diff options
| author | Hans Verkuil <hansverk@cisco.com> | 2016-02-10 08:09:10 -0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-09 15:34:53 -0800 |
| commit | f7591f1a02b5b896ba2da9855a9af24634cae2b9 (patch) | |
| tree | c6f3dde56d2c5460b308e2acb2c82694d272b836 /drivers | |
| parent | 7abfb63f28e1fc56f39f0ef981035b6c9dbd9278 (diff) | |
adv7604: fix tx 5v detect regression
commit 0ba4581c84cfb39fd527f6b3457f1c97f6356c04 upstream.
The 5 volt detect functionality broke in 3.14: the code reads IO register 0x70
again after it has already been cleared. Instead it should use the cached
irq_reg_0x70 value and the io_write to 0x71 to clear 0x70 can be dropped since
this has already been done.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/i2c/adv7604.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index 5631ec004eed..01adcdc52346 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -1960,10 +1960,9 @@ static int adv76xx_isr(struct v4l2_subdev *sd, u32 status, bool *handled) } /* tx 5v detect */ - tx_5v = io_read(sd, 0x70) & info->cable_det_mask; + tx_5v = irq_reg_0x70 & info->cable_det_mask; if (tx_5v) { v4l2_dbg(1, debug, sd, "%s: tx_5v: 0x%x\n", __func__, tx_5v); - io_write(sd, 0x71, tx_5v); adv76xx_s_detect_tx_5v_ctrl(sd); if (handled) *handled = true; |