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ARM: tegra: Use pwrseq-simple for the wifi in Nyan

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The Nyan boards have a Marvell 88w8897 wifi card connected through SDIO
that needs the reset line to be asserted before mmc power up and deasserted
afterwards.

This patch also adds references to the power supplies of the card so that
the regulators are enabled when it's probed.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Tomeu Vizoso 2015-03-18 10:52:21 +01:00 committed by Thierry Reding
parent a0b9c1cb16
commit 1d1690b857
1 changed files with 9 additions and 2 deletions
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11
arch/arm/boot/dts/tegra124-nyan.dtsi
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@ -207,7 +207,6 @@ vddio_1v8: sd5 {
regulator-name = "+1.8V_VDDIO";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
@ -364,12 +363,20 @@ hda@0,70030000 {
status = "okay";
};
sdhci0_pwrseq: sdhci0_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpio TEGRA_GPIO(X, 7) GPIO_ACTIVE_LOW>;
};
sdhci@0,700b0000 { /* WiFi/BT on this bus */
status = "okay";
power-gpios = <&gpio TEGRA_GPIO(X, 7) GPIO_ACTIVE_HIGH>;
bus-width = <4>;
no-1-8-v;
non-removable;
mmc-pwrseq = <&sdhci0_pwrseq>;
vmmc-supply = <&vdd_3v3_lp0>;
vqmmc-supply = <&vddio_1v8>;
};
sdhci@0,700b0400 { /* SD Card on this bus */