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 <srinivas.kandaga...@linaro.org>
---
 arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts 
b/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts
index 34ccb26..3ca1b80 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";
@@ -155,6 +157,29 @@
                        regulator-always-on;
                };
 
+               qcom,ssbi@500000 {
+                       pmicintc: pmic@0 {
+                               pm8921_gpio: gpio@150 {
+                                       pinctrl-names = "default";
+                                       pinctrl-0 = <&wlan_default_gpios>;
+                                       wlan_default_gpios: wlan-gpios {
+                                               pios {
+                                                       pins = "gpio43";
+                                                       function = "normal";
+                                                       bias-disable;
+                                                       power-source = 
<PM8921_GPIO_S4>;
+                                               };
+                                       };
+                               };
+                       };
+               };
+
+               sdcc4_pwrseq:pwrseq {
+                       compatible = "mmc-pwrseq-simple";
+                       /* WLAN reset */
+                       reset-gpios = <&pm8921_gpio 42 GPIO_ACTIVE_LOW>;
+               };
+
                amba {
                        /* eMMC */
                        sdcc1: sdcc@12400000 {
@@ -173,6 +198,7 @@
                                status = "okay";
                                vmmc-supply = <&v3p3_fixed>;
                                vqmmc-supply = <&v3p3_fixed>;
+                               mmc-pwrseq = <&sdcc4_pwrseq>;
                        };
                };
        };
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to