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ARM: dts: Add keep-power-in-suspend to WiFi SDIO node for Peach Boards
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The Marvell mwifiex driver prevents the system to enter into a suspend
state if the card power is not preserved during a suspend/resume cycle.

So Suspend-to-RAM and Suspend-to-idle is failing on Exynos5800 Peach Pi
and Exynos5420 Peach Pit Chromebooks.

Add the keep-power-in-suspend Power Management property to the SDIO/MMC
node so the mwifiex suspend handler doesn't fail and the system is able
to enter into a suspend state.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
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Javier Martinez Canillas authored and Kukjin Kim committed May 12, 2015
1 parent 030bbdb commit b270687
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1 change: 1 addition & 0 deletions arch/arm/boot/dts/exynos5420-peach-pit.dts
Original file line number Diff line number Diff line change
Expand Up @@ -711,6 +711,7 @@
num-slots = <1>;
broken-cd;
cap-sdio-irq;
keep-power-in-suspend;
card-detect-delay = <200>;
clock-frequency = <400000000>;
samsung,dw-mshc-ciu-div = <1>;
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1 change: 1 addition & 0 deletions arch/arm/boot/dts/exynos5800-peach-pi.dts
Original file line number Diff line number Diff line change
Expand Up @@ -674,6 +674,7 @@
num-slots = <1>;
broken-cd;
cap-sdio-irq;
keep-power-in-suspend;
card-detect-delay = <200>;
clock-frequency = <400000000>;
samsung,dw-mshc-ciu-div = <1>;
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