[PATCH v4 06/11] ARM: tegra: Use pwrseq-simple for the wifi in Nyan
From: Tomeu Vizoso <hidden>
Date: 2015-02-11 15:08:05
Also in:
linux-arm-kernel, linux-devicetree, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted> --- 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 */
--
1.9.3