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| author | Svyatoslav Ryhel <clamor95@gmail.com> | 2023-10-27 11:26:10 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-11-03 12:37:15 -0400 |
| commit | f2ed5849947f1e0dc1578a68b43af7ff928565be (patch) | |
| tree | 1d02ad07d91c766a974479de23961578327d4058 /doc/device-tree-bindings | |
| parent | 9b1d277471af2efc7974a6aede5b73f28b1d6287 (diff) | |
| download | u-boot-f2ed5849947f1e0dc1578a68b43af7ff928565be.zip u-boot-f2ed5849947f1e0dc1578a68b43af7ff928565be.tar.gz u-boot-f2ed5849947f1e0dc1578a68b43af7ff928565be.tar.bz2 | |
power: pmic: add the base MAX77663 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>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Diffstat (limited to 'doc/device-tree-bindings')
| -rw-r--r-- | doc/device-tree-bindings/pmic/max77663.txt | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/pmic/max77663.txt b/doc/device-tree-bindings/pmic/max77663.txt new file mode 100644 index 0000000..ddb7d3e --- /dev/null +++ b/doc/device-tree-bindings/pmic/max77663.txt @@ -0,0 +1,84 @@ +MAXIM, MAX77663 PMIC + +This device uses two drivers: +- drivers/power/pmic/max77663.c (for parent device) +- drivers/power/regulator/max77663_regulator.c (for child regulators) + +This chapter describes the binding info for the PMIC driver and regulators. + +Required properties for PMIC: +- compatible: "maxim,max77663" +- reg: usually 0x1c or 0x3c + +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 max77663: +- sd0, sd1, sd2, sd3, ldo0, ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldo8 + +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 + +Linux driver binding for this driver is compatible. + +Example: + +max77663@1c { + compatible = "maxim,max77663"; + reg = <0x1c>; + + regulators { + sd0 { + regulator-name = "vdd_cpu"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1250000>; + regulator-always-on; + regulator-boot-on; + }; + + ... + + ldo0 { + regulator-name = "avdd_pll"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + }; + + ... + + ldo2 { + regulator-name = "avdd_usb"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + }; + + ldo3 { + regulator-name = "vdd_sdmmc3"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-always-on; + regulator-boot-on; + }; + + ... + + ldo8 { + regulator-name = "avdd_dsi_csi"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + }; + }; +}; |