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| author | Guodong Xu <guodong@riscstar.com> | 2026-01-22 17:43:42 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-01-26 11:26:41 +0000 |
| commit | 41399c5d476156635c9a58de870d39318e22fa09 (patch) | |
| tree | 17fc2b07d16015d93346405a86b1df38f29e7cb2 /include/uapi | |
| parent | 63804fed149a6750ffd28610c5c1c98cce6bd377 (diff) | |
regulator: spacemit-p1: Fix n_voltages for BUCK and LDO regulators
Higher voltage settings were unusable due to incorrect n_voltages values
causing registration failures. For example, setting aldo4 to 3.3V failed
with -EINVAL because the required selector (123) exceeded the allowed
range (n_voltages=117).
Fix by aligning n_voltages with the hardware register widths per the P1
datasheet [1]:
- BUCK: 255 (was 254), allows selectors 0-254, selector 255 is reserved
- LDO: 128 (was 117), allows selectors 0-127, selectors 0-10 are for
suspend mode, valid operational range is 11-127
This enables the full voltage range supported by the hardware.
Fixes: 8b84d712ad84 ("regulator: spacemit: support SpacemiT P1 regulators")
Link: https://developer.spacemit.com/documentation [1]
Signed-off-by: Guodong Xu <guodong@riscstar.com>
Link: https://patch.msgid.link/20260122-spacemit-p1-v1-1-309be27fbff9@riscstar.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/uapi')
0 files changed, 0 insertions, 0 deletions