linux-kernel - Re: [PATCH v4 1/4] wifi: brcmfmac: Rename Cypress 89459 to BCM4355

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Date:   Mon, 13 Feb 2023 16:51:11 +0000 (UTC)
From:   Kalle Valo <kvalo@...nel.org>
To:     Hector Martin <marcan@...can.st>
Cc:     Arend van Spriel <aspriel@...il.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Alexander Prutskov <alep@...ress.com>,
        Ian Lin <ian.lin@...ineon.com>,
        Joseph chuang <jiac@...ress.com>,
        Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Aditya Garg <gargaditya08@...e.com>,
        Jonas Gorski <jonas.gorski@...il.com>, asahi@...ts.linux.dev,
        linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        SHA-cyfmac-dev-list@...ineon.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Hector Martin <marcan@...can.st>,
        Arend van Spriel <arend.vanspriel@...adcom.com>
Subject: Re: [PATCH v4 1/4] wifi: brcmfmac: Rename Cypress 89459 to BCM4355

Hector Martin <marcan@...can.st> wrote:

> The commit that introduced support for this chip incorrectly claimed it
> is a Cypress-specific part, while in actuality it is just a variant of
> BCM4355 silicon (as evidenced by the chip ID).
> 
> The relationship between Cypress products and Broadcom products isn't
> entirely clear but given what little information is available and prior
> art in the driver, it seems the convention should be that originally
> Broadcom parts should retain the Broadcom name.
> 
> Thus, rename the relevant constants and firmware file. Also rename the
> specific 89459 PCIe ID to BCM43596, which seems to be the original
> subvariant name for this PCI ID (as defined in the out-of-tree bcmdhd
> driver).
> 
> Since Cypress added this part and will presumably be providing its
> supported firmware, we keep the CYW designation for this device.
> 
> We also drop the RAW device ID in this commit. We don't do this for the
> other chips since apparently some devices with them exist in the wild,
> but there is already a 4355 entry with the Broadcom subvendor and WCC
> firmware vendor, so adding a generic fallback to Cypress seems
> redundant (no reason why a device would have the raw device ID *and* an
> explicitly programmed subvendor).
> 
> Fixes: dce45ded7619 ("brcmfmac: Support 89459 pcie")
> Reviewed-by: Arend van Spriel <arend.vanspriel@...adcom.com>
> Signed-off-by: Hector Martin <marcan@...can.st>

4 patches applied to wireless-next.git, thanks.

54f01f56cf63 wifi: brcmfmac: Rename Cypress 89459 to BCM4355
69005e67ce54 wifi: brcmfmac: pcie: Add IDs/properties for BCM4355
bf8bbd903f07 wifi: brcmfmac: pcie: Add IDs/properties for BCM4377
6a142f70774f wifi: brcmfmac: pcie: Perform correct BCM4364 firmware selection

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230212063813.27622-2-marcan@marcan.st/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches