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[v6,06/12] ARM: tegra: Use pwrseq-simple for the wifi in Nyan

Message ID 1426672363-30667-7-git-send-email-tomeu.vizoso@collabora.com
State Deferred
Headers show

Commit Message

Tomeu Vizoso March 18, 2015, 9:52 a.m. UTC 
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>
---
 arch/arm/boot/dts/tegra124-nyan.dtsi | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
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Patch

diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi b/arch/arm/boot/dts/tegra124-nyan.dtsi
index 579b0b9..d3a95f9 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 */