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1,264,537 commits

Author SHA1 Message Date
Krzysztof Kozlowski
588d9f4b65 backlight: l4f00242t03: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-2-609b0cf24bde@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:29 +00:00
Krzysztof Kozlowski
23749cf3df backlight: gpio: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-1-609b0cf24bde@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:29 +00:00
Daniel Thompson
392346827f backlight: lp8788: Fully initialize backlight_properties during probe
props is stack allocated and the fields that are not explcitly set
by the probe function need to be zeroed or we'll get undefined behaviour
(especially so power/blank states)!

Fixes: c5a51053cf ("backlight: add new lp8788 backlight driver")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-4-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:29 +00:00
Daniel Thompson
abb5a5d951 backlight: lm3639: Fully initialize backlight_properties during probe
props is stack allocated and the fields that are not explcitly set
by the probe function need to be zeroed or we'll get undefined behaviour
(especially so power/blank states)!

Fixes: 0f59858d51 ("backlight: add new lm3639 backlight driver")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-3-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:29 +00:00
Daniel Thompson
0285e9efae backlight: da9052: Fully initialize backlight_properties during probe
props is stack allocated and the fields that are not explcitly set
by the probe function need to be zeroed or we'll get undefined behaviour
(especially so power/blank states)!

Fixes: 6ede3d832a ("backlight: add driver for DA9052/53 PMIC v1")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-2-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:29 +00:00
Luca Weiss
dc0ba74e51 backlight: lm3630a: Use backlight_get_brightness helper in update_status
As per documentation "drivers are expected to use this function in their
update_status() operation to get the brightness value.".

With this we can also drop the manual backlight_is_blank() handling
since backlight_get_brightness() is already handling this correctly.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-3-9ca62f7e4a33@z3ntu.xyz
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:29 +00:00
Luca Weiss
4bf7ddd2d2 backlight: lm3630a: Don't set bl->props.brightness in get_brightness
There's no need to set bl->props.brightness, the get_brightness function
is just supposed to return the current brightness and not touch the
struct.

With that done we can also remove the 'goto out' and just return the
value.

Fixes: 0c2a665a64 ("backlight: add Backlight driver for lm3630 chip")
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-2-9ca62f7e4a33@z3ntu.xyz
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:29 +00:00
Luca Weiss
ad9aeb0e3a backlight: lm3630a: Initialize backlight_properties on init
The backlight_properties struct should be initialized to zero before
using, otherwise there will be some random values in the struct.

Fixes: 0c2a665a64 ("backlight: add Backlight driver for lm3630 chip")
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-1-9ca62f7e4a33@z3ntu.xyz
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:29 +00:00
Daniel Thompson
7ee6478d5a backlight: mp3309c: Fully initialize backlight_properties during probe
props is stack allocated and, although this driver initializes all the
fields that are not "owned" by the framework, we'd still like to ensure
it is zeroed to avoid problems from this driver if the fields change.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-5-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:29 +00:00
Andy Shevchenko
d37831e059 backlight: mp3309c: Utilise temporary variable for struct device
We have a temporary variable to keep pointer to struct device.
Utilise it where it makes sense.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Link: https://lore.kernel.org/r/20240208184313.2224579-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Andy Shevchenko
ee7f026a26 backlight: mp3309c: Use dev_err_probe() instead of dev_err()
Replace dev_err() with dev_err_probe().

This helps in simplifing code and standardizing the error output.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240208184313.2224579-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Andy Shevchenko
b54c828bdb backlight: mp3309c: Make use of device properties
Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.

Add mod_devicetable.h include.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240208184313.2224579-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Jeffrey Hugo
76fa2a1eff dt-bindings: backlight: qcom-wled: Fix bouncing email addresses
Bjorn is no longer at Linaro.  Update his email address to @kernel to
match the .mailmap entry.

The servers for @codeaurora are long retired and messages sent there
will bounce.  Update Kiran's email address to match the .mailmap entry.

This will help anyone that is looking to reach out about this binding
and is not using .mailmap to pre-process their message.

Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240202180151.4116329-1-quic_jhugo@quicinc.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Andy Shevchenko
7ebac13edc backlight: hx8357: Utilise temporary variable for struct device
We have a temporary variable to keep pointer to struct device.
Utilise it inside the ->probe() implementation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20240201144951.294215-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Andy Shevchenko
7244d89ae3 backlight: hx8357: Make use of dev_err_probe()
Simplify the error handling in probe function by switching from
dev_err() to dev_err_probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20240201144951.294215-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Andy Shevchenko
2f15475b17 backlight: hx8357: Move OF table closer to its consumer
Move OF table near to the user.

While at it, drop comma at terminator entry.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20240201144951.294215-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Andy Shevchenko
64a633593e backlight: hx8357: Make use of device properties
Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.

Include mod_devicetable.h explicitly to replace the dropped of.h
which included mod_devicetable.h indirectly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240201144951.294215-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Sean Young
601eedb0b6 backlight: mp3309c: Use pwm_apply_might_sleep()
pwm_apply_state() is deprecated since commit c748a6d77c ("pwm: Rename
pwm_apply_state() to pwm_apply_might_sleep()"). This is the final user
in the tree.

Signed-off-by: Sean Young <sean@mess.org>
Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240128154905.407302-1-sean@mess.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Jianhua Lu
f1ac3c9825 backlight: ktz8866: Correct the check for of_property_read_u32
of_property_read_u32 returns 0 when success, so reverse the
return value to get the true value.

Fixes: f8449c8f73 ("backlight: ktz8866: Add support for Kinetic KTZ8866 backlight")
Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240129122829.16248-1-lujianhua000@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Andy Shevchenko
b1ba8bcb2d backlight: hx8357: Fix potential NULL pointer dereference
The "im" pins are optional. Add missing check in the hx8357_probe().

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/642e1230-3358-4006-a17f-3f297897ae74@moroto.mountain
Fixes: 7d84a63a39 ("backlight: hx8357: Convert to agnostic GPIO API")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240114143921.550736-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Abdel Alkuor
45066c4bbe leds: ncp5623: Add MS suffix to time defines
To make the time macro defines clearer, add MS as a suffix.

Signed-off-by: Abdel Alkuor <alkuor@gmail.com>
Link: https://lore.kernel.org/r/20240305133824.1551809-1-alkuor@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:20 +00:00
Abdel Alkuor
7b7e50f8f5 leds: Add NCP5623 multi-led driver
NCP5623 is DC-DC multi-LEDs driver which has three PWMs that can be
programmed up to 32 steps giving 32768 colors hue.

NCP5623 driver supports gradual dimming upward/downward with programmable
delays. Also, the driver supports driving a single LED or multi-LED
like RGB.

Signed-off-by: Abdel Alkuor <alkuor@gmail.com>
Link: https://lore.kernel.org/r/20240305042049.1533279-2-alkuor@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:18 +00:00
Abdel Alkuor
2c7c70f54f dt-bindings: leds: Add NCP5623 multi-LED Controller
NCP5623 is DC-DC multi-LED controller which can be used for RGB
illumination or backlight LCD display.

Signed-off-by: Abdel Alkuor <alkuor@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305042049.1533279-1-alkuor@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:17 +00:00
Randy Dunlap
a22f11305d leds: mlxreg: Drop an excess struct mlxreg_led_data member
Drop one struct member description to fix a kernel-doc warning:

drivers/leds/leds-mlxreg.c:42: warning: Excess struct member 'led_data' description in 'mlxreg_led_data'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20240229071931.7870-4-rdunlap@infradead.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:16 +00:00
Randy Dunlap
e7dd80b5fd leds: leds-mlxcpld: Fix struct mlxcpld_led_priv member name
Change "cled" to "cdev" to quieten kernel-doc warnings:

leds-mlxcpld.c:86: warning: Function parameter or struct member 'cdev' not described in 'mlxcpld_led_priv'
leds-mlxcpld.c:86: warning: Excess struct member 'cled' description in 'mlxcpld_led_priv'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20240229071931.7870-3-rdunlap@infradead.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:16 +00:00
Randy Dunlap
d0c2df0c7b leds: lm3601x: Fix struct lm3601_led kernel-doc warnings
Add a short struct description and remove one extraneous struct field
description to quieten these warnings:

leds-lm3601x.c:73: warning: missing initial short description on line:
 * struct lm3601x_led -
leds-lm3601x.c💯 warning: Excess struct member 'led_name' description in 'lm3601x_led'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20240229071931.7870-2-rdunlap@infradead.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:15 +00:00
Arnd Bergmann
08b7dab9f0 leds: Fix ifdef check for gpio_led_register_device()
gpio_led_register_device() is built whenever CONFIG_LEDS_GPIO_REGISTER is
enabled, and this may be used even when CONFIG_NEW_LEDS is turned off.

However, the stub declaration in the header is provided for all configs
without CONFIG_NEW_LEDS, resulting in a build failure:

drivers/leds/leds-gpio-register.c:24:1: error: redefinition of 'gpio_led_register_device'
   24 | gpio_led_register_device(int id, const struct gpio_led_platform_data *pdata)
      | ^
include/linux/leds.h:646:39: note: previous definition is here

Change the #ifdef check to match the definition.
Note: this apparently took years of randconfig builds to hit, since
a number of other drivers just 'select NEW_LEDS' anyway.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240228093834.2230004-1-arnd@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:14 +00:00
Krzysztof Kozlowski
6c27bf4c6d dt-bindings: leds: qcom-lpg: Narrow nvmem for other variants
Only few variants support PPG and store LPG per-channel data and pattern
in SDAM modules.  Disallow the nvmem for other variants to make the
binding precise.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240226073713.19045-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:14 +00:00
Krzysztof Kozlowski
615d49f552 dt-bindings: leds: qcom-lpg: Drop redundant qcom,pm8550-pwm in if:then:
"qcom,pm8550-pwm" is compatible with "qcom,pm8350c-pwm" (latter used as
fallback), thus it is enough for the "if:then:" clause to check for the
presence of the fallback "qcom,pm8350c-pwm".

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240226073713.19045-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:13 +00:00
Rafał Miłecki
64e558500d dt-bindings: leds: Add LED_FUNCTION_WAN_ONLINE for Internet access
It's common for routers to have LED indicating link on the WAN port.

Some devices however have an extra LED that's meant to be used if WAN
connection is actually "online" (there is Internet access available).

It was suggested to add #define for such use case.

Link: https://lore.kernel.org/linux-devicetree/80e92209-5578-44e7-bd4b-603a29053ddf@collabora.com/T/#u
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240223112223.1368-1-zajec5@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:12 +00:00
Ondrej Jirman
205c29887a leds: sgm3140: Add missing timer cleanup and flash gpio control
Enabling strobe and then setting brightness to 0 causes the driver to enter
invalid state after strobe end timer fires. We should cancel strobe mode
resources when changing brightness (aka torch mode).

Fixes: cef8ec8cbd ("leds: add sgm3140 driver")
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Link: https://lore.kernel.org/r/20240217191133.1757553-1-megi@xff.cz
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:12 +00:00
Duje Mihanović
2cd0d1db31 leds: expresswire: Don't depend on NEW_LEDS
The ExpressWire library does not depend on NEW_LEDS and selecting it
from a subsystem other than LEDs may cause Kconfig warnings:

WARNING: unmet direct dependencies detected for LEDS_EXPRESSWIRE
  Depends on [n]: NEW_LEDS [=n] && GPIOLIB [=y]
  Selected by [y]:
  - BACKLIGHT_KTD2801 [=y] && HAS_IOMEM [=y] && BACKLIGHT_CLASS_DEVICE [=y]

Move it out of the "if NEW_LEDS" block to allow selection from other
subsystems (in particular backlight) without raising this warning.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Closes: https://lore.kernel.org/20240212111819.936815-1-arnd@kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402161410.IG9I4odj-lkp@intel.com/
Suggested-by: Daniel Thompson <daniel.thompson@linaro.org>
Fixes: 25ae5f5f4168 ("leds: Introduce ExpressWire library")
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
Link: https://lore.kernel.org/r/20240216-expresswire-deps-v2-2-8be59c4a75f5@skole.hr
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:11 +00:00
Duje Mihanović
041d2a0ea7 Revert "leds: Only descend into leds directory when CONFIG_NEW_LEDS is set"
This reverts commit b1ae40a5db.

The ExpressWire library introduced in commit 25ae5f5f4168 ("leds:
Introduce ExpressWire library") does not depend on NEW_LEDS, but without
this revert it would never get compiled if NEW_LEDS is not enabled.
Revert this commit to allow the library to be compiled.

Link: https://lore.kernel.org/2cacd8dc-6150-4aa2-af9e-830a202fb0a8@app.fastmail.com
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
Link: https://lore.kernel.org/r/20240216-expresswire-deps-v2-1-8be59c4a75f5@skole.hr
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:10 +00:00
George Stark
6969d0a2ba leds: aw2013: Unlock mutex before destroying it
In the probe() callback in case of error mutex is destroyed being locked
which is not allowed so unlock the mutex before destroying.

Fixes: 59ea3c9faf ("leds: add aw2013 driver")
Signed-off-by: George Stark <gnstark@salutedevices.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20231214173614.2820929-2-gnstark@salutedevices.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:10 +00:00
Arnd Bergmann
bfa0f02d75 leds: qcom-lpg: Add QCOM_PBS dependency
The lpg driver fails to link now when the pbs driver is in a loadable module:

x86_64-linux-ld: drivers/leds/rgb/leds-qcom-lpg.o: in function `lpg_brightness_set':
leds-qcom-lpg.c:(.text+0xe7f): undefined reference to `qcom_pbs_trigger_event'
x86_64-linux-ld: drivers/leds/rgb/leds-qcom-lpg.o: in function `lpg_probe':
leds-qcom-lpg.c:(.text+0x16a5): undefined reference to `get_pbs_client_device'

Add a dependency to avoid the broken configuration. Apparently there is still
a use for lpg with pbs disabled entirely for certain chips, so allow both
but not LEDS_QCOM_LPG=y with QCOM_PBS=m.

Fixes: 214110175679 ("leds: rgb: leds-qcom-lpg: Add support for PPG through single SDAM")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Link: https://lore.kernel.org/r/20240212111526.829122-1-arnd@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:09 +00:00
Aren Moynihan
ec9aa8971f leds: rgb: leds-group-multicolor: Allow LEDs to stay on in suspend
If none of the managed LEDs enable LED_CORE_SUSPENDRESUME, then we
shouldn't need to set it here. This makes it possible to use multicolor
groups with GPIO LEDs that enable retain-state-suspended in the device
tree.

Signed-off-by: Aren Moynihan <aren@peacevolution.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Link: https://lore.kernel.org/r/20240206185400.596979-1-aren@peacevolution.org
[Lee: Changed the comment to respect proper grammar]
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:08 +00:00
Christian Marangi
415798bc07 leds: trigger: netdev: Fix kernel panic on interface rename trig notify
Commit d5e01266e7 ("leds: trigger: netdev: add additional specific link
speed mode") in the various changes, reworked the way to set the LINKUP
mode in commit cee4bd16c3 ("leds: trigger: netdev: Recheck
NETDEV_LED_MODE_LINKUP on dev rename") and moved it to a generic function.

This changed the logic where, in the previous implementation the dev
from the trigger event was used to check if the carrier was ok, but in
the new implementation with the generic function, the dev in
trigger_data is used instead.

This is problematic and cause a possible kernel panic due to the fact
that the dev in the trigger_data still reference the old one as the
new one (passed from the trigger event) still has to be hold and saved
in the trigger_data struct (done in the NETDEV_REGISTER case).

On calling of get_device_state(), an invalid net_dev is used and this
cause a kernel panic.

To handle this correctly, move the call to get_device_state() after the
new net_dev is correctly set in trigger_data (in the NETDEV_REGISTER
case) and correctly parse the new dev.

Fixes: d5e01266e7 ("leds: trigger: netdev: add additional specific link speed mode")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20240203235413.1146-1-ansuelsmth@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:08 +00:00
Marijn Suijten
1c5b72e60c leds: qcom-lpg: Add PM660L configuration and compatible
Inherit PM660L PMIC LPG/triled block configuration from downstream
drivers and DT sources, consisting of a triled block with automatic
trickle charge control and source selection, three colored led channels
belonging to the synchronized triled block and one loose PWM channel.

Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20240204-pm660l-lpg-v5-1-2f54d1a0894b@somainline.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:07 +00:00
Stefan Kalscheuer
ccc35ff2fd leds: spi-byte: Use devm_led_classdev_register_ext()
Use extended classdev registration to generate generic device names from
color and function enums instead of reading only the label from the
device tree.

Signed-off-by: Stefan Kalscheuer <stefan@stklcode.de>
Link: https://lore.kernel.org/r/20240204150726.29783-1-stefan@stklcode.de
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:06 +00:00
Amitesh Singh
46f02b681b leds: pca963x: Add support for suspend and resume
This implements power management for pca9633 which enables
device sleep and resume on system-wide sleep/hibernation

Signed-off-by: Amitesh Singh <singh.amitesh@gmail.com>
Link: https://lore.kernel.org/r/20240203162524.343936-1-singh.amitesh@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:06 +00:00
Heiner Kallweit
9225333e48 leds: triggers: Add helper led_match_default_trigger
Avoid code duplication and factor out common functionality to new
helper led_match_default_trigger().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/d78eef6f-c18c-4546-b83e-6d1890849154@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:05 +00:00
Heiner Kallweit
e838a5a110 leds: trigger: Stop exporting trigger_list
Commit 682e98564ffb ("leds: trigger: panic: Simplify
led_trigger_set_panic") removed the last external user of variable
trigger_list. So stop exporting it. If in future a need should arise
again to access this variable, I think we better add some accessor
instead of exporting the variable directly.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/ca185fb1-3a66-46b9-920e-bfecbe39c6bf@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:04 +00:00
Arnd Bergmann
09e3f3244e leds: Make flash and multicolor dependencies unconditional
Along the same lines as making devm_led_classdev_register() declared
extern unconditional, do the same thing for the two sub-classes
that have similar stubs.

The users of these interfaces go to great lengths to allow building
with both the generic leds API and the extended version, but realistically
there is not much use in this, so just simplify it to always rely
on it and remove the confusing fallback logic.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240109090715.982332-2-arnd@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:03 +00:00
Arnd Bergmann
211f8ec940 leds: Remove led_init_default_state_get() and devm_led_classdev_register_ext() stubs
These two functions have stub implementations that are called when
NEW_LEDS and/or LEDS_CLASS are disabled, theorerically allowing drivers
to optionally use the LED subsystem.

However, this has never really worked because a built-in driver is
unable to link against these functions if the LED class is in a loadable
module. Heiner ran into this problem with a driver that newly gained
a LEDS_CLASS dependency and suggested using an IS_REACHABLE() check.

This is the reverse approach, removing the stub entirely to acknowledge
that it is pointless in its current form, and that not having it avoids
misleading developers into thinking that they can rely on it.

This survived around 1000 randconfig builds to validate that any callers
of the interface already have the correct Kconfig dependency already,
with the exception of the one that Heiner just added.

Cc: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/linux-leds/0f6f432b-c650-4bb8-a1b5-fe3372804d52@gmail.com/T/#u
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240109090715.982332-1-arnd@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:02 +00:00
Colin Ian King
d0532248df leds: aw200xx: Make read-only array coeff_table static const
Don't populate the read-only array coeff_table on the stack at
run time, instead make it static const.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20240119232630.2752239-1-colin.i.king@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:02 +00:00
Heiner Kallweit
7eef64da0b leds: trigger: panic: Simplify led_trigger_set_panic
I don't see why we iterate over all triggers to find the panic trigger.
We *are* the panic trigger. Therefore we also know that the panic
trigger doesn't have an activate() hook. So we can simplify the code
significantly.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Link: https://lore.kernel.org/r/84c0fa67-2f03-4474-aa75-914d65d88dd0@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:01 +00:00
Rafał Miłecki
ec18a2a83b dt-bindings: leds: Add FUNCTION defines for per-band WLANs
Most wireless routers and access points can operate in multiple bands
simultaneously. Vendors often equip their devices with per-band LEDs.

Add defines for those very common functions to allow cleaner & clearer
bindings.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240117151736.27440-1-zajec5@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:00 +00:00
Heiner Kallweit
7e1121138c leds: triggers: default-on: Add module alias for module auto-loading
A bigger number of board device tree files, plus few drivers, set
default-on as default trigger for LED's. Therefore add an alias for
module auto-loading.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/7e94d26b-d772-4a07-b0f6-bb3111b9ff75@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:00 +00:00
Heiner Kallweit
cdac0fd2b7 leds: trigger: audio: Set module alias for module auto-loading
This a follow-up to 5edf7f11313d ("leds: trigger: Load trigger modules
on-demand if used as default trigger") and sets an alias for the audio
triggers.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/4663d2d8-660d-4af2-9f65-d95e95263923@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:47:59 +00:00
Florian Eckert
96d947d4ab Documentation: leds: Update led-trigger-tty ABI description
The 'led-trigger-tty' uses the same naming in the ABI documentation as
the 'led-trigger-netdev'. Which leads to the following warning when
building the documentation.

Warning: /sys/class/leds/<led>/rx is defined 2 times:
Documentation/ABI/testing/sysfs-class-led-trigger-tty:7
Documentation/ABI/testing/sysfs-class-led-trigger-netdev:49
Warning: /sys/class/leds/<led>/tx is defined 2 times:
Documentation/ABI/testing/sysfs-class-led-trigger-tty:15
Documentation/ABI/testing/sysfs-class-led-trigger-netdev:34

Renaming the 'What' path by prefixing it with 'tty_' solves this problem.

Fixes: 6dec659896 ("leds: ledtrig-tty: Add additional line state evaluation")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Link: https://lore.kernel.org/r/20240110133410.81645-1-fe@dev.tdt.de
Signed-off-by: Lee Jones <lee@kernel.org>
(cherry picked from commit ea411a8422c1d7f8193d726fb76ba09534b6a5fe)
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:47:59 +00:00