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 5465FE7717D for ; Mon, 9 Dec 2024 11:55:32 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ahtKyo3umu0l8xANNPbc/omC47RmvAyiOEB98A3zRFk=; b=TZYj3tftnwprIUyKKw0z3jZ7BV fP8jK8PRFhv96wefeELhjburoo3V8CF5sq2DanQAeWsP4l2SbsbXAbVp1TltEMNhijv8AfNzZgJFW v9/+FVRIFywmX1rqV3pzBMKSeEeanY5twR2+6WFbM+eI8bdna5WY5ajwD5jhGuArDNoQCLL23PdPJ kYidW3HBZQoacQe20oAUpORT/iJLsgKC2Y7h4y9xYtLXrFIVyHfgacP3HBB6FOh1VP6LphWqfZNk/ 7gNmPLZ5ty3EeXx8xk39Bcn8isjX9/Y+fjmpCLLo4HdAUV9meLYIF81uJfQci+rIFekGgDckZ38JD Bco9XNKA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tKcMB-00000007a5G-0pxs; Mon, 09 Dec 2024 11:55:19 +0000 Received: from mail-m16.yeah.net ([1.95.21.14]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tKcJf-00000007ZEn-0Ddp for linux-arm-kernel@lists.infradead.org; Mon, 09 Dec 2024 11:52:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yeah.net; s=s110527; h=Date:From:Subject:Message-ID:MIME-Version: Content-Type; bh=ahtKyo3umu0l8xANNPbc/omC47RmvAyiOEB98A3zRFk=; b=Wl9Uwb3hHHYw1gXSGXz5c9Av0256OS/lw+UeGGnBU2D3FOnTxEqpD+4SYAcazJ 8I5juTXjI7/sdyKwQPMJmTlJu+06Eu/oX0g6dYXP8lW5UmTc8XpUqOY4QTi9n/nA wvO0/C8DCt81JKSI5t46SxjkYeubpjnoyxz2TN8YyiTtg= Received: from dragon (unknown []) by gzsmtp3 (Coremail) with SMTP id M88vCgC3ZJi+2VZn8elyBA--.46363S3; Mon, 09 Dec 2024 19:51:29 +0800 (CST) Date: Mon, 9 Dec 2024 19:51:26 +0800 From: Shawn Guo To: Liu Ying Cc: imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, catalin.marinas@arm.com, will@kernel.org, abelvesa@kernel.org, peng.fan@nxp.com, mturquette@baylibre.com, sboyd@kernel.org, andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, quic_bjorande@quicinc.com, geert+renesas@glider.be, dmitry.baryshkov@linaro.org, arnd@arndb.de, nfraprado@collabora.com, marex@denx.de Subject: Re: [PATCH v6 1/7] arm64: dts: imx8mp-skov-revb-mi1010ait-1cp1: Set "media_disp2_pix" clock rate to 70MHz Message-ID: References: <20241112100547.2908497-1-victor.liu@nxp.com> <20241112100547.2908497-2-victor.liu@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241112100547.2908497-2-victor.liu@nxp.com> X-CM-TRANSID: M88vCgC3ZJi+2VZn8elyBA--.46363S3 X-Coremail-Antispam: 1Uf129KBjvdXoW7Xw45tFyrZr13XF17Ar4rAFb_yoWfArbEyF 17ZF4v9rs5XFyYkwsFkrZ3Aw48K3srZryUCayUJw45ta47Xan8ZF1S9ry5Wa1UXa4ayw1q gFn5Wa98K3sIkjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU1xpnDUUUUU== X-Originating-IP: [114.218.218.187] X-CM-SenderInfo: pvkd40hjxrjqh1hdxhhqhw/1tbiCRWwZWdWsiw1LwACs+ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241209_035243_406530_3F6B0670 X-CRM114-Status: GOOD ( 11.04 ) 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 On Tue, Nov 12, 2024 at 06:05:41PM +0800, Liu Ying wrote: > The LVDS panel "multi-inno,mi1010ait-1cp" used on this platform has > a typical pixel clock rate of 70MHz. Set "media_disp2_pix" clock rate > to that rate, instead of the original 68.9MHz. The LVDS serial clock > is controlled by "media_ldb" clock. It should run at 490MHz(7-fold the > pixel clock rate due to single LVDS link). Set "video_pll1" clock rate > and "media_ldb" to 490MHz to achieve that. > > This should be able to suppress this LDB driver warning: > [ 17.206644] fsl-ldb 32ec0000.blk-ctrl:bridge@5c: Configured LDB clock (70000000 Hz) does not match requested LVDS clock: 490000000 Hz > > This also makes the display mode used by the panel pass mode validation > against pixel clock rate and "media_ldb" clock rate in a certain display > driver. > > Signed-off-by: Liu Ying Applied, thanks!