Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <CAA=hcWRay+5Xqz+RO_EX1-Yr2Ef_uXcLUL7dZE45d6wBga4mzA@mail.gmail.com>
In-Reply-To: <CAA=hcWRay+5Xqz+RO_EX1-Yr2Ef_uXcLUL7dZE45d6wBga4mzA@mail.gmail.com>
From:   Fabio Estevam <festevam@gmail.com>
Date:   Tue, 29 Mar 2022 08:19:26 -0300
Message-ID: <CAOMZO5ANFhewyN4TB7bXacipdOmAabz422nx5AhHrBrY87w1oQ@mail.gmail.com>
Subject: Re: [OE-core] Which vendors maintain SDIO WiFi in mainline stable kernel
To:     JH <jupiter.hce@gmail.com>
Cc:     yocto <yocto@lists.yoctoproject.org>,
        linux-wireless <linux-wireless@vger.kernel.org>,
        oe-core <openembedded-core@lists.openembedded.org>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

Hi Jupiter,

On Tue, Mar 29, 2022 at 3:16 AM JH <jupiter.hce@gmail.com> wrote:
>
> Hi,
>
> I could not understand why so many large WiFi chip vendors retreat to
> stop maintaining WiFi SDIO chips to mainline Linux kernel, and to
> settle it's chip support to out of the tree, use its own SDK and
> proprietary kernel tree to source.codeaurora.org or private repository
> which are not compatible to mainline stable kernel, the kernel
> configures are also different.
>
> I looked at the following link, the mwifiex and mwifiex_sdio support
> the Marvell (NXP) 88W88 chipset, but only kernel 4.19 was able to
> build and to run, kernel 5 cannot support 88W88 chipset, any more.
> Same to Qualcomm, the old Atheros WiFi modules are supported, the
> QCA-9377-3 chipset is in source.codeaurora.org only supported by old
> kernel 4.9.

The QCA9377 is well supported in the mainline kernel by the ath10k driver:
drivers/net/wireless/ath/ath10k/

Just use 5.10 or 5.15 stable tree and there will be no need to use an
out-of-tree driver for QCA9377.