It has two main use cases:
1) Allow drivers to reset their hardware via a GPIO line in a standard fashion
as supplied by the reset framework.
This allows adhoc driver code requesting GPIOs etc to be replaced with a
single call to device_reset().
2) Allow hardware on discoverable busses to be rest via a GPIO line
without driver modifications.
Examples of the second use case include:
* SDIO wifi modules
* USB hub chips with a reset line
In this second use case the reset has to be done externally to the driver
managing the hardware since resetting the device from the driver's probe()
method will either do nothing (if the device needs to be reset before
ennumeration will work) or cause racy beahviour (when the device disappears
from the bus during probe()).
So, in addition to providing a gpio based reset controller implementation
it is also possible to reset devices at boot via a DT property or from
userspace on request via sysfs attributes.
Change-Id: I316f9e622d99cff7167b57e8fd5ff73a34dc2a81
Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Kevin Kim <ckkim@hardkernel.com>
This patch adds support of vendor sub directories for dtb files.
Subdirectories can be specified in $(dts-dirs). Kbuild traverses over
all directories while building and installing dtb files. The directory
tree is also reflected in the install path.
Change-Id: Iab8d4cf4b76f7122892e87137fd0ec60565e1db0
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
This adds the dtbs_install make target to arm64. The target has been
introduced already to arch/arm with the following commit:
f4d4ffc03e kbuild: dtbs_install: new make target
Implementation for arm64 is the same as for arm.
With 'dtbs_install' all config enabled dtb files are installed to
either the INSTALL_DTBS_PATH directory or the default location:
$INSTALL_PATH/dtbs/$KERNELRELEASE
Change-Id: I5605ea7d723e2a658f7d85177d1221b83d612bcb
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
PD#SWPL-16192
Problem:
ab301 ethernet can not link
Solution:
LED GPIO is GPIOH_0 and GPIOH_1
TL1 is the same gpio
Verify:
ab301
Change-Id: Id4e0a94a021d72d3b952d2dd15a86caf45a16ca0
Signed-off-by: qi duan <qi.duan@amlogic.com>
PD#SWPL-15167
Problem:
Coverity defect cleanup:hdmi rx
Solution:
Modify code according to coverity
Verify:
verify on the board of x3011
Change-Id: I1f8bac51101a5ae1a8a27ffd14e899b75ab99c04
Signed-off-by: Zhengrong Zhu <zhengrong.zhu@amlogic.com>
PD#SWPL-15143
Problem:
userspace program use the write() syscall to write the node.
when write the strlen() length content, it will fail.
Solution:
use the buf[size] to instead of buf[size-1]
Verify:
U200
Change-Id: I886d9a1cbf3da459476bca76c9a5708ecbc20afe
Signed-off-by: Ao Xu <ao.xu@amlogic.com>
PD#SWPL-13989
Problem:
Coverity defect cleanup: VOUT
Solution:
Modify code according to coverity
Verify:
verify on the board of U212
Change-Id: I787429350be37da84ccd85332e97d472f45d3826
Signed-off-by: Zhengrong Zhu <zhengrong.zhu@amlogic.com>
PD#SWPL-16197
Problem:
The data from the decoder is not equipped with a canvas.
Solution:
screenshot adds support for vframes without canvas.
Verify:
on X301
Change-Id: I706b87d6f59da27ffda7ace0d3486d6d978a292a
Signed-off-by: renjiang.han <renjiang.han@amlogic.com>
PD#SWPL-16188, PD#TV-11641, PD#TV-10181, PD#TV-9714
Problem:
fix atv audio no output when line frequency offset over 200Hz.
Solution:
1.fix atv audio no output when line frequency offset over 200Hz.
2.atv demod version: [V2.15].
Verify:
verified by tl1.
Change-Id: Ic43c707d3401ea93909856ff83a6842e14f0fc61
Signed-off-by: nengwen.chen <nengwen.chen@amlogic.com>
