diff options
| author | Martin Bugge <marbugge@cisco.com> | 2013-12-10 11:14:26 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-01-07 06:22:12 -0200 |
| commit | c9f1f271d4b6455d5ecf43e393668a7c8f4cb833 (patch) | |
| tree | c570f31c2d5bee1db8d8525752f3c4dad2e1cb49 /drivers/media/i2c | |
| parent | 6251e65f1ba6c1f4e461a1d97735812165c4499d (diff) | |
| download | linux-c9f1f271d4b6455d5ecf43e393668a7c8f4cb833.tar.bz2 | |
[media] adv7842: properly enable/disable the irqs
The method of disabling the irq-output pin caused many "empty"
interrupts. Instead, actually disable/enable the interrupts by
changing the interrupt masks.
Also enable STORE_MASKED_IRQ in INT1 configuration, otherwise when HDMI
events happen while the interrupt is masked those events will be ignored
when the interrupt is unmasked.
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/i2c')
| -rw-r--r-- | drivers/media/i2c/adv7842.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c index 6434a93e1416..cbbfa774079d 100644 --- a/drivers/media/i2c/adv7842.c +++ b/drivers/media/i2c/adv7842.c @@ -1786,10 +1786,8 @@ static int adv7842_isr(struct v4l2_subdev *sd, u32 status, bool *handled) struct adv7842_state *state = to_state(sd); u8 fmt_change_cp, fmt_change_digital, fmt_change_sdp; u8 irq_status[5]; - u8 irq_cfg = io_read(sd, 0x40); - /* disable irq-pin output */ - io_write(sd, 0x40, irq_cfg | 0x3); + adv7842_irq_enable(sd, false); /* read status */ irq_status[0] = io_read(sd, 0x43); @@ -1810,6 +1808,8 @@ static int adv7842_isr(struct v4l2_subdev *sd, u32 status, bool *handled) if (irq_status[4]) io_write(sd, 0x9e, irq_status[4]); + adv7842_irq_enable(sd, true); + v4l2_dbg(1, debug, sd, "%s: irq %x, %x, %x, %x, %x\n", __func__, irq_status[0], irq_status[1], irq_status[2], irq_status[3], irq_status[4]); @@ -1845,9 +1845,6 @@ static int adv7842_isr(struct v4l2_subdev *sd, u32 status, bool *handled) if (handled) *handled = true; - /* re-enable irq-pin output */ - io_write(sd, 0x40, irq_cfg); - return 0; } @@ -2446,7 +2443,7 @@ static int adv7842_core_init(struct v4l2_subdev *sd, io_write(sd, 0x33, 0x40); /* interrupts */ - io_write(sd, 0x40, 0xe2); /* Configure INT1 */ + io_write(sd, 0x40, 0xf2); /* Configure INT1 */ adv7842_irq_enable(sd, true); |