[PATCH 4.2.y-ckt 006/268] [media] media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode

From: Kamal Mostafa
Date: Wed Jan 27 2016 - 17:00:28 EST

4.2.8-ckt3 -stable review patch. If anyone has any objections, please let me know.


From: Malcolm Priestley <tvboxspy@xxxxxxxxx>

commit c9d57de6103e343f2d4e04ea8d9e417e10a24da7 upstream.

When in FE_TUNE_MODE_ONESHOT the frontend must report
the actual capabilities so user can take appropriate

With frontends that can't do auto inversion this is done
by dvb-core automatically so CAN_INVERSION_AUTO is valid.

However, when in FE_TUNE_MODE_ONESHOT this is not true.

So only set FE_CAN_INVERSION_AUTO in modes other than

Signed-off-by: Malcolm Priestley <tvboxspy@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
drivers/media/dvb-core/dvb_frontend.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 842b9c8..565b615 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -2314,9 +2314,9 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n",
__func__, c->delivery_system, fe->ops.info.type);

- /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't
- * do it, it is done for it. */
- info->caps |= FE_CAN_INVERSION_AUTO;
+ /* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */
+ if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT))
+ info->caps |= FE_CAN_INVERSION_AUTO;
err = 0;