linux/drivers/leds, branch v5.6

leds: lm3692x: Disable chip on brightness 0

2020-01-07T13:09:27Z

Otherwise there's a noticeable glow even with brightness 0. Also turning off the regulator can save additional power. Signed-off-by: Guido Günther Signed-off-by: Pavel Machek

leds: lm3692x: Split out lm3692x_leds_disable

2020-01-07T13:09:13Z

Move the relevant parts out of lm3692x_remove() and call it from there. No functional change. Signed-off-by: Guido Günther Acked-by: Pavel Machek Signed-off-by: Pavel Machek

leds: lm3692x: Move lm3692x_init and rename to lm3692x_leds_enable

2020-01-07T13:09:01Z

This moves lm3692x_init so it can be used from lm3692x_brightness_set. Rename to lm3692_leds_enable to pair up with lm3692x_leds_disable. No functional change. Signed-off-by: Guido Günther Acked-by: Pavel Machek Signed-off-by: Pavel Machek

leds: lm3692x: Make sure we don't exceed the maximum LED current

2020-01-07T13:08:38Z

The current is given by the formular from page 12 of https://www.ti.com/lit/ds/symlink/lm36922.pdf. We use this to limit the led's max_brightness using the led-max-microamp DT property. The formula for the lm36923 is identical according to the data sheet. Signed-off-by: Guido Günther Acked-by: Pavel Machek Signed-off-by: Pavel Machek

leds: lm3692x: Allow to configure over voltage protection

2020-01-05T23:41:06Z

Overvoltage protection is currently using the default of 29V. Make it configurable via DT. Signed-off-by: Guido Günther Acked-by: Pavel Machek Signed-off-by: Pavel Machek

leds: populate the device's of_node

2020-01-05T23:20:22Z

If initialization data is available and its fwnode is actually a of_node, store this information in the led device's structure. This will allow the device to use or provide OF-based API such (devm_xxx). Signed-off-by: Jean-Jacques Hiblot Signed-off-by: Pavel Machek

leds: Add managed API to get a LED from a device driver

2020-01-05T23:20:18Z

If the LED is acquired by a consumer device with devm_led_get(), it is automatically released when the device is detached. Signed-off-by: Jean-Jacques Hiblot Acked-by: Pavel Machek Signed-off-by: Pavel Machek

leds: Add of_led_get() and led_put()

2020-01-05T23:20:06Z

This patch adds basic support for a kernel driver to get a LED device. This will be used by the led-backlight driver. Only OF version is implemented for now, and the behavior is similar to PWM's of_pwm_get() and pwm_put(). Signed-off-by: Tomi Valkeinen Signed-off-by: Jean-Jacques Hiblot Acked-by: Pavel Machek Signed-off-by: Pavel Machek

leds: lm3532: add pointer to documentation and fix typo

2020-01-05T23:16:01Z

Add pointer to datasheet and fix typo in printk message. Signed-off-by: Pavel Machek

leds: lm3532: use extended registration so that LED can be used for backlight

2020-01-04T17:51:42Z

Signed-off-by: Pavel Machek