Commit graph

9 commits

Author SHA1 Message Date
Christophe JAILLET
967ea03cc3 leds: ktd2692: Fix a typo in the name of a constant
There is a typo in KTD2962_MM_MIN_CURR_THRESHOLD_SCALE. 6 and 9 are
switched in 2962.

Define and use KTD2692_MM_MIN_CURR_THRESHOLD_SCALE instead.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Enrico Weigelt <info@metux.net>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-07-22 21:43:12 +02:00
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Arnd Bergmann
cbe99c538d leds: ktd2692: avoid harmless maybe-uninitialized warning
gcc gets confused about the control flow in ktd2692_parse_dt(), causing
it to warn about what seems like a potential bug:

drivers/leds/leds-ktd2692.c: In function 'ktd2692_probe':
drivers/leds/leds-ktd2692.c:244:15: error: '*((void *)&led_cfg+8)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/leds/leds-ktd2692.c:225:7: error: 'led_cfg.flash_max_microamp' may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/leds/leds-ktd2692.c:232:3: error: 'led_cfg.movie_max_microamp' may be used uninitialized in this function [-Werror=maybe-uninitialized]

The code is fine, and slightly reworking it in an equivalent way lets
gcc figure that out too, which gets rid of the warning.

Fixes: 77e7915b15 ("leds: ktd2692: Add missing of_node_put")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-01-26 21:16:38 +01:00
Ingi Kim
77e7915b15 leds: ktd2692: Add missing of_node_put
The refcount of device_node increases after of_node_get() is called.
So, a break out of the loop requires of_node_put().

This patch adds missing of_node_put() when loop breaks.

Signed-off-by: Ingi Kim <ingi2.kim@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-01-04 09:57:37 +01:00
Jacek Anaszewski
9d79a05e94 leds: ktd2692: Remove work queue
Now the core implements the work queue, remove it from the drivers,
and switch to using brightness_set_blocking op.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Cc: Ingi Kim <ingi2.kim@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
2016-01-04 09:57:31 +01:00
Jacek Anaszewski
437a4240f2 leds: Rename brightness_set_sync op to brightness_set_blocking
The initial purpose of brightness_set_sync op, introduced along with
the LED flash class extension, was to add a means for setting torch LED
brightness as soon as possible, which couldn't have been guaranteed by
brightness_set op. This patch renames the op to brightness_set_blocking,
which describes its purpose in a more generic way. It is beneficial
in view of the prospective changes in the LED core, aiming at removing
the need for using work queues in LED class drivers that can sleep
or use delays while setting brightness.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2016-01-04 09:57:30 +01:00
Luis de Bethencourt
3682c7bdf5 leds: ktd2692: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17 10:02:00 +02:00
Uwe Kleine-König
5e324ebf01 leds: ktd2692: pass flags parameter to devm_gpiod_get
Since 39b2bbe3d7 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for output.

In this case the driver cannot easily be simplified but as the flags
parameter will become mandatory soon this change is necessary
beforehand.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
2015-06-22 13:57:16 -07:00
Ingi Kim
b7da8c5c72 leds: Add ktd2692 flash LED driver
This patch adds a driver to support the ktd2692 flash LEDs.
ktd2692 can control flash current by ExpressWire interface.

Signed-off-by: Ingi Kim <ingi2.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
2015-05-25 13:26:44 -07:00