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=-1.3 required=3.0 tests=DATE_IN_PAST_12_24, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 A77D2C35640 for ; Fri, 21 Feb 2020 06:50:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6BA6620722 for ; Fri, 21 Feb 2020 06:50:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="VzXfMrb9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726224AbgBUGuP (ORCPT ); Fri, 21 Feb 2020 01:50:15 -0500 Received: from mail-wm1-f66.google.com ([209.85.128.66]:33342 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726201AbgBUGuO (ORCPT ); Fri, 21 Feb 2020 01:50:14 -0500 Received: by mail-wm1-f66.google.com with SMTP id m10so4443755wmc.0 for ; Thu, 20 Feb 2020 22:50:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=q61/N6jKzSDGt/dt2Ij4V86BCpsgubUQTNr9KPnbsfA=; b=VzXfMrb9VSxxxrTJ5DDpS1xdw0dsZ3h+H5ZwFs9uigBL9YpFt0PFhdr3SG3lZ+hF7Q Gm/KInKtrOYR51jFwrjfeMxvPtSXPOVGtYZGXsxTAJoT3fhttjsQdAJNkWjBFqJuqzhk 7odQ6VLtaVDtHK5Zqt45oi8BKD0XLZoXyON7wer0RfUMNVXnJjx/DHDGjMach0Ar6nBP qeapLe03hmprJaKD4rfHRQIQRlx1a1es69I4nvOSgqGGNObe6LZ83WBcbd2EA5q9j/0h rs/XY11RvXFxQwhdws8EjTVo0BDLdjtC8kPB3iG28X8ILnPe4HeYCf3cm+bwcJNm6IAh 9fpg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=q61/N6jKzSDGt/dt2Ij4V86BCpsgubUQTNr9KPnbsfA=; b=toPSgRhwDGeKRdRox5NDsvXSsiKmUJm9ToqWYdkrzpCOwVnBBsi89o369OIkfpYe52 ZoPvhr/xcLDKIlM7U4prN7bANvvxuaDuuCHga0Ec76xy7fHJmSoOkDVvuN4nUWAt+531 6jOw/+Vu51svT+Fw4b/gVBIvFqB9wI18eKvfLkhZ6JvPA4RUcemLLT+h1lKeIlXCWbEf 882EqoZL3JtQsU5UnW2btMjec99waME6LU0i2obNxigf//JaCAuptwBOzEeY9CoZwDHj uMaaIM1fmSI4YTAFMibxS8x5p3oS/EKGlCP38GMIoR68JHiWJRUaxK0MKQE5fZrjMS7u +MXA== X-Gm-Message-State: APjAAAXX1OjwVLV97Ttcwq2LVA2BqTmDW+/9/xbECS8tEBjBwE5rYXvV LF5HgjZSO5Rr/hh3KhPFn0s= X-Google-Smtp-Source: APXvYqzEZJwZsv9NAveAC2FjcWcHpl771MrGsbDrYjQQgJbqUJeWLRf2jv4lld17Hkk9bm6M9EG3Ag== X-Received: by 2002:a7b:c152:: with SMTP id z18mr1742573wmi.70.1582267812932; Thu, 20 Feb 2020 22:50:12 -0800 (PST) Received: from localhost ([193.47.161.132]) by smtp.gmail.com with ESMTPSA id h205sm2551959wmf.25.2020.02.20.22.50.11 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 20 Feb 2020 22:50:12 -0800 (PST) Date: Thu, 20 Feb 2020 17:04:41 +0100 From: Oliver Graute To: aisheng.dong@nxp.com Cc: peng.fan@nxp.com, festevam@gmail.com, devicetree@vger.kernel.org, linux-imx@nxp.com, Anson.Huang@nxp.com, linux-arm-kernel@lists.infradead.org Subject: RFC: imx8: imx8qm with LCD Panel on lpspi Message-ID: <20200220160441.GC31464@optiplex> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hello Aisheng, I try to get a LCD Panel working with the imx8qm. The Panel is connected to lpspi. But I'am not sure if I handle the imx8qm clocking the right way. Should I use the imx7ul compatible or the imx8qxp compatible? Which clock defines should I use for the SPI1 Clk? Best Regards, Oliver lpspi1: lpspi@5a010000 { compatible = "fsl,imx7ulp-spi"; /* compatible = "fsl,imx8qxp-spi"; */ reg = <0x0 0x5a010000 0x0 0x10000>; interrupts = ; interrupt-parent = <&gic>; clocks = <&clk IMX_ADMA_SPI1_CLK>, <&clk IMX_IMG_IPG_CLK>; clock-names = "per", "ipg"; assigned-clocks = <&clk IMX_ADMA_SPI1_CLK>; assigned-clock-rates = <20000000>; status = "disabled"; }; &lpspi1 { #address-cells = <1>; #size-cells = <0>; fsl,spi-num-chipselects = <1>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_lpspi1 &pinctrl_lpspi1_cs>; cs-gpios = <&lsio_gpio3 24 GPIO_ACTIVE_LOW>; status = "okay"; panel@0 { compatible = "sitronix,st7789v"; reg = <0>; /* reset-gpios = <&lsio_gpio3 11 GPIO_ACTIVE_LOW>; */ backlight = <&lvds_backlight1>; spi-max-frequency = <30000000>; spi-cpol; spi-cpha; port { panel_input: endpoint { remote-endpoint = <&tcon0_out_panel>; }; }; }; };