Skip to content

K
Kernel

openeuler / Kernel
1 年多 前同步成功

通知 8
Star 0
Fork 0
K
Kernel
切换分支/标签
  1. 14 4月, 2020 20 次提交
  3. 24 2月, 2020 1 次提交
  5. 19 8月, 2019 1 次提交
  7. 25 7月, 2019 1 次提交
  9. 29 5月, 2019 1 次提交
  11. 24 5月, 2019 1 次提交
    • B
      media: remove redundant 'default n' from Kconfig-s · 2f39cce9
      由 Bartlomiej Zolnierkiewicz 提交于 
      'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.

Also since commit f467c564 ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:

    ...
    One side effect of (and the main motivation for) this change is making
    the following two definitions behave exactly the same:

        config FOO
                bool

        config FOO
                bool
                default n

    With this change, neither of these will generate a
    '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
    That might make it clearer to people that a bare 'default n' is
    redundant.
    ...
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>
      2f39cce9
  13. 21 5月, 2019 1 次提交
  15. 20 3月, 2019 1 次提交
  17. 06 12月, 2018 1 次提交
  19. 10 5月, 2018 1 次提交
  21. 08 3月, 2018 1 次提交
  23. 05 3月, 2018 1 次提交
  25. 23 2月, 2018 1 次提交
    • A
      media: dvb: fix DVB_MMAP dependency · 85e60bd7
      由 Arnd Bergmann 提交于 
      Enabling CONFIG_DVB_MMAP without CONFIG_VIDEOBUF2_VMALLOC results
in a link error:

drivers/media/dvb-core/dvb_vb2.o: In function `_stop_streaming':
dvb_vb2.c:(.text+0x894): undefined reference to `vb2_buffer_done'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_init':
dvb_vb2.c:(.text+0xbec): undefined reference to `vb2_vmalloc_memops'
dvb_vb2.c:(.text+0xc4c): undefined reference to `vb2_core_queue_init'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_release':
dvb_vb2.c:(.text+0xe14): undefined reference to `vb2_core_queue_release'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_stream_on':
dvb_vb2.c:(.text+0xeb8): undefined reference to `vb2_core_streamon'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_stream_off':
dvb_vb2.c:(.text+0xfe8): undefined reference to `vb2_core_streamoff'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_fill_buffer':
dvb_vb2.c:(.text+0x13ec): undefined reference to `vb2_plane_vaddr'
dvb_vb2.c:(.text+0x149c): undefined reference to `vb2_buffer_done'

This adds a 'select' statement for it, plus a dependency that
ensures that videobuf2 in turn works, as it in turn depends on
VIDEO_V4L2 to link, and that must not be a module if videobuf2
is built-in.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
      85e60bd7
  27. 05 1月, 2018 1 次提交
  29. 29 12月, 2017 1 次提交
  31. 20 8月, 2017 1 次提交
  33. 18 7月, 2017 1 次提交
    • H
      media: cec-pin: add low-level pin hardware support · ea5c8ef2
      由 Hans Verkuil 提交于 
      Add support for CEC hardware that relies on low-level pin polling or
GPIO interrupts.

One example is the Allwinner SoC. But any GPIO-based CEC implementation can
use this as well.

A GPIO implementation is very suitable as well for debugging: it can use
interrupts to detect state changes and report it. Userspace can then verify
if the bus traffic is correct. This also makes error injection possible.

The disadvantage is that it is hard to get the timings right since linux
isn't a hard realtime system.

In general on an idle system it works quite well, but under load the timer
will miss its mark every so often.

The debugfs file /sys/kernel/debug/cec/cecX/status gives some statistics
with respect to the timer overruns.

When the adapter is unconfigured and the low-level driver supports
interrupts, then the interrupt will be used to detect changes. This should
be quite accurate. But when the adapter is configured a hrtimer has to be
used.

The hrtimer implements a state machine where for each state the code will
read the bus or drive the bus and go on to the next state. It will re-arm
the timer with a delay based on the next state.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
      ea5c8ef2
  35. 05 6月, 2017 2 次提交
  37. 19 4月, 2017 1 次提交
    • H
      [media] cec: Kconfig cleanup · 56a263aa
      由 Hans Verkuil 提交于 
      The Kconfig options for the CEC subsystem were a bit messy. In
addition there were two cec sources (cec-edid.c and cec-notifier.c)
that were outside of the media/cec directory, which was weird.

Move those sources to media/cec as well.

The cec-edid and cec-notifier functionality is now part of the cec
module and these are no longer separate modules.

Also remove the MEDIA_CEC_EDID config option and include it with the
main CEC config option (which defined CEC_EDID anyway).

Added static inlines to cec-edid.h for dummy functions when CEC_CORE
isn't defined.

CEC drivers should now depend on CEC_CORE.

CEC drivers that need the cec-notifier functionality must explicitly
select CEC_NOTIFIER.

The s5p-cec and stih-cec drivers depended on VIDEO_DEV instead of
CEC_CORE, fix that as well.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Acked-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
      56a263aa
  39. 10 4月, 2017 1 次提交