Re: Bug#1142442: linux: no installer udeb ships reset-gpio, breaking SDIO Wi-Fi (mmc-pwrseq-simple) in d-i on ARM Chromebooks

Cyril Brulebois <[email protected]> Mon, 20 Jul 2026 02:54:32 +0200
Newsgroups gmane.linux.debian.devel.boot
Organization Debian
Message-ID <[email protected]>
--cl4ld3sunr727m55
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Hi Daniel,

Daniel Golle <[email protected]> (2026-07-20):
> Package: src:linux
> Version: 7.1.3-1
> Severity: normal
> Tags: patch
> X-Debbugs-Cc: [email protected]
>=20
> Dear Maintainers,
>=20
> The debian-installer initrds for arm64 cannot bring up SDIO-attached
> Wi-Fi devices sitting behind an mmc-pwrseq-simple power sequencer,
> because the reset-gpio module is not included in any installer udeb.
>=20
> Observed on a MediaTek MT8186 Chromebook (Lenovo IdeaPad Slim 3
> Chrome 14M868, device-tree compatible google,steelix-sku393221,
> "corsola" family) with an MT7921S Wi-Fi module on SDIO, booting the
> current daily arm64 netboot installer (kernel 7.1.3+deb14-arm64):
> ethdetect finds no NIC, manually loading mt7921s does nothing, and
> /sys/kernel/debug/devices_deferred shows:
>=20
>   wifi-pwrseq     pwrseq_simple: reset control not ready
>   11240000.mmc    platform: supplied wifi-pwrseq not ready

[=E2=80=A6]

=46rom an installer team point of view: great work, thank you!


Cheers,
--=20
Cyril Brulebois ([email protected])            <https://debamax.com/>
D-I release manager -- Release team member -- Freelance Consultant

--cl4ld3sunr727m55
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=1HuF
-----END PGP SIGNATURE-----

--cl4ld3sunr727m55--