[PATCH] ARM: dts: sun8i: NanoPi NEO Air add WiFi / eMMC

[PATCH] ARM: dts: sun8i: NanoPi NEO Air add WiFi / eMMC

[Jelle van der Waa]

Enable the WiFi (AP6212) chip and eMMC support for the NanoPi NEO Air.

Signed-off-by: Jelle van der Waa <jelle-oJJ1AqDjjO4@public.gmane.org>
---
 arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts | 45 +++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts b/arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts
index 3ba081c1f555..3813156f5d35 100644
--- a/arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts
+++ b/arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts
@@ -73,6 +73,13 @@
 			gpios = <&pio 0 10 GPIO_ACTIVE_HIGH>; /* PA10 */
 		};
 	};
+
+	wifi_pwrseq: wifi_pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_en_nanopi_neo_air>;
+		reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 */
+	};
 };
 
 &mmc0 {
@@ -85,6 +92,44 @@
 	status = "okay";
 };
 
+&mmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins_a>;
+	vmmc-supply = <&reg_vcc3v3>;
+	vqmmc-supply = <&reg_vcc3v3>;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+
+	brcmf: bcrmf@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+		interrupt-parent = <&pio>;
+		interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10 / EINT10 */
+		interrupt-names = "host-wake";
+	};
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_8bit_pins>;
+	vmmc-supply = <&reg_vcc3v3>;
+	vqmmc-supply = <&reg_vcc3v3>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
+&r_pio {
+	wifi_en_nanopi_neo_air: wifi_en_pin {
+		allwinner,pins = "PL7";
+		allwinner,function = "gpio_out";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pins_a>;
-- 
2.11.1

Re: [PATCH] ARM: dts: sun8i: NanoPi NEO Air add WiFi / eMMC

[Rask Ingemann Lambertsen]

On Sun, Feb 19, 2017 at 03:38:48PM +0100, Jelle van der Waa wrote:
> Enable the WiFi (AP6212) chip and eMMC support for the NanoPi NEO Air.
> 
> Signed-off-by: Jelle van der Waa <jelle-oJJ1AqDjjO4@public.gmane.org>
> ---
>  arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts | 45 +++++++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts b/arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts
> index 3ba081c1f555..3813156f5d35 100644
> --- a/arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts
> +++ b/arch/arm/boot/dts/sun8i-h3-nanopi-neo-air.dts
> @@ -73,6 +73,13 @@
>  			gpios = <&pio 0 10 GPIO_ACTIVE_HIGH>; /* PA10 */
>  		};
>  	};
> +
> +	wifi_pwrseq: wifi_pwrseq {

There should not be underscores in node names. See e.g.:
https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg1122967.html
https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg1145633.html
https://www.mail-archive.com/netdev%40vger.kernel.org/msg90319.html

> +&r_pio {
> +	wifi_en_nanopi_neo_air: wifi_en_pin {
> +		allwinner,pins = "PL7";
> +		allwinner,function = "gpio_out";
> +		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> +		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
> +	};
> +};

1. Underscores in the node name.
2. Pinmux nodes for GPIO usage is considered unnecessary or even harmful
these days. As a bonus, you avoid a duplicate definition.
3. Please use the generic properties, as in

	pins = "PL7";
	function ="gpio_out";
	drive-strength = <10>;
	bias-disable;

(but you should just drop the node in this case).

(Do we not usually address the dts maintainers directly when submitting
device tree patches? Just wondering.)

-- 
Rask Ingemann Lambertsen
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html