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=-10.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 30FD1C4727C for ; Tue, 29 Sep 2020 19:02:33 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 A22AD2076D for ; Tue, 29 Sep 2020 19:02:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Scc61MAh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A22AD2076D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+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=merlin.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=/Mh4425z7MwFdIbWdtrRvCAxavaTBRiDujY4solat3w=; b=Scc61MAh2GmnokUkAtBUYMJjN RWH0HuJ1D5YYbl/GiADfzJ60uB6qGyHpjrqkYcKUxrnixEbKj26O5T0m3h44mysdiqQovWCqlNkJJ otDy7r07vSdU6T9o2Uc6vSWVPppSuvspcY9WACzRjfO3kwYJau/FRmGRojRBO7OToUJc6HiEfRFOC 98SaOHHS5E+EGBM4g6+xWXV/15uJAisEvjwf/x+/MOFKi6f+98v27xPuj1BiblWx0bo6NFje9wJ7y NR0S3By1psiNsNd29x3FSwhgTLLHZq1OsrTtdXaq3Om1jwGNAuEC9bN0g3Nhmd4WegJ0lPCnPQ+5V 68ecywXxQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNKs1-0001MC-Bq; Tue, 29 Sep 2020 19:01:01 +0000 Received: from mail-oo1-f67.google.com ([209.85.161.67]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNKry-0001Kt-7k; Tue, 29 Sep 2020 19:00:58 +0000 Received: by mail-oo1-f67.google.com with SMTP id h8so1550966ooc.12; Tue, 29 Sep 2020 12:00:57 -0700 (PDT) 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:references :mime-version:content-disposition:in-reply-to; bh=6sxjm/h53ZlWGhKVi/BI1snEk9zxjIfEAdpeaGtQZss=; b=lWqkGrA9v4STFa3oRqfkKr9OTmJq3l+VJSqX65lLR8YFdVCoYTRM9kuQaH88VNDKZt A8U0Wmng/Afnky7GaEGVeLdWw2Rqprei081atfmNwOkuHl0EDDkNcFo6VSmWW806ogYb TjL9bAynDvc3L6iaVF0jIuP8bl04IjJ8J9aFNHT6aVjvnpCr/UX41Lh3Gy8RoXmMxtqT sdbe1Z/ga1vHWE4LgZt24LxqiMuNuqekc6fayznU1IQ4TqSEwV7OQjnL+hXOmwbgIrka J4QE+FFR+4l1WjvEB7KRFvtHp8avMDGMNl9UW/GZ3kSM7lIo5IL0gX/uZlT2/1QsHNdv WTXw== X-Gm-Message-State: AOAM532ZeowJz4/IC+/M9BJl0cYfTpQdT/U8CVZHSBZWr8BC0f3VRZSU /hklzSNthjvskLjjG0n4tg== X-Google-Smtp-Source: ABdhPJygoarE7ZwUXPOTJGxm/lFQ5wLlJdb3eJvCxODi77a6glDpIAOe4kc8T1X/FTVh57MwugQfSA== X-Received: by 2002:a4a:d38c:: with SMTP id i12mr5643217oos.81.1601406057182; Tue, 29 Sep 2020 12:00:57 -0700 (PDT) Received: from xps15 (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.gmail.com with ESMTPSA id c12sm1194876otm.61.2020.09.29.12.00.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 12:00:56 -0700 (PDT) Received: (nullmailer pid 968417 invoked by uid 1000); Tue, 29 Sep 2020 19:00:55 -0000 Date: Tue, 29 Sep 2020 14:00:55 -0500 From: Rob Herring To: Maxime Ripard Subject: Re: [PATCH 1/2] drm/vc4: hdmi: Disable Wifi Frequencies Message-ID: <20200929190055.GA962101@bogus> References: <20200925130744.575725-1-maxime@cerno.tech> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200925130744.575725-1-maxime@cerno.tech> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200929_150058_306519_AC466862 X-CRM114-Status: GOOD ( 17.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Tim Gover , Dave Stevenson , David Airlie , Maarten Lankhorst , dri-devel@lists.freedesktop.org, Eric Anholt , bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, Thomas Zimmermann , Daniel Vetter , Frank Rowand , Phil Elwell , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Sep 25, 2020 at 03:07:43PM +0200, Maxime Ripard wrote: > There's cross-talk on the RPi4 between the 2.4GHz channels used by the WiFi > chip and some resolutions, most notably 1440p at 60Hz. > > In such a case, we can either reject entirely the mode, or lower slightly > the pixel frequency to remove the overlap. Let's go for the latter. > > Signed-off-by: Maxime Ripard > --- > .../bindings/display/brcm,bcm2711-hdmi.yaml | 6 ++++++ > drivers/gpu/drm/vc4/vc4_hdmi.c | 14 +++++++++++++- > drivers/gpu/drm/vc4/vc4_hdmi.h | 8 ++++++++ > 3 files changed, 27 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml > index 03a76729d26c..63e7fe999c0a 100644 > --- a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml > +++ b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml > @@ -76,6 +76,12 @@ properties: > resets: > maxItems: 1 > > + raspberrypi,disable-wifi-frequencies: > + type: boolean > + description: > > + Should the pixel frequencies in the WiFi frequencies range be > + avoided? Based on googling the issue, perhaps should be a common property? _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel