mango开发板，跑mango官网首页固件能正常显示，但这个固件没有cma，因此打算自己从全志官网的SDK编译，但irq一直无中断，请问这是什么情况：
root@TinaLinux:/# cat /sys/class/disp/disp/attr/sys
screen 0:
de_rate 300000000 hz, ref_fps:60
mgr0: 800x480 fmt[rgb] cs[0x204] range[full] eotf[0x4] bits[8bits] err[0] force_sync[0] unblank direct_show[false] iommu[0]
dmabuf: cache[0] cache max[0] umap skip[0] umap skip max[0]
lcd output backlight( 50) fps:25.5 800x 480
err:0 skip:0 irq:0 vsync:0 vsync_skip:0
BUF enable ch[1] lyr[0] z[16] prem[N] a[pixel 255] fmt[ 0] fb[ 800, 480; 800, 480; 800, 480] crop[ 0, 0, 800, 480] frame[ 0, 0, 800,1280] addr[ffc00000, 0, 0] flags[0x 0] trd[0,0]
depth[ 0] root@TinaLinux:/#
这是lcd0的配置：
&lcd0 {
compatible = "allwinner,sunxi-lcd0";
status = "okay";
lcd_used = <1>;
lcd_driver_name = "default_lcd";
lcd_backlight = <50>;
lcd_if = <0>;
lcd_x = <800>;
lcd_y = <480>;
lcd_width = <150>;
lcd_height = <94>;
lcd_dclk_freq = <48>;
lcd_pwm_used = <0>;
lcd_pwm_ch = <7>;
lcd_pwm_freq = <500>;
lcd_pwm_pol = <0>;
lcd_bl_en = <&pio PD 22 1 0 3 1>; /* 设为纯 GPIO 输出高电平 */
lcd_hbp = <55>;
lcd_ht = <1240>;
lcd_hspw = <20>;
lcd_vbp = <35>;
lcd_vt = <650>;
lcd_vspw = <10>;
lcd_lvds_if = <0>;
lcd_lvds_colordepth = <1>;
lcd_lvds_mode = <0>;
lcd_frm = <0>;
lcd_io_phase = <0>;
lcd_gamma_en = <0>;
lcd_bright_curve_en = <0>;
lcd_cmap_en = <0>;
deu_mode = <0>;
lcdgamma4iep = <22>;
smart_color = <90>;
pinctrl-0 = <&rgb18_pins_a>;
pinctrl-1 = <&rgb18_pins_b>;
};