/YIKiHdXmKXjbsdmSp8q5ztmgw+7PYjwzJd8 l3zg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:subject:message-id:date:from:in-reply-to :references:mime-version:dkim-signature; bh=iM9l8tgZXRGlISc4oqNIJMMb7GstcP8ZH/OdjOUcDS8=; b=ISPKfS9/xhLH07OLYJrCmklLdLVDHF98zd0Yz6SsExtVBL/fx7GwAFXCpBj9a+mvK/ RBfhRx5SeNGkpv4JPfZdJSCSeE1+Vj6f+d/BFoDzjb3r4BrmStQeKdlWnSJ6FIf5xdNe wdD3Zp0XBXy1Dn/0p5K3eejZDnA8qeIzSmNNsE5jVzVB26cvAw/yHMQ6dEbh2pELZSx6 0LbHkyoiv8ylwKxPf79s1xj75QLV64XipHAnWssSDkavTg/TrSg2esx6JUKFU6rvihwD JPKysncqHqtT7qZ3d1bjkQgqPC0xY9P9RWzGXCfWNdcdwyA1rllJQcrWw+GBsrEjrfFl Xodw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=W9eHUZGN; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id q5si782333ejr.681.2020.12.01.14.37.35; Tue, 01 Dec 2020 14:37:57 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=W9eHUZGN; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391812AbgLAQ41 (ORCPT + 99 others); Tue, 1 Dec 2020 11:56:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389756AbgLAQ41 (ORCPT ); Tue, 1 Dec 2020 11:56:27 -0500 Received: from mail-vs1-xe35.google.com (mail-vs1-xe35.google.com [IPv6:2607:f8b0:4864:20::e35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E0E9CC0613D4 for ; Tue, 1 Dec 2020 08:55:46 -0800 (PST) Received: by mail-vs1-xe35.google.com with SMTP id u7so1274268vsq.11 for ; Tue, 01 Dec 2020 08:55:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=iM9l8tgZXRGlISc4oqNIJMMb7GstcP8ZH/OdjOUcDS8=; b=W9eHUZGNvxYAvC2psNE8PfsPB4W0GsE5CEwo2Pdz1pivePDNSr9LLt9Gc/VXr1O8hA lbzwYxty5SyyRg67oWBBDGDemV96+a8EcKEFG7fHYCEWhlklFkb1GZ0q9Q9XeF+j/uiD G0V8idBEgPv+U9wgGCrejHNAGqCeuKCNar9yIStVO+E3XaEhA9fQt+KG/wZgixDfdN2k n+ERR4icbMBNnR4bNQD8YBXJJYxhmYVsutnAoBk0qlemTIWksxvkBuTISIAzXDEZR+5x Hn1FLEfQAvOvoNNw2vllmax5GRIU0ySSCIDwZz5HCxO4HjAyyaPZyQK5rSs8DfKHWRAv kdyw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=iM9l8tgZXRGlISc4oqNIJMMb7GstcP8ZH/OdjOUcDS8=; b=EWxOLgJtBNFaeVaQJCw/0qRISfkXZPOMyKZGWb6n7vTP5pcpou9/FzRyAy4WL9EUl+ SqKOu4P2fnniWLIOe3pDMtrfuOi6BVElG6xT+8GcGYQW1dWMyZoUIjyPBCk2iMDBERV/ jUHhUj/vdmiRGqBn7feB4bWAZRnmQcFM46MMfGJvVc+2GcRbqWsrlmrtQfzC2KAvegsp 6p3MEAzKsbUgOsg6Afs+JatgyVDG5lTbDAxwRaUbQgzqPJfVYsSKKChWm0St+/Q19JUn XwnCAqe/V6WQaQt6te6NY9QrPXAEdi2XHJP4ZZ7I554v5aTltcWLalAH4aXu98V6+Ikd qshg== X-Gm-Message-State: AOAM531dTWehaK2RaJz/aPQqU024qr5gSyrWRIXK+NCraLKeTpeRjl73 FHamJ4NEDlhL9B1QiXZNwA7+ChhTTfy6vS6tqa8= X-Received: by 2002:a67:e43:: with SMTP id 64mr3592393vso.40.1606841745952; Tue, 01 Dec 2020 08:55:45 -0800 (PST) MIME-Version: 1.0 References: <2D7916FA-678F-4236-B478-C953CADF2FFA@goldelico.com> <4AC29229-9542-4E77-B993-217E29C7E209@goldelico.com> <20201201121620.GB5239@sirena.org.uk> <6283C16F-549C-4463-BC08-E2C1A1D78B2F@goldelico.com> <20201201174433.2000c8a3@aktux> In-Reply-To: <20201201174433.2000c8a3@aktux> From: Sven Van Asbroeck Date: Tue, 1 Dec 2020 11:55:34 -0500 Message-ID: Subject: Re: [Letux-kernel] [BUG] SPI broken for SPI based panel drivers To: Andreas Kemnade Cc: Discussions about the Letux Kernel , "H. Nikolaus Schaller" , Linus Walleij , Mark Brown , kernel list , Laurent Pinchart Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andreas, On Tue, Dec 1, 2020 at 11:44 AM Andreas Kemnade wrote: > > So if that one is really active-low, why did it ever work?! Because the spi gpio chipselect was broken (inverted), and 766c6b63aa04 ("spi: fix client driver breakages when using GPIO descriptors") fixes it.