[PATCH 12/14] ARM: dts: qs600: add pwrseq support to WLAN
From: Srinivas Kandagatla <hidden>
Date: 2015-09-18 12:32:12
Also in:
linux-arm-msm, linux-devicetree, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Add pwrseq support to sdcc4 which would enable a proper reset of WLAN without ugly hacks in the board support file. Signed-off-by: Srinivas Kandagatla <redacted> --- arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts | 32 +++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)
diff --git a/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts b/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts
index 8aac3be..cc9d942 100644
--- a/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts@@ -1,4 +1,6 @@ #include "qcom-apq8064-v2.0.dtsi" +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/pinctrl/qcom,pmic-gpio.h> / { model = "CompuLab CM-QS600";
@@ -12,6 +14,20 @@ stdout-path = "serial0:115200n8"; }; + pwrseq { + #address-cells = <1>; + #size-cells = <1>; + ranges; + compatible = "simple-bus"; + + sdcc4_pwrseq: sdcc4_pwrseq { + pinctrl-names = "default"; + pinctrl-0 = <&wlan_default_gpios>; + compatible = "mmc-pwrseq-simple"; + reset-gpios = <&pm8921_gpio 43 GPIO_ACTIVE_LOW>; + }; + }; + soc { rpm at 108000 { regulators {
@@ -154,6 +170,21 @@ regulator-always-on; }; + qcom,ssbi at 500000 { + pmic at 0 { + gpio at 150 { + wlan_default_gpios: wlan-gpios { + pios { + pins = "gpio43"; + function = "normal"; + bias-disable; + power-source = <PM8921_GPIO_S4>; + }; + }; + }; + }; + }; + amba { /* eMMC */ sdcc1: sdcc at 12400000 {
@@ -172,6 +203,7 @@ status = "okay"; vmmc-supply = <&v3p3_fixed>; vqmmc-supply = <&v3p3_fixed>; + mmc-pwrseq = <&sdcc4_pwrseq>; }; }; };
--
1.9.1