arm64: dts: clearfog-gt-8k: add wlan_disable signal hog

There is currently no DT binding for GPIO rfkill signals. To make
mini-PCIe attached WiFi devices work, use gpio-hog to hold the
wlan_disable signal de-asserted.

Signed-off-by: Thomas Schreiber <tschreibe@gmail.com>
[baruch: add pinctrl node; rename tag]
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

diff --git a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
index 2468762..9143aa1 100644 (file)
--- a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
@@ -226,6 +226,11 @@
                marvell,function = "gpio";
        };
 
+       cp0_wlan_disable_pins: wlan-disable-pins {
+               marvell,pins = "mpp51";
+               marvell,function = "gpio";
+       };
+
        cp0_sdhci_pins: sdhci-pins {
                marvell,pins = "mpp55", "mpp56", "mpp57", "mpp58", "mpp59",
                               "mpp60", "mpp61";
@@ -235,7 +240,7 @@
 
 &cp0_pcie0 {
        pinctrl-names = "default";
-       pinctrl-0 = <&cp0_pci0_reset_pins>;
+       pinctrl-0 = <&cp0_pci0_reset_pins &cp0_wlan_disable_pins>;
        reset-gpios = <&cp0_gpio2 0 GPIO_ACTIVE_LOW>;
        status = "okay";
 };
@@ -253,6 +258,12 @@
                output-low;
        };
 
+       wlan_disable {
+               gpio-hog;
+               gpios = <19 GPIO_ACTIVE_LOW>;
+               output-low;
+       };
+
        lte_disable {
                gpio-hog;
                gpios = <21 GPIO_ACTIVE_LOW>;