From 97aee67e2406ea381408915e606c5f86448f3949 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 26 Nov 2025 11:26:15 +0100 Subject: 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 bdc30f8cf748..91490693432b 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>; -- cgit v1.2.3 From 863d69923bdb6f414d0a3f504f1dfaeacbc00b09 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 26 Nov 2025 11:26:16 +0100 Subject: ARM: dts: samsung: exynos4210-i9100: 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: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the Galaxy S2") Signed-off-by: Marek Szyprowski Link: https://patch.msgid.link/20251126102618.3103517-3-m.szyprowski@samsung.com Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/samsung/exynos4210-i9100.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/samsung/exynos4210-i9100.dts b/arch/arm/boot/dts/samsung/exynos4210-i9100.dts index df229fb8a16b..8a635bee59fa 100644 --- a/arch/arm/boot/dts/samsung/exynos4210-i9100.dts +++ b/arch/arm/boot/dts/samsung/exynos4210-i9100.dts @@ -853,6 +853,7 @@ #size-cells = <0>; non-removable; + cap-power-off-card; bus-width = <4>; mmc-pwrseq = <&wlan_pwrseq>; vmmc-supply = <&vtf_reg>; -- cgit v1.2.3 From 97cc9c346b2c9cde075b9420fc172137d2427711 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 26 Nov 2025 11:26:17 +0100 Subject: 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 95e0e01b6ff6..6bd902cb8f4a 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>; -- cgit v1.2.3 From 2ff147fdfa99b8cbb8c2833e685fde7c42580ae6 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 26 Nov 2025 11:26:18 +0100 Subject: ARM: dts: samsung: exynos4412-midas: 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: f77cbb9a3e5d ("ARM: dts: exynos: Add bcm4334 device node to Trats2") Signed-off-by: Marek Szyprowski Link: https://patch.msgid.link/20251126102618.3103517-5-m.szyprowski@samsung.com Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/samsung/exynos4412-midas.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi b/arch/arm/boot/dts/samsung/exynos4412-midas.dtsi index 05ddddb565ee..48245b1665a6 100644 --- 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>; -- cgit v1.2.3