Add PCA9452 PMIC/Regulator support.

Signed-off-by: Joy Zou <joy.zou@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>

The MP5416 PMIC's LDO set-value formula is incorrect. This patch fixes
it by using the correct formula.

Signed-off-by: Sidharth Prabukumar <sidharth.prabukumar@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

Both regulators_enable_boot_on/off() are unused and superseded by
regulator uclass regulator_post_probe(). Remove both functions.

Signed-off-by: Marek Vasut <marex@denx.de>

This function is never called, drop it.

Signed-off-by: Marek Vasut <marex@denx.de>

1. Use runtime voltage selection for LD/OD/ND mode.
2. According to latest PE/TE report, the voltages of VDD_SOC for
   LD and ND mode need add 50mv margin, so LD voltage is 0.75v->0.8v,
   ND voltage is 0.8v->0.85v.
3. Use TOFF_DEB to differentiate new trimmed pmic and old pmic

Signed-off-by: Peng Fan <peng.fan@nxp.com>

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

Re-use the TPS65941 PMIC driver for TPS65224 PMIC.
Add additional macros of TPS65224 to aid in the driver
re-use.

Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

This adds support for RK806, only the SPI variant has been tested.

The communication "protocol" over SPI is the following:
 - write three bytes:
   - 1 byte: [0:3] length of the payload, [6] Enable CRC, [7] Write
   - 1 byte: LSB register address
   - 1 byte: MSB register address
 - write/read length of payload

The CRC is always disabled for now.

The RK806 technically supports I2C as well, and this should be able to
support it without any change, but it wasn't tested.

The DT node name prefix for the buck converters has changed in the
Device Tree and is now dcdc-reg. The logic for buck converters is
however manageable within the current logic inside the rk8xx regulator
driver. The same cannot be said for the NLDO and PLDO.

Because pmic_bind_children() parses the DT nodes and extracts the LDO
index from the DT node name, NLDO and PLDO will have overlapping
indices. Therefore, we need a separate logic from the already-existing
ldo callbacks. Let's reuse as much as possible though.

Cc: Quentin Schulz <foss+uboot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>

Those two functions had their last user removed in commit f9c68a566c4d
("rockchip: phycore_rk3288: remove phycore_init() function") part of
v2023.01 release, so let's do some cleanup here.

Cc: Quentin Schulz <foss+uboot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>

These headers follow the pattern:

| #if CONFIG_IS_ENABLED(FANCY_FEATURE)
|   void foo(void);
| #else
|   static inline void foo(void) { return -ENOSYS; }
| #endif

In the #else path ENOSYS is used, however linux/errno.h is not included.
If errno.h has not been included already the compiler errors out even
if the inline function is not referenced.

Make those headers self contained.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Tom Rini <trini@konsulko.com>