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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/include/tps6586x.h | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/include/tps6586x.h')
-rw-r--r-- | roms/u-boot/include/tps6586x.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/roms/u-boot/include/tps6586x.h b/roms/u-boot/include/tps6586x.h new file mode 100644 index 000000000..aa4270c65 --- /dev/null +++ b/roms/u-boot/include/tps6586x.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2010,2011 + * NVIDIA Corporation <www.nvidia.com> + */ + +#ifndef _TPS6586X_H_ +#define _TPS6586X_H_ + +struct udevice; + +enum { + /* SM0-2 PWM/PFM Mode Selection */ + TPS6586X_PWM_SM0 = 1 << 0, + TPS6586X_PWM_SM1 = 1 << 1, + TPS6586X_PWM_SM2 = 1 << 2, +}; + +/** + * Enable PWM mode for selected SM0-2 + * + * @param mask Mask of synchronous converter to enable (TPS6586X_PWM_...) + * @return 0 if ok, -1 on error + */ +int tps6586x_set_pwm_mode(int mask); + +/** + * Adjust SM0 and SM1 voltages to the given targets in incremental steps. + * + * @param sm0_target Target voltage for SM0 in 25mW units, 0=725mV, 31=1.5V + * @param sm1_target Target voltage for SM1 in 25mW units, 0=725mV, 31=1.5V + * @param step Amount to change voltage in each step, in 25mW units + * @param rate Slew ratein mV/us: 0=instantly, 1=0.11, 2=0.22, + * 3=0.44, 4=0.88, 5=1.76, 6=3.52, 7=7.04 + * @param min_sm0_over_sm1 Minimum amount by which sm0 must exceed sm1. + * If this condition is not met, no adjustment will be + * done and an error will be reported. Use -1 to skip + * this check. + * @return 0 if ok, -1 on error + */ +int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate, + int min_sm0_over_sm1); + +/** + * Set up the TPS6586X I2C bus number. This will be used for all operations + * on the device. This function must be called before using other functions. + * + * @param bus I2C bus containing the TPS6586X chip + * @return 0 (always succeeds) + */ +int tps6586x_init(struct udevice *bus); + +#endif /* _TPS6586X_H_ */ |