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>
This reverts commit 7436b7dc4a.
revert this now, print_vpp_lut() stack is 1840, when this applied,
it will bigger than 1880. werror will be triggerd.
Change-Id: Ia7b084ee800081a75c70f4e6ea6ce739f113f2b8
PD#SWPL-14888
Problem:
New feature, dolby source vdin have de-scramble,
scrable function
Solution:
add feature for dv de scramble function
Verify:
tm2 ab301
Change-Id: Ib7c10fcf53232c84411ae366618b2ddcd9948527
Signed-off-by: Yong Qin <yong.qin@amlogic.com>
PD#SWPL-15713
Problem:
There are too many register access in vsync isr from pq
Solution:
Make register access quicker
Verify:
TL1
Change-Id: I72972ccb8f2cf1bd53eda7fc40697cb5df4f5ede
Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
PD#SWPL-16193
Problem:
add support s805y config for anning.
Solution:
add support s805y config for anning.
Anning(P244) copy from P215, and change soc with s805y
Verify:
verify by anning.
Change-Id: I4e09521833f37d96066bf0643b0e99077cd0c7be
Signed-off-by: Luan Yuan <luan.yuan@amlogic.com>
PD#TV-11347
Problem:
sometimes need power on from uboot state in kernel
Solution:
add bl policy to support different power on mode
Verify:
x301
Change-Id: I13c289523c6a77d713b3a770a5cdaf02afd01a11
Signed-off-by: Evoke Zhang <evoke.zhang@amlogic.com>
PD#SWPL-16036
Problem:
When the system starts up, wifi is turned on.
When we manually turn off wifi and start the
suspend & resume operation, we will find that
the sdio error is reported when we wake up
Solution:
Add the sdio_notify() interface to notify the
sdio controller when wifi is on/off, enabling
the keep_power standard to be configured when suspend.
Verify:
TL1
Change-Id: I48e0c31bf7ea80d3efd4b0d41b4af378e859dc15
Signed-off-by: Nan Li <nan.li@amlogic.com>
PD#SWPL-5167
Problem:
Reset tv core will cause the display flashing.
Solution:
remove the reset operation
Verify:
Verified on R311
Change-Id: Id9aa97dd0462d04bb2d83e5f0247acf3bcaabcd7
Signed-off-by: Brian Zhu <brian.zhu@amlogic.com>
