From: Peter Ujfalusi Date: Wed, 12 Oct 2011 08:57:56 +0000 (+0300) Subject: Input: twl6040-vibra: Check the selected path for vibra X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5f07c32e289d159be3fc1e4f257e8cad5336f83a;p=linux-beck.git Input: twl6040-vibra: Check the selected path for vibra 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 Acked-by: Dmitry Torokhov Signed-off-by: Mark Brown --- diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c index cb741858229a..2a828e53db58 100644 --- a/drivers/input/misc/twl6040-vibra.c +++ b/drivers/input/misc/twl6040-vibra.c @@ -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;