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[media] tm6000: Disable video interface in radio mode 

Video data is useless in radio mode, so the corresponding interface can
be safely disabled. This should reduce the amount of isochronous traffic
noticeably.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Thierry Reding 2011-08-04 04:14:08 -03:00 committed by Mauro Carvalho Chehab
parent 4129e560fb
commit 873545820a
1 changed files with 6 additions and 1 deletions
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7
drivers/staging/tm6000/tm6000-core.c
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@ -267,9 +267,14 @@ int tm6000_init_analog_mode(struct tm6000_core *dev)
struct v4l2_frequency f;
if (dev->dev_type == TM6010) {
u8 active = TM6010_REQ07_RCC_ACTIVE_IF_AUDIO_ENABLE;
if (!dev->radio)
active |= TM6010_REQ07_RCC_ACTIVE_IF_VIDEO_ENABLE;
/* Enable video and audio */
tm6000_set_reg_mask(dev, TM6010_REQ07_RCC_ACTIVE_IF,
0x60, 0x60);
active, 0x60);
/* Disable TS input */
tm6000_set_reg_mask(dev, TM6010_REQ07_RC0_ACTIVE_VIDEO_SOURCE,
0x00, 0x40);