Messages in this thread Patch in this message | | | Subject | [PATCH RFC 1/2] regulator: core: Allow uV_step to be 0 for linear mapping if fixed voltage | From | Axel Lin <> | Date | Thu, 07 Jun 2012 10:05:14 +0800 |
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Fixed voltage is a kind of linear mapping where n_voltages is 1 and uV_step is 0. This change allows [list|map]_voltage_linear to be used for fixed voltage.
Signed-off-by: Axel Lin <axel.lin@gmail.com> --- drivers/regulator/core.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 02c1940..876f5fc 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2070,6 +2070,14 @@ int regulator_map_voltage_linear(struct regulator_dev *rdev, { int ret, voltage; + /* Allow uV_step to be 0 for fixed voltage */ + if (rdev->desc->n_voltages == 1 && rdev->desc->uV_step == 0) { + if (min_uV <= rdev->desc->min_uV && rdev->desc->min_uV <= max_uV) + return 0; + else + return -EINVAL; + } + if (!rdev->desc->uV_step) { BUG_ON(!rdev->desc->uV_step); return -EINVAL; -- 1.7.9.5
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