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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 6877BC04AAF for ; Thu, 16 May 2019 18:26:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4100E2087B for ; Thu, 16 May 2019 18:26:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZEpH+0ep" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727938AbfEPS0b (ORCPT ); Thu, 16 May 2019 14:26:31 -0400 Received: from mail-oi1-f195.google.com ([209.85.167.195]:39081 "EHLO mail-oi1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726357AbfEPS0b (ORCPT ); Thu, 16 May 2019 14:26:31 -0400 Received: by mail-oi1-f195.google.com with SMTP id v2so3275865oie.6; Thu, 16 May 2019 11:26:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=0QOmJrz3t+ssW/c0JNL75BVKUs3lWPdi+hPwpLLqj0Y=; b=ZEpH+0epLMFSR18nfhuqzs+K3+pk1JK7FHLTbOUTQfU/wEjw2yw/OkaWvsmN+8euDm cpxhsPk10kP23ZWlHRbBYyqjuoOHCWxMJYUnlvztrx4pNOws3OHeTj/IEaoU3s72GxOH ZcjXTqYUWFIOQDh+ZtpROhV0KGHV+fHYmUSE8TdQHu2i3iO3sFJONBSJSOM6xSXnUWKp hZn1rCsMsGLLa2ctsLGmADOdhQ5tfUOZK5wdYIsBayPnaCHAzt7K37ipbtogV3WTG26v ctxFxluxhtaiN6LA+jEIcXU5x0lQQF1ok0OOcPaZ0wDldQf1BqXMRGl42fbGcfGQ66Cn YqOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=0QOmJrz3t+ssW/c0JNL75BVKUs3lWPdi+hPwpLLqj0Y=; b=HxUvmtEREG/UjaYkpBTphgD6pP94xvwZ/LQU4eXyWbfLwbmrvO/0iilgGTRoHPI7Wm GaArDklQg55RGf6mBVcGlIgW1tMvKe2GIVBXsFCvWSZTz7q387aYfUQv7pD2I+81Qbxe T3y9OwqDfYn6rux4hTqxpKnLTWqVDGlF2gznieGZtpLLj1jAbVu0yUMgjDy1jUfB6m+H Oqdkb9C82iC4NIHyqxDR1G3jOK7Se6ikoXSGQaKHHjESIvG+O6EZIU77gMTDraj5jbo3 J0Wv0nNhDvlZiPiQ4TN85iP+mHk6U5CJpi19SM25Hdr+44Vt07GSZignfyarbr9udb37 jhdw== X-Gm-Message-State: APjAAAW0u2kvW3AZixxFTVrH6Hf+8CHpb1P0ootZqO45PP7W4qJsAUiq XHih/8lu/QRlt0alQP8AjN4axMUGS4RotWFE7sU= X-Google-Smtp-Source: APXvYqxtsCkbedLuyoFQPMGbJweEX/2iUWRBGnKBlpw9mcsocW3dkMpvyrQjOnc7DiWR1WpZ0EsRJpTfOtCCQLhwvOE= X-Received: by 2002:aca:240d:: with SMTP id n13mr11043400oic.145.1558031190251; Thu, 16 May 2019 11:26:30 -0700 (PDT) MIME-Version: 1.0 References: <20190514155911.6C0AC68B05@newverein.lst.de> <20190514160241.9EAC768C7B@newverein.lst.de> <20190515093141.41016b11@blackhole.lan> <20190516154820.GA10431@lst.de> <20190516164859.GB10431@lst.de> In-Reply-To: <20190516164859.GB10431@lst.de> From: Vasily Khoruzhick Date: Thu, 16 May 2019 11:26:45 -0700 Message-ID: Subject: Re: [PATCH 4/4] arm64: DTS: allwinner: a64: enable ANX6345 bridge on Teres-I To: Torsten Duwe Cc: David Airlie , Daniel Vetter , Rob Herring , Mark Rutland , Thierry Reding , Maxime Ripard , Chen-Yu Tsai , Andrzej Hajda , Laurent Pinchart , Icenowy Zheng , Sean Paul , Harald Geyer , dri-devel , devicetree , arm-linux , linux-kernel Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 16, 2019 at 9:49 AM Torsten Duwe wrote: > > On Thu, May 16, 2019 at 09:06:41AM -0700, Vasily Khoruzhick wrote: > > > > Driver can talk to the panel over AUX channel only after t1+t3, t1 is > > up to 10ms, t3 is up to 200ms. > > This is after power-on. The boot loader needs to deal with this. Actually panel driver has to deal with it and not bootloader. > > It works with older version of driver > > that keeps panel always on because it takes a while between driver > > probe and pipeline start. > > No lid switch, no USB, no WiFi, no MMC. If you disable DCDC1 you'll > run out of wakeup-sources ;-) IOW: I see no practical way any OS > driver can switch this panel voltage off and survive... Ouch, looks like someone made a huge mistake in HW design? > > All in all - you don't need panel timings since there's EDID but you > > still need panel delays. Anyway, it's up to you and maintainers. > > Let's give it a try. > > Torsten > 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=-1.0 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 70511C04AAF for ; Thu, 16 May 2019 18:26:37 +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 4AB8B20818 for ; Thu, 16 May 2019 18:26:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Ig79GITy"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZEpH+0ep" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4AB8B20818 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.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:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DVl/MKJb5HH3RWU9Qo8WpgneU4Iwf0A9wHM4zmnDfDU=; 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Thu, 16 May 2019 11:26:30 -0700 (PDT) MIME-Version: 1.0 References: <20190514155911.6C0AC68B05@newverein.lst.de> <20190514160241.9EAC768C7B@newverein.lst.de> <20190515093141.41016b11@blackhole.lan> <20190516154820.GA10431@lst.de> <20190516164859.GB10431@lst.de> In-Reply-To: <20190516164859.GB10431@lst.de> From: Vasily Khoruzhick Date: Thu, 16 May 2019 11:26:45 -0700 Message-ID: Subject: Re: [PATCH 4/4] arm64: DTS: allwinner: a64: enable ANX6345 bridge on Teres-I To: Torsten Duwe X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190516_112631_301437_EE77AF5B X-CRM114-Status: GOOD ( 16.27 ) 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: Mark Rutland , devicetree , Andrzej Hajda , David Airlie , linux-kernel , dri-devel , Maxime Ripard , Chen-Yu Tsai , Rob Herring , Thierry Reding , Laurent Pinchart , Daniel Vetter , Harald Geyer , Sean Paul , arm-linux , Icenowy Zheng 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 Thu, May 16, 2019 at 9:49 AM Torsten Duwe wrote: > > On Thu, May 16, 2019 at 09:06:41AM -0700, Vasily Khoruzhick wrote: > > > > Driver can talk to the panel over AUX channel only after t1+t3, t1 is > > up to 10ms, t3 is up to 200ms. > > This is after power-on. The boot loader needs to deal with this. Actually panel driver has to deal with it and not bootloader. > > It works with older version of driver > > that keeps panel always on because it takes a while between driver > > probe and pipeline start. > > No lid switch, no USB, no WiFi, no MMC. If you disable DCDC1 you'll > run out of wakeup-sources ;-) IOW: I see no practical way any OS > driver can switch this panel voltage off and survive... Ouch, looks like someone made a huge mistake in HW design? > > All in all - you don't need panel timings since there's EDID but you > > still need panel delays. Anyway, it's up to you and maintainers. > > Let's give it a try. > > Torsten > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel