Panrq 发布的帖子

环境：

• 源码包t113-tina5-v1.2
• 补丁100ASK_T113s4-SdNand_TinaSDK5

sun8iw20p1.dtsi配置

twi2: twi@2502800{
	#address-cells = <1>;
	#size-cells = <0>;
	compatible = "allwinner,sun8i-twi";
	device_type = "twi2";
	reg = <0x0 0x02502800 0x0 0x400>;
	interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
	clocks = <&ccu CLK_BUS_I2C2>;
	resets = <&ccu RST_BUS_I2C2>;
	clock-names = "bus";
	clock-frequency = <400000>;
	status = "okay";
		};

board.dts配置

twi2_pins_a: twi2@0 {
	  pins = "PE12", "PE13";
	  function = "twi2";
	  drive-strength = <10>;
	  bias-pull-up;
	};
twi2_pins_b: twi2@1 {
	  pins = "PE12", "PE13";
	  function = "gpio_in";
	};
&twi2 {
	clock-frequency = <400000>;
	pinctrl-0 = <&twi2_pins_a>;
	pinctrl-1 = <&twi2_pins_b>;
	pinctrl-names = "default", "sleep";
	twi_drv_used = <1>;
	dmas = <&dma 45>, <&dma 45>;
	dma-names = "tx", "rx";
	status = "okay";
};

sys_config.fex配置

[twi_para]
twi_used = 1
twi_port = 2
twi_scl  = port:PE12<2><1><default><default>
twi_sda  = port:PE13<2><1><default><default>

编译后运行发现引脚功能复用没成功，twi2设备开机状态默认sleep。
pinctrl-handles文件

PE12和PE13引脚功能为0。

在sunxi_pin中更改功能号之后，i2c功能正常能使用。
求问怎么让twi2设备开机状态为default？以及这个引脚功能复用是不是没成功？