Hans Verkuil 3aab15af9a media: add tuner standby op, use where needed ... The v4l2_subdev core s_power op was used for two different things: power on/off sensors or video decoders/encoders and to put a tuner in standby (and only the tuner!). There is no 'tuner wakeup' op, that's done automatically when the tuner is accessed. The danger with calling (s_power, 0) to put a tuner into standby is that it is usually broadcast for all subdevs. So a video receiver subdev that supports s_power will also be powered off, and since there is no corresponding (s_power, 1) they will never be powered on again. In addition, this is specifically meant for tuners only since they draw the most current. This patch adds a new tuner op called 'standby' and replaces all calls to (core, s_power, 0) by (tuner, standby). This prevents confusion between the two uses of s_power. Note that there is no overlap: bridge drivers either just want to put the tuner into standby, or they deal with powering on/off sensors. Never both. This also makes it easier to replace s_power for the remaining bridge drivers with some PM code later. Whether we want something cleaner for tuners in the future is a separate topic. There is a lot of legacy code surrounding tuners, and I am very hesitant about making changes there. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>		2018-03-21 12:05:39 -04:00
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Kconfig	media: videobuf2: Add VIDEOBUF2_V4L2 Kconfig option for VB2 V4L2 part	2018-02-23 05:12:55 -05:00
Makefile	media: videobuf2: fix build issues with vb2-trace	2018-02-23 05:13:53 -05:00
tuner-core.c	media: add tuner standby op, use where needed	2018-03-21 12:05:39 -04:00
v4l2-async.c
v4l2-clk.c
v4l2-common.c	media: v4l: common: Remove v4l2_find_nearest_format	2018-03-21 11:21:33 -04:00
v4l2-compat-ioctl32.c
v4l2-ctrls.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
v4l2-dev.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
v4l2-device.c
v4l2-dv-timings.c	media: v4l2-dv-timings: add v4l2_hdmi_colorimetry()	2018-02-22 12:41:09 -05:00
v4l2-event.c
v4l2-fh.c
v4l2-flash-led-class.c
v4l2-fwnode.c
v4l2-ioctl.c	media: v4l-ioctl: fix clearing pad for VIDIOC_DV_TIMINGS_CAP	2018-02-22 12:41:39 -05:00
v4l2-mc.c	media: v4l2-core: v4l2-mc: Add SPDX license identifier	2018-02-26 07:42:03 -05:00
v4l2-mem2mem.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
v4l2-subdev.c	media: v4l2-subdev: implement VIDIOC_DBG_G_CHIP_INFO ioctl	2018-02-26 09:33:39 -05:00
v4l2-trace.c
videobuf-core.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
videobuf-dma-contig.c
videobuf-dma-sg.c
videobuf-dvb.c
videobuf-vmalloc.c