Getting rg552 to work with debian
this is rg552 a console supported by velvet os
i got dts for joysticks and buttons working pretty quickly
the buttons and joysticks .dts part
/*gamepad*/
gpio_mux: mux-controller {
status = "okay";
compatible = "gpio-mux";
#mux-control-cells = <0>;
mux-gpios = <&gpio1 RK_PA1 GPIO_ACTIVE_LOW>,
<&gpio1 RK_PA0 GPIO_ACTIVE_LOW>;
/*mux-en-gpio = <&gpio1 RK_PA4 GPIO_ACTIVE_LOW>; // FIXME: unused in driver*/
};
adc_mux: adc-mux {
status = "okay";
compatible = "io-channel-mux";
io-channels = <&saradc 4>;
io-channel-names = "parent";
#io-channel-cells = <1>;
mux-controls = <&gpio_mux>;
channels = "0", "1", "2", "3";
settle-time-us = <100>;
};
adc-joystick {
compatible = "adc-joystick";
io-channels = <&adc_mux 0>,
<&adc_mux 1>,
<&adc_mux 2>,
<&adc_mux 3>;
#address-cells = <1>;
#size-cells = <0>;
poll-interval = <60>;
axis@0 {
reg = <0>;
abs-flat = <32>;
abs-fuzz = <16>;
abs-range = <1024 0>;
linux,code = ;
};
axis@1 {
reg = <1>;
abs-flat = <32>;
abs-fuzz = <16>;
abs-range = <0 1024>;
linux,code = ;
};
axis@2 {
reg = <2>;
abs-flat = <32>;
abs-fuzz = <16>;
abs-range = <1024 0>;
linux,code = ;
};
axis@3 {
reg = <3>;
abs-flat = <32>;
abs-fuzz = <16>;
abs-range = <0 1024>;
linux,code = ;
};
};
gpio-buttons {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&btn_pins>;
sw1 {
gpios = <&gpio3 RK_PA0 GPIO_ACTIVE_LOW>;
label = "GPIO DPAD-UP";
linux,code = ;
};
sw2 {
gpios = <&gpio3 RK_PA1 GPIO_ACTIVE_LOW>;
label = "GPIO DPAD-DOWN";
linux,code = ;
};
sw3 {
gpios = <&gpio3 RK_PA3 GPIO_ACTIVE_LOW>;
label = "GPIO DPAD-LEFT";
linux,code = ;
};
sw4 {
gpios = <&gpio3 RK_PA2 GPIO_ACTIVE_LOW>;
label = "GPIO DPAD-RIGHT";
linux,code = ;
};
sw5 {
gpios = <&gpio3 RK_PA6 GPIO_ACTIVE_LOW>;
label = "GPIO KEY BTN-A";
linux,code = ;
};
sw6 {
gpios = <&gpio3 RK_PA7 GPIO_ACTIVE_LOW>;
label = "GPIO BTN-B";
linux,code = ;
};
sw7 {
gpios = <&gpio3 RK_PA4 GPIO_ACTIVE_LOW>;
label = "GPIO BTN-X";
linux,code = ;
};
sw8 {
gpios = <&gpio3 RK_PA5 GPIO_ACTIVE_LOW>;
label = "GPIO BTN-Y";
linux,code = ;
};
sw9 {
gpios = <&gpio3 RK_PB1 GPIO_ACTIVE_LOW>;
label = "GPIO BTN_SELECT";
linux,code = ;
};
sw10 {
gpios = <&gpio3 RK_PB0 GPIO_ACTIVE_LOW>;
label = "GPIO BTN_START";
linux,code = ;
};
sw11 {
gpios = <&gpio3 RK_PC0 GPIO_ACTIVE_LOW>;
label = "GPIO BTN_F";
linux,code = ;
};
sw12 {
gpios = <&gpio3 RK_PD0 GPIO_ACTIVE_LOW>;
label = "GPIO BTN_TL";
linux,code = ;
};
sw13 {
gpios = <&gpio3 RK_PD2 GPIO_ACTIVE_LOW>;
label = "GPIO BTN_TR";
linux,code = ;
};
sw14 {
gpios = <&gpio3 RK_PD1 GPIO_ACTIVE_LOW>;
label = "GPIO BTN_TL2";
linux,code = ;
};
sw15 {
gpios = <&gpio3 RK_PD3 GPIO_ACTIVE_LOW>;
label = "GPIO BTN_TR2";
linux,code = ;
};
sw16 {
gpios = <&gpio3 RK_PB3 GPIO_ACTIVE_LOW>;
label = "GPIO BTN_THUMBL";
linux,code = ;
};
sw17 {
gpios = <&gpio3 RK_PB4 GPIO_ACTIVE_LOW>;
label = "GPIO BTN_THUMBR";
linux,code = ;
};
};
/*end gamepad*/
i still don't fully get dts's yet it wasn't hard
the special driver rocknix came up with seams like a total overkill
but then the wifi broke again because why not
and after testing it seamd to be only broken when the ^ gpio keys part of dts was present (the joystic's were fine for whatever reason)
i assumed it was insufficient power issue or similar, tried to mitigate that for half a day
also both wifi and buttons using gpio3 was another misleading factor
when i finally got tired, just for fun i tried replacing
vcc_wifi: vcc-wifi-regulator {
compatible = "regulator-fixed";
enable-active-high;
enable-gpios = <&gpio3 RK_PC1 GPIO_ACTIVE_HIGH>;
gpio = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&wifi_pwr>;
regulator-name = "wifi_enable";
regulator-always-on;
regulator-boot-on;
};
with sth else
like gpio regulator
which functionally should effectively do the same thing as fixed regulator (but have ability to change states that i don't even use)
've managed to compose
vcc_wifi: gpio-regulator {
compatible = "regulator-gpio";
regulator-min-microvolt = <0>;
regulator-max-microvolt = <5000000>;
states = < 5000000 0x2
0 0x1
5000000 0x0>;
enable-active-high;
enable-gpios = <&gpio3 RK_PC1 GPIO_ACTIVE_HIGH>;
gpio = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&wifi_pwr>;
regulator-name = "wifi_enable";
// regulator-always-on;
regulator-boot-on;
};
and after using it instead, wifi just worked™
no idea why but at this point i didn't care and just took it