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 51479C43217 for ; Tue, 8 Feb 2022 17:20:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1383983AbiBHRUF (ORCPT ); Tue, 8 Feb 2022 12:20:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1383870AbiBHRUB (ORCPT ); Tue, 8 Feb 2022 12:20:01 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 35130C06129A for ; Tue, 8 Feb 2022 09:20:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1644340799; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gvtYV1w2OGJoib9qyPYwsPmSmom8EsfjJ6qIk3HrlMg=; b=GTKz7n8Z9pRiMrxlwXmfbsLPhgBVRXFTXaK65uyWiHLYQixlqHwB2PSgiA2jEVmoAKkYAH K4n1+cfZ2edo85MbkvmNxAEwtxR00L/GgDm0Fm+KmCVkYc6nKafkc7NLZ0Gl1m+fzI6tof nF5ctuQB/jE186AvPm9r4KGBcjvwa3U= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-331-QSurvevTNXCVzDSaPyGvzg-1; Tue, 08 Feb 2022 12:19:58 -0500 X-MC-Unique: QSurvevTNXCVzDSaPyGvzg-1 Received: by mail-wr1-f71.google.com with SMTP id w26-20020adf8bda000000b001e33dbc525cso835166wra.18 for ; Tue, 08 Feb 2022 09:19:57 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:from:to:cc:references:in-reply-to :content-transfer-encoding; bh=gvtYV1w2OGJoib9qyPYwsPmSmom8EsfjJ6qIk3HrlMg=; b=oJOqUR90wgszyG/zDRLjZ6KJCbbDnKcndMTKRnjPPYuiB2UOajUf2xrHQtSa7dFpTu 2lS0bhGsM4g+iUv8yPW4K/Vn+CjwZfyjxlYuWcOlMZYkUTwvZwwwTvLiRpqCWOPZrfHw W8s1Aw9eR9SYqY6neIm5mUIbY+dha5kbp7VH7x7kN7i9k1ANc/aiCKFPht3Y1UX1hE+4 2000BbLOG7BsYKNBBGiZdJQHXSUcj1piFbUCTSh2Ki7EeXcGNnqBMs2fBR94VQOmilDU b1iXjvrNIC35AXwJEE1we8K3D8fbD5/e2i7cMHkTCruBVHmj6tPAP+1ZhaMIBNg10PMg i5Fg== X-Gm-Message-State: AOAM533Kuzj43bwBWgdA3H51zQyFOVedZGFeyM7A3nAHW9FtVAOgtSbR xOngdDPGSN/4qj29i7mwuFEOp50mflUvxJF/nXmp9yjYIEtaY8l1pfEnI8jcQ21lBq618eLX1Rv qNximiF1vefoxj75k+6euaZee X-Received: by 2002:a05:600c:4e4f:: with SMTP id e15mr1970600wmq.53.1644340796908; Tue, 08 Feb 2022 09:19:56 -0800 (PST) X-Google-Smtp-Source: ABdhPJyCtP21kxl63t75zqIHQ/e55SNAp8JmtgJLzIfz68aaypGLhZPiKZoSOCdl+lNIIxOdEqmTpg== X-Received: by 2002:a05:600c:4e4f:: with SMTP id e15mr1970578wmq.53.1644340796715; Tue, 08 Feb 2022 09:19:56 -0800 (PST) Received: from [192.168.1.102] ([92.176.231.205]) by smtp.gmail.com with ESMTPSA id h17sm2393719wmm.15.2022.02.08.09.19.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Feb 2022 09:19:56 -0800 (PST) Message-ID: Date: Tue, 8 Feb 2022 18:19:54 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH v2 0/4] drm/tiny: Add driver for Solomon SSD1307 OLED displays Content-Language: en-US From: Javier Martinez Canillas To: Geert Uytterhoeven Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Linux Fbdev development list , Linux PWM List , David Airlie , Daniel Vetter , Mark Brown , Linux Kernel Mailing List , DRI Development , Liam Girdwood , Rob Herring , =?UTF-8?Q?Noralf_Tr=c3=b8nnes?= , Thierry Reding , Maxime Ripard , Thomas Zimmermann , =?UTF-8?Q?Uwe_Kleine-K=c3=b6nig?= , Lee Jones , Andy Shevchenko , Sam Ravnborg References: <20220204134347.1187749-1-javierm@redhat.com> <02d5b225-e1a8-77f6-7e4e-18d6a1df5e48@redhat.com> In-Reply-To: <02d5b225-e1a8-77f6-7e4e-18d6a1df5e48@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/8/22 16:40, Javier Martinez Canillas wrote: > On 2/8/22 16:23, Geert Uytterhoeven wrote: [snip] >> >> Fbcon does small writes to the shadow frame buffer, while fbtest >> writes to the mmap()ed /dev/fbX, causing a full page to be updated. >> > > I see. Thanks for the information. > I found the bug. Partial updates where indeed broken and only a full screen update was working. I didn't notice because where using your fbtests that mmap and do a full update. Thanks a lot for reporting this, the issue should be fixed in v3. Best regards, -- Javier Martinez Canillas Linux Engineering Red Hat