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V4L/DVB (9328): ivtvfb: FB_BLANK_POWERDOWN turns off video output

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When using FBIOBLANK, FB_BLANK_POWERDOWN will now switch off the video output.
Since some televisions turn themselves off after a while with no signal, this
is the closest we can get to power-saving.

Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Ian Armstrong 2008-10-19 18:58:26 -03:00 committed by Mauro Carvalho Chehab
parent c6330fb86f
commit 4e7ca40dbf
2 changed files with 7 additions and 0 deletions
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1
drivers/media/video/ivtv/ivtv-i2c.c
View file

@ -726,6 +726,7 @@ int ivtv_saa7127(struct ivtv *itv, unsigned int cmd, void *arg)
{
return ivtv_call_i2c_client(itv, IVTV_SAA7127_I2C_ADDR, cmd, arg);
}
EXPORT_SYMBOL(ivtv_saa7127);
int ivtv_saa717x(struct ivtv *itv, unsigned int cmd, void *arg)
{

6
drivers/media/video/ivtv/ivtvfb.c
View file

@ -48,6 +48,7 @@
#endif
#include "ivtv-driver.h"
#include "ivtv-i2c.h"
#include "ivtv-udma.h"
#include "ivtv-mailbox.h"
@ -894,11 +895,16 @@ static int ivtvfb_blank(int blank_mode, struct fb_info *info)
switch (blank_mode) {
case FB_BLANK_UNBLANK:
ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 1);
ivtv_saa7127(itv, VIDIOC_STREAMON, NULL);
break;
case FB_BLANK_NORMAL:
case FB_BLANK_HSYNC_SUSPEND:
case FB_BLANK_VSYNC_SUSPEND:
ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 0);
ivtv_saa7127(itv, VIDIOC_STREAMON, NULL);
break;
case FB_BLANK_POWERDOWN:
ivtv_saa7127(itv, VIDIOC_STREAMOFF, NULL);
ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, 0);
break;
}