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    axp2101每个输出管脚的电压在哪里设置

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    • jinxiangwzh
      jinxiangwzh LV 7 最后由 编辑

      芯片V536H,系统TinaLinux4.9
      在sys_config.fex只看到了这个

      ;compatible                   ---regulator0 name, support:axp233-regulator
      ;regulator_count              ---pmu ldo count, changed with different pmu
      ;regulator(1~regulator_count) ---ldo details
      ;--------------------------------------------------------------------------------------------------------
      [regulator0]
      compatible      = "axp2101-regulator"
      regulator_count = 15
      regulator1  = "axp2101_dcdc1 none vcc-3v3 vcc-io vcc33-usb vcc33-wifi vcc33-pc vcc-pd vcc-pa vcc-nand vcc-ephy vcc-card vcc33-pf vcc-pe"
      regulator2  = "axp2101_dcdc2 none vdd-cpua vdd-test"
      regulator3  = "axp2101_dcdc3 none vdd-sys vdd09-usb vdd09-hdmi"
      regulator4  = "axp2101_dcdc4 none vcc-dram"
      regulator5  = "axp2101_rtc none vcc-rtc"
      regulator6  = "axp2101_rtc1 none"
      regulator7  = "axp2101_aldo1 none vdd18-lpddr vdd18-dram vcc-pll avcc"
      regulator8  = "axp2101_aldo2 none vcc-pi vcc-pj iovdd-csi afvcc-csi"
      regulator9  = "axp2101_aldo3 none vcc-pl vcc-ctp"
      regulator10 = "axp2101_aldo4 none vcc-pf vcc33-AHD"
      regulator11 = "axp2101_bldo1 none vcc18-pc vcc-lvds vcc18-lcd vcc18-dsi vcc-tv vcc18-hdmi vcc18-cmbcsi0 vcc18-cmbcsi1 vcc-efuse vcc18-pf  vcc18-wifi vcc-dcxo-io vcc-pg"
      regulator12 = "axp2101_bldo2 none avdd-csi"
      regulator13 = "axp2101_cpuldos none vdd-cpus"
      regulator14 = "axp2101_dldo1 none vcc-lcd"
      regulator15 = "axp2101_dldo2 none dvdd-csi"
      

      在设备树中找到了

      pmu0: pmu@0{
      			interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
      			status = "okay";
      			wakeup-source;
      
      			powerkey0: powerkey@0{
      				status = "okay";
      			};
      
      			regulator0: regulator@0{
      				status = "okay";
      
      				regulator2 {
      					regulator-name = "vdd-cpua";
      				};
      
      				regulator3 {
      					regulator-name = "vdd-sys";
      				};
      
      				regulator7 {
      					regulator-name = "vcc-pll";
      				};
      
      			};
      
      			axp_gpio0: axp_gpio@0{
      				gpio-controller;
      				#size-cells = <0>;
      				#gpio-cells = <6>;
      				status = "okay";
      			};
      
      			charger0: charger@0{
      				status = "okay";
      				/* input current limit reg:0x16 */
      				iin_limit = <1500>;
      				/* const current charge current limit reg:0x62
      				 */
      				icc_cfg = <300>;
      				/* axp2101 parameter */
      				param = <&axp2101_parameter>;
      			};
      		};
      

      但是没看到设置管脚电压的位置,我现在需要把LX4的输出电压改为1.35V

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