yocto 上的 ADV7513 - 内核 4.14

Question

我正在使用 yocto rocko / Linux 4.14.24 开发 IMX6QP，我正在尝试使用 ADV7513。我的 CPU 板是 karo TX6QP.

辛苦了： DISP0_output (IPU1) -> adv7513_in -> hdmi 连接器

内核配置：

CONFIG_DRM = y
CONFIG_DRM_I2C_ADV7511 = m

dtb : 在 I2C 部分：

hdmi@39 {
compatible = "adi,adv7513";
reg = <0x39>;
interrupt-parent = <&gpio4>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
pd-gpio = <&gpio3 18 GPIO_ACTIVE_HIGH>;

adi,input-depth = <8>;
adi,input-colorspace = "rgb";
adi,input-clock = "1x";
adi,input-style = <1>;
adi,input-justification = "evenly";

ports {
#address-cells = <1>;
#size-cells = <0>;

port@0 { /* DISP out */
reg = <0>;
adv7513_in: endpoint {
remote-endpoint = <&ipu1_di0_disp0>;
};
};

port@1 { /* HDMI out */
reg = <1>;
adv7513_out: endpoint {
remote-endpoint = <&hdmi_con>;
};
};
};
};

在主要部分：

hdmi-out0 {

status = "okay";
compatible = "hdmi-connector";
type = "a";

port {
hdmi_con: endpoint {
remote-endpoint = <&adv7513_out>;
};
};
};

ADV7513 未启动，因为它未绑定：从未调用函数 "adv7511_bridge_attach"。

如何将编码器绑定到 DISP 输出？

有什么想法吗？

rBeal

Answer 1

问题出在ipu1和adv7511的绑定上。解决方法：

display: disp0 {
        compatible = "fsl,imx-parallel-display";
        #address-cells = <1>;
        #size-cells = <0>;
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_disp0_2>;
        interface-pix-fmt = "rgb24";

        bits-per-pixel = <32>;
        bus-width = <24>;

        status = "okay";

        port@0 {
                reg = <0>;
                lcd_in: endpoint {
                        remote-endpoint = <&ipu1_di0_disp0>;
                };
        };

        port@1 {
                reg = <1>;
                lcd_out: endpoint {
                        remote-endpoint = <&adv7511_in>;
                };
        };

ipu1绑定adv7511

已解决

yocto 上的 ADV7513 - 内核 4.14

ADV7513 on yocto - kernel 4.14

kernel

yocto

imx6