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 X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AB5D6C43381 for ; Wed, 13 Mar 2019 15:20:42 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 7AB1120643 for ; Wed, 13 Mar 2019 15:20:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="c/CY9euG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7AB1120643 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject: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=pvH1oRpfPEG21NqZLlfkefyQUHMokSkpPzQ1cgrN1kM=; b=c/CY9euGigUfrbm0nNoV8MXFA EH1El5KwnutwbVJoWY6/VnCpcKj0uPSKrRXqRuGt/N/zzV3sTutqDPAKh0MCzvgYuhTteOkXNWujS KnbALWQ7p9qIElOSvCOzWGN+3PR0IFyjL/v+cydlDOSvoZHuypGlg27x6PbumcsLoU7K8ZJkOfZZS GdYrCyptyibGd+3HfKgbUHtFi9gbURI48LmHhjzw6dE0U2Q5KDLm6IXLOohCajlo2d1WzWJcT4RwM EDcKkdUcCULA3WqzIZYCR///rQQfZTh9FpxR8fpXof1/O7HugHrNOw1iTNt7WXviJ5/ByFhy11zqj YDL77Vvgw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h45gE-0004qO-Fm; Wed, 13 Mar 2019 15:20:30 +0000 Received: from relay10.mail.gandi.net ([217.70.178.230]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h45g9-0004q4-Ha for linux-arm-kernel@lists.infradead.org; Wed, 13 Mar 2019 15:20:27 +0000 Received: from localhost (aaubervilliers-681-1-80-102.w90-88.abo.wanadoo.fr [90.88.22.102]) (Authenticated sender: maxime.ripard@bootlin.com) by relay10.mail.gandi.net (Postfix) with ESMTPSA id 09EE0240016; Wed, 13 Mar 2019 15:20:17 +0000 (UTC) Date: Wed, 13 Mar 2019 16:20:17 +0100 From: Maxime Ripard To: Sergey Suloev Subject: Re: sun6i MIPI DSI driver EoTp Message-ID: <20190313152017.zacuzdzdpfbo56a6@flea> References: <20190312155253.kdsqgby32jgagdta@flea> MIME-Version: 1.0 In-Reply-To: User-Agent: NeoMutt/20180716 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190313_082025_735164_342F515B X-CRM114-Status: GOOD ( 19.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============6142276602087424745==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============6142276602087424745== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="dk6ec66co5xqecpv" Content-Disposition: inline --dk6ec66co5xqecpv Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Mar 12, 2019 at 10:17:49PM +0300, Sergey Suloev wrote: > On 3/12/19 6:52 PM, Maxime Ripard wrote: > > Hi, > >=20 > > On Mon, Mar 11, 2019 at 09:43:36PM +0300, Sergey Suloev wrote: > > > according to MIPI DSI spec chapter 8.8.2=A0 the EoTp packet can be en= abled or > > > disabled on the protocol level. > > > It seems like that it might be required for the panel I am working on= (Himax > > > HX8379A-based panel). > > > Here is some crappy driver I found on github showing that it might be= an > > > issue=A0 [1] > > >=20 > > > May I ask you if this feature supported by sun6i MIPI DSI driver and > > > where ? > > > As there is no datasheet available, could you please help to support = this > > > feature (if not yet) ? > > I haven't seen any panel that used it so far, so I have no idea. > >=20 > > I guess this would be controlled through > > SUN6I_DSI_BASIC_CTL0_HS_EOTP_EN in the driver. >=20 > thanks for pointing this >=20 > > > The second point is that the panel requires NON-BURST-WITH-SYNC-EVENT= S mode. > > > Could it be a problem with the current driver? > > That should be supported in -next >=20 > does your "should" mean "already supported" or "will be supported" ? There's code to deal with burst mode but I just realised you wanted non-burst. This was supported from day one, but we've landed some quite important fixes that you might want to look at. > I did a quick compare 4.20.15 with next and there is no difference in MIPI > DSI driver code (apart from moving phy away). Which tree have you compared 4.20 with? Maxime --=20 Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com --dk6ec66co5xqecpv Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXIkfsQAKCRDj7w1vZxhR xXpnAQDVKQlm/I6obVjU9idyno/KLssuO0l5tyA/wjDJs7P/wwD/Sh8huOLJc4Pb +lWNJgMFh6bwi/aK1EEAsPwMAXLhcAk= =wx84 -----END PGP SIGNATURE----- --dk6ec66co5xqecpv-- --===============6142276602087424745== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============6142276602087424745==--