netdev - Re: [PATCH] brcmfmac: use ISO3166 country code and 0 rev as fallback

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Message-ID: <20210428124228.GH15093@dragon>
Date:   Wed, 28 Apr 2021 20:42:29 +0800
From:   Shawn Guo <shawn.guo@...aro.org>
To:     Arend van Spriel <arend.vanspriel@...adcom.com>
Cc:     Kalle Valo <kvalo@...eaurora.org>,
        Rafał Miłecki <rafal@...ecki.pl>,
        Arend van Spriel <aspriel@...il.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Chi-hsien Lin <chi-hsien.lin@...ineon.com>,
        Wright Feng <wright.feng@...ineon.com>,
        Chung-hsien Hsu <chung-hsien.hsu@...ineon.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        SHA-cyfmac-dev-list@...ineon.com
Subject: Re: [PATCH] brcmfmac: use ISO3166 country code and 0 rev as fallback

On Wed, Apr 28, 2021 at 02:03:07PM +0200, Arend van Spriel wrote:
> On 4/25/2021 1:02 PM, Shawn Guo wrote:
> > Instead of aborting country code setup in firmware, use ISO3166 country
> > code and 0 rev as fallback, when country_codes mapping table is not
> > configured.  This fallback saves the country_codes table setup for recent
> > brcmfmac chipsets/firmwares, which just use ISO3166 code and require no
> > revision number.
> 
> I am somewhat surprised, but with the brcm-spinoffs (cypress/infineon and
> synaptics) my understanding may have been surpassed by reality. Would you
> happen to know which chipsets/firmwares require only ISO3166 code and no
> rev?

The "no rev" here actually means 'rev' field being zero.  The chipset
I'm running is a BCM43012 from Synaptics, I think.

Firmware: BCM43012/2 wl0: Apr 16 2021 15:25:36 version 18.35.389.63.t2 (wlan=r836194) FWID 01-a8c7bac

Shawn