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>

diff --git a/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi b/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi
index 3d5aace668dc5a84f6be42ad87d9a3b244c21b00..977ecc838b0cbe801f61783d2aa278cd7ef7c28e 100644 (file)
--- a/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi
+++ b/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi
@@ -1440,6 +1440,7 @@
        #address-cells = <1>;
        #size-cells = <0>;
        non-removable;
+       cap-power-off-card;
        bus-width = <4>;
 
        mmc-pwrseq = <&wlan_pwrseq>;