diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-01-08 23:38:23 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-01-08 23:38:23 -0800 |
| commit | da733563be5a9da26fe81d9f007262d00b846e22 (patch) | |
| tree | db28291df94a2043af2123911984c5c173da4e6f /drivers/media/video/tvaudio.c | |
| parent | 6ccbcf2cb41131f8d56ef0723bf3f7c1f8486076 (diff) | |
| parent | dab78d7924598ea4031663dd10db814e2e324928 (diff) | |
Merge branch 'next' into for-linus
Diffstat (limited to 'drivers/media/video/tvaudio.c')
| -rw-r--r-- | drivers/media/video/tvaudio.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c index c46a3bb9585..f22dbef9b95 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; } |