[PATCH 3/3] ARM: dts: sunxi: enable SDIO Wi-Fi on Orange Pi Zero
From: Maxime Ripard <hidden>
Date: 2016-11-23 08:34:03
Also in:
linux-devicetree, lkml
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 <redacted> --- 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.
quoted hunk ↗ jump to hunk
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.
quoted hunk ↗ jump to hunk
+}; + &ohci1 { status = "okay"; };@@ -104,6 +136,11 @@ pins = "PA17"; function = "gpio_out"; }; + + vcc_wifi_pin_opi0: vcc_wifi_pin at 0 { + allwinner,pins = "PA20";
This should be pins
+ allwinner,function = "gpio_out";
This should be function
quoted hunk ↗ jump to hunk
+ }; }; &r_pio {@@ -111,6 +148,11 @@ pins = "PL10"; function = "gpio_out"; }; + + wifi_pwrseq_pin_opi0: wifi_pwrseq_pin at 0 { + allwinner,pins = "PL7"; + allwinner,function = "gpio_out";
And same thing here. Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 801 bytes Desc: not available URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20161123/d0892fbe/attachment.sig>