]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
ARM: dts: samsung: exynos4412-midas: turn off SDIO WLAN chip during system suspend
authorMarek Szyprowski <m.szyprowski@samsung.com>
Wed, 26 Nov 2025 10:26:18 +0000 (11:26 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 18 Dec 2025 12:55:11 +0000 (13:55 +0100)
commit2d2fd5b65b1ed187394f73ca05de24c18d7ea2f7
treee3f877417b13fcc51a00e921e94aaeeebe51afd8
parentbac13d9609b50452f732ed91ac5d53d5e24711bb
ARM: dts: samsung: exynos4412-midas: turn off SDIO WLAN chip during system suspend

[ Upstream commit 2ff147fdfa99b8cbb8c2833e685fde7c42580ae6 ]

Commit 8c3170628a9c ("wifi: brcmfmac: keep power during suspend if board
requires it") changed default behavior of the BRCMFMAC driver, which now
keeps SDIO card powered during system suspend to enable optional support
for WOWL. This feature is not supported by the legacy Exynos4 based
boards and leads to WLAN disfunction after system suspend/resume cycle.
Fix this by annotating SDIO host used by WLAN chip with
'cap-power-off-card' property, which should have been there from the
beginning.

Fixes: f77cbb9a3e5d ("ARM: dts: exynos: Add bcm4334 device node to Trats2")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://patch.msgid.link/20251126102618.3103517-5-m.szyprowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/arm/boot/dts/samsung/exynos4412-midas.dtsi