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dm8127 gpio 控制



我想控制 gpio2_25 gpio2_27 (dm8127)

我按照文档(ti81**_psp_user_guide)在 arch/arm/mach-omap2/devices.c
omap2_init_devices()
{
...
omap_mux_init_signal("vout0_g_y_yc3.gpio2_25",
TI814X_PULL_UP | TI814X_INPUT_EN);

omap_mux_init_signal("vout0_r_cr3.gpio2_27", TI814X_PULL_UP);

}

但是没有效果

我在u-boot下是可以控制的

我想请问一下在 我还需要在什么地方添加或是修改什么吗?