linux-kernel - Re: [PATCHv2 1/2] ARM: dts: sun8i: add FriendlyARM NanoPi Duo2

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Date:   Sun, 3 Nov 2019 00:11:17 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Karl Palsson <karlp@...ak.net.au>
Cc:     Maxime Ripard <mripard@...nel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCHv2 1/2] ARM: dts: sun8i: add FriendlyARM NanoPi Duo2

On Sat, Nov 2, 2019 at 4:56 AM Karl Palsson <karlp@...ak.net.au> wrote:
>
> This is an Allwinner H3 based board, with 512MB ram, a USB OTG port,
> microsd slot, an onboard AP6212A wifi/bluetooth module, and a CSI
> connector.
>
> Full details and schematic available from vendor:
> http://wiki.friendlyarm.com/wiki/index.php/NanoPi_Duo2
>
> Signed-off-by: Karl Palsson <karlp@...ak.net.au>
> ---
> Change since v1:
> * dropped accidental commentary
> * sorted nodes
> * added enable gpio for vdd-cpu
> * added vdd-dram and vcc-sys
> * dropped default led trigger
>
>  arch/arm/boot/dts/Makefile                 |   1 +
>  arch/arm/boot/dts/sun8i-h3-nanopi-duo2.dts | 174 +++++++++++++++++++++
>  2 files changed, 175 insertions(+)
>  create mode 100644 arch/arm/boot/dts/sun8i-h3-nanopi-duo2.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 9159fa2cea90..d8bf02abcda1 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1096,6 +1096,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
>         sun8i-h3-beelink-x2.dtb \
>         sun8i-h3-libretech-all-h3-cc.dtb \
>         sun8i-h3-mapleboard-mp130.dtb \
> +       sun8i-h3-nanopi-duo2.dtb \
>         sun8i-h3-nanopi-m1.dtb  \
>         sun8i-h3-nanopi-m1-plus.dtb \
>         sun8i-h3-nanopi-neo.dtb \
> diff --git a/arch/arm/boot/dts/sun8i-h3-nanopi-duo2.dts b/arch/arm/boot/dts/sun8i-h3-nanopi-duo2.dts
> new file mode 100644
> index 000000000000..c73f59900975
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-h3-nanopi-duo2.dts
> @@ -0,0 +1,174 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (C) 2019 Karl Palsson <karlp@...ak.net.au>
> + */
> +
> +/dts-v1/;
> +#include "sun8i-h3.dtsi"
> +#include "sunxi-common-regulators.dtsi"
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +
> +/ {
> +       model = "FriendlyARM NanoPi Duo2";
> +       compatible = "friendlyarm,nanopi-duo2", "allwinner,sun8i-h3";
> +
> +       aliases {
> +               serial0 = &uart0;
> +       };
> +
> +       chosen {
> +               stdout-path = "serial0:115200n8";
> +       };
> +
> +       leds {
> +               compatible = "gpio-leds";
> +
> +               pwr {
> +                       label = "nanopi:red:pwr";
> +                       gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
> +                       default-state = "on";
> +               };
> +
> +               status {
> +                       label = "nanopi:green:status";
> +                       gpios = <&pio 0 10 GPIO_ACTIVE_HIGH>; /* PA10 */
> +               };
> +       };
> +
> +       r_gpio_keys {
> +               compatible = "gpio-keys";
> +
> +               k1 {
> +                       label = "k1";
> +                       linux,code = <BTN_0>;
> +                       gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>; /* PL3 */
> +               };
> +       };
> +
> +       reg_vdd_cpux: vdd-cpux-regulator {
> +               compatible = "regulator-gpio";
> +               regulator-name = "vdd-cpux";
> +               regulator-min-microvolt = <1100000>;
> +               regulator-max-microvolt = <1300000>;
> +               regulator-always-on;
> +               regulator-boot-on;
> +               regulator-ramp-delay = <50>; /* 4ms */
> +
> +               enable-active-high;
> +               enable-gpio = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
> +               gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
> +               gpios-states = <0x1>;
> +               states = <1100000 0x0
> +                         1300000 0x1>;
> +       };
> +
> +       reg_vcc_dram: vcc-dram {

This regulator and the next don't have -regulator in their node name,
unlike vdd-cpux-regulator above.

Other than that, this patch looks good to go.

ChenYu

> +               compatible = "regulator-fixed";
> +               regulator-name = "vcc-dram";
> +               regulator-min-microvolt = <1500000>;
> +               regulator-max-microvolt = <1500000>;
> +               regulator-always-on;
> +               regulator-boot-on;
> +               enable-active-high;
> +               gpio = <&r_pio 0 9 GPIO_ACTIVE_HIGH>; /* PL9 */
> +               vin-supply = <&reg_vcc5v0>;
> +        };
> +
> +       reg_vdd_sys: vdd-sys {
> +               compatible = "regulator-fixed";
> +               regulator-name = "vdd-sys";
> +               regulator-min-microvolt = <1200000>;
> +               regulator-max-microvolt = <1200000>;
> +               regulator-always-on;
> +               regulator-boot-on;
> +               enable-active-high;
> +               gpio = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
> +               vin-supply = <&reg_vcc5v0>;
> +        };
> +
> +       wifi_pwrseq: wifi_pwrseq {
> +               compatible = "mmc-pwrseq-simple";
> +               reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 */
> +               clocks = <&rtc 1>;
> +               clock-names = "ext_clock";
> +       };
> +
> +};
> +
> +&cpu0 {
> +       cpu-supply = <&reg_vdd_cpux>;
> +};
> +
> +&ehci0 {
> +       status = "okay";
> +};
> +
> +&mmc0 {
> +       bus-width = <4>;
> +       cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
> +       status = "okay";
> +       vmmc-supply = <&reg_vcc3v3>;
> +};
> +
> +&mmc1 {
> +       vmmc-supply = <&reg_vcc3v3>;
> +       vqmmc-supply = <&reg_vcc3v3>;
> +       mmc-pwrseq = <&wifi_pwrseq>;
> +       bus-width = <4>;
> +       non-removable;
> +       status = "okay";
> +
> +       sdio_wifi: sdio_wifi@1 {
> +               reg = <1>;
> +               compatible = "brcm,bcm4329-fmac";
> +               interrupt-parent = <&pio>;
> +               interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10 / EINT10 */
> +               interrupt-names = "host-wake";
> +       };
> +};
> +
> +&ohci0 {
> +       status = "okay";
> +};
> +
> +&reg_usb0_vbus {
> +       gpio = <&r_pio 0 2 GPIO_ACTIVE_HIGH>; /* PL2 */
> +       status = "okay";
> +};
> +
> +&uart0 {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&uart0_pa_pins>;
> +       status = "okay";
> +};
> +
> +&uart2 {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&uart2_pins>, <&uart2_rts_cts_pins>;
> +       uart-has-rtscts;
> +       status = "okay";
> +
> +       bluetooth {
> +               compatible = "brcm,bcm43438-bt";
> +               clocks = <&rtc 1>;
> +               clock-names = "lpo";
> +               vbat-supply = <&reg_vcc3v3>;
> +               vddio-supply = <&reg_vcc3v3>;
> +               device-wakeup-gpios = <&pio 0 8 GPIO_ACTIVE_HIGH>; /* PA8 */
> +               host-wakeup-gpios = <&pio 0 7 GPIO_ACTIVE_HIGH>; /* PA7 */
> +               shutdown-gpios = <&pio 6 13 GPIO_ACTIVE_HIGH>; /* PG13 */
> +       };
> +};
> +
> +&usb_otg {
> +       status = "okay";
> +       dr_mode = "otg";
> +};
> +
> +&usbphy {
> +       usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
> +       usb0_vbus-supply = <&reg_usb0_vbus>;
> +       status = "okay";
> +};
> --
> 2.20.1
>