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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30F72C433FE for ; Thu, 17 Nov 2022 16:13:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234960AbiKQQNU (ORCPT ); Thu, 17 Nov 2022 11:13:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49736 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234550AbiKQQNR (ORCPT ); Thu, 17 Nov 2022 11:13:17 -0500 X-Greylist: delayed 411 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Thu, 17 Nov 2022 08:13:16 PST Received: from node.akkea.ca (li1434-30.members.linode.com [45.33.107.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E9B655B0 for ; Thu, 17 Nov 2022 08:13:15 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by node.akkea.ca (Postfix) with ESMTP id 8E62E4E2006; Thu, 17 Nov 2022 16:06:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akkea.ca; s=mail; t=1668701184; bh=nSRixPRj+Dqu0EPWt9G4d/KeW548+HwOWqKxLYu//cg=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=lCOYAHJefgVZ7OHh3BSYKMPJ+KuvYACEyaTcysCDzZJ8nC0dkYeXLeEvsLuQ9iv5s h1OJvdI6DEKSEP8p6MSAWyXTE9vB/Tzozv4tw7U9jqTBf5uuM090uc33DWREplX1Vr HWb7eVDndEfpv7WFNoY4SRYfkRQvF8f3Ikf+bKjA= X-Virus-Scanned: Debian amavisd-new at mail.akkea.ca Received: from node.akkea.ca ([127.0.0.1]) by localhost (mail.akkea.ca [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id dosqdrilJmOv; Thu, 17 Nov 2022 16:06:24 +0000 (UTC) Received: from www.akkea.ca (localhost [127.0.0.1]) by node.akkea.ca (Postfix) with ESMTP id 04BA74E2003; Thu, 17 Nov 2022 16:06:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akkea.ca; s=mail; t=1668701184; bh=nSRixPRj+Dqu0EPWt9G4d/KeW548+HwOWqKxLYu//cg=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=lCOYAHJefgVZ7OHh3BSYKMPJ+KuvYACEyaTcysCDzZJ8nC0dkYeXLeEvsLuQ9iv5s h1OJvdI6DEKSEP8p6MSAWyXTE9vB/Tzozv4tw7U9jqTBf5uuM090uc33DWREplX1Vr HWb7eVDndEfpv7WFNoY4SRYfkRQvF8f3Ikf+bKjA= MIME-Version: 1.0 Date: Thu, 17 Nov 2022 08:06:24 -0800 From: Angus Ainslie To: Andy Green Cc: Arend van Spriel , Shengyu Qu , franky.lin@broadcom.com, linux-wireless@vger.kernel.org Subject: Re: AP6275 / bcm43752 pcie on mainline brcmf In-Reply-To: <638afa8e-a393-410c-3182-0d8e9b6da17d@warmcat.com> References: <08416710-655a-c87c-a599-3fe2563f7de4@warmcat.com> <18470a1e910.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <184720fc920.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <625f1d5d-e137-7ad7-96b9-92035e87df8b@broadcom.com> <638afa8e-a393-410c-3182-0d8e9b6da17d@warmcat.com> Message-ID: <7bf5884906b1abc30adebd3c915a3259@akkea.ca> X-Sender: angus@akkea.ca User-Agent: Roundcube Webmail/1.3.17 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 2022-11-17 04:01, Andy Green wrote: > On 11/17/22 09:23, Arend van Spriel wrote: >> On 11/16/2022 1:25 PM, Shengyu Qu wrote: >>> Got a new version of downstream driver and firmware here: >>> https://gitlab.com/rk3588_linux/linux/external/rkwifibt/-/tree/linux-5.10-gen-rkr3.4 >> >> Thanks for that. The firmware indeed seems to originate from Synaptics >> and this module can be found on wifi-alliance product finder: >> >> https://www.wi-fi.org/product-finder-results?sort_by=certified&sort_order=desc&keywords=ap6275 >> >> We have no known contacts there and they do not seem to have much >> interest in open-source. In that gitlab repo I see they are providing >> bcmdhd driver and I assume they consider that sufficient. >> >> Will see what I can do. First have to think on how to approach this >> failure to get most out of a debug effort. I do not have the module >> over here so we would need to go back and forth. The fact that the >> issue is seen on both SDIO and PCIe is somewhat encouraging. > > Yes it seems that at some point with some firmware, SDIO has worked > for, eg, Angus. And, it should work well with bchdhd (but that does > not seem to work for scan for me on v6.1-rc5 uplevel with the firmware > load changed to use kernel apis; but the firmware has no timeout on > bcmdhd). So it doesn't feel a million miles away. > This is the firmware we have been using for SDIO. It was sent to us directly by SparkLAN so not sure how it compares to other variants. https://source.puri.sm/Librem5/firmware-brcm43752-nonfree/-/tree/master/firmware/brcm Angus > I have the hw, and (paid) time to help with debugging this "pair of > hands" style. I'm also a little familiar with the kernel code and can > try jiggle things autonomously if you can prompt what is interesting. > > -Andy > >> Regards, >> Arend