the connection between the motherboard and any tiles. Sometimes the
compatible is placed directly under this node, sometimes it is placed
in a subnode named "motherboard-bus". Sometimes the compatible includes
- "arm,vexpress,v2?-p1" sometimes (on software models) is is just
+ "arm,vexpress,v2?-p1" sometimes (on software models) it is just
"simple-bus". If the compatible is placed in the "motherboard-bus" node,
it is stricter and always has two compatibles.
type: object
#
# For multiple 'if' schema, group them under an 'allOf'.
#
-# If the conditionals become too unweldy, then it may be better to just split
+# If the conditionals become too unwieldy, then it may be better to just split
# the binding into separate schema documents.
allOf:
- if:
<&gpio1 15 0>;
In the above example, &gpio1 uses 2 cells to specify a gpio. The first cell is
-a local offset to the GPIO line and the second cell represent consumer flags,
-such as if the consumer desire the line to be active low (inverted) or open
+a local offset to the GPIO line and the second cell represents consumer flags,
+such as if the consumer desires the line to be active low (inverted) or open
drain. This is the recommended practice.
The exact meaning of each specifier cell is controller specific, and must be
Optional standard bitfield specifiers for the last cell:
- Bit 0: 0 means active high, 1 means active low
-- Bit 1: 0 mean push-pull wiring, see:
+- Bit 1: 0 means push-pull wiring, see:
https://en.wikipedia.org/wiki/Push-pull_output
1 means single-ended wiring, see:
https://en.wikipedia.org/wiki/Single-ended_triode
In either case placeholders are discouraged: rather use the "" (blank
string) if the use of the GPIO line is undefined in your design. Ideally,
-try to add comments to the dts file describing the naming the convention
+try to add comments to the dts file describing the naming convention
you have chosen, and specifying from where the names are derived.
The names are assigned starting from line offset 0, from left to right,
It is also possible to use pin groups for gpio ranges when pin groups are the
easiest and most convenient mapping.
-Both both <pinctrl-base> and <count> must set to 0 when using named pin groups
+Both <pinctrl-base> and <count> must be set to 0 when using named pin groups
names.
The property gpio-ranges-group-names must contain exactly one string for each
Elements of gpio-ranges-group-names must contain the name of a pin group
defined in the respective pin controller. The number of pins/GPIO lines in the
range is the number of pins in that pin group. The number of pins of that
-group is defined int the implementation and not in the device tree.
+group is defined in the implementation and not in the device tree.
If numerical and named pin groups are mixed, the string corresponding to a
numerical pin range in gpio-ranges-group-names must be empty.
As above, The Multimedia HW will go through SMI and M4U while it
access EMI. SMI is a bridge between m4u and the Multimedia HW. It contain
smi local arbiter and smi common. It will control whether the Multimedia
- HW should go though the m4u for translation or bypass it and talk
+ HW should go through the m4u for translation or bypass it and talk
directly with EMI. And also SMI help control the power domain and clocks for
each local arbiter.
default-state:
description:
The initial state of the LED. If the LED is already on or off and the
- default-state property is set the to same value, then no glitch should be
+ default-state property is set to the same value, then no glitch should be
produced where the LED momentarily turns off (or on). The "keep" setting
will keep the LED at whatever its current state is, without producing a
glitch.
'#gpio-cells':
description:
The first cell is the pin number.
- The second cell is is used to specify flags.
+ The second cell is used to specify flags.
See ../gpio/gpio.txt for more information.
const: 2
'#gpio-cells':
description:
The first cell is the pin number.
- The second cell is is used to specify flags.
+ The second cell is used to specify flags.
See ../gpio/gpio.txt for more information.
const: 2
'#gpio-cells':
description:
The first cell is the pin number.
- The second cell is is used to specify flags.
+ The second cell is used to specify flags.
See ../gpio/gpio.txt for more information.
const: 2
# latter case. We choose to use the XOR logic for GPIO CD and WP
# lines. This means, the two properties are "superimposed," for
# example leaving the GPIO_ACTIVE_LOW flag clear and specifying the
- # respective *-inverted property property results in a
+ # respective *-inverted property results in a
# double-inversion and actually means the "normal" line polarity is
# in effect.
wp-inverted:
mmc-pwrseq-simple.yaml. But now it\'s reused as a tunable delay
waiting for I/O signalling and card power supply to be stable,
regardless of whether pwrseq-simple is used. Default to 10ms if
- no available.
+ not available.
default: 10
supports-cqe:
- description:
The first register range should be the one of the DWMAC controller
- description:
- The second range is is for the Amlogic specific configuration
+ The second range is for the Amlogic specific configuration
(for example the PRG_ETHERNET register range on Meson8b and newer)
interrupts:
reg:
maxItems: 1
description:
- This define the LED index in the PHY or the MAC. It's really
+ This defines the LED index in the PHY or the MAC. It's really
driver dependent and required for ports that define multiple
LED for the same port.
reg:
maxItems: 1
description:
- This define the LED index in the PHY or the MAC. It's really
+ This defines the LED index in the PHY or the MAC. It's really
driver dependent and required for ports that define multiple
LED for the same port.
All skew control options are specified in picoseconds. The minimum
value is 0, the maximum value is 3000, and it can be specified in 200ps
- steps, *but* these values are in not fact what you get because this chip's
+ steps, *but* these values are in no way what you get because this chip's
skew values actually increase in 120ps steps, starting from -840ps. The
incorrect values came from an error in the original KSZ9021 datasheet
before it was corrected in revision 1.2 (Feb 2014), but it is too late to
- micrel,force-master:
Boolean, force phy to master mode. Only set this option if the phy
reference clock provided at CLK125_NDO pin is used as MAC reference
- clock because the clock jitter in slave mode is to high (errata#2).
+ clock because the clock jitter in slave mode is too high (errata#2).
Attention: The link partner must be configurable as slave otherwise
no link will be established.
Setting the RMII Reference Clock Select bit enables 25 MHz rather
than 50 MHz clock mode.
- Note that this option in only needed for certain PHY revisions with a
+ Note that this option is only needed for certain PHY revisions with a
non-standard, inverted function of this configuration bit.
Specifically, a clock reference ("rmii-ref" below) is always needed to
actually select a mode.
For subsystem bindings (anything affecting more than a single device),
getting a devicetree maintainer to review it is required.
- 3) For a series going though multiple trees, the binding patch should be
+ 3) For a series going through multiple trees, the binding patch should be
kept with the driver using the binding.
4) The DTS files should however never be applied via driver subsystem tree,
projects / thirdparty / kernel / stable.git / commitdiff
