Without this property the next node can't be hogged:
&r_pio {
test_hog {
gpio-hog;
gpios = <0 6 GPIO_ACTIVE_HIGH>;
output-high;
};
};
And the appropriate error message:
"requesting hog GPIO test_hog (chip 1f02c00.pinctrl, offset 6) failed, -517"
This problem occurs because the "pinctrl-sunxi" calls
"gpiochip_add_data" that parses "gpio-ranges"
(using "of_gpiochip_add_pin_range") and registers hogs
(using "of_gpiochip_scan_gpios").
So when the gpiolib tries to register hogs it can't find any ranges and
fails.
Signed-off-by: Andrei Lalaev <andrey.lalaev@xxxxxxxxx>
---
arch/arm/boot/dts/sunxi-h3-h5.dtsi | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index d7e9f977f986..4193bf962b7d 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -404,6 +404,9 @@ pio: pinctrl@1c20800 {
#gpio-cells = <3>;
interrupt-controller;
#interrupt-cells = <3>;
+ gpio-ranges = <&pio 0 0 22>, <&pio 64 64 17>,
+ <&pio 96 96 18>, <&pio 128 128 16>,
+ <&pio 160 160 7>, <&pio 192 192 14>;
csi_pins: csi-pins {
pins = "PE0", "PE2", "PE3", "PE4", "PE5",
@@ -937,6 +940,7 @@ r_pio: pinctrl@1f02c00 {
#gpio-cells = <3>;
interrupt-controller;
#interrupt-cells = <3>;
+ gpio-ranges = <&r_pio 0 352 12>;
r_ir_rx_pin: r-ir-rx-pin {
pins = "PL11";
--
2.25.1
