power: regulator: Add helper to set voltage within an acceptable range

Add regulator_set_value_clamp() that clamps a requested target voltage
to both caller-provided limits and the regulator constraints before
setting the regulator voltage value.

Return -EINVAL when the caller limits cannot be satisfied by the
regulator constraints or when the requested range is invalid.

This helper will initially be used to set vqmmc-supply voltage within an
acceptable range according to SD Standards, i.e. 1.70V-1.95V and
2.7V-3.6V.

Signed-off-by: Jonas Karlman <[email protected]>
Signed-off-by: Peng Fan <[email protected]>

0 files changed, 0 insertions, 0 deletions