本帖最后由 gkeith 于 2017-12-25 15:30 编辑
又打扰大家了….
在mipi调屏中发现输出reset和enable二讯号皆无电压（正常应为High）
确认kernel/arch/arm64/boot/dts/rockchip/rk3399-firefly-edp.dts文件中设定如下，
有需要修正的地方？又或者还有其它文件需要变更？
power_ctr: power_ctr {
rockchip,debug = <0>;
lcd_en: lcd-en {
gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
pinctrl-names ="default";
pinctrl-0 = <&lcd_panel_enable>;
rockchip,delay =<10>;
};
lcd_rst: lcd-rst {
gpios = <&gpio4 29 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&lcd_panel_reset>;
rockchip,delay =<6>;
};
};
===================================================
&pinctrl {
lcd-panel {
lcd_panel_reset:lcd-panel-reset {
rockchip,pins = <4 29 RK_FUNC_GPIO &pcfg_pull_up>;
};
lcd_panel_enable:lcd-panel-enable {
rockchip,pins = <1 1 RK_FUNC_GPIO &pcfg_pull_up>;
};
};
};