[PATCH v2 1/6] ARM: dts: ifc6410: Add pwrseq support for WLAN
From: Srinivas Kandagatla <hidden>
Date: 2015-08-18 13:09:29
Also in:
linux-arm-kernel, linux-arm-msm, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
This patch adds pwrseq for WLAN which resets the WLAN just before the SDIO bus is up. Signed-off-by: Srinivas Kandagatla <redacted> --- arch/arm/boot/dts/qcom-apq8064-ifc6410.dts | 31 ++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+)
diff --git a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
index 88d6655..b1f9ddb 100644
--- a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts@@ -1,5 +1,6 @@ #include "qcom-apq8064-v2.0.dtsi" #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/pinctrl/qcom,pmic-gpio.h> / { model = "Qualcomm APQ8064/IFC6410";
@@ -10,6 +11,20 @@ serial1 = &gsbi6_serial; }; + 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 { pinctrl@800000 { card_detect: card_detect {
@@ -206,6 +221,21 @@ status = "okay"; }; + qcom,ssbi@500000 { + pmic@0 { + gpio@150 { + wlan_default_gpios: wlan-gpios { + pios { + pins = "gpio43"; + function = "normal"; + bias-disable; + power-source = <PM8921_GPIO_S4>; + }; + }; + }; + }; + }; + amba { /* eMMC */ sdcc1: sdcc@12400000 {
@@ -227,6 +257,7 @@ status = "okay"; vmmc-supply = <&ext_3p3v>; vqmmc-supply = <&pm8921_lvs1>; + mmc-pwrseq = <&sdcc4_pwrseq>; }; }; };
--
1.9.1