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| author | Guodong Xu <guodong@riscstar.com> | 2026-01-22 17:43:42 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-02-11 13:42:00 +0100 |
| commit | b767cf2d4efc814d639e31f2413082b345fe3841 (patch) | |
| tree | e445d7694b5915d0d8243403a010de8491d9b879 /tools/perf/scripts/python | |
| parent | 3f9b508b3eecc00a243edf320bd83834d6a9b482 (diff) | |
regulator: spacemit-p1: Fix n_voltages for BUCK and LDO regulators
[ Upstream commit 41399c5d476156635c9a58de870d39318e22fa09 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions