X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=drivers%2Fmedia%2Fvideo%2Ftvaudio.c;h=f22dbef9b95b72bfe4bf06f2a6d9aa185573bcf2;hp=c46a3bb95852a7da7ad866387ec1b602c29bc5a6;hb=88af83048d3bdfe3de7aee54e7117afbc2f8dd58;hpb=4c04b7a1ada742aace5023aca57e537bf75b59ff;ds=sidebyside diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c index c46a3bb95852..f22dbef9b95b 100644 --- a/drivers/media/video/tvaudio.c +++ b/drivers/media/video/tvaudio.c @@ -1695,14 +1695,17 @@ static int tvaudio_s_ctrl(struct v4l2_subdev *sd, case V4L2_CID_AUDIO_BALANCE: { int volume, balance; + if (!(desc->flags & CHIP_HAS_VOLUME)) break; - volume = max(chip->left,chip->right); + volume = max(chip->left, chip->right); balance = ctrl->value; + chip->left = (min(65536 - balance, 32768) * volume) / 32768; + chip->right = (min(balance, volume * (__u16)32768)) / 32768; - chip_write(chip,desc->leftreg,desc->volfunc(chip->left)); - chip_write(chip,desc->rightreg,desc->volfunc(chip->right)); + chip_write(chip, desc->leftreg, desc->volfunc(chip->left)); + chip_write(chip, desc->rightreg, desc->volfunc(chip->right)); return 0; }