diff options
| author | Fenglin Wu <quic_fenglinw@quicinc.com> | 2024-04-15 16:03:40 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-16 13:23:34 +0200 |
| commit | fd4bb5284d34687c82356f07efe957af89ee51fe (patch) | |
| tree | 19b30c2b0ac86a0aec18fa1a497e74bb21d4c83b | |
| parent | 502f295dcccf0ee7c4bddcf1ff2876987aaf89ca (diff) | |
Input: pm8xxx-vibrator - correct VIB_MAX_LEVELS calculation
[ Upstream commit 48c0687a322d54ac7e7a685c0b6db78d78f593af ]
The output voltage is inclusive hence the max level calculation is
off-by-one-step. Correct it.
iWhile we are at it also add a define for the step size instead of
using the magic value.
Fixes: 11205bb63e5c ("Input: add support for pm8xxx based vibrator driver")
Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240412-pm8xxx-vibrator-new-design-v10-1-0ec0ad133866@quicinc.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/input/misc/pm8xxx-vibrator.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/input/misc/pm8xxx-vibrator.c b/drivers/input/misc/pm8xxx-vibrator.c index 27b3db154a33..97bf7d94e8c6 100644 --- a/drivers/input/misc/pm8xxx-vibrator.c +++ b/drivers/input/misc/pm8xxx-vibrator.c @@ -22,7 +22,8 @@ #define VIB_MAX_LEVEL_mV (3100) #define VIB_MIN_LEVEL_mV (1200) -#define VIB_MAX_LEVELS (VIB_MAX_LEVEL_mV - VIB_MIN_LEVEL_mV) +#define VIB_PER_STEP_mV (100) +#define VIB_MAX_LEVELS (VIB_MAX_LEVEL_mV - VIB_MIN_LEVEL_mV + VIB_PER_STEP_mV) #define MAX_FF_SPEED 0xff @@ -126,10 +127,10 @@ static void pm8xxx_work_handler(struct work_struct *work) vib->active = true; vib->level = ((VIB_MAX_LEVELS * vib->speed) / MAX_FF_SPEED) + VIB_MIN_LEVEL_mV; - vib->level /= 100; + vib->level /= VIB_PER_STEP_mV; } else { vib->active = false; - vib->level = VIB_MIN_LEVEL_mV / 100; + vib->level = VIB_MIN_LEVEL_mV / VIB_PER_STEP_mV; } pm8xxx_vib_set(vib, vib->active); |