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authorTomeu Vizoso <tomeu.vizoso@collabora.com>2015-03-18 12:52:21 +0300
committerThierry Reding <treding@nvidia.com>2015-03-24 12:51:35 +0300
commit1d1690b85726540c3d2bf0907ce4b30bfec42dc1 (patch)
tree2b1d84e39ddfe2cfb72ca7e003b4b3137c37b8bf /arch/arm/boot/dts/tegra124-nyan.dtsi
parenta0b9c1cb1636543b659e019a59c048bb911c80e2 (diff)
downloadlinux-1d1690b85726540c3d2bf0907ce4b30bfec42dc1.tar.xz
ARM: tegra: Use pwrseq-simple for the wifi in Nyan
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>
Diffstat (limited to 'arch/arm/boot/dts/tegra124-nyan.dtsi')
-rw-r--r--arch/arm/boot/dts/tegra124-nyan.dtsi11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi b/arch/arm/boot/dts/tegra124-nyan.dtsi
index 579b0b9c7383..d3a95f937dfb 100644
--- a/arch/arm/boot/dts/tegra124-nyan.dtsi
+++ b/arch/arm/boot/dts/tegra124-nyan.dtsi
@@ -207,7 +207,6 @@
regulator-name = "+1.8V_VDDIO";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-boot-on;
regulator-always-on;
};
@@ -364,12 +363,20 @@
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 */