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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1426672363-30667-7-git-send-email-tomeu.vizoso@collabora.com>
Date:	Wed, 18 Mar 2015 10:52:21 +0100
From:	Tomeu Vizoso <tomeu.vizoso@...labora.com>
To:	linux-tegra@...r.kernel.org
Cc:	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v6 06/12] 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@...labora.com>
Acked-by: Stephen Warren <swarren@...dia.com>
Reviewed-by: Alexandre Courbot <acourbot@...dia.com>
---
 arch/arm/boot/dts/tegra124-nyan.dtsi | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

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 */
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/