linux-kernel - Re: [linux-sunxi] [PATCH] ARM: dts: sunxi: enable otg port on the sun7i-a20-olinuxino-lime2

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Date:	Mon, 10 Aug 2015 00:05:05 +0100
From:	Iain Paton <ipaton0@...il.com>
To:	oliver@...inagl.nl
CC:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Olliver Schinagl <oliver+list@...inagl.nl>,
	dev@...ux-sunxi.org, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Olliver Schinagl <o.schinagl@...imaker.com>
Subject: Re: [linux-sunxi] [PATCH] ARM: dts: sunxi: enable otg port on the
 sun7i-a20-olinuxino-lime2

NAK. This does much more than enabling the otg port.

Neither wholesale re-writing the regulator node or hooking up the 
dcdc2 regulator to the operating points definition is required in order 
to enable the otg port.  

At the very least you need to split your patches and describe them 
properly rather than trying to get additional changes that are likely 
to cause further discussion through unnoticed using a misleading 
subject.

Rgds,
Iain
 
On 09/08/15 20:02, Olliver Schinagl wrote:
> From: Olliver Schinagl <o.schinagl@...imaker.com>
> 
> This patch enables the musb-otg USB controller on the Lime2. The Lime2
> differs from the Lime1 series in pins used for usb0 power.
> 
> Tested on a OlinuXino Lime2-4GB.
> 
> Signed-off-by: Olliver Schinagl <oliver@...inagl.nl>
> ---
>  arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts | 131 ++++++++++++++----------
>  1 file changed, 75 insertions(+), 56 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> index 22cd052..efd9ebb 100644
> --- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> @@ -71,14 +71,6 @@
>  			default-state = "on";
>  		};
>  	};
> -
> -	reg_axp_ipsout: axp_ipsout {
> -		compatible = "regulator-fixed";
> -		regulator-name = "axp-ipsout";
> -		regulator-min-microvolt = <5000000>;
> -		regulator-max-microvolt = <5000000>;
> -		regulator-always-on;
> -	};
>  };
>  
>  &ahci {
> @@ -86,6 +78,10 @@
>  	status = "okay";
>  };
>  
> +&cpu0 {
> +	cpu-supply = <&reg_dcdc2>;
> +};
> +
>  &ehci0 {
>  	status = "okay";
>  };
> @@ -112,57 +108,9 @@
>  	status = "okay";
>  
>  	axp209: pmic@34 {
> -		compatible = "x-powers,axp209";
>  		reg = <0x34>;
>  		interrupt-parent = <&nmi_intc>;
>  		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> -
> -		interrupt-controller;
> -		#interrupt-cells = <1>;
> -
> -		acin-supply = <&reg_axp_ipsout>;
> -		vin2-supply = <&reg_axp_ipsout>;
> -		vin3-supply = <&reg_axp_ipsout>;
> -		ldo24in-supply = <&reg_axp_ipsout>;
> -		ldo3in-supply = <&reg_axp_ipsout>;
> -
> -		regulators {
> -			vdd_rtc: ldo1 {
> -				regulator-min-microvolt = <1300000>;
> -				regulator-max-microvolt = <1300000>;
> -				regulator-always-on;
> -			};
> -
> -			avcc: ldo2 {
> -				regulator-min-microvolt = <1800000>;
> -				regulator-max-microvolt = <3300000>;
> -				regulator-always-on;
> -			};
> -
> -			vcc_csi0: ldo3 {
> -				regulator-min-microvolt = <700000>;
> -				regulator-max-microvolt = <3500000>;
> -				regulator-always-on;
> -			};
> -
> -			vcc_csi1: ldo4 {
> -				regulator-min-microvolt = <1250000>;
> -				regulator-max-microvolt = <3300000>;
> -				regulator-always-on;
> -			};
> -
> -			vdd_cpu: dcdc2 {
> -				regulator-min-microvolt = <700000>;
> -				regulator-max-microvolt = <2275000>;
> -				regulator-always-on;
> -			};
> -
> -			vdd_int: dcdc3 {
> -				regulator-min-microvolt = <700000>;
> -				regulator-max-microvolt = <3500000>;
> -				regulator-always-on;
> -			};
> -		};
>  	};
>  };
>  
> @@ -196,6 +144,10 @@
>  	status = "okay";
>  };
>  
> +&otg_sram {
> +	status = "okay";
> +};
> +
>  &pio {
>  	ahci_pwr_pin_olinuxinolime: ahci_pwr_pin@1 {
>  		allwinner,pins = "PC3";
> @@ -210,6 +162,27 @@
>  		allwinner,drive = <SUN4I_PINCTRL_20_MA>;
>  		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>  	};
> +
> +	usb0_id_detect_pin: usb0_id_detect_pin@0 {
> +		allwinner,pins = "PH4";
> +		allwinner,function = "gpio_in";
> +		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> +		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
> +	};
> +
> +	usb0_vbus_detect_pin: usb0_vbus_detect_pin@0 {
> +		allwinner,pins = "PH5";
> +		allwinner,function = "gpio_in";
> +		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> +		allwinner,pull = <SUN4I_PINCTRL_PULL_DOWN>;
> +	};
> +
> +	usb0_vbus_pin_lime2: usb0_vbus_pin@0 {
> +		allwinner,pins = "PC17";
> +		allwinner,function = "gpio_out";
> +		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> +		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
> +	};
>  };
>  
>  &reg_ahci_5v {
> @@ -218,6 +191,42 @@
>  	status = "okay";
>  };
>  
> +#include "axp209.dtsi"
> +
> +&reg_dcdc2 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1000000>;
> +	regulator-max-microvolt = <1450000>;
> +	regulator-name = "vdd-cpu";
> +};
> +
> +&reg_dcdc3 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1000000>;
> +	regulator-max-microvolt = <1400000>;
> +	regulator-name = "vdd-int-dll";
> +};
> +
> +&reg_ldo1 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1300000>;
> +	regulator-max-microvolt = <1300000>;
> +	regulator-name = "vdd-rtc";
> +};
> +
> +&reg_ldo2 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <3000000>;
> +	regulator-max-microvolt = <3000000>;
> +	regulator-name = "avcc";
> +};
> +
> +&reg_usb0_vbus {
> +	pinctrl-0 = <&usb0_vbus_pin_lime2>;
> +	gpio = <&pio 2 17 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +};
> +
>  &reg_usb1_vbus {
>  	status = "okay";
>  };
> @@ -232,7 +241,17 @@
>  	status = "okay";
>  };
>  
> +&usb_otg {
> +	dr_mode = "otg";
> +	status = "okay";
> +};
> +
>  &usbphy {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
> +	usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
> +	usb0_vbus_det-gpio = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
> +	usb0_vbus-supply = <&reg_usb0_vbus>;
>  	usb1_vbus-supply = <&reg_usb1_vbus>;
>  	usb2_vbus-supply = <&reg_usb2_vbus>;
>  	status = "okay";
> 

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