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Input: twl6040-vibra: Check the selected path for vibra

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The VIBSELL/R bit in the VIBCTLL/R register tells the source of the data,
which is going to be used to drive the attached motor(s).
Do not allow effect execution if any of the channels are set to receive
audio data.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Peter Ujfalusi 2011-10-12 11:57:56 +03:00 committed by Mark Brown
parent 70601ec10a
commit 5f07c32e28
1 changed files with 7 additions and 0 deletions
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7
drivers/input/misc/twl6040-vibra.c
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@ -201,6 +201,13 @@ static int vibra_play(struct input_dev *input, void *data,
struct vibra_info *info = input_get_drvdata(input);
int ret;
/* Do not allow effect, while the routing is set to use audio */
ret = twl6040_get_vibralr_status(info->twl6040);
if (ret & TWL6040_VIBSEL) {
dev_info(&input->dev, "Vibra is configured for audio\n");
return -EBUSY;
}
info->weak_speed = effect->u.rumble.weak_magnitude;
info->strong_speed = effect->u.rumble.strong_magnitude;
info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1;