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 BC9A6CE7AB8 for ; Fri, 6 Sep 2024 07:52:55 +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=sPZhiDYs2m15S0V1W1RRuykad7Wo0jjSwv9ZoxE83Xw=; b=LLBokQ/48zcQII6t3ymnbzATdn VN4Je3ylVGfz27viLPOPipngyvZl7Hv2y+b1nIH4xGspfbOXtD2vJibh34Ct1juWtjycfMxjqRa6s 5UuEgqDdU+UYghl1QLSTYKNA84gTeSu5M/8U8B6ers2XMVBbD+E/isGz5xq7iI3ql+HHKJlRq4blT GSICNqg+9ad8V+qZlhx/gzd1YmCCk0vrO9LLELWXDt2pfMLCGz/qgRlFzIvfCm3tXz/+kbEqci9Zp VsRD8JJzdb6tT18r8XIRiR2uYkSoR1nJtdkN0SPcZZjPaG0UEiBH9lHHl3jujc30czBe4f2iNGGdB UxByYLbA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1smTlv-0000000BBgY-12az; Fri, 06 Sep 2024 07:52:47 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1smTkv-0000000BBYl-32Qg for linux-arm-kernel@lists.infradead.org; Fri, 06 Sep 2024 07:51:47 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id F352A5C597F; Fri, 6 Sep 2024 07:51:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4C84C4CEC4; Fri, 6 Sep 2024 07:51:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725609104; bh=4Q6QBPQx0Q3Hsvug/TgTFRvcIUp3b3WiTX1Mnyr8qBE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ji6a+zWiL9JTLas91YgLsCxxIqj2cN/GecYl72V+r40HHNcJsHL/xeioVwrSOt1LY A6mNFmNqSxCdXE1oiGpqPjYunpCg89upZAH77wad3kbLV3JAJwwgtah53asWHRHg6O JJL78UGtHDMTTGjI2RMOkTjL4JWDC3sKDNGSr7/hXEBVXlYL2gLZOdLhu5a2Q1Xl5k f7aY3an9ijVUpBhNNhkSrCa1sBIw6uljUM23wxX0hC+3E8wicnDMph1UpI6AMpAaRu tvcWeFjGYaArmuR/K9Gr1/4WTSnsdD2GPva9Clkb+FOiOeMdKYBRPsL8mtFox9HuyH NACu5UrNSJZkA== Date: Fri, 6 Sep 2024 09:51:41 +0200 From: Maxime Ripard To: Adam Ford Cc: Dominique Martinet , Liu Ying , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Lucas Stach , Frieder Schrempf , dri-devel@lists.freedesktop.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drm/bridge: imx8mp-hdmi-tx: allow 0.5% margin with selected clock Message-ID: <20240906-strange-spiffy-nautilus-330add@houat> References: <20240904083103.1257480-1-dominique.martinet@atmark-techno.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha384; protocol="application/pgp-signature"; boundary="ejxvdrh7pzfeccnj" Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240906_005145_830447_1B2DF010 X-CRM114-Status: GOOD ( 16.09 ) 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 --ejxvdrh7pzfeccnj Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Sep 05, 2024 at 08:23:51PM GMT, Adam Ford wrote: > On Wed, Sep 4, 2024 at 3:31=E2=80=AFAM Dominique Martinet > wrote: > > > > This allows the hdmi driver to pick e.g. 64.8MHz instead of 65Mhz when = we > > cannot output the exact frequency, enabling the imx8mp HDMI output to > > support more modes > > > I went from 19 options on Modetest with my AOC 4K monitor to 31. Of > those 31, three did not appear to sync, but not all the frequencies in > the LUT sync for me either, so I have no objection to moving forward > with this, but I wonder if we should have a note in there about why we > have a 5% tolerance. Yeah, I agree, it's something you want a comment for. Maxime --ejxvdrh7pzfeccnj Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iJUEABMJAB0WIQTkHFbLp4ejekA/qfgnX84Zoj2+dgUCZtq0iAAKCRAnX84Zoj2+ dkeCAXwPeLKzxqgBG+rta8SfG1sXvEd6pNwz9VSiFA47y7aJ9OD7j+7lQJW5Hp9A f8lglUYBgKqiDZpM9XRPFEvccSnysACDM8/y9q+NAxU4Y9HqgSK9gBnnPQl+OJqX ls8XD7B2aw== =SnQ0 -----END PGP SIGNATURE----- --ejxvdrh7pzfeccnj--