riscv: dts: thead: Add edge-triggered option for wireless nodes

After extensive testing it seems like the wireless chips used on the
TH1520 SoC - aic8800 and rtk connected to PCA9557 I/O expander are
connected so in an unstable way. There is a need to flip GPIO values
0->1 with some delay in order for the chips to start predictably.

Change-Id: Ib2d11139f51dbb37edc0b0aed3a61f459eed8c43
Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>

diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
index be72c82de6aebfc1458e65499212a2e7d3d70b53..935799df0d66e8efbb5e2e31146b78c94aa19bed 100644 (file)
--- a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
@@ -390,6 +390,7 @@
                label = "rfkill-sdio-wlan";
                radio-type = "wlan";
                shutdown-gpios = <&pcal6408ahk_c 4 GPIO_ACTIVE_HIGH>;
+               edge-triggered;
        };
 
        rfkill-sdio-bluetooth {
@@ -397,6 +398,7 @@
                label = "rfkill-sdio-bluetooth";
                radio-type = "bluetooth";
                shutdown-gpios = <&pcal6408ahk_c 5 GPIO_ACTIVE_HIGH>;
+               edge-triggered;
        };
 };