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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_PASS,USER_AGENT_NEOMUTT autolearn=unavailable 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 8C309C43387 for ; Wed, 16 Jan 2019 19:18:39 +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 31E2E20866 for ; Wed, 16 Jan 2019 19:18:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="iU+X+Afl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 31E2E20866 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-Transfer-Encoding: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-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bYt0urZ3xvS04xRqPkS21nM0hEifsSy7O4mZV32pzdo=; b=iU+X+AflA6iSPV m7k3REQx/F34i42n9QnAdrDbKmQYbDsFvPQZYA/syBouhweM0K0/RE4Hnsl6wto9VQEtTn2VYFW/1 rW56h+0rsCnm3n3d/Fe/RN3k5CxfAN2qjgGWy9fx0rAe1VPjMcS8G9TEbNCoyAvRj0blP5RRudnli 5O8VdkJIK6OM5LYPFYttXge1efPjeB2wtObxAL7yX3R7ivgFa7TgBCqyPBPQZf5Gov7qkZ85pSswL jiWoU/3N9yskE2XshHAUC2sxqfarRtYhDMznP0oMGa/FX09hrkWqfz90L5BY2A6OAidFz4g1F+kPN CtUU1WW5pVW/pC2iZdaA==; 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 1gjqhu-0005Q5-LP; Wed, 16 Jan 2019 19:18:34 +0000 Received: from mail.bootlin.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gjqhY-00052Q-4B for linux-arm-kernel@lists.infradead.org; Wed, 16 Jan 2019 19:18:18 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id CD18F207A3; Wed, 16 Jan 2019 20:18:10 +0100 (CET) Received: from localhost (unknown [212.81.177.10]) by mail.bootlin.com (Postfix) with ESMTPSA id 760E2207A3; Wed, 16 Jan 2019 20:18:00 +0100 (CET) Date: Wed, 16 Jan 2019 20:17:56 +0100 From: Maxime Ripard To: Jagan Teki Subject: Re: [PATCH v5 07/17] drm/sun4i: sun6i_mipi_dsi: Refactor vertical video start delay Message-ID: <20190116191756.ajzzaga43srk77dk@flea> References: <20181210161729.29720-1-jagan@amarulasolutions.com> <20181210161729.29720-8-jagan@amarulasolutions.com> <20181211164900.wfmkmbrbj3nmlb3h@flea> <20190107141158.zaimizk4rlqa6xli@flea> <20190108085829.clianbtjovu3oieq@flea> <20190112164319.whr7gwvl4oux5svz@flea> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20180716 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190116_111812_846700_6A123284 X-CRM114-Status: GOOD ( 15.13 ) 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: Stephen Boyd , Michael Turquette , linux-sunxi , linux-kernel , dri-devel , Chen-Yu Tsai , Michael Trimarchi , linux-amarula@amarulasolutions.com, linux-clk , linux-arm-kernel Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sun, Jan 13, 2019 at 01:07:41AM +0530, Jagan Teki wrote: > > > > > > Again, I cannot help you without the datasheet for the panels you're > > > > > > trying to submit. > > > > > > > > > > The panel bound with Sitronix ST7701 IC > > > > > http://www.startek-lcd.com/res/starteklcd/pdres/201705/20170512144242904.pdf > > > > > > > > It's the controller, not the panel > > > > > > As I said before, the datasheet of that panel doesn't have any > > > information except electrical characteristics and used IC which is > > > ST7701. > > > > > > I have one more panel, which is from Bananapi, S070WV20-CT16 ICN621 > > > please find the attachment for the same. > > > > > > Here is some more details of the same. > > > > > > https://github.com/yesnoandor/x300/blob/master/kernel/arch/arm/boot/dts/erobbing/x300/x300.dtsi#L81 > > > https://github.com/wxzed/Raspberry_5MIPI_Display/blob/master/I2C_Slave/USER/main.c#L15 > > > > > > https://github.com/eliot-shao/qcom/blob/master/icn6211_cxn0102/kernel/drivers/video/msm/mdss/mdss_i2c_interface.c#L152 > > > matches timings for > > > https://github.com/eliot-shao/qcom/blob/master/icn6211_cxn0102/kernel/arch/arm/boot/dts/qcom/dsi-mipi-2-rgb_1280p_video.dtsi#L20 > > > > > > https://github.com/zestroly/micromat/blob/master/test/raspberry/ICN6211.cpp#L169 > > > > Where did you get the timings from then? > > You mean drm_mode timings, the same panel with RGB available in > panel-simple[1], and dsi driver in Mailing list[2] and actual DSI > sequence commands from BSP[3] > > [1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/panel/panel-simple.c?id=7ad8b41cd8f5c2842646d01cdd576663caee04a7 > [2] https://patchwork.kernel.org/patch/10680331/ > [3] https://github.com/BPI-SINOVOIP/BPI-M64-bsp/blob/master/linux-sunxi/drivers/video/sunxi/disp2/disp/lcd/S070WV20_MIPI_RGB.c So you had no reliable source for the timings then? How do you know if all your patches that are timing related are right then? Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel