From 288cb5d1dbbec52a5a9ca1814fd05102dcfa87be Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Thu, 13 Sep 2018 22:29:17 +0200 Subject: [PATCH] ARM: dts: meson8b: odroidc1: add the fixed voltage regulators There are multiple fixed regulators on the Odroid-C1 board. Add them so they can be used when we add the devices that need them (SAR ADC needs the 1.8V IOREF, RTC needs VDD_RTC). These are: - P5V0 is the main 5V power input - VCC3V3 / VDDIO_AO3V3 / VDD3V3: fixed regulator with 3.3V output which is supplied by P5V0 - IOREF_1V8 / VCC1V8 / VDD1V8: fixed regulator with 1.8V output which is supplied by P5V0 - VDD_RTC: fixed voltage regulator with 0.9V output which is supplied by VDDIO_AO3V3 - DDR_VDDC / DDR3_1V5: fixed voltage regulator with 1.5V output which is supplied by P5V0 - the existing TF_IO and RFLASH_VDD_EN regulators are supplied by VDDIO_AO3V3 - the existing VCCK regulator is supplied by P5V0 This does not add the missing VDDEE regulator (controlled by PWM_D) because it's not clear yet how to configure the voltage of that regulator. Signed-off-by: Martin Blumenstingl Signed-off-by: Kevin Hilman --- arch/arm/boot/dts/meson8b-odroidc1.dts | 73 ++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts index 0557823cdd64..a08dccccdb5e 100644 --- a/arch/arm/boot/dts/meson8b-odroidc1.dts +++ b/arch/arm/boot/dts/meson8b-odroidc1.dts @@ -71,6 +71,14 @@ }; }; + p5v0: regulator-p5v0 { + compatible = "regulator-fixed"; + + regulator-name = "P5V0"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + }; + tflash_vdd: regulator-tflash_vdd { /* * signal name from schematics: TFLASH_VDD_EN @@ -81,6 +89,8 @@ regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + vin-supply = <&vcc_3v3>; + gpio = <&gpio GPIOY_12 GPIO_ACTIVE_HIGH>; enable-active-high; }; @@ -92,6 +102,8 @@ regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; + vin-supply = <&vcc_3v3>; + /* * signal name from schematics: TF_3V3N_1V8_EN */ @@ -102,6 +114,36 @@ 1800000 1>; }; + vcc_1v8: regulator-vcc-1v8 { + /* + * RICHTEK RT9179 configured for a fixed output voltage of + * 1.8V. This supplies not only VCC1V8 but also IOREF_1V8 and + * VDD1V8 according to the schematics. + */ + compatible = "regulator-fixed"; + + regulator-name = "VCC1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + + vin-supply = <&p5v0>; + }; + + vcc_3v3: regulator-vcc-3v3 { + /* + * Monolithic Power Systems MP2161 configured for a fixed + * output voltage of 3.3V. This supplies not only VCC3V3 but + * also VDD3V3 and VDDIO_AO3V3 according to the schematics. + */ + compatible = "regulator-fixed"; + + regulator-name = "VCC3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + vin-supply = <&p5v0>; + }; + vcck: regulator-vcck { /* Monolithic Power Systems MP2161 */ compatible = "pwm-regulator"; @@ -110,12 +152,43 @@ regulator-min-microvolt = <860000>; regulator-max-microvolt = <1140000>; + vin-supply = <&p5v0>; + pwms = <&pwm_cd 0 12218 0>; pwm-dutycycle-range = <91 0>; regulator-boot-on; regulator-always-on; }; + + vddc_ddr: regulator-vddc-ddr { + /* + * Monolithic Power Systems MP2161 configured for a fixed + * output voltage of 1.5V. This supplies not only DDR_VDDC but + * also DDR3_1V5 according to the schematics. + */ + compatible = "regulator-fixed"; + + regulator-name = "DDR_VDDC"; + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1500000>; + + vin-supply = <&p5v0>; + }; + + vdd_rtc: regulator-vdd-rtc { + /* + * Torex Semiconductor XC6215 configured for a fixed output of + * 0.9V. + */ + compatible = "regulator-fixed"; + + regulator-name = "VDD_RTC"; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <900000>; + + vin-supply = <&vcc_3v3>; + }; }; &cpu0 {