From 97cc9c346b2c9cde075b9420fc172137d2427711 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 26 Nov 2025 11:26:17 +0100 Subject: [PATCH] ARM: dts: samsung: exynos4210-trats: 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: a19f6efc01df ("ARM: dts: exynos: Enable WLAN support for the Trats board") Signed-off-by: Marek Szyprowski Link: https://patch.msgid.link/20251126102618.3103517-4-m.szyprowski@samsung.com Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/samsung/exynos4210-trats.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/samsung/exynos4210-trats.dts b/arch/arm/boot/dts/samsung/exynos4210-trats.dts index 95e0e01b6ff6b..6bd902cb8f4ad 100644 --- a/arch/arm/boot/dts/samsung/exynos4210-trats.dts +++ b/arch/arm/boot/dts/samsung/exynos4210-trats.dts @@ -518,6 +518,7 @@ #size-cells = <0>; non-removable; + cap-power-off-card; bus-width = <4>; mmc-pwrseq = <&wlan_pwrseq>; vmmc-supply = <&tflash_reg>; -- 2.47.3