Driver for the TI LP5562 4 channel LED controller. Supports
independent on/off control of all 4 channels. Supports LED_BLINK on 3
independent channels: blue/green/red. The white channel can blink, but
shares the blue channel blink rate.
Heavily based on patch originally from Doug Zobel [1].
I have modified it so it matches the DT bindings in the linux tree,
and also follows the linux driver implementation more closely. This
should address Tom's concerns, and also matches my goal of making the
U-Boot driver work with our existing .dts which is known to work in
linux.
As our boards only have the R,G,B outputs connected, I have not
actually tested how the white channel behaves, but the R,G,B work
exactly as expected.
[1] https://lore.kernel.org/u-boot/1547150757-1561-1-git-send-email-douglas.zobel@climate.com/
Cc: Doug Zobel <douglas.zobel@climate.com>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Use the helper led_bind_generic() to reduce code duplication.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Use the helper led_bind_generic() to reduce code duplication.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
All existing drivers in drivers/led/ contain a .bind method that does
exactly the same thing, with just the actual driver name
differing. Create a helper so all those individual methods can be
changed to one-liners.
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Many existing drivers, and led-uclass itself, rely on uc_plat->label
being NULL for the device representing the top node, as opposed to the
child nodes representing individual LEDs. This means that the drivers
whose .probe methods rely on this were broken by commit 83c63f0d11
("led: Move OF "label" property parsing to core"), and also that the top
node wrongly shows up with 'led list'.
Binding the same driver to the top node as to the individual child
nodes is arguably wrong, and the approach of using a UCLASS_NOP driver
for the top node is probably better - this has for example been done in
commit 0107469780 ("led: gpio: Use NOP uclass driver for top-level
node") and commit 910b01c27c ("drivers: led: bcm6753: do not use null
label to find the top")
Until remaining affected drivers are fixed, we can use a heuristic
that only sets the label to the fallback value derived from the node
name if the node does not have a "compatible" property - i.e., if it
has been bound to the LED driver explicitly via
device_bind_driver_to_node(). This is similar to what commit
e3aa76644c ("led: gpio: Check device compatible string to determine
the top level node") did for gpio_led, but that fix was then supplanted
by commit 0107469780 ("led: gpio: Use NOP uclass driver for top-level
node")
Fixes: 83c63f0d11 ("led: Move OF "label" property parsing to core")
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
If the driver's own .bind method has populated uc_plat->label, don't
override that. This is necessary for an upcoming driver for ti,lp5562,
where the DT binding unfortunately says to use "chan-name" and not
"label".
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
This driver considers that a node with an empty label is the top.
But the led class has changed, if a label is not provided for a led,
the label is filed with the node name. So we update this driver
to use a wrapper to manage the top led node.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
This driver considers that a node with an empty label is the top.
But the led class has changed, if a label is not provided for a led,
the label is filed with the node name. So we update this driver
to use a wrapper to manage the top led node.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
As CONFIG_ARCH_BCM6753 is replaced with CONFIG_BCM6855, update the
driver Kconfig to use the new config symbol.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
As CONFIG_ARCH_BCM6858 is replaced with CONFIG_BCM6858, update the
driver Kconfig to use the new config symbol.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
As CONFIG_ARCH_BCM68360 is replaced with CONFIG_BCM6856, update the
driver Kconfig to use the new config symbol.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
As CONFIG_ARCH_BCM63158 is replaced with CONFIG_BCM63158, update the
Kconfig to use the new config symbol.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
The top level DT node of pwm-leds is not a LED itself, bind NOP uclass
driver to it, and bind different LED uclass driver to its subnodes which
represent the actual LEDs. This change removes the top-level node from
the 'led list' command output and is based on the commit 0107469780
("led: gpio: Use NOP uclass driver for top-level node").
Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
Tighten up symbol dependencies in a number of places. Ensure that a SPL
specific option has at least a direct dependency on SPL. In places
where it's clear that we depend on something more specific, use that
dependency instead. This means in a very small number of places we can
drop redundant dependencies.
Reported-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
This function is empty, drop it.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
The top level DT node of gpio-leds is not a LED itself, bind NOP uclass
driver to it, and bind different LED uclass driver to its subnodes which
represent the actual LEDs. This simplifies the probe() implementation
and fixes the bogus top-level not-an-LED in 'led list' command output:
```
=> led list
led Error -121 <--- This is removed/fixed by this patch
green:user0 off
```
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
Since 2d1deaf88e ("led: gpio: Drop duplicate OF "label" property parsing"),
all LED nodes have some sort of label. Use device_is_compatible(..."leds-gpio")
to determine whether this is a top-level node, since it is only the top
level node which is compatible with "leds-gpio", the GPIO LEDs subnodes
are not.
Fixes: 2d1deaf88e ("led: gpio: Drop duplicate OF "label" property parsing")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
Calling device_probe() from uclass .post_bind() callback has all kinds
of odd side-effects, e.g. device instances not being available just yet.
Make use of the DM_FLAG_PROBE_AFTER_BIND instead, mark device instances
which need to be probe()d in order to configure the LED default state
with this flag and let the DM core do the device_probe() at the right
time instead.
Fixes: 72675b063b ("led: Configure LED default-state on boot")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
In case the DT LED subnode contains "default-state" property set to
either "on" or "off", probe the LED driver and configure the LED state
automatically.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
[trini: Update the relevant test now that we have support]
Signed-off-by: Tom Rini <trini@konsulko.com>
The OF "label" property parsing is now handled in LED core,
drop the duplicate implementation from this driver.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
The OF "label" property parsing is now handled in LED core,
drop the duplicate implementation from this driver.
Signed-off-by: Tom Rini <trini@konsulko.com>
The OF "label" property parsing is now handled in LED core,
drop the duplicate implementation from this driver.
Signed-off-by: Tom Rini <trini@konsulko.com>
The OF "label" property parsing is now handled in LED core,
drop the duplicate implementation from this driver.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
The OF "label" property parsing is now handled in LED core,
drop the duplicate implementation from this driver.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
The OF "label" property parsing is now handled in LED core,
drop the duplicate implementation from this driver.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
The OF "label" property parsing is now handled in LED core,
drop the duplicate implementation from this driver.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
Every driver in drivers/led/ currently does some form of "label" OF
property parsing in its bind() callback. Move this label parsing to
LED core, since this "label" OF property is a generic property. This
permits code deduplication in subseuqent patches.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
When probing the LEDs, a default brightness is set based on settings
from the U-Boot device tree, i.e. the 'default-brightness' property
of the LED nodes. If that property is not present, the default
maximum brightness is set.
This should make sure the LED controller's registers affecting the
brightness are correctly initialized and should give a consistent
behaviour.
Signed-off-by: Paul HENRYS <paul.henrys_ext@softathome.com>
Add a driver which allows to use of LEDs connected
to PWM (Linux compatible).
MAINTAINERS: add i.vozvakhov as a maintainer of leds-pwm
C(required during new functionality adding).
Signed-off-by: Ivan Vozvakhov <i.vozvakhov@corp.mail.ru>
Add the support of the LED IP for bcm6357. This
LED IP supports blinking, fading and pulsating,
but for the moment, only blinking is supported.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Define LOG_CATEGORY for all uclass to allow filtering with
log command.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This name is far too long. Rename it to remove the 'data' bits. This makes
it consistent with the platdata->plat rename.
Signed-off-by: Simon Glass <sjg@chromium.org>
We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).
Rename some of the latter variables to end with 'plat' for consistency.
Signed-off-by: Simon Glass <sjg@chromium.org>
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.
Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.
Signed-off-by: Simon Glass <sjg@chromium.org>
This change sets the output (hardware) polarity register instead of the
input (software) polarity register for the bcm6858 LED controller. The
logic was inverted (a LED configued active high behaved as active low).
Signed-off-by: Steven Lawrance <steven.lawrance@softathome.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
This more closely mirrors Linux's behaviour, and will make it easier to
transition to using function+color in the future.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add Cortina Access LED controller support for CAxxxx SOCs
Signed-off-by: Jway Lin <jway.lin@cortina-access.com>
Signed-off-by: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
CC: Simon Glass <sjg@chromium.org>
Add head file fixed link error and remove unused flashing function
Reviewed-by: Simon Glass <sjg@chromium.org>
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.
Move the compatibility features into a separate header file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Allow the led bcm6858 driver to be used on bcm63158.
They have the same led controller.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
The driver add the support of the led IP on bcm6858.
This led IP can drive up to 32 leds, and can handle
blinking.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
This patch save common LED property "default-state" value
in post bind of LED uclass.
The configuration for this default state is only performed when
led_default_state() is called;
It can be called in your board_init()
or it could added in init_sequence_r[] in future.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This reverts commit bc882f5d5c.
because this patch adds the probe of LED driver during the
binding phasis. It is not allowed in driver model because
the drivers (clock, pincontrol) needed by the LED driver can
be also probed before the binding of all the device and
it is a source of problems.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
In the device tree, the address for the led is located
in the parent node (for exemple leds), not in the led node
(for exemple led@0).
The commit "led: bcm6328: convert to use live dt"
(sha1: 8994551760)
change this behaviour and read the address in the led node.
We fix this by reading the base address for led
in the parent node.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
