目录
屏幕供电
背光供电
屏幕供电
mipi的高通供电主要是2.8V和1.8V两个屏幕供电
author | daisy.skye的博客_CSDN博客-嵌入式,Qt,Linux领域博主 https://blog.csdn.net/qq_40715266?type=blog |
供电配置路径 | kernel/msm-3.18/arch/arm/boot/dts/P322/msm8953-mdss-panels.dtsi |
#include "dsi-panel-stxxxx-video.dtsi"&soc {
dsi_panel_pwr_supply: dsi_panel_pwr_supply {#address-cells = <1>;#size-cells = <0>; qcom,panel-supply-entry@0 {
reg = <0>;
qcom,supply-name = "vdd";
qcom,supply-min-voltage = <2850000>;//供电一
qcom,supply-max-voltage = <2850000>;
qcom,supply-enable-load = <100000>;
qcom,supply-disable-load = <100>;}; qcom,panel-supply-entry@1 {
reg = <1>;
qcom,supply-name = "vddio";
qcom,supply-min-voltage = <1800000>;//供电二
qcom,supply-max-voltage = <1800000>;
qcom,supply-enable-load = <100000>;
qcom,supply-disable-load = <100>;};};
};
背光供电
另外还有ledk和leda的背光供电一般情况是3V
高通平台 MSM8953 供电模块charge功能 PMI8952
pmi8952充电以及电量模块查看pmi8950
供电配置路径 | kernel/msm-3.18/arch/arm/boot/dts/P322/msm-pmi8950.dtsi |
参考连接
qcom 8953平台 LCD亮灭屏流程及LCD知识点 | qcom 8953平台 LCD亮灭屏流程及LCD知识点总结【转】 |
高通平台添加屏幕驱动 | 高通平台添加屏幕驱动_rm69380-CSDN博客 |