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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C1248E77180 for ; Mon, 9 Dec 2024 23:16:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=gyJVyur4IyAHn8poAWBypTH6jYDB+Nwxko92c/qdMK4=; b=WnHBYFoz/LQ32WghoeiNmg6MAU RjNXO+NU9j2DSS/hERucvugmFjt43+xUp/7dT32JsDBfoO8c7yTmOR3AeW0+6Q5AkVrCUu82lXK3U 4UIjI0W02D18HHTue0UIcRYT2IZlnuM9596sIZq0qrxSWxF3yBF+c2DwJssid1yq4Geq257JW9GGj Dq8sanVfw1aGb/BOaAVVu8qojGgc/PsBBuXMYshe/TP8nUHOBND6Wj2Hg2L0EmZpg4D92cGW4bBu9 vBy810dfllZyAzT2NLeuWZO6Vx1kQ9UmGn4C0ZM3I1HsP6mRGVkCI+8MVEei3U9HDNn2yqN+9Vr4E TGI+WmxA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tKmzN-00000009XRf-0HyO; Mon, 09 Dec 2024 23:16:29 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tKmvm-00000009Wiv-2Xu7; Mon, 09 Dec 2024 23:12:47 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=gyJVyur4IyAHn8poAWBypTH6jYDB+Nwxko92c/qdMK4=; b=f8M1mNgQdC5wIM/8vQdHwqvNYz UBUAZDSqr1Cx/7P6DJj40JCUWj7hqJcV9If4OpxdSUG+xbTvK67o9NxJk7uPNSpHuZoGU4SDBQNE9 w9Q5s7iDS7JKUA8T/LBsnfd5TDd9lkJ59Z66FeB36Yb8clf+39Pu6P2Jb/3dS+wcQj9rTvDDhAN91 pLSAIU8oxDl1HA7oAzSF/op5UCW/DGoOXk3HNtydhi3PK1q4DYpmedSiwqW7rE20MGeguXcVr2K08 6DO8lty+Naoovses0nzvGjkd/4oW5eHLIUukRjQ7a27FqoJ3OZajanfclUYYBt1iLOlbOc+N919Uv 7t7yk0Og==; Received: from i53875bc4.versanet.de ([83.135.91.196] helo=diego.localnet) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1tKmvT-0005Hj-UT; Tue, 10 Dec 2024 00:12:27 +0100 From: Heiko =?ISO-8859-1?Q?St=FCbner?= To: Daniel Semkowicz , Diederik de Haas , andy.yan@rock-chips.com Cc: Laurent.pinchart@ideasonboard.com, andrzej.hajda@intel.com, conor+dt@kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, jernej.skrabec@gmail.com, jonas@kwiboo.se, krzk+dt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, neil.armstrong@linaro.org, quentin.schulz@cherry.de, rfoss@kernel.org, robh@kernel.org, tzimmermann@suse.de Subject: Re: [PATCH v3 0/3] drm/rockchip: Add driver for the new DSI2 controller Date: Tue, 10 Dec 2024 00:12:26 +0100 Message-ID: <2203458.KiezcSG77Q@diego> In-Reply-To: References: <20241203165450.1501219-1-heiko@sntech.de> <20241209150619.33998-1-dse@thaumatec.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241209_151246_636490_30CCF50D X-CRM114-Status: GOOD ( 29.22 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Am Montag, 9. Dezember 2024, 17:11:03 CET schrieb Diederik de Haas: > Hi, > > On Mon Dec 9, 2024 at 4:06 PM CET, Daniel Semkowicz wrote: > > On 03.12.24 21:54, Heiko Stuebner wrote: > > > This series adds a bridge and glue driver for the DSI2 controller found > > > in the rk3588 soc from Rockchip, that is based on a Synopsis IP block. > > > > > > > I did more tests with different LVDS displays. I tested following > > configurations with DSI/LVDS bridge: > > - 1024x600@60.01 > > - 1024x768@60.02 > > - 1280x800@60.07 > > - 1366x768@60.06 > > > > All of them worked without issues, except 1366x768. > > With this resolution, video is blurry, and offset incorrectly > > to the left. There are also repeating errors on the console: > > > > rockchip-drm display-subsystem: [drm] *ERROR* POST_BUF_EMPTY irq err at vp3 > > > > In correct operation with other resolutions, there is no error. > > I am not sure if this is a problem in your series or rather in VOP2 > > driver. This really sounds like something is wrong on the vop side. The interrupt is part of the vop, the divisable by 4 things likely too. Heiko > > On my PineTab2 I got similar messages about 2 weeks ago: > rockchip-drm display-subsystem: [drm] *ERROR* POST_BUF_EMPTY irq err at vp1 > > Preceding those, I got several panfrost related errors: > > panfrost fde60000.gpu: get clock failed -517 > panfrost fde60000.gpu: clk init failed -517 > platform fde60000.gpu: deferred probe pending: (reason unknown) > platform cpufreq-dt: deferred probe pending: (reason unknown) > vdd_gpu_npu: disabling > > But can also be that the PineTab2 (likely) needs regulator-always-on > and regulator-boot-on in its vdd_gpu_npu node. > > > I tried to track down the problem, and it seems to be a generic issue > > when horizontal line width is not divisible by 4. > > Lowering line width to 1364px fixes the issue, but of course I have two > > vertical lines of black pixels on the right. > > I also made some tests with 720x1280 DSI display. Lowering horizontal > > line to 718px shows the same problem. With 720px and 716px it works > > correctly. > > I haven't look further into it, but the PT2 has a 1280x800 resolution. > > HTH, > Diederik >