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| author | Svyatoslav Ryhel <clamor95@gmail.com> | 2023-10-27 11:26:12 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-11-03 12:37:15 -0400 |
| commit | 51201e49b05266fce231a0957afa3278a1e49177 (patch) | |
| tree | 265c47256add347c6e7285e194df43e4b9ee9d66 /doc | |
| parent | cc7595a8507ce1e476bfbcca0ce041fc2169667f (diff) | |
| download | u-boot-51201e49b05266fce231a0957afa3278a1e49177.tar.gz u-boot-51201e49b05266fce231a0957afa3278a1e49177.tar.bz2 u-boot-51201e49b05266fce231a0957afa3278a1e49177.zip | |
power: pmic: add the base TPS80031 PMIC support
Add support to bind the regulators/child nodes with the pmic.
Also adds the pmic i2c based read/write functions to access pmic
registers.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/pmic/tps80031.txt | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/pmic/tps80031.txt b/doc/device-tree-bindings/pmic/tps80031.txt new file mode 100644 index 0000000000..577e6de1c1 --- /dev/null +++ b/doc/device-tree-bindings/pmic/tps80031.txt @@ -0,0 +1,76 @@ +Texas Instruments, TPS80031/TPS80032 PMIC + +This device uses two drivers: +- drivers/power/pmic/tps80031.c (for parent device) +- drivers/power/regulator/tps80031_regulator.c (for child regulators) + +This chapter describes the binding info for the PMIC driver and regulators. + +Required properties for PMIC: +- compatible: "ti,tps80031" or "ti,tps80032" +- reg: 0x48 + +With those two properties, the pmic device can be used for read/write only. +To bind each regulator, the optional regulators subnode should exists. + +Optional subnode: +- name: regulators (subnode list of each device's regulator) + +Regulators subnode contains set on supported regulators. + +Required properties: +- regulator-name: used for regulator uclass platform data '.name', + +List of supported regulator nodes names for tps80031/tps80032: +- smps1, smps2, smps3, smps4, smps5 +- ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldoln, ldousb + +SMPS5 in Linux 3.1.10 is referred as vio, but datasheet clearly names it SMPS5. + +Optional: +- regulator-min-microvolt: minimum allowed Voltage to set +- regulator-max-microvolt: minimum allowed Voltage to set +- regulator-always-on: regulator should be never disabled +- regulator-boot-on: regulator should be enabled by the bootloader + +Example: + +tps80032@48 { + compatible = "ti,tps80032"; + reg = <0x48>; + + regulators { + smps1 { + regulator-name = "vdd_cpu"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1250000>; + regulator-always-on; + regulator-boot-on; + }; + + ... + + smps5 { + regulator-name = "vdd_1v8_gen"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + }; + + ldo1 { + regulator-name = "avdd_dsi_csi"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-boot-on; + }; + + ... + + ldousb { + regulator-name = "avdd_usb"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + }; +}; |