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Given that activating a trigger can fail, let the callback return an
indication. This prevents to have a trigger active according to the
"trigger" sysfs attribute but not functional.
All users are changed accordingly to return 0 for now. There is no intended
change in behaviour.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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These files are licensed under GPL version 2 only. So use "GPL v2"
instead of "GPL" (which means v2 or later).
Also remove an empty (but commented) line at the end of the license
header which nicely proves in the context that the drivers are really v2
only :-)
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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The LM36922 has one output but can sync current to 2 LED
strings. The user may only use one sync so the other
syncs need to be disabled.
The LM36923 has 3 LED syncs.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Update the binding to be able to configure the LED
sync to turn on.
The LM36922 has one output but can sync current to 2 LED
strings. The user may only use one sync so the other
syncs need to be disabled.
The LM36923 has 3 LED syncs.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Update the code to use the fwnode calls as opposed
to ARM DT node api's.
This allows the device to be used with either DT
configurations or ACPI definitions.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Update the license header to the current
SPDX licensing format.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Variable mode is assigned to pdata->led_pdata->mode[led->id] and yet
is not being used when calling function max8997_led_set_mode. Fix
this by using mode when calling max8997_led_set_mode.
Cleans up clang warning:
warning: variable 'mode' set but not used [-Wunused-but-set-variable]
Fixes: 8584cb82f151 ("leds: Add suuport for MAX8997-LED driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Update the email address in the module information and in the comments
and in the module information, and drop the existing boilerplate in
favor of a SPDX header.
Also sync the module license information with the header.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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The binding details are described in an earlier commit that adds the
documentation.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Clean up the code a bit and transition over to the gpiod based interface.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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In preparation to DT probe functionality, merge create_lt3593_led() into
its only call-site. The DT based setup code will be quite different, so this
internal helper function is of no help.
This also changes the way the driver works by only handling one entry inside
'struct gpio_led_platform_data'. If multiple devices of the same type are
found in a design, there should be a platform device for each of them. The
only mainline user of this driver is not affected by this change.
Last, use devm_led_classdev_register() instead of
led_classdev_register(), so the driver's remove callback can go away.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Uwe Kleine-König
Dan Murphy
Colin Ian King
Daniel Mack