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ARM: dts: samsung: universal_c210: turn off SDIO WLAN chip during system suspend

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[ Upstream commit 97aee67e2406ea381408915e606c5f86448f3949 ]

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: f1b0ffaa68 ("ARM: dts: exynos: Enable WLAN support for the UniversalC210 board")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://patch.msgid.link/20251126102618.3103517-2-m.szyprowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Marek Szyprowski
2025-11-26 11:26:15 +01:00
committed by Greg Kroah-Hartman
parent 886c8f5af8
commit 83a9770432
1 changed files with 1 additions and 0 deletions
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arch/arm/boot/dts/samsung/exynos4210-universal_c210.dts
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@@ -610,6 +610,7 @@
#size-cells = <0>;
non-removable;
cap-power-off-card;
bus-width = <4>;
mmc-pwrseq = <&wlan_pwrseq>;
vmmc-supply = <&ldo5_reg>;