From 97aee67e2406ea381408915e606c5f86448f3949 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 26 Nov 2025 11:26:15 +0100 Subject: [PATCH] ARM: dts: samsung: universal_c210: turn off SDIO WLAN chip during system suspend 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: f1b0ffaa686f ("ARM: dts: exynos: Enable WLAN support for the UniversalC210 board") Signed-off-by: Marek Szyprowski Link: https://patch.msgid.link/20251126102618.3103517-2-m.szyprowski@samsung.com Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/samsung/exynos4210-universal_c210.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/samsung/exynos4210-universal_c210.dts b/arch/arm/boot/dts/samsung/exynos4210-universal_c210.dts index bdc30f8cf748f..91490693432b6 100644 --- a/arch/arm/boot/dts/samsung/exynos4210-universal_c210.dts +++ b/arch/arm/boot/dts/samsung/exynos4210-universal_c210.dts @@ -610,6 +610,7 @@ #size-cells = <0>; non-removable; + cap-power-off-card; bus-width = <4>; mmc-pwrseq = <&wlan_pwrseq>; vmmc-supply = <&ldo5_reg>; -- 2.47.3