netdev - Re: [PATCH v2] wifi: brcmfmac: add Cypress 43439 SDIO ids

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Date:   Sat, 8 Apr 2023 21:44:35 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Marek Vasut <marex@...x.de>
Cc:     linux-wireless@...r.kernel.org,
        Hans de Goede <hdegoede@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Arend van Spriel <aspriel@...il.com>,
        Danny van Heumen <danny@...nyvanheumen.nl>,
        Eric Dumazet <edumazet@...gle.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Kalle Valo <kvalo@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
        Paul Cercueil <paul@...pouillou.net>,
        SHA-cyfmac-dev-list@...ineon.com,
        Ulf Hansson <ulf.hansson@...aro.org>,
        brcm80211-dev-list.pdl@...adcom.com, linux-mmc@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH v2] wifi: brcmfmac: add Cypress 43439 SDIO ids

On Sat, Apr 08, 2023 at 06:44:40PM +0200, Marek Vasut wrote:
> On 4/8/23 17:24, Simon Horman wrote:
> > On Fri, Apr 07, 2023 at 10:37:52PM +0200, Marek Vasut wrote:
> > > Add SDIO ids for use with the muRata 1YN (Cypress CYW43439).
> > > The odd thing about this is that the previous 1YN populated
> > > on M.2 card for evaluation purposes had BRCM SDIO vendor ID,
> > > while the chip populated on real hardware has a Cypress one.
> > > The device ID also differs between the two devices. But they
> > > are both 43439 otherwise, so add the IDs for both.
> > > 
> > > On-device 1YN (43439), the new one, chip label reads "1YN":
> > > ```
> > > /sys/.../mmc_host/mmc2/mmc2:0001 # cat vendor device
> > > 0x04b4
> > > 0xbd3d
> > > ```
> > > 
> > > EA M.2 evaluation board 1YN (43439), the old one, chip label reads "1YN ES1.4":
> > > ```
> > > /sys/.../mmc_host/mmc0/mmc0:0001/# cat vendor device
> > > 0x02d0
> > > 0xa9a6
> > > ```
> > > 
> > > Reviewed-by: Hans de Goede <hdegoede@...hat.com>
> > > Fixes: be376df724aa3 ("wifi: brcmfmac: add 43439 SDIO ids and initialization")
> > > Signed-off-by: Marek Vasut <marex@...x.de>
> > 
> > Reviewed-by: Simon Horman <simon.horman@...igine.com>
> > 
> > 
> > > ---
> > > NOTE: Please drop the Fixes tag if this is considered unjustified
> > 
> > <2c>
> > Feels more like enablement than a fix to me.
> > </2c>
> 
> I added it because
> 
> Documentation/process/stable-kernel-rules.rst
> 
> L24  - New device IDs and quirks are also accepted.

Thanks. If I was aware of that, I had forgotten.

> So, really, up to the maintainer whether they are fine with it being
> backported to stable releases or not. I don't really mind either way.

Yes, I completely agree.