On Wed, Nov 23, 2016 at 3:59 PM, Maxime Ripard
<maxime.ripard@xxxxxxxxxxxxxxxxxx> wrote:
> Hi,
>
> On Tue, Nov 22, 2016 at 12:24:21AM +0800, Icenowy Zheng wrote:
>> There's a Allwinner's XR819 SDIO Wi-Fi module soldered on the board of
>> Orange Pi Zero, which used a dedicated regulator to power.
>>
>> Add the device tree node of the regulator, the enable gpio (with
>> mmc-pwrseq) and the sdio controller.
>>
>> There's a out-of-tree driver tested to work with this device tree.
>>
>> Signed-off-by: Icenowy Zheng <icenowy@xxxxxxxx>
>> ---
>> New patch in the patchset, since a out-of-tree working xradio driver is done.
>>
>> If there is any problem in this patch, it can be omitted.
>
> No particular problem with this one, however it can and should be
> merged with the previous one.
>
> Minor comments below though.
>
>>
>> arch/arm/boot/dts/sun8i-h2plus-orangepi-zero.dts | 42 ++++++++++++++++++++++++
>> 1 file changed, 42 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/sun8i-h2plus-orangepi-zero.dts b/arch/arm/boot/dts/sun8i-h2plus-orangepi-zero.dts
>> index b428e47..39cac26 100644
>> --- a/arch/arm/boot/dts/sun8i-h2plus-orangepi-zero.dts
>> +++ b/arch/arm/boot/dts/sun8i-h2plus-orangepi-zero.dts
>> @@ -79,6 +79,24 @@
>> gpios = <&pio 0 17 GPIO_ACTIVE_HIGH>;
>> };
>> };
>> +
>> + reg_vcc_wifi: reg_vcc_wifi {
>> + compatible = "regulator-fixed";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&vcc_wifi_pin_opi0>;
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + regulator-name = "vcc-wifi";
>> + enable-active-high;
>> + gpio = <&pio 0 20 GPIO_ACTIVE_HIGH>;
>> + };
>> +
>> + wifi_pwrseq: wifi_pwrseq {
>> + compatible = "mmc-pwrseq-simple";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&wifi_pwrseq_pin_opi0>;
>> + reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>;
>> + };
>> };
>>
>> &ehci1 {
>> @@ -95,6 +113,20 @@
>> status = "okay";
>> };
>>
>> +&mmc1 {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&mmc1_pins_a>;
>> + vmmc-supply = <®_vcc_wifi>;
>> + mmc-pwrseq = <&wifi_pwrseq>;
>> + bus-width = <4>;
>> + non-removable;
>> + status = "okay";
>> +};
>> +
>> +&mmc1_pins_a {
>> + allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
>
> This should be bias-pull-up.
IIRC I already added this for _all_ existing mmc pinmux settings?
>
>> +};
>> +
>> &ohci1 {
>> status = "okay";
>> };
>> @@ -104,6 +136,11 @@
>> pins = "PA17";
>> function = "gpio_out";
>> };
>> +
>> + vcc_wifi_pin_opi0: vcc_wifi_pin@0 {
>> + allwinner,pins = "PA20";
>
> This should be pins
>
>> + allwinner,function = "gpio_out";
>
> This should be function
>
>> + };
>> };
>>
>> &r_pio {
>> @@ -111,6 +148,11 @@
>> pins = "PL10";
>> function = "gpio_out";
>> };
>> +
>> + wifi_pwrseq_pin_opi0: wifi_pwrseq_pin@0 {
>> + allwinner,pins = "PL7";
>> + allwinner,function = "gpio_out";
>
> And same thing here.
Might we do away with the pinmux for gpio pins tradition?
Recent patches I've sent all omit them.
ChenYu
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